private void prepareAmplifierButtons()
{
    clearSoundVolumeButtons();
    soundControlLayout.setVisibility(View.VISIBLE);
    listeningModeLayout.setVisibility(View.GONE);

    final AmpOperationCommandMsg.Command[] commands = new AmpOperationCommandMsg.Command[]
    {
        AmpOperationCommandMsg.Command.AMTTG,
        AmpOperationCommandMsg.Command.MVLDOWN,
        AmpOperationCommandMsg.Command.MVLUP
    };
    for (AmpOperationCommandMsg.Command c : commands)
    {
        final AmpOperationCommandMsg msg = new AmpOperationCommandMsg(c.getCode());
        final AppCompatImageButton b = createButton(
                msg.getCommand().getImageId(), msg.getCommand().getDescriptionId(),
                msg, msg.getCommand().getCode());
        soundControlLayout.addView(b);
        amplifierButtons.add(b);
    }
}
 

AppCompatImageButton createButton(
        @DrawableRes int imageId, @StringRes int descriptionId,
        final ISCPMessage msg, Object tag,
        int leftMargin, int rightMargin, int verticalMargin)
{
    ContextThemeWrapper wrappedContext = new ContextThemeWrapper(activity, R.style.ImageButtonPrimaryStyle);
    final AppCompatImageButton b = new AppCompatImageButton(wrappedContext, null, 0);

    final LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(buttonSize, buttonSize);
    lp.setMargins(leftMargin, verticalMargin, rightMargin, verticalMargin);
    b.setLayoutParams(lp);

    b.setTag(tag);
    prepareButton(b, msg, imageId, descriptionId);
    return b;
}
 

static void collectButtons(LinearLayout layout, ArrayList<View> out)
{
    for (int k = 0; k < layout.getChildCount(); k++)
    {
        View v = layout.getChildAt(k);
        if (v instanceof AppCompatImageButton || v instanceof AppCompatButton)
        {
            out.add(v);
        }
        else if (v instanceof TextView && v.getTag() != null)
        {
            out.add(v);
        }
        if (v instanceof LinearLayout)
        {
            collectButtons((LinearLayout) v, out);
        }
    }
}
 

private void updateItem(@NonNull final MenuItem m, final @DrawableRes int iconId, final String title, final ButtonListener editListener)
{
    if (m.getActionView() != null && m.getActionView() instanceof LinearLayout)
    {
        final LinearLayout l = (LinearLayout)m.getActionView();
        ((AppCompatImageView) l.findViewWithTag("ICON")).setImageResource(iconId);
        ((AppCompatTextView)l.findViewWithTag("TEXT")).setText(title);
        final AppCompatImageButton editBtn = l.findViewWithTag("EDIT");
        if (editListener != null)
        {
            editBtn.setVisibility(View.VISIBLE);
            editBtn.setOnClickListener(v -> editListener.onEditItem());
            Utils.setButtonEnabled(activity, editBtn, true);
        }
        else
        {
            editBtn.setVisibility(View.GONE);
        }
    }
    m.setVisible(true);
}
 

@Override
public void onClick(View b)
{
    if (b instanceof AppCompatImageButton)
    {
        if (b.getId() == R.id.palette_settings_button)
        {
            DialogPaletteSettings d = new DialogPaletteSettings(context, this, visibleGroups);
            d.show();
        }
        else if (listChangeIf != null)
        {
            final PaletteButton pb = (PaletteButton) b;
            listChangeIf.onPalettePressed(pb.getCode());
        }
    }
}
 

private void prepareGroup(Context context, LinearLayout itemLayout, String s, List<String> visibleGroups)
{
    final AppCompatCheckBox cb = itemLayout.findViewById(R.id.dialog_palette_settings_checkbox);
    cb.setTag(s);
    cb.setChecked(visibleGroups.contains(s));
    final LinearLayout buttonLayout = itemLayout.findViewById(R.id.dialog_palette_settings_buttons);
    for (int i = 0; i < buttonLayout.getChildCount(); i++)
    {
        if (buttonLayout.getChildAt(i) instanceof AppCompatImageButton)
        {
            final AppCompatImageButton b = (AppCompatImageButton) buttonLayout.getChildAt(i);
            b.setOnLongClickListener(this);
            ViewUtils.setImageButtonColorAttr(context, b, R.attr.colorDialogContent);
        }
    }
}
 

/**
 * Verify the Mini Controller is displayed
 * Click the Mini Controller and verify the Expanded Controller is displayed
 */
@Test
public void testMiniController() throws InterruptedException, UiObjectNotFoundException {
    mTestUtils.connectToCastDevice();
    mTestUtils.playCastContent(VIDEO_TITLE);

    // click to close expanded controller
    onView(allOf(
            isAssignableFrom(AppCompatImageButton.class)
            , withParent(isAssignableFrom(Toolbar.class))
    ))
            .check(matches(isDisplayed()))
            .perform(click());

    mTestUtils.verifyMiniController();

    mDevice.pressEnter();
    onView(withId(R.id.cast_mini_controller))
            .perform(click());

    mTestUtils.verifyExpandedController();

    mTestUtils.disconnectFromCastDevice();
}
 

private void initWidget() {
    AppCompatImageButton backBtn = findViewById(R.id.activity_introduce_backBtn);
    backBtn.setOnClickListener(v -> finishSelf(true));

    if (introduceModelList.size() <= 1) {
        findViewById(R.id.activity_introduce_buttonBar).setVisibility(View.GONE);
    }

    setBottomButtonStyle(0);

    initPage();

    InkPageIndicator indicator = findViewById(R.id.activity_introduce_indicator);
    if (introduceModelList.size() <= 1) {
        indicator.setAlpha(0f);
    } else {
        indicator.setViewPager(viewPager);
        indicator.setAlpha(1f);
    }
}
 

/**
 * Procedure sets AppCompatImageButton color given by attribute ID
 */
private static void setImageButtonColorAttr(Context context, AppCompatImageButton b, @AttrRes int resId)
{
    final int c = getThemeColorAttr(context, resId);
    b.clearColorFilter();
    b.setColorFilter(c, PorterDuff.Mode.SRC_ATOP);
}
 

public static void setButtonEnabled(Context context, View b, boolean isEnabled)
{
    @AttrRes int resId = isEnabled ? R.attr.colorButtonEnabled : R.attr.colorButtonDisabled;
    b.setEnabled(isEnabled);
    if (b instanceof AppCompatImageButton)
    {
        Utils.setImageButtonColorAttr(context, (AppCompatImageButton) b, resId);
    }
    if (b instanceof AppCompatButton)
    {
        ((AppCompatButton) b).setTextColor(Utils.getThemeColorAttr(context, resId));
    }
}
 

public static void setButtonSelected(Context context, View b, boolean isSelected)
{
    @AttrRes int resId = isSelected ? R.attr.colorAccent : R.attr.colorButtonEnabled;
    b.setSelected(isSelected);
    if (b instanceof AppCompatImageButton)
    {
        Utils.setImageButtonColorAttr(context, (AppCompatImageButton) b, resId);
    }
    if (b instanceof AppCompatButton)
    {
        ((AppCompatButton) b).setTextColor(Utils.getThemeColorAttr(context, resId));
    }
}
 

private void prepareFmDabButtons()
{
    for (AppCompatImageButton b : fmDabButtons)
    {
        String[] tokens = b.getTag().toString().split(":");
        if (tokens.length != 2)
        {
            continue;
        }
        final String msgName = tokens[0];
        switch (msgName)
        {
        case PresetCommandMsg.CODE:
            final PresetCommandMsg pMsg = new PresetCommandMsg(
                    ReceiverInformationMsg.DEFAULT_ACTIVE_ZONE, tokens[1]);
            if (pMsg.getCommand() != null)
            {
                prepareButton(b, pMsg, pMsg.getCommand().getImageId(), pMsg.getCommand().getDescriptionId());
            }
            break;
        case TuningCommandMsg.CODE:
            final TuningCommandMsg tMsg = new TuningCommandMsg(
                    ReceiverInformationMsg.DEFAULT_ACTIVE_ZONE, tokens[1]);
            if (tMsg.getCommand() != null)
            {
                prepareButton(b, tMsg, tMsg.getCommand().getImageId(), tMsg.getCommand().getDescriptionId());
            }
            break;
        }
    }
}
 

private void setButtonsEnabled(List<AppCompatImageButton> buttons, boolean flag)
{
    for (AppCompatImageButton b : buttons)
    {
        setButtonEnabled(b, flag);
    }
}
 

private void setButtonsVisibility(List<AppCompatImageButton> buttons, int flag)
{
    for (AppCompatImageButton b : buttons)
    {
        b.setVisibility(flag);
    }
}
 

private void updateInputSource(@DrawableRes int imageId, final boolean visible)
{
    AppCompatImageButton btn = rootView.findViewById(R.id.btn_input_selector);
    btn.setImageResource(imageId);
    btn.setVisibility(visible ? View.VISIBLE : View.GONE);
    setButtonEnabled(btn, false);
}
 

private void updateMultiroomGroupBtn(AppCompatImageButton b, @Nullable final State state)
{
    if (state != null && isGroupMenu())
    {
        final boolean isMaster = state.getMultiroomRole() == MultiroomDeviceInformationMsg.RoleType.SRC;
        b.setVisibility(View.VISIBLE);
        setButtonEnabled(b, true);
        setButtonSelected(b, isMaster);
        b.setContentDescription(activity.getString(R.string.cmd_multiroom_group));

        prepareButtonListeners(b, null, () ->
        {
            if (activity.isConnected())
            {
                final AlertDialog alertDialog = MultiroomManager.createDeviceSelectionDialog(
                        activity, b.getContentDescription());
                alertDialog.show();
                Utils.fixIconColor(alertDialog, android.R.attr.textColorSecondary);
            }
        });
    }
    else
    {
        b.setVisibility(View.GONE);
        setButtonEnabled(b, false);
    }
}
 

private void updateFeedButton(final AppCompatImageButton btn, final MenuStatusMsg.Feed feed)
{
    btn.setVisibility(feed.isImageValid() ? View.VISIBLE : View.GONE);
    if (feed.isImageValid())
    {
        btn.setImageResource(feed.getImageId());
        setButtonEnabled(btn, true);
        setButtonSelected(btn, feed == MenuStatusMsg.Feed.LOVE);
    }
}
 

AppCompatImageButton createButton(
        @DrawableRes int imageId, @StringRes int descriptionId,
        final ISCPMessage msg, Object tag)
{
    return createButton(imageId, descriptionId, msg, tag,
            buttonMarginHorizontal, buttonMarginHorizontal, buttonMarginVertical);
}
 

void prepareButton(@NonNull AppCompatImageButton b,
                   @DrawableRes final int imageId,
                   @StringRes final int descriptionId)
{
    b.setImageResource(imageId);
    if (descriptionId != -1)
    {
        b.setContentDescription(activity.getResources().getString(descriptionId));
    }
}
 

void prepareButton(@NonNull AppCompatImageButton b,
                   final ISCPMessage msg,
                   @DrawableRes final int imageId,
                   @StringRes final int descriptionId)
{
    prepareButton(b, imageId, descriptionId);
    b.setImageResource(imageId);
    prepareButtonListeners(b, msg);
    setButtonEnabled(b, false);
}
 

@Override
public void setNavigationIcon(@Nullable Drawable icon) {
    super.setNavigationIcon(icon);
    if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP || Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP_MR1) {
        int count = getChildCount();
        for (int i = 0; i < count; i++) {
            View child = getChildAt(i);
            if (child instanceof AppCompatImageButton) {
                AppCompatImageButton button = (AppCompatImageButton) child;
                button.setBackgroundResource(R.drawable.nav_toolbar_button_item_background);
            }
        }
    }
}
 

@Override
public void onCreateView(View view) {
    AppCompatImageButton refresh = view.findViewById(R.id.frequency_refresh);
    AppCompatImageButton reset = view.findViewById(R.id.frequency_reset);
    AppCompatImageButton restore = view.findViewById(R.id.frequency_restore);

    refresh.setOnClickListener(v -> {
        rotate(v, false);
        if (mRefreshListener != null) {
            mRefreshListener.onClick(v);
        }
    });
    reset.setOnClickListener(v -> {
        rotate(v, true);
        if (mResetListener != null) {
            mResetListener.onClick(v);
        }
    });
    restore.setOnClickListener(v -> {
        rotate(v, true);
        if (mRestoreListener != null) {
            mRestoreListener.onClick(v);
        }
    });

    setFullSpan(true);
    super.onCreateView(view);
}
 

@Override
public void onCreateView(View view) {
    AppCompatImageButton refresh = view.findViewById(R.id.frequency_refresh);
    AppCompatImageButton reset = view.findViewById(R.id.frequency_reset);
    AppCompatImageButton restore = view.findViewById(R.id.frequency_restore);

    refresh.setOnClickListener(v -> {
        rotate(v, false);
        if (mRefreshListener != null) {
            mRefreshListener.onClick(v);
        }
    });
    reset.setOnClickListener(v -> {
        rotate(v, true);
        if (mResetListener != null) {
            mResetListener.onClick(v);
        }
    });
    restore.setOnClickListener(v -> {
        rotate(v, true);
        if (mRestoreListener != null) {
            mRestoreListener.onClick(v);
        }
    });

    setFullSpan(true);
    super.onCreateView(view);
}
 

@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
    super.addView(child, index, params);
    if (child instanceof AppCompatImageButton) {
        mThemeComponent.addColorProperty(R.attr.actionBarTextColorPrimary, (c) ->
                ImageViewCompat.setImageTintList((ImageView) child, ColorStateList.valueOf(c)));
    } else if (child instanceof ActionMenuView) {
        mThemeComponent.addColorProperty(R.attr.actionBarTextColorPrimary, (c) -> {
            ActionMenuView ch = (ActionMenuView) child;
            Drawable d = DrawableCompat.wrap(ch.getOverflowIcon()).mutate();
            DrawableCompat.setTint(d, c);
            ch.setOverflowIcon(d);
        });
    }
}
 

@Override
public boolean onLongClick(View b)
{
    if (b instanceof AppCompatImageButton)
    {
        return ViewUtils.showButtonDescription(context, b);
    }
    return false;
}
 

static void setImageButtonEnabled(boolean enabled, AppCompatImageButton item, /*int iconResId,*/ Context context) {
    item.setEnabled(enabled);
    //Drawable originalIcon = ContextCompat.getDrawable(context, iconResId);
    //Drawable icon = enabled ? originalIcon : convertDrawableToGrayScale(originalIcon);
    //item.setImageDrawable(icon);
    if (enabled)
        item.setColorFilter(null);
    else
        item.setColorFilter(context.getColor(R.color.activityDisabledTextColor), PorterDuff.Mode.SRC_IN);
}
 

@Override
protected void onBindDialogView(View view) {
    super.onBindDialogView(view);

    AppCompatImageButton addButton = view.findViewById(R.id.applications_pref_dlg_add);
    TooltipCompat.setTooltipText(addButton, getString(R.string.applications_pref_dlg_add_button_tooltip));

    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getContext());
    applicationsListView = view.findViewById(R.id.applications_pref_dlg_listview);
    //applicationsListView.addItemDecoration(new DividerItemDecoration(getContext(), DividerItemDecoration.VERTICAL));
    applicationsListView.setLayoutManager(layoutManager);
    applicationsListView.setHasFixedSize(true);

    linlaProgress = view.findViewById(R.id.applications_pref_dlg_linla_progress);
    rellaDialog = view.findViewById(R.id.applications_pref_dlg_rella_dialog);

    listAdapter = new ApplicationsDialogPreferenceAdapterX(prefContext, preference, this);

    // added touch helper for drag and drop items
    ItemTouchHelper.Callback callback = new ItemTouchHelperCallback(listAdapter, false, false);
    itemTouchHelper = new ItemTouchHelper(callback);
    itemTouchHelper.attachToRecyclerView(applicationsListView);

    addButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            preference.startEditor(null);
        }
    });

    refreshListView(false);
}
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_updatechannel);

    mCardView = findViewById(R.id.updatechannel_card);
    AppCompatImageButton mBack = findViewById(R.id.back_button);
    mBack.setOnClickListener(v -> onBackPressed());
    AppCompatImageButton mSave = findViewById(R.id.save_button);
    mSave.setOnClickListener(v -> {
        if (Utils.checkWriteStoragePermission(this)) {
            if (mKernelNameHint.getText() != null && !mKernelNameHint.getText().toString().equals("")
                    && mKernelVersionHint.getText() != null && !mKernelVersionHint.getText().toString().equals("")
                    && mDownloadLinkHint.getText() != null && !mDownloadLinkHint.getText().toString().equals("")) {
                saveUpdateChannel();
            } else {
                Utils.snackbar(mCardView, getString(R.string.update_channel_create_abort));
            }
        } else {
            ActivityCompat.requestPermissions(this, new String[]{
                    Manifest.permission.WRITE_EXTERNAL_STORAGE},1);
            Utils.snackbar(mCardView, getString(R.string.permission_denied_write_storage));
        }
    });
    AppCompatTextView mClearAll = findViewById(R.id.clear_all);
    mClearAll.setOnClickListener(v -> {
        if (isTextEntered()) {
            new Dialog(this)
                    .setMessage(getString(R.string.clear_all_summary) + " " + getString(R.string.sure_question))
                    .setNegativeButton(getString(R.string.cancel), (dialog1, id1) -> {
                    })
                    .setPositiveButton(getString(R.string.yes), (dialog1, id1) -> {
                        clearAll();
                    })
                    .show();
        } else {
            Utils.snackbar(mCardView, getString(R.string.clear_all_abort_message));
        }
    });
    mKernelNameHint = findViewById(R.id.kernel_name_hint);
    mKernelVersionHint = findViewById(R.id.kernel_version_hint);
    mDownloadLinkHint = findViewById(R.id.download_link_hint);
    mChangelogHint = findViewById(R.id.changelog_hint);
    mSHA1Hint = findViewById(R.id.sha1_hint);
    mSupportHint = findViewById(R.id.support_hint);
    mDonationHint = findViewById(R.id.donation_link_hint);
}
 

@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
    initializeFragment(inflater, container, R.layout.device_fragment);

    // Friendly name
    {
        friendlyName = rootView.findViewById(R.id.device_edit_friendly_name);
        final AppCompatImageButton b = rootView.findViewById(R.id.device_change_friendly_name);
        prepareButtonListeners(b, null, () ->
        {
            if (activity.isConnected())
            {
                activity.getStateManager().sendMessage(
                        new FriendlyNameMsg(friendlyName.getText().toString()));
                // #119: Improve clearing focus for friendly name edit field
                friendlyName.clearFocus();
            }
        });
        setButtonEnabled(b, true);

        // #119: Improve clearing focus for friendly name edit field
        // OnClick for background layout: clear focus for friendly name text field
        {
            LinearLayout l = rootView.findViewById(R.id.device_background_layout);
            l.setClickable(true);
            l.setEnabled(true);
            l.setOnClickListener((v) -> friendlyName.clearFocus());
        }
    }

    prepareImageButton(R.id.btn_firmware_update, new FirmwareUpdateMsg(FirmwareUpdateMsg.Status.NET));
    prepareImageButton(R.id.device_dimmer_level_toggle, new DimmerLevelMsg(DimmerLevelMsg.Level.TOGGLE));
    prepareImageButton(R.id.device_digital_filter_toggle, new DigitalFilterMsg(DigitalFilterMsg.Filter.TOGGLE));
    prepareImageButton(R.id.music_optimizer_toggle, new MusicOptimizerMsg(MusicOptimizerMsg.Status.TOGGLE));
    prepareImageButton(R.id.device_auto_power_toggle, new AutoPowerMsg(AutoPowerMsg.Status.TOGGLE));
    prepareImageButton(R.id.hdmi_cec_toggle, new HdmiCecMsg(HdmiCecMsg.Status.TOGGLE));
    prepareImageButton(R.id.phase_matching_bass_toggle, new PhaseMatchingBassMsg(PhaseMatchingBassMsg.Status.TOGGLE));
    prepareImageButton(R.id.sleep_time_toggle, null);
    prepareImageButton(R.id.speaker_ab_command_toggle, null);
    prepareImageButton(R.id.google_cast_analytics_toggle, null);

    updateContent();
    return rootView;
}
 

private void updateDeviceInformation(@Nullable final State state)
{
    // Host
    ((TextView) rootView.findViewById(R.id.device_info_address)).setText(
            (state != null) ? state.getHostAndPort() : "");

    // Friendly name
    final boolean isFnValid = state != null
            && state.isFriendlyName();
    final LinearLayout fnLayout = rootView.findViewById(R.id.device_friendly_name);
    fnLayout.setVisibility(isFnValid ? View.VISIBLE : View.GONE);
    if (isFnValid)
    {
        // Friendly name
        friendlyName.setText(state.getDeviceName(true));
    }

    // Receiver information
    final boolean isRiValid = state != null
            && state.isReceiverInformation()
            && !state.deviceProperties.isEmpty();
    final LinearLayout riLayout = rootView.findViewById(R.id.device_receiver_information);
    riLayout.setVisibility(isRiValid ? View.VISIBLE : View.GONE);
    if (isRiValid)
    {
        // Common properties
        ((TextView) rootView.findViewById(R.id.device_brand)).setText(state.deviceProperties.get("brand"));
        ((TextView) rootView.findViewById(R.id.device_model)).setText(state.getModel());
        ((TextView) rootView.findViewById(R.id.device_year)).setText(state.deviceProperties.get("year"));
        // Firmware version
        {
            StringBuilder version = new StringBuilder();
            version.append(state.deviceProperties.get("firmwareversion"));
            if (state.firmwareStatus != FirmwareUpdateMsg.Status.NONE)
            {
                version.append(", ").append(getStringValue(state.firmwareStatus.getDescriptionId()));
            }
            ((TextView) rootView.findViewById(R.id.device_firmware)).setText(version.toString());
        }
        // Update button
        {
            final AppCompatImageButton b = rootView.findViewById(R.id.btn_firmware_update);
            b.setVisibility((state.firmwareStatus == FirmwareUpdateMsg.Status.NEW_VERSION ||
                    state.firmwareStatus == FirmwareUpdateMsg.Status.NEW_VERSION_FORCE) ?
                    View.VISIBLE : View.GONE);
            if (b.getVisibility() == View.VISIBLE)
            {
                setButtonEnabled(b, true);
            }
        }
        // Google cast version
        ((TextView) rootView.findViewById(R.id.google_cast_version)).setText(state.googleCastVersion);
    }

    final int[] deviceInfoLayout = new int[]{
            R.id.device_info_layout,
            R.id.device_info_divider
    };
    for (int layoutId : deviceInfoLayout)
    {
        rootView.findViewById(layoutId).setVisibility(isFnValid || isRiValid ? View.VISIBLE : View.GONE);
    }
}