android ProgressBar用法

package com.yunshouhu.interviewdemo;import android.annotation.SuppressLint;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.util.Log;import android.widget.ProgressBar;import android.widget.TextView;public class MainActivity extends Activity {protected static final String TAG = "MainActivity";private ProgressBar progressBar = null;private TextView nameTextView = null;@SuppressLint("HandlerLeak")private Handler hander = new Handler() {public void handleMessage(android.os.Message msg) {switch (msg.what) {case 100:{int currentProgress =(Integer) msg.obj;nameTextView.setText(currentProgress+ "");Log.i(TAG, "handleMessage finish currentProgress="+currentProgress);}break;default:break;}};};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);progressBar = (ProgressBar) findViewById(R.id.progressBar);nameTextView = (TextView) findViewById(R.id.name);new Thread(new Runnable() {@Overridepublic void run() {try {//1分钟走完  1s走一次。 60s走完int progressBarMax = progressBar.getMax();Log.i(TAG, "progressBarMax="+progressBarMax);int stepProgress = progressBarMax / 60;while (progressBarMax != progressBar.getProgress()) {int currentProgress = progressBar.getProgress();int nextProgress=currentProgress + stepProgress;progressBar.setProgress(nextProgress);Message msg=hander.obtainMessage();msg.what=100;msg.obj=nextProgress;hander.sendMessage(msg);Log.i(TAG, "send finish currentProgress="+nextProgress);Thread.sleep(1000);}} catch (InterruptedException e) {e.printStackTrace();}}}).start();}}
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