Ich versuche, onclick zu implementieren, wenn ich auf die erste Schaltfläche klicke, um zu einem neuen Fenster zu gehen, aber wenn ich auf es klicke, bricht Programm ab. Ich habe den Fehler:ButtonClick bricht Programm
W/OpenGLRenderer: Fehler beim Festlegen von EGL_SWAP_BEHAVIOR auf der Oberfläche 0x97154160, error = EGL_BAD_MATCH.
Dies ist Haupt:
package FirstApp.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.content.Intent;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity implements
View.OnClickListener{
TextView text;
Button button;
Button button2;
boolean onClick = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
}
@Override
public void onClick(View view) {
if(view.getId() == R.id.button){
text.setText("Prvi button je kliknut");
}
else if(view.getId() == R.id.button2){
/* Intent i = new Intent(this, DetailActivity.class);
i.putExtra("TEXT", input.getText().toString());
startActivity(i);/*/
text.setText("Drugi button je kliknut");
}
}
}
Und das ist zweite Klasse:
package dvino.myapplication;
import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
/**
* Created by zeroOne on 26.5.2017..
*/
public class Dvino extends Activity{
@Override
protected void onCreate(Bundle saveInstanceState){
super.onCreate(saveInstanceState);
setContentView(R.layout.dvino);
}
}
EDIT-dies ist Fehlermeldung, die ich erhalten speichert, wenn das Programm abstürzt:
<'E/AndroidRuntime: FATAL EXCEPTION: main
Process: dvino.myapplication, PID: 3044
java.lang.IllegalStateException: Could not find method
OnClick(View) in a parent or ancestor Context for android:onClick attribute
defined on view class android.support.v7.widget.AppCompatButton with id
'button'
at
android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.resolveMethod(AppCompatViewInflater.java:327)
at
android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:284)
at android.view.View.performClick(View.java:5610)
at android.view.View$PerformClick.run(View.java:22265)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)'
Haupt XML-Datei:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
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="dvino.myapplication.MainActivity">
<Button
android:text="D'vino"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/button"
android:layout_marginLeft="18dp"
android:layout_alignBottom="@+id/button2"
android:layout_alignParentEnd="true"
android:layout_marginBottom="49dp"
android:onClick="OnClick"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="@drawable/dvino"
android:id="@+id/imageView"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<Button
android:text="D'vino Kitchen"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/button2"
android:layout_marginLeft="18dp"
android:layout_marginBottom="12dp"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:onClick="onClick" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/title_message"
android:id="@+id/text"
android:textAppearance="?android:textAppearanceLarge"
android:layout_below="@+id/imageView"
android:layout_centerHorizontal="true"
android:layout_marginTop="31dp" />
</RelativeLayout>
Java ist Case-Sensitive. 'android: onClick =" OnClick "' ** stimmt nicht überein ** 'public void onClick (Ansicht anzeigen) {' –