My Application won't start up?

My Application won't start up? - java

I'm not really sure why my application won't start up, I get no errors and I have no idea what's going on? I'm pretty new to android and this is just a basic calculator, but it keeps crashing every time I start it up.
***************Main Activity.java**********************
package com.example.alex.myapplication;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new Something(this);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
*******************Something.java******************
package com.example.alex.myapplication;
import android.app.Activity;
import android.view.View;
import android.widget.EditText;
import android.widget.Button;
public class Something extends Activity {
private Button add,subtract,multiply,devide;
private EditText editA, editB, editC;
private double doubleA,doubleB,doubleC;
public Something(Activity a) {
click();
}
public void click(){
editA = (EditText) findViewById(R.id.editText);
editB = (EditText) findViewById(R.id.editText2);
editC = (EditText) findViewById(R.id.editText3);
doubleA =Double.parseDouble(editA.getText().toString());
doubleB =Double.parseDouble(editB.getText().toString());
add = (Button) findViewById(R.id.add);
subtract = (Button) findViewById(R.id.subtract);
multiply = (Button) findViewById(R.id.multiply);
devide = (Button) findViewById(R.id.devide);
add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA+doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
subtract.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA-doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
multiply.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA*doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
devide.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
doubleC = doubleA/doubleB;
String s = "" + doubleC;
editC.setText(s);
}
});
}
}
******************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="#string/idk"
android:textSize="17sp"
android:id="#+id/textView"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="5"
android:id="#+id/editText"
android:hint="First number"
android:layout_centerVertical="true"
android:layout_alignLeft="#+id/textView"
android:layout_alignStart="#+id/textView" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="5"
android:id="#+id/editText2"
android:hint="Second number"
android:layout_centerVertical="true"
android:layout_alignRight="#+id/textView"
android:layout_alignEnd="#+id/textView" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add"
android:id="#+id/add"
android:layout_alignParentBottom="true"
android:layout_alignLeft="#+id/editText"
android:layout_alignStart="#+id/editText"
android:layout_marginBottom="166dp" />
<Button
android:layout_width="100dp"
android:layout_height="50dp"
android:text="Subtract"
android:id="#+id/subtract"
android:layout_alignTop="#+id/multiply"
android:layout_alignLeft="#+id/add"
android:layout_alignStart="#+id/add" />
<Button
android:layout_width="100dp"
android:layout_height="50dp"
android:text="Multiply"
android:id="#+id/multiply"
android:layout_marginTop="58dp"
android:layout_below="#+id/devide"
android:layout_alignRight="#+id/devide"
android:layout_alignEnd="#+id/devide" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Devide"
android:id="#+id/devide"
android:layout_below="#+id/editText"
android:layout_alignLeft="#+id/editText2"
android:layout_alignStart="#+id/editText2" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="20"
android:id="#+id/editText3"
android:layout_below="#+id/textView"
android:hint="Results"
android:layout_centerHorizontal="true"
android:layout_marginTop="62dp" />
</RelativeLayout>

The fact that you have created a constructor for the Something class
public Something(Activity a) {
click();
}
instead of using onCreate() is probably the source of the error.
Something is derived from Activity, in which you have to override onCreate() at the very least, and set the View of your Activity in it. You haven't done that, and instead you have created a constructor for Something which is also not allowed.
The solution to your problem is to replace the constructor with onCreate() and set the View of that Activity using setContentView(). Also, you cannot create an Activity object using
new Something(this);

Related

problems with activity layout when back button is pressed

I have this activity with EditViews and button. When the button is pressed I move on to a new activity. the problem is when the back button is pressed. The EditViews are not visible. What is expected is that the views and the text that was entered are visible. Also The buttons that appear are from the second activity and not the first.
<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="com.ammar.android.dailyjobsiteinspection2.MainActivity1Activity">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="350dp"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:id="#+id/scrollView">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:id="#+id/linearLayout">
<TextView
android:layout_width="fill_parent"
android:layout_height="0dp"
android:text="New Text"
android:id="#+id/textView"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:visibility="invisible" />
<EditText
android:layout_width="fill_parent"
android:layout_height="70dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:id="#+id/editText"
android:layout_gravity="center"
android:hint="Inspector ID"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="0dp"
android:text="New Text"
android:id="#+id/textView2"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:visibility="invisible" />
<EditText
android:layout_width="fill_parent"
android:layout_height="70dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:id="#+id/editText2"
android:layout_gravity="center"
android:hint="Site Name" />
<TextView
android:layout_width="fill_parent"
android:layout_height="0dp"
android:text="New Text"
android:id="#+id/textView3"
android:layout_gravity="center_horizontal"
android:visibility="invisible"
android:layout_weight="1" />
<EditText
android:layout_width="fill_parent"
android:layout_height="70dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:id="#+id/editText3"
android:layout_gravity="center"
android:hint="Site Address" />
<Button
android:layout_width="160dp"
android:layout_height="60dp"
android:text="Start"
android:id="#+id/button3"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_gravity="center_horizontal"
android:onClick="start"
android:layout_margin="5dp" />
</LinearLayout>
</ScrollView>
</RelativeLayout>
Here is the Java code:
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
public class MainActivity1Activity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_activity1);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main_activity1, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void start(View view){
EditText editText1 = (EditText) findViewById(R.id.editText);
EditText editText2 = (EditText) findViewById(R.id.editText2);
EditText editText3 = (EditText) findViewById(R.id.editText3);
if(!allFieldsEntered(editText1, editText2, editText3)){
com.ammar.android.dailyjobsiteinspection2.Message.message(this, "All fields must be filled before starting an Audit ");
}else{
Intent intent = new Intent(this, MainActivity11Activity.class);
Bundle bundle = getDataBundle(editText1, editText2, editText3);
intent.putExtras(bundle);
setContentView(R.layout.activity_main_activity11);
startActivity(intent);
}
}
private Bundle getDataBundle(EditText editText1, EditText editText2, EditText editText3) {
Bundle bundle = new Bundle();
bundle.putString(MainActivity.INSPECTORID, editText1.getText().toString());
bundle.putString(MainActivity.SITENAME, editText2.getText().toString());
bundle.putString(MainActivity.SITEADDRESS, editText3.getText().toString());
return bundle;
}
private boolean allFieldsEntered(EditText editText1, EditText editText2, EditText editText3) {
return !(editText1.getText().toString().matches("")
|| editText2.getText().toString().matches("")
|| editText3.getText().toString().matches(""));
}
}
Here is the second activity:
<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:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.ammar.android.dailyjobsiteinspection2.MainActivity11Activity">
<ScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:id="#+id/scrollView"
android:layout_gravity="center_horizontal"
android:layout_weight="1">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/layout"></LinearLayout>
</ScrollView>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="60dp"
android:id="#+id/layout2">
android:layout_gravity="center_horizontal">
<TextView
android:layout_width="0dp"
android:layout_height="fill_parent"
android:text="New Text"
android:id="#+id/textView4"
android:layout_weight="1"
android:visibility="invisible" />
<Button
android:layout_width="160dp"
android:layout_height="fill_parent"
android:text="Save"
android:id="#+id/button4"
android:onClick="save" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/textView5"
android:layout_weight="1"
android:visibility="invisible"/>
<Button
android:layout_width="160dp"
android:layout_height="fill_parent"
android:text="Submit"
android:id="#+id/button5"
android:onClick="submit" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/textView6"
android:layout_weight="1"
android:visibility="invisible"/>
</LinearLayout>
</LinearLayout>
and the Java code:
import android.app.ActionBar;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Typeface;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.text.Layout;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import java.util.ArrayList;
public class MainActivity11Activity extends ActionBarActivity {
private ArrayList<RadioGroup> radioGroupArrayList;
private String inspectorId;
private String siteName;
private String siteAddress;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_activity11);
setFields();
setUI();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main_activity11, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private void setFields() {
Intent intentBundle = getIntent(); // get intent
Bundle bundle = intentBundle.getExtras(); // get bundle from intent
inspectorId = bundle.getString(MainActivity.INSPECTORID);
siteName = bundle.getString(MainActivity.SITENAME);
siteAddress = bundle.getString(MainActivity.SITEADDRESS);
}
private void setUI() {
TextView textView;
radioGroupArrayList = new ArrayList<RadioGroup>();
LinearLayout ll = (LinearLayout) this.findViewById(R.id.layout);
int count = 0;
for(int i = 0; i<6; i++){
int id = getResources().getIdentifier("PreStart"+ i, "array" , getPackageName());
String [] questions = getResources().getStringArray(id);
textView = new TextView(this);
textView.setText(questions[0]);
textView.setTextSize(24);
textView.setTypeface(null, Typeface.BOLD);
ll.addView(textView);
TextView textView1;
TextView textView2;
RadioGroup radioGroup;
RadioButton radioButton1;
RadioButton radioButton2;
RadioButton radioButton3;
for (int j = 1; j< questions.length; j++){
textView1 = new TextView(this);
textView1.setText(questions[j]);
textView1.setTextSize(18);
radioGroup = new RadioGroup(this);
radioGroupArrayList.add(radioGroup);
radioButton1 = new RadioButton(this);
radioButton2 = new RadioButton(this);
radioButton3 = new RadioButton(this);
radioButton1.setText("Yes");
radioButton2.setText("No");
radioButton3.setText("NA");
radioButton1.setId(count);
radioButton2.setId(count+1);
radioButton3.setId(count+2);
count = count + 3;
radioGroup.addView(radioButton1);
radioGroup.addView(radioButton2);
radioGroup.addView(radioButton3);
radioButton1.setPadding(20, 20, 100, 20);
radioButton2.setPadding(20, 20, 100, 20);
radioButton3.setPadding(20, 20, 100, 20);
radioGroup.setOrientation(LinearLayout.HORIZONTAL);
textView2 = new TextView(this);
textView2.setVisibility(View.INVISIBLE);
ll.addView(textView1);
ll.addView(radioGroup);
ll.addView(textView2);
}
}
EditText editText = new EditText(this);
editText.setId(R.id.editText11);
editText.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT));
editText.setHint("Enter Comments Here");
ll.addView(editText);
}
public void save(View view){
AnswerListCreator answerCreator = new AnswerListCreator(radioGroupArrayList);
String[] answerList = answerCreator.getAnswerList();
String commentLog = ((EditText) findViewById(R.id.editText11)).getText().toString();
DBHelper dbHelper = new DBHelper(this);
SQLiteDatabase db = dbHelper.getWritableDatabase();
Site site = new Site(inspectorId, siteName, siteAddress, answerList, commentLog, 0);
dbHelper.insertSite(db, site);
// go back to main
Intent intent = new Intent(this, MainActivity.class);
setContentView(R.layout.activity_main);
startActivity(intent);
db.close();
finish();
}
public void submit(View view) {
AnswerListCreator answerCreator = new AnswerListCreator(radioGroupArrayList);
if (!answerCreator.isComplete()) {
com.ammar.android.dailyjobsiteinspection2.Message.message(this, "All fields must be checked");
} else {
answerCreator = new AnswerListCreator(radioGroupArrayList);
String[] answerList = answerCreator.getAnswerList();
String commentLog = ((EditText) findViewById(R.id.editText11)).getText().toString();
DBHelper dbHelper = new DBHelper(this);
SQLiteDatabase db = dbHelper.getWritableDatabase();
Site site = new Site(inspectorId, siteName, siteAddress, answerList, commentLog, 1);
dbHelper.insertSite(db, site);
// go back to main
Intent intent = new Intent(this, MainActivity.class);
setContentView(R.layout.activity_main);
startActivity(intent);
db.close();
finish();
}
}
}

You are changing first Activity's View before calling StartActivity.
Remove this in MainActivity1Activity:
setContentView(R.layout.activity_main_activity11);
Furthermore, if you want to keep view state in MainActivity1Activity don't start it again. Just call finish() in second activity.

making toast for validate edit text when i push a button

im tired to try this thing,can help me find out my solution.
I try to validate Edittext if edittext filed empty when i push a button will show a toast message.
this my layout.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=".MyActivity"
android:id="#+id/relativeLayout">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Panjang"
android:id="#+id/textView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_gravity="right|left" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="20"
android:id="#+id/editTextPanjang"
android:layout_below="#+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:maxLength="10"
android:hint="Panjang"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Lebar"
android:id="#+id/textView2"
android:layout_below="#+id/editTextPanjang"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_gravity="right|left"
/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="20"
android:id="#+id/editTextLebar"
android:layout_below="#+id/textView2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:maxLength="10"
android:hint="Lebar"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hitung Luas"
android:id="#+id/buttonHitungLuas"
android:layout_below="#+id/editTextLebar"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:onClick="hitugLuas"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Luas"
android:id="#+id/textView3"
android:layout_below="#id/buttonHitungLuas"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="20"
android:id="#+id/editTextLuas"
android:layout_below="#id/textView3"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editTextLuas"
android:id="#+id/buttonClear"
android:text="#string/btn_clear"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/buttonClear"
android:layout_below="#+id/editTextLuas"
android:id="#+id/buttonExit"
android:text="Exit"
/>
</RelativeLayout>
this my java
package com.example.aan.myfirstapp;
import android.content.Context;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MyActivity extends ActionBarActivity {
private EditText edtPanjang;
private EditText edtLebar;
private EditText edtLuas;
private Button btnHitungLuas;
private Button btnClear;
private Button btnExit;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
initUI();
initEvent();
}
private void initUI(){
edtPanjang = (EditText) findViewById(R.id.editTextPanjang);
edtLebar = (EditText) findViewById(R.id.editTextLebar);
edtLuas = (EditText) findViewById(R.id.editTextLuas);
btnHitungLuas = (Button) findViewById(R.id.buttonHitungLuas);
btnClear = (Button) findViewById(R.id.buttonClear);
btnExit = (Button) findViewById(R.id.buttonExit);
}
private void initEvent() {
btnHitungLuas.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
hitungLuas();
}
}
btnClear.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
clearData();
}
});
btnExit.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View paramView) {
MyActivity.this.finish();
}
});
}
private void hitungLuas(){
int panjang = Integer.parseInt(edtPanjang.getText().toString());
int lebar = Integer.parseInt(edtLebar.getText().toString());
int luas = panjang*lebar;
edtLuas.setText(luas+"");
}
private void clearData(){
edtLuas.setText("");
edtLebar.setText("");
edtPanjang.setText("");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_my, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Sory for my bad english
log chat when i run the emulator
03-12 09:29:21.784 1710-2323/com.google.process.gapps E/Backup﹕ [LegacyBackupAccountManager] Fail to get legacy transport context.
android.content.pm.PackageManager$NameNotFoundException: Application package com.google.android.backup not found
at android.app.ContextImpl.createPackageContextAsUser(ContextImpl.java:2139)
at android.app.ContextImpl.createPackageContext(ContextImpl.java:2115)
at android.content.ContextWrapper.createPackageContext(ContextWrapper.java:658)
at com.google.android.gms.backup.am.<init>(SourceFile:47)
at com.google.android.gms.backup.a.a(SourceFile:65)
at com.google.android.gms.backup.c.a(SourceFile:39)
at com.google.android.gms.backup.b.a(SourceFile:67)
at com.google.android.gms.backup.b.a(SourceFile:39)
at com.google.android.gms.backup.BackupAccountNotifierService.onHandleIntent(SourceFile:76)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.os.HandlerThread.run(HandlerThread.java:61)

You need to handle onClick of the button in this manner and show a toast if the edittext is empty
if(editText.getText().toString().trim().length()==0){
Toast.makeText(getApplicationContext(), "field is empty",
Toast.LENGTH_LONG).show();
}else{
//your code here
}

If you want to check for empty EditText.. try TextUtils for it.
Example
if (TextUtils.isEmpty(edtText.getText().toString().trim())) {
Toast.makeText(getBaseContext(),
"Empty", Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(getBaseContext(),
"Not Empty", Toast.LENGTH_SHORT)
.show();
}

unfortunately,myapp has stopped working [duplicate]

This question already has answers here:
Unfortunately MyApp has stopped. How can I solve this?
(23 answers)
Closed 8 years ago.
Here is my code and something i am in need is to use EditText as my output,i have no errors but after the main activity is loaded it say unfortunately myapp has stopped working.
Here is my MainActivity.java code::
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends ActionBarActivity implements android.view.View.OnClickListener{
Button b1,b2;
EditText t1,t2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1 = (Button) findViewById(R.id.button1);
b1.setOnClickListener(this);
t1 = (EditText) findViewById(R.id.editText2);
}
public void onClick(View v) {
float b;
if(v.getId()==R.id.button1){
float a = Float.valueOf(t1.getText().toString());
b=a*1024;
t2.setText(" "+b,TextView.BufferType.EDITABLE);
}
}
#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;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
xml code:
<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: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.techbolt.byteconverter.MainActivity" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="23dp"
android:text="#string/hello_world" />
<EditText
android:id="#+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textView1"
android:layout_centerHorizontal="true"
android:ems="10"
android:hint="#string/bit" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editText1"
android:layout_centerHorizontal="true"
android:text="#string/button" />
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/button1"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp"
android:text="#string/bytes" />
<EditText
android:id="#+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/editText1"
android:layout_below="#+id/textView2"
android:layout_marginTop="16dp"
android:ems="10"
android:hint="#string/bytes" />
</RelativeLayout>

You forgot to initialize your t2 variable. Please add below line:
t1 = (EditText) findViewById(R.id.editText1);
t2 = (EditText) findViewById(R.id.editText2);

Try to change
public void onClick(View v) {
float b;
if(v.getId()==R.id.button1){
float a = Float.valueOf(t1.getText().toString());
b=a*1024;
t2.setText(" "+b,TextView.BufferType.EDITABLE);
}
}
Via
public void onClick(View v) {
double b;
if(v.getId()==R.id.button1){
double e1 = Double.parseDouble(t1.getText().toString());
b=a*1024;
t2.setText(" "+String.valueOf(b),TextView.BufferType.EDITABLE);
}
}
and add
t1 = (EditText) findViewById(R.id.editText1);
t2 = (EditText) findViewById(R.id.editText2);

How do i exit runnable and switch another activity

I have a textview timer, i want it stops after 10 seconds of showing on display and after 10 seconds that my current activity jumps to an other activity
Runnable runnable = new Runnable()
{
#Override
public void run()
{
while(Running)
{
try{
Thread.sleep(1000);
}catch(InterruptedException e)
{
e.printStackTrace();
}
handler.post(new Runnable()
{
#Override
public void run()
{
number+=1;
tvTimer.setText(String.valueOf(number)); //With setting value of number on textfield ITS POSSIBLE TO SEE THE TIMER
if(number==10)
{
Running = false;
handler.removeCallbacks(this);//that does not works for me to stop
Intent i = new Intent(getApplicationContext(), SonucMenu.class);
startActivity(i); //Starting my second class
}
}
});
}
}
My Second activity starts but the layout from second activity comes more than one time, what i want is that it comes only one time, and i think this problem depends on that i cant stop runnable
Here My Complete original Code
MainActivity.class
package com.marburg.leftright;
import java.util.Random;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.ThreadPoolExecutor;
import com.marburg.leftright.R;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity {
static Random rnd=new Random();
static int rndN = rnd.nextInt(2);
TextView inf,tvSc, tvTimer;
Button btnL, btnR;
int ScoreRhtg = 0;
int ScoreFls = 0;
String right = "RIGHT";
String left = "LEFT";
private int number;
private Handler handler;
private boolean Running = true;
MediaPlayer mySound;
public void sendData()
{
String rData = Integer.toString(ScoreRhtg); //Score Of Right Answer Data setting
String wData = Integer.toString(ScoreFls);
Intent i = new Intent(getApplicationContext(), SonucMenu.class);
i.putExtra("DATA", rData);
i.putExtra("DATA2", wData);
startActivity(i);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.lr);
Intent intent = getIntent(); //Get Intent from SonucMenu.class to turn back MainActivity.java from New Button (This Class)
inf = (TextView)findViewById(R.id.tvInfo);
btnL = (Button)findViewById(R.id.btnL);
btnR = (Button)findViewById(R.id.btnR);
tvSc = (TextView)findViewById(R.id.tvScore);
//Set text left or right according new random number
if(rndN==1){
inf.setText(right);
}
else
{
inf.setText(left);
}
//Set 0 for Left
btnL.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{ //Set 0 for Left
if(rndN==0)
{
ScoreRhtg++;
tvSc.setText(ScoreRhtg+" Right");
rndN=rnd.nextInt(2); //Renew the random number
}
else
{
ScoreFls++;
tvSc.setText(ScoreFls+" False");
rndN=rnd.nextInt(2); //Renew the random number
}
//Set text left or right according new random number
if(rndN==1){
inf.setText(right);
}
else
{
inf.setText(left);
}
}
});
//Set 1 For Right
btnR.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(rndN==1)
{
ScoreRhtg++;
tvSc.setText(ScoreRhtg+" Right");
rndN=rnd.nextInt(2); //Renew the random number
}
else
{
ScoreFls++;
tvSc.setText(ScoreFls+" False");
rndN=rnd.nextInt(2); //Renew the random number
}
//Set text left or right according a new random number
if(rndN==1){
inf.setText(right);
}
else
{
inf.setText(left);
}
}
});
//FOR TIMER RESPONSIBLE PART OF CODE
tvTimer = (TextView)findViewById(R.id.tvTimer);
handler = new Handler();
Runnable runnable = new Runnable()
{
#Override
public void run()
{
while(Running)
{
try{
Thread.sleep(1000);
}catch(InterruptedException e)
{
e.printStackTrace();
}
handler.post(new Runnable()
{
#Override
public void run()
{
number+=1;
tvTimer.setText(String.valueOf(number)); //With setting value of number on textfield ITS POSSIBLE TO SEE THE TIMER
if(number==9)
{
mySound=MediaPlayer.create(MainActivity.this, R.raw.click);
mySound.start();
Running = false;
handler.removeCallbacks(this);//Doesnt works for me
sendData(); //sendData function startActivity(i) included
}
}
});
}
}
};
new Thread(runnable).start();
//END OF FOR TIMER RESPONSIBLE PART OF CODE
}
#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;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
And my Second Class SonucMenu.java
package com.example.timerdeneme2;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class SonucMenu extends MainActivity {
public TextView tvCorr, tvWro;
public Button btnNew, btnCls;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.sonuc_menu);
Intent i = getIntent();
Bundle dataBundle = i.getExtras();
String dataRString = dataBundle.getString("DATA");
String dataWString = dataBundle.getString("DATA2");
TextView tv = (TextView)findViewById(R.id.tvCorr);
TextView tvW = (TextView)findViewById(R.id.tvWro);
tv.setText(dataRString);
tvW.setText(dataWString);
btnNew = (Button)findViewById(R.id.btnNew);
btnNew.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
Toast.makeText(getApplicationContext(), "this is my Toast message!!! =)",
Toast.LENGTH_LONG).show();
Intent myIntent = new Intent(SonucMenu.this, MainActivity.class);
//myIntent.putExtra("key", value); //Optional parameters
SonucMenu.this.startActivity(myIntent);
}
});
btnCls=(Button)findViewById(R.id.btnEx);
btnCls.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
android.os.Process.killProcess(android.os.Process.myPid());
System.exit(1);
}
});
}
}
And XML Layouts lr.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:layout_marginLeft="16dp"
android:layout_marginTop="10dp"
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.marburg.leftright.MainActivity" >
<TextView
android:id="#+id/tvResCorr"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TableLayout
android:id="#+id/tableLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/tvResCorr"
android:layout_marginTop="14dp"
android:layout_toRightOf="#+id/tvResCorr" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/btnL"
android:layout_width="100dp"
android:layout_height="100dp"
android:text="L"
android:textSize="70dp" />
<Button
android:id="#+id/btnR"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginLeft="50dp"
android:text="R"
android:textSize="70dp" />
</TableRow>
<TableRow
android:id="#+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</TableRow>
<TableRow
android:id="#+id/tableRow3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</TableRow>
</TableLayout>
<TextView
android:id="#+id/tvInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/tableLayout1"
android:layout_alignRight="#+id/tableLayout1"
android:layout_below="#+id/tableLayout1"
android:layout_marginLeft="10dp"
android:layout_marginTop="200dp"
android:gravity="center"
android:text="Info"
android:textSize="24dp" />
<TextView
android:id="#+id/tvScore"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/tableLayout1"
android:layout_alignRight="#+id/tableLayout1"
android:layout_below="#+id/tvInfo"
android:layout_marginLeft="10dp"
android:layout_marginTop="20dp"
android:gravity="center"
android:text="Score"
android:textSize="24dp" />
<TextView
android:id="#+id/tvTimer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/tableLayout1"
android:layout_centerHorizontal="true"
android:text="Time" />
</RelativeLayout>
And sonuc_menu.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: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.marburg.leftright.MainActivity" >
<TableLayout
android:id="#+id/tableLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="36dp" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/tvResCorr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Correctness:" />
<TextView
android:id="#+id/tvCorr"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20sp"
android:text="X" />
</TableRow>
<TableRow
android:id="#+id/tableRow2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/tvResWro"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Wrongness" />
<TextView
android:id="#+id/tvWro"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20sp"
android:text="X" />
</TableRow>
</TableLayout>
<TableLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/tableLayout1"
android:layout_below="#+id/tableLayout1"
android:layout_marginTop="113dp" >
<TableRow
android:id="#+id/tableRow3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/btnNew"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:text="NEW" />
</TableRow>
<TableRow
android:id="#+id/tableRow4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="BEST SCORES" />
</TableRow>
<TableRow
android:id="#+id/tableRow5"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</TableRow>
<Button
android:id="#+id/btnEx"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:text="EXIT" />
<TableRow
android:id="#+id/tableRow6"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</TableRow>
</TableLayout>
</RelativeLayout>

I think for this you can use following code , It worked for me.
It will start your activity after 10 seconds.
new Handler().postDelay(new Runnable() {
#Override
public void run() {
Start Your activity here.
}
}, 10000);
but one of the best solution will be (I just found it from develoer site):
new CountDownTimer(10000, 1000) {
public void onTick(long millisUntilFinished) {
mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
}
public void onFinish() {
strat your activity here.
}
}.start();

Use View.post(Runnable) and View.postDelayed(Runnable, long), no need to create additional thread.
private TextView tvTimer;
private final Runnable mCountDownRunnable = new Runnable() {
private int mCount = 0;
#Override
public void run() {
mCount++;
if (mCount < 10) {
tvTimer.setText(Integer.toString(mCount));
tvTimer.postDelayed(this, 1000);
} else {
Intent i = new Intent(YourActivity.this, SonucMenu.class);
YourActivity.this.startActivity(i);
}
}
};
to start runnable, call tvTimer.post(mCountDownRunnable);

How would i make a button to switch where points go in a counter?

I am currently a high school student who decided to try and take up Android dev for fun, but I am stumped. I have an image button for blue team and for red team. The score goes up automatically for blue team. What i dont know how to do is when you hit the red button, the image buttons make the red teams score go up and vice versa.
Here is my java code
package com.example.puremmacompetitionjiujitsuscorer;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
class MainActivity extends Activity {
private int blueScore = 0;
private int redScore = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ImageButton sweep = (ImageButton) findViewById(R.id.imageButton5);
final ImageButton pass = (ImageButton) findViewById(R.id.imageButton8);
final ImageButton mount = (ImageButton) findViewById(R.id.imageButton4);
final ImageButton backMount = (ImageButton) findViewById(R.id.imageButton3);
final ImageButton kneeOnBelly = (ImageButton) findViewById(R.id.imageButton7);
final ImageButton takeDown = (ImageButton) findViewById(R.id.imageButton6);
final TextView blueScoreCount = (TextView) findViewById(R.id.blueScore1);
takeDown.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
blueScore += 2;
blueScoreCount.setText("" + blueScore);
}
});
sweep.setOnClickListener(new View.OnClickListener(){
public void onClick(View w) {
blueScore += 2;
blueScoreCount.setText("" + blueScore);
}
});
pass.setOnClickListener(new View.OnClickListener(){
public void onClick(View q){
blueScore += 3;
blueScoreCount.setText("" + blueScore);
}
});
mount.setOnClickListener(new View.OnClickListener(){
public void onClick(View t){
blueScore += 4;
blueScoreCount.setText("" + blueScore);
}
});
backMount.setOnClickListener(new View.OnClickListener(){
public void onClick(View s){
blueScore += 4;
blueScoreCount.setText("" + blueScore);
}
});
kneeOnBelly.setOnClickListener(new View.OnClickListener(){
public void onClick(View g){
blueScore += 2;
blueScoreCount.setText("" + blueScore);
}
});
};
#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;
}
Here is my XML
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/myLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/purebig" >
<TextView
android:id="#+id/redScore1"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:ems="10"
android:hint="#string/hint"
android:maxLength="2"
android:textIsSelectable="false" />
<ImageButton
android:id="#+id/imageButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:src="#drawable/stop" />
<ImageButton
android:id="#+id/imageButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:src="#drawable/play"/>
<ImageButton
android:id="#+id/imageButton7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/imageButton2"
android:layout_alignParentLeft="true"
android:src="#drawable/kneeonbelly"
android:onClick="addTwo" />
<ImageButton
android:id="#+id/imageButton3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/imageButton7"
android:src="#drawable/backmount"
android:onClick="addFour" />
<ImageButton
android:id="#+id/imageButton4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/imageButton3"
android:layout_alignParentRight="true"
android:src="#drawable/mount"
android:onClick="addFour" />
<ImageButton
android:id="#+id/imageButton8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/imageButton7"
android:layout_centerHorizontal="true"
android:src="#drawable/pass"
android:onClick="addThree" />
<ImageButton
android:id="#+id/imageButton6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignTop="#+id/imageButton8"
android:src="#drawable/takedown"
android:onClick="addTwo" />
<ImageButton
android:id="#+id/imageButton5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/imageButton8"
android:layout_below="#+id/imageButton8"
android:src="#drawable/sweep"
android:onClick="addTwo" />
<ImageButton
android:id="#+id/imageButton10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toLeftOf="#+id/imageButton9"
android:src="#drawable/red" />
<ImageButton
android:id="#+id/imageButton9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toLeftOf="#+id/imageButton1"
android:src="#drawable/blue" />
<TextView
android:id="#+id/blueScore1"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:ems="10"
android:hint="#string/hint"
android:maxLength="2"
android:textIsSelectable="false"/>
<requestFocus />
</RelativeLayout>

I think I possibly understand you. If I do, you can use a flag to see which Button was pressed. So the flow would be like
Red button pressed -> flag = red -> Score Button pressed -> red score += score
In code it would be like
String flag = "";
public void onRedBtnClick(View v)
{
flag = "red";
}
public void scoreBtnClick(View v)
{
if (!flag.equals(""));
{
if ("red".equals(flag))
{
redScore += score;
}
if ("blue".equals(flag))
{
blueScore += score;
}
}
This is obviously done really quick and you will have to adjust your variables to your needs. But if I understand what you want then this would give you the basic logic

We Keep Coding

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

My Application won't start up? - java

Related

problems with activity layout when back button is pressed

making toast for validate edit text when i push a button

unfortunately,myapp has stopped working [duplicate]

How do i exit runnable and switch another activity

How would i make a button to switch where points go in a counter?

Categories

Resources