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/*
* 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;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.AttributeSet;
import android.util.TypedValue;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.annotation.RestrictTo;
import androidx.annotation.StyleableRes;
import androidx.appcompat.content.res.AppCompatResources;
import androidx.core.content.res.ResourcesCompat;
/**
* A class that wraps a {@link android.content.res.TypedArray} and provides the same public API
* surface. The purpose of this class is so that we can intercept calls to new APIs.
*
* @hide
*/
@RestrictTo(LIBRARY_GROUP)
public class TintTypedArray {
private final Context mContext;
private final TypedArray mWrapped;
private TypedValue mTypedValue;
public static TintTypedArray obtainStyledAttributes(Context context, AttributeSet set,
int[] attrs) {
return new TintTypedArray(context, context.obtainStyledAttributes(set, attrs));
}
public static TintTypedArray obtainStyledAttributes(Context context, AttributeSet set,
int[] attrs, int defStyleAttr, int defStyleRes) {
return new TintTypedArray(context,
context.obtainStyledAttributes(set, attrs, defStyleAttr, defStyleRes));
}
public static TintTypedArray obtainStyledAttributes(Context context, int resid, int[] attrs) {
return new TintTypedArray(context, context.obtainStyledAttributes(resid, attrs));
}
private TintTypedArray(Context context, TypedArray array) {
mContext = context;
mWrapped = array;
}
public Drawable getDrawable(int index) {
if (mWrapped.hasValue(index)) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId != 0) {
return AppCompatResources.getDrawable(mContext, resourceId);
}
}
return mWrapped.getDrawable(index);
}
public Drawable getDrawableIfKnown(int index) {
if (mWrapped.hasValue(index)) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId != 0) {
return AppCompatDrawableManager.get().getDrawable(mContext, resourceId, true);
}
}
return null;
}
/**
* Retrieve the Typeface for the attribute at index.
*
* This method will throw an exception if the attribute is defined but is
* not a font.
*
* @param index Index of attribute to retrieve.
* @param style A style value used for selecting best match font from the list of family. Note
* that this value will be ignored if the platform supports font family (API 24 or later).
* @param fontCallback A callback to receive async fetching of this font. If async loading is
* specified in XML, this callback will be triggered.
*
* @return Typeface for the attribute, or {@code null} if not defined.
* @throws RuntimeException if the TypedArray has already been recycled.
* @throws UnsupportedOperationException if the attribute is defined but is
* not a font resource.
*/
@Nullable
public Typeface getFont(@StyleableRes int index, int style,
@Nullable ResourcesCompat.FontCallback fontCallback) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId == 0) {
return null;
}
if (mTypedValue == null) {
mTypedValue = new TypedValue();
}
return ResourcesCompat.getFont(mContext, resourceId, mTypedValue, style, fontCallback);
}
public int length() {
return mWrapped.length();
}
public int getIndexCount() {
return mWrapped.getIndexCount();
}
public int getIndex(int at) {
return mWrapped.getIndex(at);
}
public Resources getResources() {
return mWrapped.getResources();
}
public CharSequence getText(int index) {
return mWrapped.getText(index);
}
public String getString(int index) {
return mWrapped.getString(index);
}
public String getNonResourceString(int index) {
return mWrapped.getNonResourceString(index);
}
public boolean getBoolean(int index, boolean defValue) {
return mWrapped.getBoolean(index, defValue);
}
public int getInt(int index, int defValue) {
return mWrapped.getInt(index, defValue);
}
public float getFloat(int index, float defValue) {
return mWrapped.getFloat(index, defValue);
}
public int getColor(int index, int defValue) {
return mWrapped.getColor(index, defValue);
}
public ColorStateList getColorStateList(int index) {
if (mWrapped.hasValue(index)) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId != 0) {
final ColorStateList value =
AppCompatResources.getColorStateList(mContext, resourceId);
if (value != null) {
return value;
}
}
}
return mWrapped.getColorStateList(index);
}
public int getInteger(int index, int defValue) {
return mWrapped.getInteger(index, defValue);
}
public float getDimension(int index, float defValue) {
return mWrapped.getDimension(index, defValue);
}
public int getDimensionPixelOffset(int index, int defValue) {
return mWrapped.getDimensionPixelOffset(index, defValue);
}
public int getDimensionPixelSize(int index, int defValue) {
return mWrapped.getDimensionPixelSize(index, defValue);
}
public int getLayoutDimension(int index, String name) {
return mWrapped.getLayoutDimension(index, name);
}
public int getLayoutDimension(int index, int defValue) {
return mWrapped.getLayoutDimension(index, defValue);
}
public float getFraction(int index, int base, int pbase, float defValue) {
return mWrapped.getFraction(index, base, pbase, defValue);
}
public int getResourceId(int index, int defValue) {
return mWrapped.getResourceId(index, defValue);
}
public CharSequence[] getTextArray(int index) {
return mWrapped.getTextArray(index);
}
public boolean getValue(int index, TypedValue outValue) {
return mWrapped.getValue(index, outValue);
}
public int getType(int index) {
if (Build.VERSION.SDK_INT >= 21) {
return mWrapped.getType(index);
} else {
if (mTypedValue == null) {
mTypedValue = new TypedValue();
}
mWrapped.getValue(index, mTypedValue);
return mTypedValue.type;
}
}
public boolean hasValue(int index) {
return mWrapped.hasValue(index);
}
public TypedValue peekValue(int index) {
return mWrapped.peekValue(index);
}
public String getPositionDescription() {
return mWrapped.getPositionDescription();
}
public void recycle() {
mWrapped.recycle();
}
@RequiresApi(21)
public int getChangingConfigurations() {
return mWrapped.getChangingConfigurations();
}
}
Java程序
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254行
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/*
* 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;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.AttributeSet;
import android.util.TypedValue;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.annotation.RestrictTo;
import androidx.annotation.StyleableRes;
import androidx.appcompat.content.res.AppCompatResources;
import androidx.core.content.res.ResourcesCompat;
/**
* A class that wraps a {@link android.content.res.TypedArray} and provides the same public API
* surface. The purpose of this class is so that we can intercept calls to new APIs.
*
* @hide
*/
@RestrictTo(LIBRARY_GROUP)
public class TintTypedArray {
private final Context mContext;
private final TypedArray mWrapped;
private TypedValue mTypedValue;
public static TintTypedArray obtainStyledAttributes(Context context, AttributeSet set,
int[] attrs) {
return new TintTypedArray(context, context.obtainStyledAttributes(set, attrs));
}
public static TintTypedArray obtainStyledAttributes(Context context, AttributeSet set,
int[] attrs, int defStyleAttr, int defStyleRes) {
return new TintTypedArray(context,
context.obtainStyledAttributes(set, attrs, defStyleAttr, defStyleRes));
}
public static TintTypedArray obtainStyledAttributes(Context context, int resid, int[] attrs) {
return new TintTypedArray(context, context.obtainStyledAttributes(resid, attrs));
}
private TintTypedArray(Context context, TypedArray array) {
mContext = context;
mWrapped = array;
}
public Drawable getDrawable(int index) {
if (mWrapped.hasValue(index)) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId != 0) {
return AppCompatResources.getDrawable(mContext, resourceId);
}
}
return mWrapped.getDrawable(index);
}
public Drawable getDrawableIfKnown(int index) {
if (mWrapped.hasValue(index)) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId != 0) {
return AppCompatDrawableManager.get().getDrawable(mContext, resourceId, true);
}
}
return null;
}
/**
* Retrieve the Typeface for the attribute at index.
*
* This method will throw an exception if the attribute is defined but is
* not a font.
*
* @param index Index of attribute to retrieve.
* @param style A style value used for selecting best match font from the list of family. Note
* that this value will be ignored if the platform supports font family (API 24 or later).
* @param fontCallback A callback to receive async fetching of this font. If async loading is
* specified in XML, this callback will be triggered.
*
* @return Typeface for the attribute, or {@code null} if not defined.
* @throws RuntimeException if the TypedArray has already been recycled.
* @throws UnsupportedOperationException if the attribute is defined but is
* not a font resource.
*/
@Nullable
public Typeface getFont(@StyleableRes int index, int style,
@Nullable ResourcesCompat.FontCallback fontCallback) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId == 0) {
return null;
}
if (mTypedValue == null) {
mTypedValue = new TypedValue();
}
return ResourcesCompat.getFont(mContext, resourceId, mTypedValue, style, fontCallback);
}
public int length() {
return mWrapped.length();
}
public int getIndexCount() {
return mWrapped.getIndexCount();
}
public int getIndex(int at) {
return mWrapped.getIndex(at);
}
public Resources getResources() {
return mWrapped.getResources();
}
public CharSequence getText(int index) {
return mWrapped.getText(index);
}
public String getString(int index) {
return mWrapped.getString(index);
}
public String getNonResourceString(int index) {
return mWrapped.getNonResourceString(index);
}
public boolean getBoolean(int index, boolean defValue) {
return mWrapped.getBoolean(index, defValue);
}
public int getInt(int index, int defValue) {
return mWrapped.getInt(index, defValue);
}
public float getFloat(int index, float defValue) {
return mWrapped.getFloat(index, defValue);
}
public int getColor(int index, int defValue) {
return mWrapped.getColor(index, defValue);
}
public ColorStateList getColorStateList(int index) {
if (mWrapped.hasValue(index)) {
final int resourceId = mWrapped.getResourceId(index, 0);
if (resourceId != 0) {
final ColorStateList value =
AppCompatResources.getColorStateList(mContext, resourceId);
if (value != null) {
return value;
}
}
}
return mWrapped.getColorStateList(index);
}
public int getInteger(int index, int defValue) {
return mWrapped.getInteger(index, defValue);
}
public float getDimension(int index, float defValue) {
return mWrapped.getDimension(index, defValue);
}
public int getDimensionPixelOffset(int index, int defValue) {
return mWrapped.getDimensionPixelOffset(index, defValue);
}
public int getDimensionPixelSize(int index, int defValue) {
return mWrapped.getDimensionPixelSize(index, defValue);
}
public int getLayoutDimension(int index, String name) {
return mWrapped.getLayoutDimension(index, name);
}
public int getLayoutDimension(int index, int defValue) {
return mWrapped.getLayoutDimension(index, defValue);
}
public float getFraction(int index, int base, int pbase, float defValue) {
return mWrapped.getFraction(index, base, pbase, defValue);
}
public int getResourceId(int index, int defValue) {
return mWrapped.getResourceId(index, defValue);
}
public CharSequence[] getTextArray(int index) {
return mWrapped.getTextArray(index);
}
public boolean getValue(int index, TypedValue outValue) {
return mWrapped.getValue(index, outValue);
}
public int getType(int index) {
if (Build.VERSION.SDK_INT >= 21) {
return mWrapped.getType(index);
} else {
if (mTypedValue == null) {
mTypedValue = new TypedValue();
}
mWrapped.getValue(index, mTypedValue);
return mTypedValue.type;
}
}
public boolean hasValue(int index) {
return mWrapped.hasValue(index);
}
public TypedValue peekValue(int index) {
return mWrapped.peekValue(index);
}
public String getPositionDescription() {
return mWrapped.getPositionDescription();
}
public void recycle() {
mWrapped.recycle();
}
@RequiresApi(21)
public int getChangingConfigurations() {
return mWrapped.getChangingConfigurations();
}
}
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