Example usage for android.widget Gallery setCallbackDuringFling

Introduction

In this page you can find the example usage for android.widget Gallery setCallbackDuringFling.

Prototype

public void setCallbackDuringFling(boolean shouldCallback) 

Source Link

Document

Whether or not to callback on any #getOnItemSelectedListener() while the items are being flinged.

Usage

From source file:com.cognizant.trumobi.PersonaLauncher.java

/**
 * ADW: Put the launcher in desktop edit mode We could be able to add,
 * remove and reorder screens/*from  w  w w .  j av a  2s. c  o m*/
 */
private void startDesktopEdit() {
    if (!mIsEditMode) {
        mIsEditMode = true;
        final PersonaWorkspace personaWorkspace = mWorkspace;
        if (personaWorkspace == null)
            return;
        personaWorkspace.enableChildrenCache(0, personaWorkspace.getChildCount());
        hideDesktop(true);
        personaWorkspace.lock();
        // Load a gallery view
        final PersonaScreensAdapter screens = new PersonaScreensAdapter(this,
                personaWorkspace.getChildAt(0).getWidth(), personaWorkspace.getChildAt(0).getHeight());
        for (int i = 0; i < personaWorkspace.getChildCount(); i++) {
            screens.addScreen((PersonaCellLayout) personaWorkspace.getChildAt(i));
        }
        mScreensEditor = mInflater.inflate(R.layout.pr_screens_editor, null);
        final Gallery gal = (Gallery) mScreensEditor.findViewById(R.id.gallery_screens);
        gal.setCallbackDuringFling(false);
        gal.setClickable(false);
        gal.setAdapter(screens);
        // Setup delete button event
        View deleteButton = mScreensEditor.findViewById(R.id.delete_screen);
        deleteButton.setOnClickListener(new android.view.View.OnClickListener() {
            public void onClick(View v) {
                final int screenToDelete = gal.getSelectedItemPosition();
                if (personaWorkspace.getChildCount() > 1) {
                    AlertDialog alertDialog = new AlertDialog.Builder(PersonaLauncher.this).create();
                    alertDialog.setTitle(getResources().getString(R.string.title_dialog_xml));
                    alertDialog.setMessage(getResources().getString(R.string.message_delete_desktop_screen));
                    alertDialog.setButton(DialogInterface.BUTTON_POSITIVE,
                            getResources().getString(android.R.string.ok),
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                    personaWorkspace.removeScreen(screenToDelete);
                                    screens.removeScreen(screenToDelete);
                                }
                            });
                    alertDialog.setButton(DialogInterface.BUTTON_NEGATIVE,
                            getResources().getString(android.R.string.cancel),
                            new DialogInterface.OnClickListener() {
                                public void onClick(DialogInterface dialog, int which) {
                                }
                            });
                    alertDialog.show();
                } else {
                    Toast t = Toast.makeText(PersonaLauncher.this,
                            R.string.message_cannot_delete_desktop_screen, Toast.LENGTH_LONG);
                    t.show();
                }

            }
        });
        // Setup add buttons events
        View addLeftButton = mScreensEditor.findViewById(R.id.add_left);
        addLeftButton.setOnClickListener(new android.view.View.OnClickListener() {
            public void onClick(View v) {
                if (screens.getCount() < MAX_SCREENS) {
                    final int screenToAddLeft = gal.getSelectedItemPosition();
                    PersonaCellLayout newScreen = personaWorkspace.addScreen(screenToAddLeft);
                    screens.addScreen(newScreen, screenToAddLeft);
                } else {
                    Toast t = Toast.makeText(PersonaLauncher.this, R.string.message_cannot_add_desktop_screen,
                            Toast.LENGTH_LONG);
                    t.show();
                }
            }
        });
        View addRightButton = mScreensEditor.findViewById(R.id.add_right);
        addRightButton.setOnClickListener(new android.view.View.OnClickListener() {
            public void onClick(View v) {
                if (screens.getCount() < MAX_SCREENS) {
                    final int screenToAddRight = gal.getSelectedItemPosition();
                    PersonaCellLayout newScreen = personaWorkspace.addScreen(screenToAddRight + 1);
                    screens.addScreen(newScreen, screenToAddRight + 1);
                } else {
                    Toast t = Toast.makeText(PersonaLauncher.this, R.string.message_cannot_add_desktop_screen,
                            Toast.LENGTH_LONG);
                    t.show();
                }
            }
        });

        final View swapLeftButton = mScreensEditor.findViewById(R.id.swap_left);
        swapLeftButton.setOnClickListener(new android.view.View.OnClickListener() {
            public void onClick(View v) {
                int currentScreen = gal.getSelectedItemPosition();
                if (currentScreen > 0) {
                    personaWorkspace.swapScreens(currentScreen - 1, currentScreen);
                    screens.swapScreens(currentScreen - 1, currentScreen);
                } else {
                    Toast t = Toast.makeText(PersonaLauncher.this, R.string.message_cannot_swap_desktop_screen,
                            Toast.LENGTH_LONG);
                    t.show();
                }
            }
        });
        final View swapRightButton = mScreensEditor.findViewById(R.id.swap_right);
        swapRightButton.setOnClickListener(new android.view.View.OnClickListener() {
            public void onClick(View v) {
                int currentScreen = gal.getSelectedItemPosition();
                if (currentScreen < gal.getCount() - 1) {
                    personaWorkspace.swapScreens(currentScreen, currentScreen + 1);
                    screens.swapScreens(currentScreen, currentScreen + 1);
                } else {
                    Toast t = Toast.makeText(PersonaLauncher.this, R.string.message_cannot_swap_desktop_screen,
                            Toast.LENGTH_LONG);
                    t.show();
                }
            }
        });
        final View setDefaultButton = mScreensEditor.findViewById(R.id.set_default);
        setDefaultButton.setOnClickListener(new android.view.View.OnClickListener() {
            public void onClick(View v) {
                int currentScreen = gal.getSelectedItemPosition();
                if (currentScreen < mWorkspace.getChildCount()) {
                    mWorkspace.setDefaultScreen(currentScreen);
                    PersonaAlmostNexusSettingsHelper.setDefaultScreen(PersonaLauncher.this, currentScreen);
                    Toast t = Toast.makeText(PersonaLauncher.this, R.string.pref_title_default_screen,
                            Toast.LENGTH_LONG);
                    t.show();
                }
            }
        });
        gal.setOnItemSelectedListener(new OnItemSelectedListener() {
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                if (position <= 0) {
                    swapLeftButton.setVisibility(View.GONE);
                } else {
                    swapLeftButton.setVisibility(View.VISIBLE);
                }
                if (position < parent.getCount() - 1) {
                    swapRightButton.setVisibility(View.VISIBLE);
                } else {
                    swapRightButton.setVisibility(View.GONE);
                }
            }

            public void onNothingSelected(AdapterView<?> arg0) {
            }

        });
        mDragLayer.addView(mScreensEditor);
    }
}

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