1/* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.setupwizardlib.template; 18 19import android.content.Context; 20import android.content.res.TypedArray; 21import android.graphics.drawable.Drawable; 22import android.util.AttributeSet; 23import android.widget.ImageView; 24 25import com.android.setupwizardlib.R; 26import com.android.setupwizardlib.TemplateLayout; 27 28/** 29 * A {@link Mixin} for setting an icon on the template layout. 30 */ 31public class IconMixin implements Mixin { 32 33 private TemplateLayout mTemplateLayout; 34 35 /** 36 * @param layout The template layout that this Mixin is a part of. 37 * @param attrs XML attributes given to the layout. 38 * @param defStyleAttr The default style attribute as given to the constructor of the layout. 39 */ 40 public IconMixin(TemplateLayout layout, AttributeSet attrs, int defStyleAttr) { 41 mTemplateLayout = layout; 42 final Context context = layout.getContext(); 43 44 final TypedArray a = 45 context.obtainStyledAttributes(attrs, R.styleable.SuwIconMixin, defStyleAttr, 0); 46 47 final Drawable icon = a.getDrawable(R.styleable.SuwIconMixin_android_icon); 48 if (icon != null) { 49 setIcon(icon); 50 } 51 52 a.recycle(); 53 } 54 55 /** 56 * Sets the icon on this layout. The icon can also be set in XML using {@code android:icon}. 57 * 58 * @param icon A drawable icon. 59 */ 60 public void setIcon(Drawable icon) { 61 final ImageView iconView = getView(); 62 if (iconView != null) { 63 iconView.setImageDrawable(icon); 64 } 65 } 66 67 /** 68 * @return The icon previously set in {@link #setIcon(Drawable)} or {@code android:icon} 69 */ 70 public Drawable getIcon() { 71 final ImageView iconView = getView(); 72 return iconView != null ? iconView.getDrawable() : null; 73 } 74 75 /** 76 * @return The ImageView responsible for displaying the icon. 77 */ 78 protected ImageView getView() { 79 return (ImageView) mTemplateLayout.findManagedViewById(R.id.suw_layout_icon); 80 } 81} 82