2019獨角獸企業重金招聘Python工程師標準>>>

package android.huada;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

public class ProgressDialogActivity extends Activity {
??? /** Called when the activity is first created. */
?
?ProgressDialog progressDialog;
??? @Override
??? public void onCreate(Bundle savedInstanceState) {
??????? super.onCreate(savedInstanceState);
??????? setContentView(R.layout.main);
???????
??????? progress("下載數據中", "請稍等......");
?
?????
?????
??? }
???
??? public void progress(String title,String message){
??? ?progressDialog = new ProgressDialog(this);
??? ?updateThread thread= new updateThread();
??? ?progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
??? ?progressDialog.setMessage(message);
??? ?progressDialog.setTitle(title);
??? ?progressDialog.setProgress(0);
??? ?progressDialog.setMax(100);
??? ?progressDialog.show();
??? ?thread.start();

??????? }
???
??? Handler handler = new Handler(){

??@Override
??public void handleMessage(Message msg) {
???// TODO Auto-generated method stub
???if(msg.what>=100){
????progressDialog.cancel();
?????? }
????progressDialog.setProgress(msg.what);
???super.handleMessage(msg);
??}
??? ?
??? };
???
??? class updateThread extends Thread{
??? ?public void run(){
??? ??handler.sendEmptyMessage(0);
??? ??try {
????updateThread.sleep(1000);
????handler.sendEmptyMessage(10);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(20);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(30);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(40);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(50);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(60);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(70);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(80);
???? ??updateThread.sleep(1000);
???? ??handler.sendEmptyMessage(100);
???? ??updateThread.sleep(1000);
???? ??
???} catch (InterruptedException e) {
????// TODO Auto-generated catch block
????e.printStackTrace();
???}
??? ??
??? ?}
??? };
}

3.配置文件main.xml代碼如下 4.此項目是通過線程及時修改UI，運行效果圖如下

轉載于:https://my.oschina.net/u/1463230/blog/233029

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