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 17 package androidx.transition; 18 19 import android.annotation.SuppressLint; 20 import android.util.Log; 21 import android.view.View; 22 23 import androidx.annotation.RequiresApi; 24 25 import java.lang.reflect.InvocationTargetException; 26 import java.lang.reflect.Method; 27 28 @RequiresApi(22) 29 class ViewUtilsApi22 extends ViewUtilsApi21 { 30 31 private static final String TAG = "ViewUtilsApi22"; 32 33 private static Method sSetLeftTopRightBottomMethod; 34 private static boolean sSetLeftTopRightBottomMethodFetched; 35 36 @Override setLeftTopRightBottom(View v, int left, int top, int right, int bottom)37 public void setLeftTopRightBottom(View v, int left, int top, int right, int bottom) { 38 fetchSetLeftTopRightBottomMethod(); 39 if (sSetLeftTopRightBottomMethod != null) { 40 try { 41 sSetLeftTopRightBottomMethod.invoke(v, left, top, right, bottom); 42 } catch (IllegalAccessException e) { 43 // Do nothing 44 } catch (InvocationTargetException e) { 45 throw new RuntimeException(e.getCause()); 46 } 47 } 48 } 49 50 @SuppressLint("PrivateApi") fetchSetLeftTopRightBottomMethod()51 private void fetchSetLeftTopRightBottomMethod() { 52 if (!sSetLeftTopRightBottomMethodFetched) { 53 try { 54 sSetLeftTopRightBottomMethod = View.class.getDeclaredMethod("setLeftTopRightBottom", 55 int.class, int.class, int.class, int.class); 56 sSetLeftTopRightBottomMethod.setAccessible(true); 57 } catch (NoSuchMethodException e) { 58 Log.i(TAG, "Failed to retrieve setLeftTopRightBottom method", e); 59 } 60 sSetLeftTopRightBottomMethodFetched = true; 61 } 62 } 63 64 } 65 66