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So blöd sich dass auch anhört, ich habe absolut keine AHnung warum das nicht funktioniert. Kann mir bitte jemand helfen?
Java Code
package com.example.android.liegetest2;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class LiegeActivity extends Activity {
public int count;
@override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_liege);
//Referenzen
RelativeLayout layout = (RelativeLayout) findViewById(R.id.layout);
final Button countbutton = (Button) findViewById(R.id.countbutton);
//on Click
countbutton.setOnClickListener(new View.OnClickListener() {
@override
public void onClick(View view) {
count++;
countbutton.setText(count);
}
});
}
@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);
}
}
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" androidaddingLeft="@dimen/activity_horizontal_margin"
androidaddingRight="@dimen/activity_horizontal_margin"
androidaddingTop="@dimen/activity_vertical_margin"
androidaddingBottom="@dimen/activity_vertical_margin"
android:id="@+id/layout"
tools:context="com.example.android.liegetest2.LiegeActivity">
<Button
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="0"
android:id="@+id/countbutton"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:textSize="40dp"
/>
</RelativeLayout>
Wieso crasht die App jedes Mal wenn man klickt, eigentlich sollte sie doch den Wert updaten.
Java Code
package com.example.android.liegetest2;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;
public class LiegeActivity extends Activity {
public int count;
@override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_liege);
//Referenzen
RelativeLayout layout = (RelativeLayout) findViewById(R.id.layout);
final Button countbutton = (Button) findViewById(R.id.countbutton);
//on Click
countbutton.setOnClickListener(new View.OnClickListener() {
@override
public void onClick(View view) {
count++;
countbutton.setText(count);
}
});
}
@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);
}
}
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" androidaddingLeft="@dimen/activity_horizontal_margin"
androidaddingRight="@dimen/activity_horizontal_margin"
androidaddingTop="@dimen/activity_vertical_margin"
androidaddingBottom="@dimen/activity_vertical_margin"
android:id="@+id/layout"
tools:context="com.example.android.liegetest2.LiegeActivity">
<Button
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="0"
android:id="@+id/countbutton"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:textSize="40dp"
/>
</RelativeLayout>
Wieso crasht die App jedes Mal wenn man klickt, eigentlich sollte sie doch den Wert updaten.