Mega Code Archive

 
Categories / Android / UI
 

Using progress bar

package app.test; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; import android.app.ProgressDialog; import android.os.Handler; import android.os.Message; public class Test extends Activity {   CharSequence[] items = { "Google", "Apple", "Microsoft" };   boolean[] itemsChecked = new boolean [items.length];        private ProgressDialog _progressDialog;     private int _progress = 0;     private Handler _progressHandler;            @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);                  Button btn = (Button) findViewById(R.id.btn_dialog);                 btn.setOnClickListener(new View.OnClickListener() {             public void onClick(View v) {                 showDialog(1);                 _progress = 0;                 _progressDialog.setProgress(0);                 _progressHandler.sendEmptyMessage(0);             }         });         _progressHandler = new Handler() {             public void handleMessage(Message msg) {                 super.handleMessage(msg);                 if (_progress >= 100) {                     _progressDialog.dismiss();                 } else {                     _progress++;                     _progressDialog.incrementProgressBy(1);                     _progressHandler.sendEmptyMessageDelayed(0, 100);                 }             }         };     }          @Override     protected Dialog onCreateDialog(int id) {          switch (id) {         case 0:                     return new AlertDialog.Builder(this)           .setIcon(R.drawable.icon)             .setTitle("This is a dialog with some simple text...")             .setPositiveButton("OK", new                  DialogInterface.OnClickListener() {                 public void onClick(DialogInterface dialog,                  int whichButton)                  {                   Toast.makeText(getBaseContext(),                       "OK clicked!", Toast.LENGTH_SHORT).show();                 }             })             .setNegativeButton("Cancel", new                  DialogInterface.OnClickListener() {                 public void onClick(DialogInterface dialog,                      int whichButton)                  {                   Toast.makeText(getBaseContext(),                          "Cancel clicked!", Toast.LENGTH_SHORT).show();                 }             })                         .setMultiChoiceItems(items, itemsChecked, new                  DialogInterface.OnMultiChoiceClickListener() {                     @Override           public void onClick(DialogInterface dialog, int which, boolean isChecked) {             Toast.makeText(getBaseContext(),                   items[which] + (isChecked ? " checked!": " unchecked!"),                    Toast.LENGTH_SHORT).show();           }         }             )             .create();                   case 1:             _progressDialog = new ProgressDialog(this);             _progressDialog.setIcon(R.drawable.icon);             _progressDialog.setTitle("Downloading files...");             _progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);                         _progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "Hide", new                  DialogInterface.OnClickListener() {                 public void onClick(DialogInterface dialog,                      int whichButton)                  {                   Toast.makeText(getBaseContext(),                          "Hide clicked!", Toast.LENGTH_SHORT).show();                 }             });             _progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new                  DialogInterface.OnClickListener() {                 public void onClick(DialogInterface dialog,                      int whichButton)                  {                   Toast.makeText(getBaseContext(),                          "Cancel clicked!", Toast.LENGTH_SHORT).show();                 }             });             return _progressDialog;         }                 return null;     } } //main.xml <?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" />     <Button     android:id="@+id/btn_dialog"     android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:text="Click to display a dialog" /> </LinearLayout>