androidx.appcompat.widget.AppCompatImageButton#setVisibility ( )源码实例Demo

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);
}
 

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);
    }
}
 

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);
    }
}