LongClickButton.java
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package com.ectrip.trips.view;
import java.lang.ref.WeakReference;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Button;
/**
* 长按连续响应的Button
* @author jigo
*/
public class LongClickButton extends Button {
/**
* 长按连续响应的监听,长按时将会多次调用该接口中的方法直到长按结束
*/
private LongClickRepeatListener repeatListener;
/**
* 间隔时间(ms)
*/
private long intervalTime;
private MyHandler handler;
public LongClickButton(Context context) {
super(context);
init();
}
public LongClickButton(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public LongClickButton(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init();
}
/**
* 初始化监听
*/
private void init() {
handler = new MyHandler(this);
setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
new Thread(new LongClickThread()).start();
return true;
}
});
}
/**
* 长按时,该线程将会启动
*/
private class LongClickThread implements Runnable {
private int num;
@Override
public void run() {
while (LongClickButton.this.isPressed()) {
num++;
if (num % 5 == 0) {
handler.sendEmptyMessage(1);
}
SystemClock.sleep(intervalTime / 5);
}
}
}
/**
* 通过handler,使监听的事件响应在主线程中进行
*/
private static class MyHandler extends Handler {
private WeakReference ref;
MyHandler(LongClickButton button) {
ref = new WeakReference(button);
}
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
LongClickButton button = (LongClickButton) ref.get();
if (button != null && button.repeatListener != null) {
button.repeatListener.repeatAction();
}
}
}
/**
* 设置长按连续响应的监听和间隔时间,长按时将会多次调用该接口中的方法直到长按结束
*
* @param listener 监听
* @param intervalTime 间隔时间(ms)
*/
public void setLongClickRepeatListener(LongClickRepeatListener listener, long intervalTime) {
this.repeatListener = listener;
this.intervalTime = intervalTime;
}
/**
* 设置长按连续响应的监听(使用默认间隔时间100ms),长按时将会多次调用该接口中的方法直到长按结束
*
* @param listener 监听
*/
public void setLongClickRepeatListener(LongClickRepeatListener listener) {
setLongClickRepeatListener(listener, 100);
}
public interface LongClickRepeatListener {
void repeatAction();
}
}