| /* |
| * Copyright (C) 2017 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.core.widget; |
| |
| import android.content.res.ColorStateList; |
| import android.graphics.PorterDuff; |
| import android.graphics.drawable.Drawable; |
| import android.os.Build; |
| import android.widget.ImageView; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| |
| /** |
| * Helper for accessing features in {@link ImageView}. |
| */ |
| public class ImageViewCompat { |
| /** |
| * Return the tint applied to the image drawable, if specified. |
| */ |
| @Nullable |
| public static ColorStateList getImageTintList(@NonNull ImageView view) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| return view.getImageTintList(); |
| } |
| return (view instanceof TintableImageSourceView) |
| ? ((TintableImageSourceView) view).getSupportImageTintList() |
| : null; |
| } |
| |
| /** |
| * Applies a tint to the image drawable. |
| */ |
| public static void setImageTintList(@NonNull ImageView view, |
| @Nullable ColorStateList tintList) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| view.setImageTintList(tintList); |
| |
| if (Build.VERSION.SDK_INT == 21) { |
| // Work around a bug in L that did not update the state of the image source |
| // after applying the tint |
| Drawable imageViewDrawable = view.getDrawable(); |
| boolean hasTint = (view.getImageTintList() != null) |
| && (view.getImageTintMode() != null); |
| if ((imageViewDrawable != null) && hasTint) { |
| if (imageViewDrawable.isStateful()) { |
| imageViewDrawable.setState(view.getDrawableState()); |
| } |
| view.setImageDrawable(imageViewDrawable); |
| } |
| } |
| } else if (view instanceof TintableImageSourceView) { |
| ((TintableImageSourceView) view).setSupportImageTintList(tintList); |
| } |
| } |
| |
| /** |
| * Return the blending mode used to apply the tint to the image drawable, if specified. |
| */ |
| @Nullable |
| public static PorterDuff.Mode getImageTintMode(@NonNull ImageView view) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| return view.getImageTintMode(); |
| } |
| return (view instanceof TintableImageSourceView) |
| ? ((TintableImageSourceView) view).getSupportImageTintMode() |
| : null; |
| } |
| |
| /** |
| * Specifies the blending mode used to apply the tint specified by |
| * {@link #setImageTintList(android.widget.ImageView, android.content.res.ColorStateList)} |
| * to the image drawable. The default mode is {@link PorterDuff.Mode#SRC_IN}. |
| */ |
| public static void setImageTintMode(@NonNull ImageView view, @Nullable PorterDuff.Mode mode) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| view.setImageTintMode(mode); |
| |
| if (Build.VERSION.SDK_INT == 21) { |
| // Work around a bug in L that did not update the state of the image source |
| // after applying the tint |
| Drawable imageViewDrawable = view.getDrawable(); |
| boolean hasTint = (view.getImageTintList() != null) |
| && (view.getImageTintMode() != null); |
| if ((imageViewDrawable != null) && hasTint) { |
| if (imageViewDrawable.isStateful()) { |
| imageViewDrawable.setState(view.getDrawableState()); |
| } |
| view.setImageDrawable(imageViewDrawable); |
| } |
| } |
| } else if (view instanceof TintableImageSourceView) { |
| ((TintableImageSourceView) view).setSupportImageTintMode(mode); |
| } |
| } |
| |
| private ImageViewCompat() {} |
| } |