Code example for AlertDialog.Builder

Methods: setAdapter, setTitle, show

0
} 
 
@Override 
protected Dialog onCreateDialog(int id) {
	Dialog dialog = null;
	AlertDialog.Builder builder = new Builder(this);
 
	if (fileList == null) { 
		Log.e(TAG, "No files loaded");
		dialog = builder.create();
		return dialog;
	} 
 
	switch (id) {
	case DIALOG_LOAD_FILE: 
		builder.setTitle("Choose your file");
		builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
			public void onClick(DialogInterface dialog, int which) {
				chosenFile = fileList[which].file;
				File sel = new File(path + "/" + chosenFile);
				if (sel.isDirectory()) {
					firstLvl = false; 
 
					// Adds chosen directory to list 
					str.add(chosenFile); 
					fileList = null; 
					path = new File(sel + "");
 
					loadFileList(); 
 
					removeDialog(DIALOG_LOAD_FILE); 
					showDialog(DIALOG_LOAD_FILE); 
					Log.d(TAG, path.getAbsolutePath());
 
				} 
 
				// Checks if 'up' was clicked 
				else if (chosenFile.equalsIgnoreCase("up") && !sel.exists()) {
 
					// present directory removed from list 
					String s = str.remove(str.size() - 1);
 
					// path modified to exclude present directory 
					path = new File(path.toString().substring(0,
							path.toString().lastIndexOf(s)));
					fileList = null; 
 
					// if there are no more directories in the list, then 
					// its the first level 
					if (str.isEmpty()) { 
						firstLvl = true; 
					} 
					loadFileList(); 
 
					removeDialog(DIALOG_LOAD_FILE); 
					showDialog(DIALOG_LOAD_FILE); 
					Log.d(TAG, path.getAbsolutePath());
				} 
				// File picked 
				else { 
					Toast.makeText(Mainactivity.this,chosenFile,Toast.LENGTH_SHORT).show();
					filename.setText(chosenFile); 
				} 
 
			} 
		}); 
		break; 
	} 
	dialog = builder.show();
	return dialog;
} 
}