Click a button and be directed to new activity, Android

Click a button and be directed to new activity, Android - java

MainActivity.Java
package com.example.drexsprint.login;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
Button b1,b2;
EditText ed1,ed2;
TextView tx1;
int counter = 3;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.button);
ed1=(EditText)findViewById(R.id.editText);
ed2=(EditText)findViewById(R.id.editText2);
b2=(Button)findViewById(R.id.button2);
tx1=(TextView)findViewById(R.id.textView3);
tx1.setVisibility(View.GONE);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(ed1.getText().toString().equals("admin") &&
ed2.getText().toString().equals("1234")) {
Toast.makeText(getApplicationContext(), "Redirecting...",Toast.LENGTH_SHORT).show();
}
else{
Toast.makeText(getApplicationContext(), "Wrong Credentials",Toast.LENGTH_SHORT).show();
tx1.setVisibility(View.VISIBLE);
tx1.setBackgroundColor(Color.RED);
counter--;
tx1.setText(Integer.toString(counter));
if (counter == 0) {
b1.setEnabled(false);
}
}
}
});
b2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
finish();
}
});
}}
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Arduino Security"
android:id="#+id/textView"
android:textColor="#ff7aff24"
android:textSize="35dp"
android:layout_centerHorizontal="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editText"
android:hint="Enter Name"
android:focusable="true"
android:textColorHighlight="#ff7eff15"
android:textColorHint="#ffff25e6"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="textPassword"
android:ems="10"
android:id="#+id/editText2"
android:layout_below="#+id/editText"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignRight="#+id/editText"
android:layout_alignEnd="#+id/editText"
android:textColorHint="#ffff299f"
android:hint="Password" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Attempts Left:"
android:id="#+id/textView2"
android:layout_below="#+id/editText2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:textSize="25dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/textView3"
android:layout_alignTop="#+id/textView2"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignBottom="#+id/textView2"
android:textSize="25dp"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="login"
android:id="#+id/button"
android:layout_alignParentBottom="true"
android:textColor="#ddec0d"
android:background="#0e17c2"
android:layout_alignLeft="#+id/textView"
android:layout_alignStart="#+id/textView"
android:layout_centerHorizontal="true" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel"
android:id="#+id/button2"
android:layout_alignParentBottom="true"
android:background="#df0c0c"
android:textColor="#0dca07"
android:layout_alignRight="#+id/textView"
android:layout_alignEnd="#+id/textView"
android:layout_centerHorizontal="true" />
<TextView
android:text="Please Login:"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/textView4"
android:textSize="35dp"
android:layout_below="#+id/textView"
android:layout_centerHorizontal="true"
android:layout_marginTop="50dp" />
</RelativeLayout>
Second Screen App
screen.Java
package com.example.drexsprint.login;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class Screen extends AppCompatActivity {
private WebView myWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView = (WebView) findViewById(R.id.webView);
myWebView.getSettings().setDomStorageEnabled(true);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
});
}
public void Left(View view) {
myWebView.loadUrl("http://admin:0000000AA#10.0.1.16/?button2");
}
public void Right (View view) {
myWebView.loadUrl("http://admin:0000000AA#10.0.1.16/?button3");
}
public void Temp (View view) {
myWebView.loadUrl("http://admin:0000000AA#10.0.1.16/?button1");
}
public void Hum (View view) {
myWebView.loadUrl("http://admin:0000000AA#10.0.1.16/button1");
}
public void Photo (View view) {
goToUrl("http://admin:0000000AA#10.0.1.6/image.jpg");
}
private void goToUrl(String url) {
Uri uriUrl = Uri.parse(url);
Intent launchBrowser = new Intent(Intent.ACTION_VIEW, uriUrl);
startActivity(launchBrowser);
/** public void Photo (View view) {
// myWebView.loadUrl("http://admin:0000000AA#10.0.1.6/image.jpg");
}**/
}}
screen_layout
<WebView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/webView"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:visibility="invisible"
android:layout_above="#+id/button" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Rotate Left"
android:id="#+id/button"
android:onClick="Left"
android:backgroundTint="#0f50e8"
android:textColor="#f4d318"
android:layout_above="#+id/button4"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_toStartOf="#+id/button5"
android:layout_alignRight="#+id/button4"
android:layout_alignEnd="#+id/button4" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Rotate Right"
android:id="#+id/button2"
android:onClick="Right"
android:backgroundTint="#0f50e8"
android:textColor="#f4d318"
android:layout_below="#+id/webView"
android:layout_alignRight="#+id/webView"
android:layout_alignEnd="#+id/webView"
android:layout_alignLeft="#+id/button3"
android:layout_alignStart="#+id/button3" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Temp."
android:id="#+id/button3"
android:onClick="Temp"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:backgroundTint="#369d7c"
android:textColor="#f4d318" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Show Hum."
android:id="#+id/button4"
android:onClick="Hum"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:backgroundTint="#369d7c"
android:textColor="#f4d318" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Take Photo"
android:id="#+id/button5"
android:onClick="Photo"
android:backgroundTint="#589d36"
android:textColor="#f4d318"
android:layout_below="#+id/webView"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true" />
<VideoView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/videoView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_above="#+id/webView"
android:background="#0a0a0a"
android:clickable="true"
android:contextClickable="true"
android:focusable="true" />
</RelativeLayout>
Okay! So I got two aplications, the first one is a login screen and the second one is a main menu of what the application should do, I want to find a way so that when a user insert the correct credentials and click on the Login button the app executes the second screen the main menu, how can i do this, Join the two apps together.
Wat i wanna achieve is on the the click of "Login Button" on the first app it Launches the Second app as a window! Thanks!! Kind of new in android any detailed help would be much appreciated.

Use startActivityForResult() to get the result from another activity.
By the help of android startActivityForResult() method, we can send information from one activity to another and vice-versa.
Intent intent=new Intent(this,Class2.class);
startActivityForResult(intent,10);

Related

How do you turn a set string into speech in android studio?

I'm trying to find out how to set a string that will be read out-loud.
For example:
String text = "Hello";

You can find a very detail example that show how to convert text to speech on this site. HTH.
Your MainActivity.java should look something like this
import android.app.Activity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import java.util.Locale;
import android.widget.Toast;
public class MainActivity extends Activity {
TextToSpeech t1;
EditText ed1;
Button b1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ed1=(EditText)findViewById(R.id.editText);
b1=(Button)findViewById(R.id.button);
t1=new TextToSpeech(getApplicationContext(), new TextToSpeech.OnInitListener() {
#Override
public void onInit(int status) {
if(status != TextToSpeech.ERROR) {
t1.setLanguage(Locale.UK);
}
}
});
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String toSpeak = ed1.getText().toString();
Toast.makeText(getApplicationContext(), toSpeak,Toast.LENGTH_SHORT).show();
t1.speak(toSpeak, TextToSpeech.QUEUE_FLUSH, null);
}
});
}
public void onPause(){
if(t1 !=null){
t1.stop();
t1.shutdown();
}
super.onPause();
}
}
And here is the content of activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:transitionGroup="true">
<TextView android:text="Text to Speech" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/textview"
android:textSize="35dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Tutorials point"
android:id="#+id/textView"
android:layout_below="#+id/textview"
android:layout_centerHorizontal="true"
android:textColor="#ff7aff24"
android:textSize="35dp" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView"
android:src="#drawable/abc"
android:layout_below="#+id/textView"
android:layout_centerHorizontal="true"
android:theme="#style/Base.TextAppearance.AppCompat" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editText"
android:layout_below="#+id/imageView"
android:layout_marginTop="46dp"
android:hint="Enter Text"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:textColor="#ff7aff10"
android:textColorHint="#ffff23d1" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text to Speech"
android:id="#+id/button"
android:layout_below="#+id/editText"
android:layout_centerHorizontal="true"
android:layout_marginTop="46dp" />
</RelativeLayout>

i want to calculate the number and display results in textboxes of next screen layout in android

main activity.java
package abhilmohan.blogspot.com;
import android.R.string;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.app.ActionBar;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
public class MainActivity extends ActionBarActivity {
EditText amount1;
EditText amount2;
EditText amount3;
EditText amount4;
Button calculate;
double w=0;
double x=0;
double y=0;
double z=0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ActionBar bar= getActionBar();
bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ff0000")));
}
public void initcontrols() {
amount1=(EditText)findViewById(R.id.editText1);
amount2=(EditText)findViewById(R.id.editText2);
amount3=(EditText)findViewById(R.id.editText3);
amount4=(EditText)findViewById(R.id.editText4);
calculate=(Button)findViewById(R.id.button1);
}
public void calculate() {
w=Double.parseDouble(amount1.getText().toString());
x=Double.parseDouble(amount2.getText().toString());
y=w/12;
amount3.setText(Double.toString(y));
z=w*x/100;
amount4.setText(Double.toString(z));
}
public void gotoactivity (View v) {
Intent intent = new Intent(this,ResultPage.class);
calculate();
startActivity(intent);
}
am not getting result while calling calculator() void method on button click.i want my results to be published in two textviews created in reulst_page layout
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background"
android:gravity="left"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="abhilmohan.blogspot.com.MainActivity" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
style="#style/text_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="40dp"
android:layout_marginRight="40dp"
android:text="#string/ctc"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="75dp"
android:layout_marginLeft="30dp"
android:layout_marginRight="20dp"
android:layout_marginTop="-15dp"
android:inputType="number"
android:background="#drawable/rounded_edit_text"
android:ems="10"
android:padding="20dp"
android:paddingBottom="50dp"
android:textColor="#000000" />
<TextView
android:id="#+id/textView2"
style="#style/text_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="90dp"
android:layout_marginLeft="40dp"
android:layout_marginTop="-30dp"
android:text="#string/TDS"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="-70dp"
android:background="#drawable/rounded_edit_text"
android:inputType="number"
android:ems="10"
android:padding="20dp"
android:paddingBottom="50dp" >
<requestFocus />
</EditText>
<Button
android:id="#+id/button1"
android:layout_width="177dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="60dp"
android:background="#drawable/button_style"
android:text="#string/ok"
android:textColor="#ffffff"
android:onClick="gotoactivity" />
</LinearLayout>
</RelativeLayout>
resultpage.java
package abhilmohan.blogspot.com;
import android.support.v7.app.ActionBarActivity;
import android.view.MenuItem;
import android.app.ActionBar;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
public class ResultPage extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.result_page);
getActionBar().setDisplayHomeAsUpEnabled(true);
ActionBar bar= getActionBar();
bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ff0000")));
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId()== android.R.id.home)
{
finish();
}
return super.onOptionsItemSelected(item);
}
}
result_page.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
style="#style/text_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="40dp"
android:layout_marginRight="40dp"
android:text="#string/amount"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/editText3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="75dp"
android:layout_marginLeft="30dp"
android:layout_marginRight="20dp"
android:layout_marginTop="-15dp"
android:background="#drawable/rounded_edit_text"
android:ems="10"
android:inputType="number"
android:padding="20dp"
android:paddingBottom="50dp"
android:textColor="#000000"
android:clickable="false"
android:cursorVisible="false"
android:focusable="false"
android:focusableInTouchMode="false" />
<TextView
android:id="#+id/textView2"
style="#style/text_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="90dp"
android:layout_marginLeft="40dp"
android:layout_marginTop="-30dp"
android:text="#string/tdsamount"
android:textAppearance="?android:attr/textAppearanceLarge" />
<EditText
android:id="#+id/editText4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="-70dp"
android:background="#drawable/rounded_edit_text"
android:ems="10"
android:inputType="number"
android:padding="20dp"
android:paddingBottom="50dp"
android:clickable="false"
android:cursorVisible="false"
android:focusable="false"
android:focusableInTouchMode="false" >
<requestFocus />
</EditText>
<Button
android:id="#+id/button2"
android:layout_width="177dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="60dp"
android:background="#drawable/button_style"
android:text="#string/rate"
android:textColor="#ffffff" />
</LinearLayout>

At the moment you are executing calculate() in the MainActivity.java second activity called ResultPage doesn't exist, therefore you can't change it's view (editText3and editText4).
In order to pass data to another activity you should fill your Intent with some extra data and then in your ResultPage activity's onCreate you would get underlying extras.
EDIT
MainActivity.java
public void gotoactivity (View v) {
calculate();
Intent intent = new Intent(this, ResultPage.class);
intent.putExtra("AMOUNT_3", y);
intent.putExtra("AMOUNT_4", z);
startActivity(intent);
}
ResultPage.java inside onCreate
Bundle extras = getIntent().getExtras();
if (extras != null) {
int amount3 = extras.getInt("AMOUNT_3");
int amount4 = extras.getInt("AMOUNT_4");
}

Switching between XML pages on button click

I have created my first android application I have 4 pages, I have set one page to be the menu and it has 3 buttons on it to switch between the pages. However I seem to be getting an error in my code, if someone could take a look and see where I am going wrong with this.
So this is my menu page (activity_main)
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.ifmdb.MainActivity"
tools:ignore="MergeRootFrame,HardcodedText" >
<TextView
android:id="#+id/txtMain"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_gravity="center"
android:text="#string/please_click_on_the_options_available"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="#+id/btnDOCare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="#+id/txtDOCare"
android:layout_below="#+id/txtDOCare"
android:layout_marginTop="30dp"
android:layout_gravity="center_vertical"
android:onClick="openDOCare"
android:text="#string/duty_of_care" />
<TextView
android:id="#+id/txtDOCare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/btnDock"
android:layout_marginLeft="202dp"
android:layout_marginTop="44dp"
android:layout_gravity="center"
android:text="#string/click_for_duty_of_care"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/txtVeCheck"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/txtDOCare"
android:layout_below="#+id/txtMain"
android:layout_marginTop="36dp"
android:text="#string/click_for_vehicle_checklist"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="#+id/btnCheck"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/btnDOCare"
android:layout_below="#+id/txtVeCheck"
android:layout_marginTop="37dp"
android:onClick="openChecklist"
android:text="#string/checklist" />
<TextView
android:id="#+id/txtDock"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="#+id/txtDOCare"
android:layout_below="#+id/btnCheck"
android:layout_marginTop="36dp"
android:text="#string/click_for_docket"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Button
android:id="#+id/btnDock"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="#+id/btnCheck"
android:layout_below="#+id/txtDock"
android:layout_marginTop="38dp"
android:onClick="openDocket"
android:text="#string/docket" />
</RelativeLayout>
and this is my Java class for it (Main Activity)
package com.example.ifmdb;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnHome = (Button)findViewById(R.id.btnHome);
btnHome.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent myIntent = new Intent(view.getContext(),
startActivityForResult(myIntent, 0);
}
});
}
}
This is my second page (checklist)
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.example.ifmdb.MainActivity$PlaceholderFragment" >
<TextView
android:id="#+id/txtTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/vehicle_safety_checklist"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/txtInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/please_check_each_box"
android:textAppearance="?android:attr/textAppearanceMedium" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="0.58" >
<TextView
android:id="#+id/txtInt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="20dp"
android:text="#string/interior"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/txtEx"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/txtInt"
android:layout_alignBottom="#+id/txtInt"
android:layout_alignParentRight="true"
android:layout_marginRight="113dp"
android:text="#string/exterior"
android:textAppearance="?android:attr/textAppearanceMedium" />
<CheckBox
android:id="#+id/cboxFLev"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/txtInt"
android:text="#string/fuel_level" />
<CheckBox
android:id="#+id/cboxTires"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxFLev"
android:layout_alignBottom="#+id/cboxFLev"
android:layout_alignLeft="#+id/txtEx"
android:text="#string/tires_wheels" />
<CheckBox
android:id="#+id/cboxWWash"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxFLev"
android:text="#string/windscreen_washer" />
<CheckBox
android:id="#+id/cboxExhaust"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxWWash"
android:layout_alignBottom="#+id/cboxWWash"
android:layout_alignLeft="#+id/cboxTires"
android:text="#string/exhaust" />
<CheckBox
android:id="#+id/cboxSWheel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxWWash"
android:text="#string/steering_wheel" />
<CheckBox
android:id="#+id/cboxLights"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxSWheel"
android:layout_alignBottom="#+id/cboxSWheel"
android:layout_alignLeft="#+id/cboxExhaust"
android:text="#string/lights_reflectors" />
<CheckBox
android:id="#+id/cboxBrakes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxSWheel"
android:text="#string/brakes" />
<CheckBox
android:id="#+id/cboxELeaks"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxBrakes"
android:layout_alignBottom="#+id/cboxBrakes"
android:layout_alignLeft="#string/_id_cboxlights"
android:text="#string/exterior_leaks" />
<CheckBox
android:id="#+id/cboxClutch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxBrakes"
android:text="#string/clutch" />
<CheckBox
android:id="#+id/cbocBody"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxClutch"
android:layout_alignBottom="#+id/cboxClutch"
android:layout_alignLeft="#string/_id_cboxeleaks"
android:text="#string/body" />
<CheckBox
android:id="#+id/cboxHorn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxClutch"
android:text="#string/horn" />
<TextView
android:id="#+id/txtEng"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/cbocBody"
android:layout_below="#+id/cboxHorn"
android:text="#string/engine"
android:textAppearance="?android:attr/textAppearanceMedium" />
<CheckBox
android:id="#+id/cboxHeater"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignTop="#+id/txtEng"
android:text="#string/heater" />
<CheckBox
android:id="#+id/cboxOil"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="#+id/cboxExhaust"
android:layout_below="#+id/cboxHeater"
android:text="#string/oil_level" />
<CheckBox
android:id="#+id/cboxSBelt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxOil"
android:layout_alignBottom="#+id/cboxOil"
android:layout_alignParentLeft="true"
android:text="#string/seat_belts" />
<CheckBox
android:id="#+id/cboxWLight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxCool"
android:layout_alignBottom="#+id/cboxCool"
android:layout_alignParentLeft="true"
android:text="#string/warning_lights" />
<CheckBox
android:id="#+id/cboxBelt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/cboxCool"
android:layout_below="#+id/cboxCool"
android:text="#string/belts" />
<CheckBox
android:id="#+id/cboxMirrors"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxWLight"
android:text="#string/mirrors" />
<CheckBox
android:id="#+id/cboxLeaks"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/cboxBelt"
android:layout_below="#+id/cboxBelt"
android:text="#string/engine_leaks" />
<CheckBox
android:id="#+id/cboxCool"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/cboxOil"
android:layout_below="#+id/cboxOil"
android:text="#string/coolant_level" />
<TextView
android:id="#+id/txtOther"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/cboxLeaks"
android:layout_alignParentLeft="true"
android:text="#string/other"
android:textAppearance="?android:attr/textAppearanceMedium" />
<CheckBox
android:id="#+id/cboxScrew"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/txtEng"
android:layout_below="#+id/cboxLeaks"
android:text="#string/loose_bolts_screws" />
<CheckBox
android:id="#+id/cboxWTri"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/cboxScrew"
android:layout_alignBottom="#+id/cboxScrew"
android:layout_alignParentLeft="true"
android:text="#string/warning_triangle" />
<CheckBox
android:id="#+id/cboxFire"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/cboxWTri"
android:text="#string/fire_extinguisher_first_aid_kit" />
<TextView
android:id="#+id/txtAddCom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="#string/additional_comments"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/txtAddComBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignRight="#+id/cboxLights"
android:layout_below="#+id/txtAddCom"
android:layout_marginTop="29dp" />
<TextView
android:id="#+id/txtFault"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="27dp"
android:text="#string/in_the_event_of_serious_faults_do_not_drive_the_vehicle"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/txtDefects"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/txtAddComBox"
android:layout_marginTop="110dp"
android:text="#string/defects"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/txtDefectsBox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignRight="#+id/cboxScrew"
android:layout_below="#+id/txtDefects"
android:layout_marginTop="25dp" />
<Button
android:id="#+id/btnHome"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toRightOf="#+id/cboxOil"
android:text="#string/home" />
</RelativeLayout>
</LinearLayout>
and this is that java class for that page (Checklist)
package com.example.ifmdb;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class Checklist extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.checklist);
Button btnCheck = (Button) findViewById(R.id.btnCheck);
btnCheck.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent intent = new Intent();
setResult(RESULT_OK, intent);
finish();
}
});
}
}
I have an error with a line of code
Intent myIntent = new Intent(view.getContext(),
startActivityForResult(myIntent, 0);
This is the error---
The constructor Intent(Context, void) is undefined
Syntax error, insert ")" to complete Variable Initializer

Try this code
public class MainActivity extends Activity {
private Activity mActivity = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mActivity = this;
Button btnHome = (Button)findViewById(R.id.btnHome);
btnHome.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent myIntent = new Intent(mActivity.getApplicationContext(),Checklist.class);
mActivity.startActivityForResult(myIntent, 0);
}
});
}
}

In the code its missing the syntax.
here is a tutorial
You can try this way. Hope it helps.
btnHome.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent myIntent = new Intent(getActivity(),Checklist.class);
startActivity(myIntent);
}
});

I got it fixed, you were right Atul O Holic i was missing a part of the code.
heres the working solution
package com.example.ifmdb;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnHome = (Button)findViewById(R.id.btnHome);
btnHome.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent myIntent = new Intent(view.getContext(),Checklist.class);
startActivityForResult(myIntent, 0);
}
});
}
}

When user logs in it navigates to home page

I'm just wondering if anyone can help me. I've created a login page which requests a user to enter their username and password. Once the details are correct it should move to my home page? I'm just wondering how I would do this. Thank you in advance
Here is my login xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#808080"
android:orientation="vertical" >
<!-- Login Title -->
<TextView
android:layout_width="222dp"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="20dp"
android:gravity="center_horizontal"
android:text="#string/login_title"
android:textColor="#FFFF00"
android:textSize="24sp" />
<!-- Login Image -->
<!-- layout for Username -->
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="260dp"
android:layout_marginTop="-75dp"
android:src="#drawable/logov2" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="60dp"
android:gravity="center_horizontal"
android:text="#string/pleaselogin"
android:textColor="#FFFFFF"
android:textSize="20sp" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:orientation="horizontal"
android:padding="10dp" >
<TextView
android:layout_width="60dp"
android:layout_height="match_parent"
android:layout_marginTop="0dp"
android:layout_weight="0.83"
android:text="#string/username"
android:textColor="#FFFF00"
android:textSize="24sp" />
<EditText
android:id="#+id/username1"
android:layout_width="200dp"
android:layout_height="30dp"
android:background="#FFFFFF"
android:ems="10"
android:inputType="text"
android:textSize="24sp" >
<requestFocus />
</EditText>
</LinearLayout>
<!-- layout for Password -->
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="67dp"
android:layout_marginTop="20dp"
android:orientation="horizontal"
android:padding="10dp" >
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="0dp"
android:layout_weight="1.0"
android:text="#string/password"
android:textColor="#FFFF00"
android:textSize="24sp" />
<EditText
android:id="#+id/password1"
android:layout_width="200dp"
android:layout_height="30dp"
android:background="#FFFFFF"
android:inputType="textPassword" />
</LinearLayout>
<Button
android:id="#+id/login1"
android:layout_width="150sp"
android:layout_height="50dp"
android:layout_marginLeft="200dp"
android:background="#FF0000"
android:text="#string/login"
android:textColor="#FFFFFF"
android:textSize="28sp" />
</LinearLayout>
Login class
package com.example.workplease;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.example.workplease_v2.R;
public class LoginActivity extends Activity {
String userName, passWord;
EditText username, password;
Button login;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.login);
// UI elements gets bind in form of Java Objects
username = (EditText)findViewById(R.id.username1);
password = (EditText)findViewById(R.id.password1);
login = (Button)findViewById(R.id.login1);
// now we have got the handle over the UI widgets
// setting listener on Login Button
// i.e. OnClick Event
login.setOnClickListener(loginListener);
}
private OnClickListener loginListener = new OnClickListener() {
public void onClick(View v) {
//getting inputs from user and performing data operations
if(username.getText().toString().equals("test") &&
password.getText().toString().equals("test")){
// responding to the User inputs
Toast.makeText(getApplicationContext(), "Login Successfully !!!", Toast.LENGTH_LONG).show();
}else
Toast.makeText(getApplicationContext(), "Login Not Successful !!!", Toast.LENGTH_LONG).show();
}
};
}
Home page XML
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#808080"
android:orientation="vertical"
tools:context=".Home" >
<TextView
android:id="#+id/title"
android:layout_width="220dp"
android:layout_height="100dp"
android:layout_marginLeft="45dp"
android:layout_marginTop="10dp"
android:gravity="center"
android:text="#string/description"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#FFFF00"
android:textSize="28sp" />
<ImageButton
android:id="#+id/exercise"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="70dp"
android:layout_marginTop="40dp"
android:src="#drawable/exercisesv2"
android:background="#null" />
<ImageButton
android:id="#+id/routines"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="70dp"
android:layout_marginTop="22dp"
android:src="#drawable/routines"
android:background="#null" />
<ImageButton
android:id="#+id/logbook"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="70dp"
android:layout_marginTop="22dp"
android:src="#drawable/logbook"
android:background="#null" />
<ImageButton
android:id="#+id/qrscanner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="70dp"
android:layout_marginTop="22dp"
android:src="#drawable/qrscanner1"
android:background="#null" />
<TextView
android:id="#+id/Copyright"
android:layout_width="206dp"
android:layout_height="wrap_content"
android:layout_marginLeft="260dp"
android:layout_marginTop="70dp"
android:text="#string/copyright"
android:textColor="#FFFF00"
android:textSize="14sp"
android:background="#null" />
<ImageView
android:id="#+id/Logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="260dp"
android:layout_marginTop="-550dp"
android:src="#drawable/logov2" />
</LinearLayout>
Home class
package com.example.workplease;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import com.example.workplease_v2.R;
public class Home extends Activity {
ImageButton imageButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home);
AddListenerOnButton();
AddListenerOnButton1();
}
public void AddListenerOnButton(){
final Context context = this;
imageButton = (ImageButton) findViewById(R.id.exercise);
imageButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent(context, Exercises.class);
startActivity(intent);
}
});
}
public void AddListenerOnButton1(){
final Context context = this;
imageButton = (ImageButton) findViewById(R.id.routines);
imageButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
Intent intent = new Intent(context, Routines.class);
startActivity(intent);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}

To start a new Activity you call startActivity(Intent intent)
Intent intent = new Intent(this, Home.class);
startActivity(intent);
So your loginListener button OnClickListener would perform this action:
public void onClick(View v) {
if(username.getText().toString().equals("test") &&
password.getText().toString().equals("test")){
// responding to the User inputs
Toast.makeText(getApplicationContext(), "Login Successfully !!!",
Toast.LENGTH_LONG).show();
Intent intent = new Intent(LoginActivity.this, Home.class);
startActivity(intent);
}else{
Toast.makeText(getApplicationContext(), "Login Not Successful !!!",
Toast.LENGTH_LONG).show();
}
}

Dialog + callback?

I have made a CustomTypeDialog class and what I want is to use EditText which is not in the active layout. I get a nullpointer exception when I try to click one of the buttons, which I think is because they are not in the active layout. Can you help me solve this? The dialog is called in an activity from another class.
package dk.droidrun.droidrunapp;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
public class CustomTypeDialog extends Dialog {
ImageButton routeType;
EditText txtType;
Button imageRun, imageBike, imageWalk;
public CustomTypeDialog(final Context context) {
super(context);
this.setContentView(R.layout.customtype_dialog);
routeType = (ImageButton)findViewById(R.id.saveRoute_activityType);
txtType = (EditText)findViewById(R.id.saveRoute_typeTxt);
imageRun = (Button)findViewById(R.id.dialog_btn1);
imageBike = (Button)findViewById(R.id.dialog_btn2);
imageWalk = (Button)findViewById(R.id.dialog_btn3);
setTitle("Select activity type");
show();
imageRun.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
txtType.setText("Run");
routeType.setBackgroundResource(R.drawable.track_run);
}
});
imageBike.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
txtType.setText("Bike");
routeType.setBackgroundResource(R.drawable.track_bike);
}
});
imageWalk.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
txtType.setText("Walk");
routeType.setBackgroundResource(R.drawable.track_walk);
}
});
}
}
This is my customtype_dialog.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".AutoMode"
android:background="#color/black" >
<RelativeLayout
android:id="#+id/dialog_relativeLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="3dp"
android:layout_above="#+id/dialog_relativeLayout2"
android:layout_centerHorizontal="true" >
<Button
android:id="#+id/dialog_btn1"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_margin="3dp"
android:background="#drawable/track_run"
android:layout_alignRight="#+id/dialog_relativeLayout1"
android:layout_alignTop="#+id/dialog_relativeLayout1"
/>
<Button
android:id="#+id/dialog_btn2"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_margin="3dp"
android:background="#drawable/track_bike"
android:layout_alignTop="#+id/dialog_relativeLayout1"
android:layout_toRightOf="#+id/dialog_btn1"
/>
<Button
android:id="#+id/dialog_btn3"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_margin="3dp"
android:layout_toRightOf="#+id/dialog_btn2"
android:background="#drawable/track_walk"
/>
</RelativeLayout>
</RelativeLayout>
saveroutes.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#color/black"
tools:context=".SaveRouteActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:text="#string/saveRoute"
android:textColor="#color/white"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:layout_marginTop="10dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#7a0100"
android:text="Enter a name for the route" />
<EditText
android:id="#+id/saveRoute_nameRoute"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:ems="10"
android:hint="#string/saveRoute_name"
android:textColor="#color/white"
android:background="#4e4751"
android:inputType="textPersonName" >
</EditText>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#7a0100"
android:text="Describe your route" />
<EditText
android:id="#+id/saveRoute_desciptionTxt"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:ems="10"
android:hint="#string/saveRoute_description"
android:textColor="#color/white"
android:background="#4e4751"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#7a0100"
android:text="Activity type (e.g. running)"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center_horizontal" >
<EditText
android:id="#+id/saveRoute_typeTxt"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_marginTop="17dip"
android:ems="10"
android:layout_marginLeft="30dp"
android:hint="#string/saveRoute_type"
android:textColor="#color/white"
android:background="#4e4751" >
<requestFocus />
</EditText>
<ImageButton
android:id="#+id/saveRoute_activityType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/track_walk" />
</LinearLayout>
<Button
android:id="#+id/saveRoute_saveBtn"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="30dp"
android:background="#color/white"
android:text="#string/saveRoute_savebutton" />
<Button
android:id="#+id/saveRoute_cancelBtn"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="30dp"
android:background="#color/white"
android:text="#string/saveRoute_cancel" />
</LinearLayout>

You cannot access views from another layout (your activity) using findViewById within the dialog view.
You need to add a callback listener for when the buttons on your dialog are clicked:
public interface OnDialogClickListener {
void onDialogImageRunClick();
}
public class CustomTypeDialog extends Dialog {
private final OnDialogClickListener listener;
public CustomTypeDialog(final Context context, OnDialogClickListener listener) {
this.listener = listener;
}
....
imageRun.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
listener.onDialogImageRunClick();
}
);
}
Then when you create your dialog in your Activity where you have access to the view:
new CustomTypeDialog(context, new CustomTypeDialog.OnDialogClickListener() {
#Override
public void onDialogImageRunClick() {
txtType.setText("Run");
routeType.setBackgroundResource(R.drawable.track_run);
}
});

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Java is a programming language and computing platform first released by Sun Microsystems in 1995.

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Use startActivityForResult() to get the result from another activity. By the help of android startActivityForResult() method, we can send information from one activity to another and vice-versa. Intent intent=new Intent(this,Class2.class); startActivityForResult(intent,10);

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