| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.setupwizardlib.template; |
| |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.graphics.drawable.Drawable; |
| import android.support.annotation.DrawableRes; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.ImageView; |
| |
| import com.android.setupwizardlib.R; |
| import com.android.setupwizardlib.TemplateLayout; |
| |
| /** |
| * A {@link Mixin} for setting an icon on the template layout. |
| */ |
| public class IconMixin implements Mixin { |
| |
| private TemplateLayout mTemplateLayout; |
| |
| /** |
| * @param layout The template layout that this Mixin is a part of. |
| * @param attrs XML attributes given to the layout. |
| * @param defStyleAttr The default style attribute as given to the constructor of the layout. |
| */ |
| public IconMixin(TemplateLayout layout, AttributeSet attrs, int defStyleAttr) { |
| mTemplateLayout = layout; |
| final Context context = layout.getContext(); |
| |
| final TypedArray a = |
| context.obtainStyledAttributes(attrs, R.styleable.SuwIconMixin, defStyleAttr, 0); |
| |
| final @DrawableRes int icon = a.getResourceId(R.styleable.SuwIconMixin_android_icon, 0); |
| if (icon != 0) { |
| setIcon(icon); |
| } |
| |
| a.recycle(); |
| } |
| |
| /** |
| * Sets the icon on this layout. The icon can also be set in XML using {@code android:icon}. |
| * |
| * @param icon A drawable icon. |
| */ |
| public void setIcon(Drawable icon) { |
| final ImageView iconView = getView(); |
| if (iconView != null) { |
| iconView.setImageDrawable(icon); |
| iconView.setVisibility(icon != null ? View.VISIBLE : View.GONE); |
| } |
| } |
| |
| /** |
| * Sets the icon on this layout. The icon can also be set in XML using {@code android:icon}. |
| * |
| * @param icon A drawable icon resource. |
| */ |
| public void setIcon(@DrawableRes int icon) { |
| final ImageView iconView = getView(); |
| if (iconView != null) { |
| // Note: setImageResource on the ImageView is overridden in AppCompatImageView for |
| // support lib users, which enables vector drawable compat to work on versions pre-L. |
| iconView.setImageResource(icon); |
| iconView.setVisibility(icon != 0 ? View.VISIBLE : View.GONE); |
| } |
| } |
| |
| /** |
| * @return The icon previously set in {@link #setIcon(Drawable)} or {@code android:icon} |
| */ |
| public Drawable getIcon() { |
| final ImageView iconView = getView(); |
| return iconView != null ? iconView.getDrawable() : null; |
| } |
| |
| /** |
| * Sets the content description of the icon view |
| */ |
| public void setContentDescription(CharSequence description) { |
| final ImageView iconView = getView(); |
| if (iconView != null) { |
| iconView.setContentDescription(description); |
| } |
| } |
| |
| /** |
| * @return The content description of the icon view |
| */ |
| public CharSequence getContentDescription() { |
| final ImageView iconView = getView(); |
| return iconView != null ? iconView.getContentDescription() : null; |
| } |
| |
| /** |
| * @return The ImageView responsible for displaying the icon. |
| */ |
| protected ImageView getView() { |
| return (ImageView) mTemplateLayout.findManagedViewById(R.id.suw_layout_icon); |
| } |
| } |