本文实例总结了Android开发之Button事件实现与监听方法。分享给大家供大家参考，具体如下：
先来介绍Button事件实现的两种方法
main.xml
<&＃63;xml version="1.0" encoding="utf-8"&＃63;>
strings.xml
<&＃63;xml version="1.0" encoding="utf-8"&＃63;>Hello World, ButtonDemoActivity! ButtonDemo
第一种：
ButtonDemoActivity.java：
package com.android.ButtonDemo.activity;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class ButtonDemoActivity extends Activity {
Button myButton1,myButton2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myButton1=(Button)findViewById(R.id.myButton1);
myButton2=(Button)findViewById(R.id.myButton2);
//使用匿名类注册Button事件
myButton1.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Toast.makeText(ButtonDemoActivity.this, "你点击了按钮1",Toast.LENGTH_LONG).show();
}
});
myButton2.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Toast.makeText(ButtonDemoActivity.this, "你点击了按钮2",Toast.LENGTH_LONG).show();
}
});
}
}
第二种：
ButtonDemoActivity.java：
package com.android.ButtonDemo.activity;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class ButtonDemoActivity extends Activity {
Button myButton1,myButton2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
myButton1=(Button)findViewById(R.id.myButton1);
myButton2=(Button)findViewById(R.id.myButton2);
myButton1.setOnClickListener(new ButtonClick());
myButton2.setOnClickListener(new ButtonClick());
}
//创建一个类，来响应OnClickListener
class ButtonClick implements OnClickListener
{
public void onClick(View v)
{
switch (v.getId()) {
case R.id.myButton1:
Toast.makeText(ButtonDemoActivity.this, "你点击了按钮1",Toast.LENGTH_LONG).show();
break;
case R.id.myButton2:
Toast.makeText(ButtonDemoActivity.this, "你点击了按钮2",Toast.LENGTH_LONG).show();
break;
default:
break;
}
}
}
}
再来说说Button监听方法
android button控件目前主要有如下几种监听方式:
一个button控件对应一个监听:
Button buttontest;
buttOntest= (Button) findViewById(R.id.button1);
buttontest.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.i("TEST", "button onClick");
}
});
多个button对应一个监听1:
start = (Button) findViewById(R.id.button1);
stop = (Button) findViewById(R.id.button2);
start.setOnClickListener(mylistener );
stop.setOnClickListener(mylistener );
View.OnClickListener mylistener = new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
Log.d(TAG, "Start to recorder video\n");
start_recorde();
break;
case R.id.button2:
Log.d(TAG, "Stop to recorder video\n");
stop_recorde();
break;
default:
break;
}
}
};
多个button对应一个监听2:
public class MainActivity extends Activity implements View.OnClickListener{
//界面元素
private Button start;
private Button stop;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
start = (Button) findViewById(R.id.button1);
stop = (Button) findViewById(R.id.button2);
start.setOnClickListener(this);
stop.setOnClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
Log.d(TAG, "Start to recorder video\n");
break;
case R.id.button2:
Log.d(TAG, "Stop to recorder video\n");
break;
default:
break;
}
}
}
xml中绑定监听:
对应java代码如下:
Button btn = (Button) findViewById(R.id.button1);
public void mybuttonlistener(View target){
//do something5
}
从个人角度来讲，不推荐使用第四种实现方式。
希望本文所述对大家Android程序设计有所帮助。
京公网安备 11010802041100号 | 京ICP备19059560号-4 | PHP1.CN 第一PHP社区 版权所有 