Android开发之ProgressDialog进度对话框用法示例

public class MainActivity extends Activity {  final static int MAX_PROGRESS = 100;  //虚拟 填充长度为100的数组  private int[] data = new int[50];  //记录进度对话框完成百分比  int progressStatus = 0;  int hasDta = 0;  ProgressDialog progressDialog01,progressDialog02;  private Button buttonDate;  private Button buttonTime;  //创建一个负责更新进度的Handler  Handler mHandler = new Handler(){    @Override    public void handleMessage(Message msg) {      //表明消息是本程序发送的      if (msg.what == 0x111){        progressDialog02.setProgress(progressStatus);      }    }  };  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    buttonDate = (Button) findViewById(R.id.dataBn);    buttonTime = (Button) findViewById(R.id.timeBn);    iniClick();//Binding the listeners for you program  }  public void showSpinner(View source){    //用静态方法显示环形进度条    ProgressDialog.show(this,"任务执行中","热内执行中 请等待...",false,true);  }  public void showIndeterminate(View source){    progressDialog01 = new ProgressDialog(MainActivity.this);    //设置对话框标题    progressDialog01.setTitle("任务正在执行中");    //设置对话框执行内容    progressDialog01.setMessage("任务正在执行中敬请等待~~~");    //设置对话框“取消” 按钮关闭    progressDialog01.setCancelable(true);    //设置对话框进度条风格    progressDialog01.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);    //设置进度条是否显示进度    progressDialog01.setIndeterminate(true);    progressDialog01.show();  }  public void showProgress(View source){    //将进度条完成重设为0    progressStatus = 0;    //重新开始填充数组    hasDta = 0;    progressDialog02 = new ProgressDialog(MainActivity.this);    progressDialog02.setMax(MAX_PROGRESS);    //设置对话框标题    progressDialog02.setTitle("任务正在执行中");    //设置对话框执行内容    progressDialog02.setMessage("任务正在执行中敬请等待~~~");    //设置对话框“取消” 按钮关闭    progressDialog02.setCancelable(false);    //设置对话框进度条风格    progressDialog02.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);    //设置进度条是否显示进度    progressDialog02.setIndeterminate(false);    progressDialog02.show();    new Thread(){//模拟耗时操作      @Override      public void run() {        while (progressStatus < MAX_PROGRESS){          //bar1获取完成工作的百分比          progressStatus += (int) (Math.random()*15);          try{            Thread.sleep(1000);          }catch (InterruptedException e){            e.printStackTrace();          }          //更新ProgressBar          mHandler.sendEmptyMessage(0x111);        }        //任务完成进度条关闭        progressDialog02.dismiss();      }    }.start();  }  public void iniClick(){    //set listener for your Date button    buttonDate.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        showIndeterminate(MainActivity.this.getWindow().getDecorView());      }    });    //set listener for your Time button    buttonTime.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        showProgress(MainActivity.this.getWindow().getDecorView());      }    });  }}

<?xml version="1.0" encoding="utf-8" ?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/idtatabHost"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:orientation="horizontal"  android:layout_weight="1">  <Button    android:id="@+id/dataBn"    android:text="一般进度条"    android:layout_width="0dp"    android:layout_weight="1"    android:layout_height="wrap_content" />  <Button    android:id="@+id/timeBn"    android:text="带耗时进度条"    android:layout_width="0dp"    android:layout_weight="1"    android:layout_height="wrap_content" /></LinearLayout>