Android 自定义 Toast 显示时间

package com.wm.realname.util;import android.content.Context;import android.os.Handler;import android.view.View;import android.widget.Toast;/** * Toast自定义显示时间 * 使用方法 * 1.先初始化类 MyToast myToast = new MyToast(this); * 2.显示消息 myToast.setText("要显示的内容"); //设置要显示的内容 *  myToast.show(8000); //传入消息显示时间，单位毫秒，最少2000毫秒，并且只能是2000的倍数。 *  传入0时会一直显示，只有调用 myToast.cancel();时才会取消。 * 3.取消消息显示 myToast.cancel(); * */public class ToastUtil { private Context mContext = null; private Toast mToast = null; private Handler mHandler = null; private int duration = 0; private int currDuration = 0; private final int DEFAULT = 2000; private Runnable mToastThread = new Runnable() {  public void run() {   mToast.show();   mHandler.postDelayed(mToastThread, DEFAULT); // 每隔2秒显示一次   if (duration != 0) {    if (currDuration <= duration) {     currDuration += DEFAULT;    } else {     cancel();    }   }  } } public ToastUtil(Context context) {  mContext = context;  currDuration = DEFAULT;  mHandler = new Handler(mContext.getMainLooper());  mToast = Toast.makeText(mContext, "", Toast.LENGTH_LONG); } public void setText(String text) {  mToast.setText(text); } public void show(int duration) {  this.duration = duration;  mHandler.post(mToastThread); } public void setGravity(int gravity, int xOffset, int yOffset) {  mToast.setGravity(gravity, xOffset, yOffset); } public void setDuration(int duration) {  mToast.setDuration(duration); } public void setView(View view) {  mToast.setView(view); } public void cancel( ) {  mHandler.removeCallbacks(mToastThread);// 先把显示线程删除  mToast.cancel();// 把最后一个线程的显示效果cancel掉，就一了百了了  currDuration = DEFAULT; }}