| /* |
| * Copyright (C) 2015 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.content.Context; |
| import android.content.res.ColorStateList; |
| import android.graphics.Bitmap; |
| import android.graphics.PorterDuff; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Build; |
| import android.util.AttributeSet; |
| import android.widget.ImageView; |
| |
| import androidx.annotation.DrawableRes; |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import androidx.annotation.RestrictTo; |
| import androidx.core.view.TintableBackgroundView; |
| import androidx.core.widget.ImageViewCompat; |
| import androidx.core.widget.TintableImageSourceView; |
| |
| /** |
| * A {@link ImageView} which supports compatible features on older versions of the platform, |
| * including: |
| * <ul> |
| * <li>Allows dynamic tint of its background via the background tint methods in |
| * {@link androidx.core.view.ViewCompat}.</li> |
| * <li>Allows setting of the background tint using |
| * {@link androidx.appcompat.R.attr#backgroundTint} and |
| * {@link androidx.appcompat.R.attr#backgroundTintMode}.</li> |
| * <li>Allows dynamic tint of its image via the image tint methods in |
| * {@link ImageViewCompat}.</li> |
| * <li>Allows setting of the image tint using {@link androidx.appcompat.R.attr#tint} and |
| * {@link androidx.appcompat.R.attr#tintMode}.</li> |
| * </ul> |
| * |
| * <p>This will automatically be used when you use {@link ImageView} in your layouts |
| * and the top-level activity / dialog is provided by |
| * <a href="{@docRoot}topic/libraries/support-library/packages.html#v7-appcompat">appcompat</a>. |
| * You should only need to manually use this class when writing custom views.</p> |
| */ |
| public class AppCompatImageView extends ImageView implements TintableBackgroundView, |
| TintableImageSourceView { |
| |
| private final AppCompatBackgroundHelper mBackgroundTintHelper; |
| private final AppCompatImageHelper mImageHelper; |
| |
| public AppCompatImageView(@NonNull Context context) { |
| this(context, null); |
| } |
| |
| public AppCompatImageView(@NonNull Context context, @Nullable AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public AppCompatImageView( |
| @NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) { |
| super(TintContextWrapper.wrap(context), attrs, defStyleAttr); |
| |
| ThemeUtils.checkAppCompatTheme(this, getContext()); |
| |
| mBackgroundTintHelper = new AppCompatBackgroundHelper(this); |
| mBackgroundTintHelper.loadFromAttributes(attrs, defStyleAttr); |
| |
| mImageHelper = new AppCompatImageHelper(this); |
| mImageHelper.loadFromAttributes(attrs, defStyleAttr); |
| } |
| |
| /** |
| * Sets a drawable as the content of this ImageView. |
| * |
| * <p>Allows the use of vector drawables when running on older versions of the platform.</p> |
| * |
| * @param resId the resource identifier of the drawable |
| * @see ImageView#setImageResource(int) |
| * {@link androidx.appcompat.R.attr#srcCompat} |
| */ |
| @Override |
| public void setImageResource(@DrawableRes int resId) { |
| if (mImageHelper != null) { |
| // Intercept this call and instead retrieve the Drawable via the image helper |
| mImageHelper.setImageResource(resId); |
| } |
| } |
| |
| @Override |
| public void setImageDrawable(@Nullable Drawable drawable) { |
| super.setImageDrawable(drawable); |
| if (mImageHelper != null) { |
| mImageHelper.applySupportImageTint(); |
| } |
| } |
| |
| @Override |
| public void setImageBitmap(Bitmap bm) { |
| super.setImageBitmap(bm); |
| if (mImageHelper != null) { |
| mImageHelper.applySupportImageTint(); |
| } |
| } |
| |
| @Override |
| public void setImageURI(@Nullable Uri uri) { |
| super.setImageURI(uri); |
| if (mImageHelper != null) { |
| mImageHelper.applySupportImageTint(); |
| } |
| } |
| |
| @Override |
| public void setBackgroundResource(@DrawableRes int resId) { |
| super.setBackgroundResource(resId); |
| if (mBackgroundTintHelper != null) { |
| mBackgroundTintHelper.onSetBackgroundResource(resId); |
| } |
| } |
| |
| @Override |
| public void setBackgroundDrawable(@Nullable Drawable background) { |
| super.setBackgroundDrawable(background); |
| if (mBackgroundTintHelper != null) { |
| mBackgroundTintHelper.onSetBackgroundDrawable(background); |
| } |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.view.ViewCompat#setBackgroundTintList(android.view.View, ColorStateList)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| public void setSupportBackgroundTintList(@Nullable ColorStateList tint) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| return; |
| } |
| if (mBackgroundTintHelper != null) { |
| mBackgroundTintHelper.setSupportBackgroundTintList(tint); |
| } |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.view.ViewCompat#getBackgroundTintList(android.view.View)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| @Nullable |
| public ColorStateList getSupportBackgroundTintList() { |
| return mBackgroundTintHelper != null |
| ? mBackgroundTintHelper.getSupportBackgroundTintList() : null; |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.view.ViewCompat#setBackgroundTintMode(android.view.View, PorterDuff.Mode)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| public void setSupportBackgroundTintMode(@Nullable PorterDuff.Mode tintMode) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| return; |
| } |
| if (mBackgroundTintHelper != null) { |
| mBackgroundTintHelper.setSupportBackgroundTintMode(tintMode); |
| } |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.view.ViewCompat#getBackgroundTintMode(android.view.View)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| @Nullable |
| public PorterDuff.Mode getSupportBackgroundTintMode() { |
| return mBackgroundTintHelper != null |
| ? mBackgroundTintHelper.getSupportBackgroundTintMode() : null; |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.widget.ImageViewCompat#setImageTintList(ImageView, ColorStateList)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| public void setSupportImageTintList(@Nullable ColorStateList tint) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| return; |
| } |
| if (mImageHelper != null) { |
| mImageHelper.setSupportImageTintList(tint); |
| } |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.widget.ImageViewCompat#getImageTintList(ImageView)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| @Nullable |
| public ColorStateList getSupportImageTintList() { |
| return mImageHelper != null |
| ? mImageHelper.getSupportImageTintList() : null; |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.widget.ImageViewCompat#setImageTintMode(ImageView, PorterDuff.Mode)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| public void setSupportImageTintMode(@Nullable PorterDuff.Mode tintMode) { |
| if (Build.VERSION.SDK_INT >= 21) { |
| return; |
| } |
| if (mImageHelper != null) { |
| mImageHelper.setSupportImageTintMode(tintMode); |
| } |
| } |
| |
| /** |
| * This should be accessed via |
| * {@link androidx.core.widget.ImageViewCompat#getImageTintMode(ImageView)} |
| * |
| * @hide |
| */ |
| @RestrictTo(LIBRARY_GROUP_PREFIX) |
| @Override |
| @Nullable |
| public PorterDuff.Mode getSupportImageTintMode() { |
| return mImageHelper != null |
| ? mImageHelper.getSupportImageTintMode() : null; |
| } |
| |
| @Override |
| protected void drawableStateChanged() { |
| super.drawableStateChanged(); |
| if (mBackgroundTintHelper != null) { |
| mBackgroundTintHelper.applySupportBackgroundTint(); |
| } |
| if (mImageHelper != null) { |
| mImageHelper.applySupportImageTint(); |
| } |
| } |
| |
| @Override |
| public boolean hasOverlappingRendering() { |
| return mImageHelper.hasOverlappingRendering() && super.hasOverlappingRendering(); |
| } |
| } |