ProgressBar & Style

1style="?android:attr/progressBarStyleHorizontal"

1<ProgressBar
2android:id="@+id/pb_progressbar_standard"
3android:layout_width="wrap_content"
4android:layout_height="wrap_content"

1package de.dev;
2
3import android.app.Activity;
4import android.content.Intent;
5import android.os.Bundle;
6import android.os.Handler;
7import android.os.Message;
8import android.view.View;
9import android.widget.Button;
10import android.widget.ProgressBar;
11import android.widget.TextView;
12
13public class ProgressBarActivity extends Activity{
14
15 private ProgressBar pb_horizontalProgressBar;
16 private int myProgress = 0;
17 private TextView tvStatus;
18 private Handler myHandle = new Handler();
19
20 @Override
21 public void onCreate(Bundle savedInstanceState) {
22 super.onCreate(savedInstanceState);
23 setContentView(R.layout.layout_progressbar);
24
25
26 pb_horizontalProgressBar = (ProgressBar)findViewById(R.id.pb_progressbar_horizontal);
27 tvStatus = (TextView)findViewById(R.id.lb_status);
28
29 new Thread(myThread).start();
30
31 Button btZurueck = (Button)findViewById(R.id.bt_zurueck);
32 btZurueck.setOnClickListener(new View.OnClickListener() {
33 public void onClick(View view) {
34
35 Intent intent = new Intent();
36 setResult(RESULT_OK, intent);
37 finish();
38
39 }
40 });
41 }
42
43
44 private Runnable myThread = new Runnable(){
45
46 @Override
47 public void run() {
48
49 tvStatus.setText("Status: In Progress...");
50
51 while (myProgress < 100){
52 try{
53 myHandle.sendMessage(myHandle.obtainMessage());
54 Thread.sleep(50);
55 System.out.println(myProgress);
56
57
58 myHandle.post(new Runnable() {
59 public void run() {
60 myProgress++;
61 pb_horizontalProgressBar.setProgress(myProgress);
62 }
63 });
64
65 } catch(Throwable t){
66 t.printStackTrace();
67 }
68
69 }
70 }
71 };
72}

1if(myProgress >= 100){
2 tvStatus.setText("Status: Done!");
3}

1android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread craeted a view hierarchy can touch its views.