我想實現onclick當我點擊第一個按鈕去新窗口,但當我點擊它打破程序。我有錯誤:ButtonClick正在打破方案
W/OpenGLRenderer:無法在曲面0x97154160上設置EGL_SWAP_BEHAVIOR,錯誤= EGL_BAD_MATCH。
這是主要:
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");
}
}
}
這是第二類:
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-這是我recive錯誤消息,當程序崩潰:
<'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)'
主xml文件:
<?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是區分大小寫的。 'android:onClick =「OnClick」'**不匹配**'public void onClick(View view){' –