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WidgetHost Activity to Fragment

OP Tzeik

8th June 2014, 06:35 PM   |  #1  
OP Junior Member
Thanks Meter: 0
4 posts
Join Date:Joined: Dec 2013
I am trying to convert a WidgetHostActivity to Fragment but i get an error when i am trying to open WidgetManager. Here is the convert i have done so far (without OnStart and OnStop)...
public class FragmentBlue extends Fragment implements OnLongClickListener 

static final String TAG = "FragmentBlue";

public static final int RESULT_OK = -1;

public static final int RESULT_CANCELED = 0;

AppWidgetManager mAppWidgetManager;
AppWidgetHost mAppWidgetHost;

ViewGroup mainlayout;
TextView text;

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragment_blue, container, false);

    mainlayout = (ViewGroup) view.findViewById(R.id.main_layout);
    text = (TextView)view.findViewById(R.id.tvtext);

    mAppWidgetManager = AppWidgetManager.getInstance(getActivity());
    mAppWidgetHost = new AppWidgetHost(getActivity(), R.id.APPWIDGET_HOST_ID);

    return view;

 * Launches the menu to select the widget. The selected widget will be on
 * the result of the activity.
void selectWidget() {
    int appWidgetId = this.mAppWidgetHost.allocateAppWidgetId();
    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    startActivityForResult(pickIntent, R.id.REQUEST_PICK_APPWIDGET);

 * This avoids a bug in the com.android.settings.AppWidgetPickActivity,
 * which is used to select widgets. This just adds empty extras to the
 * intent, avoiding the bug.
void addEmptyData(Intent pickIntent) {
    ArrayList<AppWidgetProviderInfo> customInfo = new ArrayList<AppWidgetProviderInfo>();
    pickIntent.putParcelableArrayListExtra(AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
    ArrayList<Bundle> customExtras = new ArrayList<Bundle>();
    pickIntent.putParcelableArrayListExtra(AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);

 * If the user has selected an widget, the result will be in the 'data' when
 * this function is called.
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == RESULT_OK) {
        if (requestCode == R.id.REQUEST_PICK_APPWIDGET) {
        } else if (requestCode == R.id.REQUEST_CREATE_APPWIDGET) {
    } else if (resultCode == RESULT_CANCELED && data != null) {
        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
        if (appWidgetId != -1) {

 * Checks if the widget needs any configuration. If it needs, launches the
 * configuration activity.
private void configureWidget(Intent data) {
    Bundle extras = data.getExtras();
    int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
    AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
    if (appWidgetInfo.configure != null) {
        Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
        intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
        startActivityForResult(intent, R.id.REQUEST_CREATE_APPWIDGET);
    } else {

 * Creates the widget and adds to our view layout.
public void createWidget(Intent data) {
    Bundle extras = data.getExtras();
    int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
    AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);

    AppWidgetHostView hostView = mAppWidgetHost.createView(getActivity(), appWidgetId, appWidgetInfo);
    hostView.setAppWidget(appWidgetId, appWidgetInfo);

    Log.i(TAG, "The widget size is: " + appWidgetInfo.minWidth + "*" + appWidgetInfo.minHeight);
I think the problem is into startActivityForResult(pickIntent, R.id.REQUEST_PICK_APPWIDGET); cause when i change R.id.REQUEST_PICK_APPWIDGET to a number (e.g. 1) WidgetManager opens and when i choose an installed widget it does nothing (just closing the window). I hope it is understandable.
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