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.example.android.support.transition.widget; 18 19import android.graphics.Matrix; 20import android.os.Bundle; 21import android.view.View; 22import android.view.ViewGroup; 23import android.widget.ImageView; 24 25import androidx.transition.ChangeImageTransform; 26import androidx.transition.Transition; 27import androidx.transition.TransitionManager; 28 29import com.example.android.support.transition.R; 30 31/** 32 * This demonstrates basic usage of the ChangeImageTransform Transition. 33 */ 34public class ChangeImageTransformUsage extends TransitionUsageBase { 35 36 private ViewGroup mRoot; 37 private ImageView mPhoto; 38 39 private static final Transition TRANSITION = new ChangeImageTransform(); 40 41 @Override 42 int getLayoutResId() { 43 return R.layout.image_transform; 44 } 45 46 @Override 47 protected void onCreate(Bundle savedInstanceState) { 48 super.onCreate(savedInstanceState); 49 mRoot = findViewById(R.id.container); 50 mPhoto = findViewById(R.id.photo); 51 final View.OnClickListener listener = new View.OnClickListener() { 52 @Override 53 public void onClick(View v) { 54 TransitionManager.beginDelayedTransition(mRoot, TRANSITION); 55 switch (v.getId()) { 56 case R.id.fit_xy: 57 mPhoto.setScaleType(ImageView.ScaleType.FIT_XY); 58 break; 59 case R.id.center: 60 mPhoto.setScaleType(ImageView.ScaleType.CENTER); 61 break; 62 case R.id.center_crop: 63 mPhoto.setScaleType(ImageView.ScaleType.CENTER_CROP); 64 break; 65 case R.id.fit_start: 66 mPhoto.setScaleType(ImageView.ScaleType.FIT_START); 67 break; 68 case R.id.fit_end: 69 mPhoto.setScaleType(ImageView.ScaleType.FIT_END); 70 break; 71 case R.id.matrix: 72 mPhoto.setScaleType(ImageView.ScaleType.MATRIX); 73 final Matrix matrix = new Matrix(); 74 matrix.setRotate(45.f); 75 matrix.postTranslate(200, 10); 76 mPhoto.setImageMatrix(matrix); 77 break; 78 } 79 } 80 }; 81 findViewById(R.id.fit_xy).setOnClickListener(listener); 82 findViewById(R.id.center).setOnClickListener(listener); 83 findViewById(R.id.center_crop).setOnClickListener(listener); 84 findViewById(R.id.fit_start).setOnClickListener(listener); 85 findViewById(R.id.fit_end).setOnClickListener(listener); 86 findViewById(R.id.matrix).setOnClickListener(listener); 87 } 88 89} 90