Android 内部类实现点击事件举例

FirstActivity.java

package com.example.activitytest;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.Toast;
public class FirstActivity extends Activity{

@Override
protected void onCreate(Bundle saveInstanceState){
super.onCreate(saveInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.first_layout);
Button bt1 =(Button)findViewById(R.id.button1);

bt1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(FirstActivity.this, "You clicked Buttom 1", Toast.LENGTH_SHORT).show();
}
});
}
}

first_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >


    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Button 1" />


</LinearLayout>

Android Manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.activitytest"
    android:versionCode="1"
    android:versionName="1.0" >


    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="21" />


    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity 
            android:name=".FirstActivity"
            android:label="This is FirstActivity">           
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>


</manifest>

效果展示：