I have some Java code that I want to be triggered everytime any of the buttons in my activity is pressed. I set each button to have an attribute of android:onClick="onClick". However, I get several error codes and am unsure about what to do with them. I get that "variable onClick is never used", "cannot resolve symbol view", and "cannot assign a value to final variable q". What can I do about each one? Many thanks!!
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.content.res.Resources;
import android.view.View;
import android.widget.TextView;
import android.widget.Button;
import java.lang.String;
import java.util.Random;
public class MainActivity extends AppCompatActivity {
private static final Random r_generator = new Random();
String textViewString;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Resources res = getResources();
final TextView tv = (TextView) findViewById(R.id.color_text);
final String[] myString = res.getStringArray(R.array.englishColorArray);
final String q = myString[r_generator.nextInt(myString.length)];
tv.setText(q);
textViewString = tv.getText().toString();
#Override
public void onClick(View view) {
//This casts your view to be a button so you can access its features as a button
textViewString = tv.getText().toString();
Button btn = (Button) view;
if(!btn.getText().equals(textViewString)){
q = myString[r_generator.nextInt(myString.length)];
tv.setText(q);
//Perform action to notify user that they pressed the wrong button
//Do not return here. This is what caused the program to lock up
//Maybe add a TextView that says correct/incorrect and can change that when the user is correct or incorrect
}
//Gets a random color from my string array and sets it to the TextView
q = myString[r_generator.nextInt(myString.length)];
tv.setText(q);
}
And xml code...
<?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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:theme="#android:style/Theme.Holo.Light"
tools:context="com.example.cedric.learnthecolors.MainActivity"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/color_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="68sp"
android:gravity="center"
android:textAllCaps="true"/>
</LinearLayout>
<LinearLayout android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<Button
android:id="#+id/green_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Green"
android:textSize="0sp"
android:background="#drawable/green_button"/>
<Button
android:id="#+id/blue_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Blue"
android:textSize="0sp"
android:background="#drawable/blue_button"/>
<Button
android:id="#+id/red_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Red"
android:textSize="0sp"
android:background="#drawable/the_red_button"/>
</LinearLayout>
<LinearLayout android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<Button
android:id="#+id/yellow_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Yellow"
android:textSize="0sp"
android:background="#drawable/yellow_button"/>
<Button
android:id="#+id/white_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/White"
android:textSize="0sp"
android:background="#drawable/white_button"/>
<Button
android:id="#+id/orange_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Orange"
android:textSize="0sp"
android:background="#drawable/orange_button"/>
</LinearLayout>
<LinearLayout android:id="#+id/linearLayout3"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<Button
android:id="#+id/brown_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Brown"
android:textSize="0sp"
android:background="#drawable/brown_button"/>
<Button
android:id="#+id/pink_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Pink"
android:textSize="0sp"
android:background="#drawable/pink_button"/>
<Button
android:id="#+id/purple_button"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:onClick="onClick"
android:text="#string/Purple"
android:textSize="0sp"
android:background="#drawable/purple_button"/>
</LinearLayout>
</LinearLayout>
This is because you integrated the onClick inside your onCreate (or you simply forgot to make the closing bracket "}" ), therefore the buttons can't reach the method. Insert the missing bracket, like this:
public class MainActivity extends AppCompatActivity {
private static final Random r_generator = new Random();
String textViewString;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Resources res = getResources();
final TextView tv = (TextView) findViewById(R.id.color_text);
final String[] myString = res.getStringArray(R.array.englishColorArray);
final String q = myString[r_generator.nextInt(myString.length)];
tv.setText(q);
textViewString = tv.getText().toString();
} // this bracket here was missing
#Override
public void onClick(View view) {
//This casts your view to be a button so you can access its features as a button
textViewString = tv.getText().toString();
Button btn = (Button) view;
if(!btn.getText().equals(textViewString)){
q = myString[r_generator.nextInt(myString.length)];
tv.setText(q);
//Perform action to notify user that they pressed the wrong button
//Do not return here. This is what caused the program to lock up
//Maybe add a TextView that says correct/incorrect and can change that when the user is correct or incorrect
}
//Gets a random color from my string array and sets it to the TextView
q = myString[r_generator.nextInt(myString.length)];
tv.setText(q);
}
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
//some code
#override
onCreate(bundle SavedState){
//some code
button1.setOnClickListener(this);
button2.setOnclickListener(this);
}
//your click listener
#override
onClick(View view){
int id = view.getID();
}
}
In short, use click listener interface
Your code is messed up.
Your activity should be declared as implementing View.OnclickListener interface.
Your onClick
function should be in the Activity class, not within the onCreate
function.
You should declare q as a member variable of your class, and should not be marked as final.
Related
This part of the code is to add 3 EditText lines while the button secbutt is clicked. While all three EditText lines are on the screen, the button should disappear.
Now I do not understand why after entering onClick method and starting plusTextField method, it just adds EditText lines infinitely. I want it to execute once and to return to the beginning of summonButton method. What should I do?
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
public class MainActivity extends AppCompatActivity {
int numberOfLinesLeft = 3;
Button secondaryActivityAddButton;
LinearLayout llForSecondaryButton;
LinearLayout llForSecondaryEditText;
EditText et;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void summonButton(View view){
llForSecondaryButton = findViewById(R.id.secondaryButton);
secondaryActivityAddButton = new Button(this);
secondaryActivityAddButton.setText("" + numberOfLinesLeft);
llForSecondaryButton.addView(secondaryActivityAddButton);
secondaryActivityAddButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
plusTextField();
}
});
}
public void plusTextField() {
llForSecondaryEditText = findViewById(R.id.linearLayout1);
// add edittext
et = new EditText(this);
et.setText("text" + numberOfLinesLeft);
llForSecondaryEditText.addView(et);
numberOfLinesLeft--;
}
}
ActivityMain.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"
tools:context="com.egrishin.task_a_day.MainActivity">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_weight="1">
<TextView
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="#string/main_task_title"
android:gravity="center_horizontal"
/>
<EditText
android:id="#+id/main_task_line_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="What is 1 main thing to be done today?"
android:inputType="textMultiLine"
android:layout_margin="16dp"
/>
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout0"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:layout_weight="1"
android:orientation="vertical"
>
<TextView
android:id="#+id/textline2"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="#string/secondary_task_title"
android:gravity="center_horizontal"
android:onClick="summonButton"
/>
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_margin="16dp"
>
</LinearLayout>
<LinearLayout
android:id="#+id/secondaryButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_weight="1">
<TextView android:layout_height="wrap_content"
android:layout_width="match_parent"
android:text="#string/other_task_title"
android:gravity="center_horizontal"/>
</LinearLayout>
</LinearLayout>
You miss logic of setting the button invisible when counter riches 0 :
public void onClick(View view) {
plusTextField();
if(numberOfLinesLeft == 0) {
view.setVisibility(View.GONE);
}
}
Here is the result, there is no button after adding 3 Edit Texts:
I have two layouts. I want to keep one layout gone when the activity is loaded and it should be visible onClick of another layout. so I have added this code OnClickListener of the layout.
additionalContactFrom.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(linearLayoutFrom.getVisibility() == View.GONE){
linearLayoutFrom.setVisibility(View.VISIBLE);
}else{
linearLayoutFrom.setVisibility(View.GONE);
}
}
});
And have set visibility of the layout gone in xml file..
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/LinearLayoutAdditionalContactFrom">
<ImageView
android:layout_width="25dp"
android:layout_height="25dp"
android:id="#+id/imageView13"
android:layout_marginLeft="20dp"
android:background="#drawable/ic_person_black_48dp"
android:layout_marginTop="05dp"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/editText"
android:layout_marginRight="10dp"
android:drawableRight="#drawable/ic_expand_more_black_24dp"
android:text="Additional contact (optional)"
android:cursorVisible="false"
/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="60dp"
android:layout_marginRight="50dp"
android:layout_gravity="center"
android:visibility="gone"
android:id="#+id/LinearLayoutFrom">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/editText2"
android:layout_weight="1"
android:hint="Name"
android:layout_gravity="center"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/editText3"
android:layout_weight="1"
android:hint="Phone"
android:layout_gravity="center"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="OR"
android:id="#+id/textView19"
android:layout_gravity="center" />
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="#+id/textView13"
android:layout_marginLeft="48dp"
android:hint="Input if you're not receiver" />
</LinearLayout>
Unable to understand whats going wrong.. The listener is not getting called at all.. Please help..
Your problem is that your EditText is capturing the click event when you click on it. If you click somewhere else in the LinearLayout it should work.
You can replace the EditText with a TextView if you don't need the user to edit the content.
Change
linearLayoutFrom.setVisibility(View.VISIBLE);
To
findViewById(R.id.YOURLAYOUTID).setVisibility(View.VISIBLE);
I think you can't access to local vars in sub methods
It Seems That Layout Visibility is Already set to GONE, so Onlick listener is not working on hidden View and it should not work too.
INVISBLE means you are trying to add a listener to a view which is not there. You can add the listener to a visible view only.
WORKAROUND
1) Try to make a dummy view which is visible but having the same color as background.
2) Try to set the listener for parent and check the position (whether the position does
belongs to INVISIBLE view).
Please try to set the onClickListener to the EditText and to the ImageView and no to the LinearLayout
The problem is that the Handler of the EditText is most important that the LinearLayout handler.
Almost you can try to make a break point to the OnClick and see what is happend
This is an example to explain you how to do that:
in MainActivity Class:
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.Toast;
public class MainActivity extends Activity {
private LinearLayout linearLayoutFrom;
private LinearLayout additionalContactFrom;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
additionalContactFrom = (LinearLayout) findViewById(R.id.LinearLayoutAdditionalContactFrom);
linearLayoutFrom = (LinearLayout) findViewById(R.id.LinearLayoutFrom);
linearLayoutFrom.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(),
"linearLayoutFrom clicked!!!", Toast.LENGTH_SHORT)
.show();
if (additionalContactFrom.getVisibility() == View.GONE) {
additionalContactFrom.setVisibility(View.VISIBLE);
} else {
additionalContactFrom.setVisibility(View.GONE);
}
}
});
additionalContactFrom.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(),
"additionalContactFrom clicked!!!", Toast.LENGTH_SHORT)
.show();
if (linearLayoutFrom.getVisibility() == View.GONE) {
linearLayoutFrom.setVisibility(View.VISIBLE);
} else {
linearLayoutFrom.setVisibility(View.GONE);
}
}
});
}
}
in xml file:
<FrameLayout 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" >
<LinearLayout
android:id="#+id/LinearLayoutAdditionalContactFrom"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/holo_blue_dark"
android:orientation="horizontal" >
</LinearLayout>
<LinearLayout
android:id="#+id/LinearLayoutFrom"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_marginLeft="60dp"
android:layout_marginRight="50dp"
android:background="#android:color/holo_green_light"
android:orientation="vertical"
android:visibility="gone" >
</LinearLayout>
<TextView
android:id="#+id/textView13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="48dp"
android:hint="Input if you're not receiver"
android:textAppearance="?android:attr/textAppearanceSmall" />
</FrameLayout>
This is very important that when you want add some view (for example
add a linearlayout to another linerlayout). you should use framelayout or
relativelayout(do not use linearlayout) for do that.
I have a problem with my first application,this is also my first question,i have 2 activity and 2 layout
this is the MainActivit.java
public class MainActivity extends TabActivity {
TabHost tabHost;
public static int meth;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
LoadAllVar();
UpdateHud(meth);
TabSwitcher();
}
public static int LoadAllVar(){
//Load all var from files (not added for now)
meth = 200;
return meth;
}
private void UpdateHud(int meth){
String methstring = Integer.toString(meth);
TextView textSell = (TextView)findViewById(R.id.textMethCount);
textSell.setText(methstring);
}
public void TabSwitcher() {
tabHost = getTabHost();
TabHost.TabSpec tab1spec = tabHost.newTabSpec("Tab1");
tab1spec.setIndicator("Cook");
Intent firstintent = new Intent(this, CookTab.class);
tab1spec.setContent(firstintent);
tabHost.addTab(tab1spec);
}
}
and this is the second Activity
public class CookTab extends Activity {
public static int meth;
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.cooktab);
LoadVarFromCook();
CheckCookClick();
}
public void LoadVarFromCook (){
meth = LoadAllVar();
String methstring = Integer.toString(meth);
Toast.makeText(getApplicationContext(),methstring,Toast.LENGTH_SHORT).show();
}
public void CheckCookClick (){
Button buttoncook = (Button) findViewById(R.id.buttonCook);
buttoncook.setOnClickListener(new Button.OnClickListener(){
public void onClick(View v){
meth = meth + 1;
Toast.makeText(getApplicationContext() , "+1" , Toast.LENGTH_SHORT).show();
//HERE I NEED TO UPDATE THE VALUE OF METH INSIDE THE ACTIVITY_MAIN.XML
}
});
}
}
this is the MainActivity layout
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TabHost
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:id="#android:id/tabhost">
<TabWidget
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#android:id/tabs"></TabWidget>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#android:id/tabcontent"></FrameLayout>
</TabHost>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="100dp"
android:layout_alignParentBottom="true"
android:id="#+id/layoutHUD">
<TextView
android:layout_width="50dp"
android:layout_height="40dp"
android:id="#+id/textMethCount"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="28dp"
android:layout_marginStart="28dp" />
</RelativeLayout>
</RelativeLayout>
and this is the second tab layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="100dp"
android:layout_height="60dp"
android:id="#+id/textMeth"
android:layout_marginTop="250dp"
android:layout_marginLeft="145dp"
android:text="Meth"
android:gravity="center"
android:textSize="29dp"
android:textStyle="bold"/>
<Button
android:layout_width="100dp"
android:layout_height="60dp"
android:id="#+id/buttonCook"
android:layout_below="#+id/textMeth"
android:layout_alignLeft="#+id/textMeth"
android:layout_alignStart="#+id/textMeth"
android:text="Cook"/>
</RelativeLayout>
I need to change the text inside a TextView located inside the activity_main.xml when i press a button inside the cooktab.xml how can i do that? findViewById() dosen't work
P.S. for now i add only one tab ,i will add more tab but for now i think about the first one
Try using EventBus it allows you to call functions in other parts of your app. Alternatively use a standard java interface link
I resolve the problem following this tutorial http://mrbool.com/how-to-create-an-activity-android-with-a-tabhost-view/27990
I am realitavely new to Java coding and am trying to use a button press (in an Android App) to update a text view. The code I am currently using is causing my app to crash whenever I try to press the button.
Here is my XML
<LinearLayout>
<TextView
android:id="#+id/myTextView_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="calculateNewNumber"
android:text="Calculate New Number" />
</LinearLayout>
And Here is my Java
package com.example.android.myapp;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
int startNumber = 0;
public void calculateNewNumber(View view) {
startNumber = startNumber + 1;
display(startNumber);
}
private void display(int number) {
TextView myTextView = (TextView) findViewById(
R.id.myTextView_text_view);
myTextView.setText("" + number);
}
}
Thanks for any help you can give.
The code itself works fine so the problem must be with your XML, assuming you have provided it in full here.
Using this XML, your MainActivity code works fine for me.
<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">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<TextView
android:id="#+id/myTextView_text_view"
android:layout_width="60dp"
android:layout_height="wrap_content"
android:text="0" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="calculateNewNumber"
android:text="Calculate New Number" />
</LinearLayout>
</RelativeLayout>
I am making a game that requires multiple views within an Activity, and i decided to use Viewflipper to do.
The thing is. I need to have 3 views in in the viewflipper, and the LAST view will transfer back to the first one.
My problem is that the buttons are acting weird, and they are either not going to the next, or skipping the third view. I tried to put vf.setDisplayedChild(R.Id.gamescreen1); at the last view but then the whole thing breaks down.
Thanks for all answers in advance, i have been stuck with this problem for DAYS! and yes, i know that i am a noob :(
[SOURCECODE]
public class GameActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_game);
final ViewFlipper vf = (ViewFlipper) findViewById(R.id.ViewFlipper01);
//SCREEN 1
Button btnSTART = (Button) findViewById(R.id.btnSTART);
//SCREEN 2
Button btnALT1 = (Button) findViewById(R.id.btnALT1);
Button btnALT2 = (Button) findViewById(R.id.btnALT1);
//SCREEN 3
Button btnALT3 = (Button) findViewById(R.id.btnALT1);
Button btnALT4 = (Button) findViewById(R.id.btnALT1);
//screen 1
btnSTART.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
//screen 2 // Either button will go to view 3
btnALT1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
btnALT2.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
//screen 3 // Either button will go back to view 1
btnALT3.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
btnALT4.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
vf.showNext();
}
});
}
}
[XML]
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="#+id/gamescreen1" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:layout_height="435dp" android:gravity="top">
<ListView android:layout_width="fill_parent" android:id="#+id/list1" android:layout_height="184dp" android:layout_weight="0.53"></ListView>
</LinearLayout>
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:gravity="bottom|center" android:layout_height="wrap_content">
<Button android:layout_height="wrap_content" android:id="#+id/btnSTART" android:layout_width="200dp" android:text="#string/btnstart"></Button>
</LinearLayout>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="#+id/gamescreen2" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:weightSum="1" android:gravity="top" android:layout_height="326dp">
<ListView android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="#+id/list2"></ListView>
</LinearLayout>
<LinearLayout android:orientation="vertical" android:gravity="bottom|center" android:layout_width="match_parent" android:layout_height="match_parent">
<Button android:text="alt1" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT1"></Button>
<Button android:text="alt2" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT2"></Button>
</LinearLayout>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="#+id/gamescreen3" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:weightSum="1" android:gravity="top" android:layout_height="326dp">
</LinearLayout>
<LinearLayout android:orientation="vertical" android:gravity="bottom|center" android:layout_width="match_parent" android:layout_height="match_parent">
<Button android:text="alt3" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT3"></Button>
<Button android:text="alt4" android:layout_width="200dp" android:layout_height="wrap_content" android:id="#+id/btnALT4"></Button>
</LinearLayout>
</LinearLayout>
try this
flipper.setDisplayedChild(1);
.
.to
.
flipper.setDisplayedChild(3);
if(flipper.getCurrentView() == 3)
{
flipper.setDisplayedChild(1);
}
setDisplayChild takes an integer parameter that is the zero based index of the child to display NOT the id of the child to display. A bit confusing I know.