Android loading progress bar

Package xiaohang. zhimeng;

Import android. app. Activity;
Import android. OS. Bundle;
Import android. OS. Handler;
Import android. OS. Message;
Import android. view. View;
Import android. view. Window;
Import android. widget. Button;
Import android. widget. ProgressBar;

Public class Activity01 extends Activity {

// Declare the ProgressBar object
Private ProgressBar xh_ProgressBar;
Private ProgressBar xh_ProgressBar2;
Private Button xh_Button;
Protected static final int GUI_STOP_NOTIFIER = 0x108;
Protected static final int GUI_THREADING_NOTIFIER = 0x109;
Public int intCounter = 0;

@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
// Set the window mode because the progress bar needs to be displayed in the title bar
// RequestWindowFeature (Window. FEATURE_PROGRESS );
// SetProgressBarVisibility (true );
SetContentView (R. layout. main );

// Obtain the ssssbar
Xh_ProgressBar = (ProgressBar) findViewById (R. id. ProgressBar01 );
Xh_ProgressBar2 = (ProgressBar) findViewById (R. id. ProgressBar02 );
Xh_Button = (Button) findViewById (R. id. Button01 );

// Set the progress bar to the uncertain Mode
Xh_ProgressBar.setIndeterminate (false );
Xh_ProgressBar2.setIndeterminate (false );

// Start execution when the button is pressed
Xh_Button.setOnClickListener (new Button. OnClickListener (){
@ Override
Public void onClick (View v ){
// Set ProgressBar to visible
Xh_ProgressBar.setVisibility (View. VISIBLE );
Xh_ProgressBar2.setVisibility (View. VISIBLE );
// Set the maximum value of ProgressBar
Xh_ProgressBar.setMax (100 );
// Set the current value of ProgressBar
Xh_ProgressBar.setProgress (0 );
Xh_ProgressBar2.setProgress (0 );

// Change the value of ProgressBar through a thread
New Thread (new Runnable (){
@ Override
Public void run (){
For (int I = 0; I <10; I ++ ){
Try {
// Set the progress Value
IntCounter = (I + 1) * 20;
// Sleep for 1000 milliseconds
Thread. sleep (1000 );

If (I = 4 ){
Message m = new Message ();

M. what = Activity01.GUI _ STOP_NOTIFIER;
Activity01.this. myMessageHandler
. SendMessage (m );
Break;
} Else {
Message m = new Message ();
M. what = Activity01.GUI _ THREADING_NOTIFIER;
Activity01.this. myMessageHandler
. SendMessage (m );
}

} Catch (Exception e ){
E. printStackTrace ();
}
}
}

}). Start ();
}

});
}

Handler myMessageHandler = new Handler (){
@ Override
Public void handleMessage (Message msg ){
Switch (msg. what ){
// ProgressBar is already the maximum value
Case Activity01.GUI _ STOP_NOTIFIER:
Xh_ProgressBar.setVisibility (View. GONE );
Xh_ProgressBar2.setVisibility (View. GONE );
Thread. currentThread (). interrupted ();
Break;
Case Activity01.GUI _ THREADING_NOTIFIER:
If (! Thread. currentThread (). isInterrupted ()){
// Change the current value of ProgressBar
Xh_ProgressBar.setProgress (intCounter );
Xh_ProgressBar2.setProgress (intCounter );

// Set a progress bar value in the title bar.
SetProgress (intCounter * 100 );
}
Break;
}
Super. handleMessage (msg );
}
};
}

XML file
<? Xml version = "1.0" encoding = "UTF-8"?>
<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"
Android: orientation = "vertical"
Android: layout_width = "fill_parent"
Android: layout_height = "fill_parent"
>
<TextView
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"
Android: text = "@ string/hello"
/>

<ProgressBar
Android: id = "@ + id/ProgressBar01"
Style = "? Android: attr/progressBarStyleHorizontal"
Android: layout_width = "200dp"
Android: layout_height = "wrap_content"
Android: visibility = "gone"
/>

<ProgressBar
Android: id = "@ + id/ProgressBar02"
Style = "? Android: attr/progressBarStyleLarge"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: max = "100"
Android: progress = "50"
Android: secondaryProgress = "70"
Android: visibility = "gone"
/>

<Button
Android: id = "@ + id/Button01"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: text = ""/>

</LinearLayout>