| /* |
| * Copyright (C) 2014 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 androidx.appcompat.widget; |
| |
| import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP_PREFIX; |
| |
| import android.graphics.Rect; |
| import android.os.Build; |
| import android.util.Log; |
| import android.view.View; |
| |
| import androidx.annotation.RestrictTo; |
| import androidx.core.view.ViewCompat; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| |
| /** |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| public class ViewUtils { |
| private static final String TAG = "ViewUtils"; |
| |
| private static Method sComputeFitSystemWindowsMethod; |
| |
| static { |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) { |
| try { |
| sComputeFitSystemWindowsMethod = View.class.getDeclaredMethod( |
| "computeFitSystemWindows", Rect.class, Rect.class); |
| if (!sComputeFitSystemWindowsMethod.isAccessible()) { |
| sComputeFitSystemWindowsMethod.setAccessible(true); |
| } |
| } catch (NoSuchMethodException e) { |
| Log.d(TAG, "Could not find method computeFitSystemWindows. Oh well."); |
| } |
| } |
| } |
| |
| private ViewUtils() {} |
| |
| public static boolean isLayoutRtl(View view) { |
| return ViewCompat.getLayoutDirection(view) == ViewCompat.LAYOUT_DIRECTION_RTL; |
| } |
| |
| /** |
| * Allow calling the hidden method {@code computeFitSystemWindows(Rect, Rect)} through |
| * reflection on {@code view}. |
| */ |
| public static void computeFitSystemWindows(View view, Rect inoutInsets, Rect outLocalInsets) { |
| if (sComputeFitSystemWindowsMethod != null) { |
| try { |
| sComputeFitSystemWindowsMethod.invoke(view, inoutInsets, outLocalInsets); |
| } catch (Exception e) { |
| Log.d(TAG, "Could not invoke computeFitSystemWindows", e); |
| } |
| } |
| } |
| |
| /** |
| * Allow calling the hidden method {@code makeOptionalFitsSystem()} through reflection on |
| * {@code view}. |
| */ |
| public static void makeOptionalFitsSystemWindows(View view) { |
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { |
| try { |
| // We need to use getMethod() for makeOptionalFitsSystemWindows since both View |
| // and ViewGroup implement the method |
| Method method = view.getClass().getMethod("makeOptionalFitsSystemWindows"); |
| if (!method.isAccessible()) { |
| method.setAccessible(true); |
| } |
| method.invoke(view); |
| } catch (NoSuchMethodException e) { |
| Log.d(TAG, "Could not find method makeOptionalFitsSystemWindows. Oh well..."); |
| } catch (InvocationTargetException e) { |
| Log.d(TAG, "Could not invoke makeOptionalFitsSystemWindows", e); |
| } catch (IllegalAccessException e) { |
| Log.d(TAG, "Could not invoke makeOptionalFitsSystemWindows", e); |
| } |
| } |
| } |
| } |