Android处理UI控件事件

布局文件

MainActivity.java

package com.android.basicapp;
import android.app.Activity;
import android.os.Bundle;
import android.graphics.Color;
import android.widget.Button;
import android.widget.TextView;
import android.view.View;
import android.view.View.OnClickListener;
import android.util.Log;
public class TestEvent1 extends Activity {
private static final String TAG = "TestEvent1";
public TestEvent1() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.testevent);
final TextView Text = (TextView) findViewById(R.id.text1); // 获得句柄
final Button Button1 = (Button) findViewById(R.id.button1);
final Button Button2 = (Button) findViewById(R.id.button2);
Button1.setOnClickListener(new OnClickListener() { // 实现行为功能
public void onClick(View v) {
Text.setBackgroundColor(Color.RED);
}
});
Button2.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Text.setBackgroundColor(Color.GREEN);
}
});
}
}