【控件篇】ProgressBar+ProgressDialog使用案例

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context=".MainActivity" >

<ProgressBar
android:id="@+id/main_progressbar"
android:layout_width="fill_parent"
android:layout_height="15dp"
android:layout_margin="15dp"
style="?android:attr/progressBarStyleHorizontal"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="进度对话框"
android:onClick="ShowProgressDialog"
/>

</RelativeLayout>

public class MainActivity extends Activity{

private ProgressBar progress_bar;
private ProgressDialog progress_dialog;

private boolean stopThread = false;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

initView();
}

public void initView(){
progress_bar = (ProgressBar) findViewById(R.id.main_progressbar);
progress_bar.setMax(100);
progress_bar.setProgress(50);

progress_dialog = new ProgressDialog(this);
progress_dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progress_dialog.setMax(100);
progress_dialog.setTitle("好友列表");
progress_dialog.setMessage("正在载入中。。。");
progress_dialog.setButton("完成", new FinishProgressDialogListener());

}

public void ShowProgressDialog(View view){
progress_dialog.show();
progress_dialog.setProgress(0);
stopThread = false;
Thread loadDataThread = new Thread(new LoadDataThread());
loadDataThread.start();
}

public class FinishProgressDialogListener implements OnClickListener{

@Override
public void onClick(DialogInterface arg0, int arg1) {
stopThread = true;
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
progress_dialog.cancel();
}

}

public class LoadDataThread implements Runnable{

Message msg = new Message();

@Override
public void run() {
for(int i=1; i<=100&&!stopThread; i++){
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
progress_dialog.setProgress(i);
}
}
}
}