Java Code Examples for androidx.appcompat.widget.Toolbar#getChildAt()

/**
 * Returns the menu item, which shows the navigation icon of the tab switcher's toolbar.
 *
 * @return The menu item, which shows the navigation icon of the tab switcher's toolbar, as an
 * instance of the class {@link View} or null, if no navigation icon is shown
 */
@Nullable
private View getNavigationMenuItem() {
    Toolbar[] toolbars = tabSwitcher.getToolbars();

    if (toolbars != null) {
        Toolbar toolbar = toolbars.length > 1 ? toolbars[1] : toolbars[0];
        int size = toolbar.getChildCount();

        for (int i = 0; i < size; i++) {
            View child = toolbar.getChildAt(i);

            if (child instanceof ImageButton) {
                return child;
            }
        }
    }

    return null;
}
 

public void showOverflowPrompt(View view)
{
    final MaterialTapTargetPrompt.Builder tapTargetPromptBuilder = new MaterialTapTargetPrompt.Builder(this)
            .setPrimaryText(R.string.overflow_prompt_title)
            .setSecondaryText(R.string.overflow_prompt_description)
            .setAnimationInterpolator(new FastOutSlowInInterpolator())
            .setMaxTextWidth(R.dimen.tap_target_menu_max_width)
            .setIcon(R.drawable.ic_more_vert);
    final Toolbar tb = this.findViewById(R.id.toolbar);
    final View child = tb.getChildAt(2);
    if (child instanceof ActionMenuView)
    {
        final ActionMenuView actionMenuView = ((ActionMenuView) child);
        tapTargetPromptBuilder.setTarget(actionMenuView.getChildAt(actionMenuView.getChildCount() - 1));
    }
    else
    {
        Toast.makeText(this, R.string.overflow_unavailable, Toast.LENGTH_SHORT).show();
    }
    tapTargetPromptBuilder.show();
}
 

public void showStylePrompt(View view)
{
    final MaterialTapTargetPrompt.Builder builder = new MaterialTapTargetPrompt.Builder(this, R.style.MaterialTapTargetPromptTheme_FabTarget);
    final Toolbar tb = this.findViewById(R.id.toolbar);
    final View child = tb.getChildAt(2);
    if (child instanceof ActionMenuView)
    {
        final ActionMenuView actionMenuView = ((ActionMenuView) child);
        builder.setTarget(actionMenuView.getChildAt(actionMenuView.getChildCount() - 1));
    }
    else
    {
        Toast.makeText(this, R.string.overflow_unavailable, Toast.LENGTH_SHORT).show();
    }
    builder.setIcon(R.drawable.ic_more_vert)
            .show();
}
 

public void showOverflowPrompt(View view)
{
    final MaterialTapTargetPrompt.Builder tapTargetPromptBuilder = new MaterialTapTargetPrompt.Builder(this)
            .setPrimaryText(R.string.overflow_prompt_title)
            .setSecondaryText(R.string.overflow_prompt_description)
            .setAnimationInterpolator(new FastOutSlowInInterpolator())
            .setMaxTextWidth(R.dimen.max_prompt_width)
            .setIcon(R.drawable.ic_more_vert)
            .setClipToView(findViewById(R.id.dialog_view));
    final Toolbar tb = this.findViewById(R.id.toolbar);
    final View child = tb.getChildAt(2);
    if (child instanceof ActionMenuView)
    {
        final ActionMenuView actionMenuView = ((ActionMenuView) child);
        tapTargetPromptBuilder.setTarget(actionMenuView.getChildAt(actionMenuView.getChildCount() - 1));
    }
    else
    {
        Toast.makeText(this, R.string.overflow_unavailable, Toast.LENGTH_SHORT).show();
    }
    tapTargetPromptBuilder.show();
}
 

@Override
protected void onPostExecute(Void dummy) {
    prefHelper.setNewestWhatif(mTitles.size());
    setupAdapter(prefHelper.hideReadWhatIf());

    Toolbar toolbar = ((MainActivity) getActivity()).getToolbar();
    if (toolbar.getAlpha() == 0) {
        toolbar.setTranslationY(-300);
        toolbar.animate().setDuration(300).translationY(0).alpha(1);
        View view;
        for (int i = 0; i < toolbar.getChildCount(); i++) {
            view = toolbar.getChildAt(i);
            view.setTranslationY(-300);
            view.animate().setStartDelay(50 * (i + 1)).setDuration(70 * (i + 1)).translationY(0);
        }
    }
    if (newIntent) {
        Intent intent = new Intent(getActivity(), WhatIfActivity.class);
        startActivity(intent);
        newIntent = false;
    }
}
 

private TextView findTitleTextView(Toolbar toolbar){
    for (int i = 0; i < toolbar.getChildCount(); i++) {
        View toolBarChild = toolbar.getChildAt(i);
        if (toolBarChild instanceof TextView &&
                ((TextView)toolBarChild).getText() != null &&
                ((TextView)toolBarChild).getText().toString().contentEquals(mContext.getResources().getString(R.string.key_binding_default_toolbar_name))) {
            return (TextView) toolBarChild;
        }
    }
    return null;
}
 

protected void animateToolbar() {
    Toolbar toolbar = ((MainActivity) getActivity()).getToolbar();
    if (toolbar.getAlpha() == 0) {
        toolbar.setTranslationY(-300);
        toolbar.animate().setDuration(300).translationY(0).alpha(1);
        View view;
        for (int i = 2; i < toolbar.getChildCount(); i++) {
            view = toolbar.getChildAt(i);
            view.setTranslationY(-300);
            view.animate().setStartDelay(50 * (i + 1)).setDuration(70 * (i + 1)).translationY(0);
        }
    }
}
 

protected void animateToolbar() {
    Toolbar toolbar = getMainActivity().getToolbar();
    if (toolbar.getAlpha() == 0) {
        toolbar.setTranslationY(-300);
        toolbar.animate().setDuration(380).translationY(0).alpha(1);
        View view;
        for (int i = 0; i < toolbar.getChildCount(); i++) {
            view = toolbar.getChildAt(i);
            view.setTranslationY(-300);
            view.animate().setStartDelay(50 * (i + 1)).setDuration(70 * (i + 1)).translationY(0);
        }
    }
}
 

/**
 * Sets the font of any TextView found within the ToolBar.
 * <br/>
 * TODO: Remove this function when this issue gets resolved: https://github.com/chrisjenx/Calligraphy/issues/295
 */
private void setToolBarFont() {
    final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    for (int i = 0; i < toolbar.getChildCount(); i++) {
        final View child = toolbar.getChildAt(i);
        if (child instanceof TextView) {
            final TextView textView = (TextView) child;
            CalligraphyUtils.applyFontToTextView(textView, TypefaceUtils.load(getAssets(), "fonts/OpenSans-Semibold.ttf"));
        }
    }
}
 

public ViewData(Toolbar toolbar){
    int count = toolbar.getChildCount();
    views = new ArrayList<>(count);
    lefts = new ArrayList<>(count);

    for(int i = 0; i < count; i++){
        View child = toolbar.getChildAt(i);
        if(!(child instanceof ActionMenuView)) {
            views.add(child);
            lefts.add(child.getLeft());
        }
    }
}
 

/**
 * Use this method to colorize toolbar icons to the desired target color
 *
 * @param toolbarView       toolbar view being colored
 * @param toolbarIconsColor the target color of toolbar icons
 * @param activity          reference to activity needed to register observers
 */
public static void colorizeToolbar(@NonNull Toolbar toolbarView, int toolbarIconsColor, @NonNull Activity activity) {
    final PorterDuffColorFilter colorFilter = new PorterDuffColorFilter(toolbarIconsColor, PorterDuff.Mode.MULTIPLY);

    for (int i = 0; i < toolbarView.getChildCount(); i++) {
        final View v = toolbarView.getChildAt(i);

        //Step 1 : Changing the color of back button (or open drawer button).
        if (v instanceof ImageButton) {
            //Action Bar back button
            ((ImageButton) v).getDrawable().setColorFilter(colorFilter);
        }

        if (v instanceof ActionMenuView) {
            for (int j = 0; j < ((ActionMenuView) v).getChildCount(); j++) {

                //Step 2: Changing the color of any ActionMenuViews - icons that are not back button, nor text, nor overflow menu icon.
                //Colorize the ActionViews -> all icons that are NOT: back button | overflow menu
                final View innerView = ((ActionMenuView) v).getChildAt(j);

                if (innerView instanceof ActionMenuItemView) {
                    for (int k = 0; k < ((ActionMenuItemView) innerView).getCompoundDrawables().length; k++) {
                        if (((ActionMenuItemView) innerView).getCompoundDrawables()[k] != null) {
                            final int finalK = k;

                            //Important to set the color filter in seperate thread, by adding it to the message queue
                            //Won't work otherwise.
                            innerView.post(new Runnable() {
                                @Override
                                public void run() {
                                    Drawable drawable = ((ActionMenuItemView) innerView).getCompoundDrawables()[finalK];
                                    if (drawable != null) {
                                        drawable.setColorFilter(colorFilter);
                                    }
                                }
                            });
                        }
                    }
                }
            }
        }

        //Step 3: Changing the color of title and subtitle.
        toolbarView.setTitleTextColor(toolbarIconsColor);
        toolbarView.setSubtitleTextColor(toolbarIconsColor);
    }
}