1 /* 2 * Copyright (C) 2023 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 17 package com.android.intentresolver.contentpreview; 18 19 import android.animation.ObjectAnimator; 20 import android.animation.ValueAnimator; 21 import android.content.res.Resources; 22 import android.graphics.Bitmap; 23 import android.text.TextUtils; 24 import android.view.LayoutInflater; 25 import android.view.View; 26 import android.view.ViewGroup; 27 import android.view.animation.DecelerateInterpolator; 28 import android.widget.ImageView; 29 import android.widget.TextView; 30 31 import com.android.intentresolver.R; 32 import com.android.intentresolver.widget.ActionRow; 33 import com.android.intentresolver.widget.ScrollableImagePreviewView; 34 35 abstract class ContentPreviewUi { 36 private static final int IMAGE_FADE_IN_MILLIS = 150; 37 static final String TAG = "ChooserPreview"; 38 39 @ContentPreviewType getType()40 public abstract int getType(); 41 display( Resources resources, LayoutInflater layoutInflater, ViewGroup parent)42 public abstract ViewGroup display( 43 Resources resources, LayoutInflater layoutInflater, ViewGroup parent); 44 updateViewWithImage(ImageView imageView, Bitmap image)45 protected static void updateViewWithImage(ImageView imageView, Bitmap image) { 46 if (image == null) { 47 imageView.setVisibility(View.GONE); 48 return; 49 } 50 imageView.setVisibility(View.VISIBLE); 51 imageView.setAlpha(0.0f); 52 imageView.setImageBitmap(image); 53 54 ValueAnimator fadeAnim = ObjectAnimator.ofFloat(imageView, "alpha", 0.0f, 1.0f); 55 fadeAnim.setInterpolator(new DecelerateInterpolator(1.0f)); 56 fadeAnim.setDuration(IMAGE_FADE_IN_MILLIS); 57 fadeAnim.start(); 58 } 59 displayHeadline(ViewGroup layout, String headline)60 protected static void displayHeadline(ViewGroup layout, String headline) { 61 if (layout != null) { 62 TextView titleView = layout.findViewById(R.id.headline); 63 if (titleView != null) { 64 if (!TextUtils.isEmpty(headline)) { 65 titleView.setText(headline); 66 titleView.setVisibility(View.VISIBLE); 67 } else { 68 titleView.setVisibility(View.GONE); 69 } 70 } 71 } 72 } 73 displayModifyShareAction( ViewGroup layout, ChooserContentPreviewUi.ActionFactory actionFactory)74 protected static void displayModifyShareAction( 75 ViewGroup layout, 76 ChooserContentPreviewUi.ActionFactory actionFactory) { 77 ActionRow.Action modifyShareAction = actionFactory.getModifyShareAction(); 78 if (modifyShareAction != null && layout != null) { 79 TextView modifyShareView = layout.findViewById(R.id.reselection_action); 80 if (modifyShareView != null) { 81 modifyShareView.setText(modifyShareAction.getLabel()); 82 modifyShareView.setVisibility(View.VISIBLE); 83 modifyShareView.setOnClickListener(view -> modifyShareAction.getOnClicked().run()); 84 } 85 } 86 } 87 getPreviewType( MimeTypeClassifier typeClassifier, String mimeType)88 static ScrollableImagePreviewView.PreviewType getPreviewType( 89 MimeTypeClassifier typeClassifier, String mimeType) { 90 if (mimeType == null) { 91 return ScrollableImagePreviewView.PreviewType.File; 92 } 93 if (typeClassifier.isImageType(mimeType)) { 94 return ScrollableImagePreviewView.PreviewType.Image; 95 } 96 if (typeClassifier.isVideoType(mimeType)) { 97 return ScrollableImagePreviewView.PreviewType.Video; 98 } 99 return ScrollableImagePreviewView.PreviewType.File; 100 } 101 } 102