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Provide some compatibility story for devs in the past

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They should be providing themes when resolving certain resources,
but they aren't anyway, so try to provide it free of charge, when
possible. Also, nothing is ever free.

Test: Open app that uses old/bad resource methods
Change-Id: Icd57aadf1202ddffb1dd73ab45119fae7e5d6130
Fixes: 35656110
This commit is contained in:
Jason Monk
2017-02-24 16:57:40 -05:00
parent 194f375979
commit bd9836496c
2 changed files with 88 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
core/java/android/app/ContextImpl.java
View File

@@ -38,6 +38,7 @@ import android.content.pm.IPackageManager;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.AssetManager;
import android.content.res.CompatResources;
import android.content.res.CompatibilityInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
@@ -49,6 +50,7 @@ import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Binder;
import android.os.Build;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.os.Debug;
import android.os.Environment;
@@ -1925,8 +1927,8 @@ class ContextImpl extends Context {
final int displayId = mDisplay != null
? mDisplay.getDisplayId() : Display.DEFAULT_DISPLAY;
c.mResources = createResources(mActivityToken, pi, displayId, null,
getDisplayAdjustments(displayId).getCompatibilityInfo());
c.setResources(createResources(mActivityToken, pi, displayId, null,
getDisplayAdjustments(displayId).getCompatibilityInfo()));
if (c.mResources != null) {
return c;
}
@@ -1962,8 +1964,8 @@ class ContextImpl extends Context {
final int displayId = mDisplay != null
? mDisplay.getDisplayId() : Display.DEFAULT_DISPLAY;
c.mResources = createResources(mActivityToken, pi, displayId, null,
getDisplayAdjustments(displayId).getCompatibilityInfo());
c.setResources(createResources(mActivityToken, pi, displayId, null,
getDisplayAdjustments(displayId).getCompatibilityInfo()));
if (c.mResources != null) {
return c;
}
@@ -1990,7 +1992,7 @@ class ContextImpl extends Context {
final int displayId = mDisplay != null
? mDisplay.getDisplayId() : Display.DEFAULT_DISPLAY;
context.mResources = ResourcesManager.getInstance().getResources(
context.setResources(ResourcesManager.getInstance().getResources(
mActivityToken,
mPackageInfo.getResDir(),
paths,
@@ -1999,7 +2001,7 @@ class ContextImpl extends Context {
displayId,
null,
mPackageInfo.getCompatibilityInfo(),
classLoader);
classLoader));
return context;
}
@@ -2013,8 +2015,8 @@ class ContextImpl extends Context {
mUser, mFlags, mClassLoader);
final int displayId = mDisplay != null ? mDisplay.getDisplayId() : Display.DEFAULT_DISPLAY;
context.mResources = createResources(mActivityToken, mPackageInfo, displayId,
overrideConfiguration, getDisplayAdjustments(displayId).getCompatibilityInfo());
context.setResources(createResources(mActivityToken, mPackageInfo, displayId,
overrideConfiguration, getDisplayAdjustments(displayId).getCompatibilityInfo()));
return context;
}
@@ -2028,8 +2030,8 @@ class ContextImpl extends Context {
mUser, mFlags, mClassLoader);
final int displayId = display.getDisplayId();
context.mResources = createResources(mActivityToken, mPackageInfo, displayId, null,
getDisplayAdjustments(displayId).getCompatibilityInfo());
context.setResources(createResources(mActivityToken, mPackageInfo, displayId, null,
getDisplayAdjustments(displayId).getCompatibilityInfo()));
context.mDisplay = display;
return context;
}
@@ -2136,7 +2138,7 @@ class ContextImpl extends Context {
LoadedApk packageInfo = new LoadedApk(mainThread);
ContextImpl context = new ContextImpl(null, mainThread, packageInfo, null, null, 0,
null);
context.mResources = packageInfo.getResources();
context.setResources(packageInfo.getResources());
context.mResources.updateConfiguration(context.mResourcesManager.getConfiguration(),
context.mResourcesManager.getDisplayMetrics());
return context;
@@ -2146,7 +2148,7 @@ class ContextImpl extends Context {
if (packageInfo == null) throw new IllegalArgumentException("packageInfo");
ContextImpl context = new ContextImpl(null, mainThread, packageInfo, null, null, 0,
null);
context.mResources = packageInfo.getResources();
context.setResources(packageInfo.getResources());
return context;
}
@@ -2185,7 +2187,7 @@ class ContextImpl extends Context {
// Create the base resources for which all configuration contexts for this Activity
// will be rebased upon.
context.mResources = resourcesManager.createBaseActivityResources(activityToken,
context.setResources(resourcesManager.createBaseActivityResources(activityToken,
packageInfo.getResDir(),
splitDirs,
packageInfo.getOverlayDirs(),
@@ -2193,7 +2195,7 @@ class ContextImpl extends Context {
displayId,
overrideConfiguration,
compatInfo,
classLoader);
classLoader));
context.mDisplay = resourcesManager.getAdjustedDisplay(displayId,
context.getResources());
return context;
@@ -2232,7 +2234,7 @@ class ContextImpl extends Context {
if (container != null) {
mBasePackageName = container.mBasePackageName;
mOpPackageName = container.mOpPackageName;
mResources = container.mResources;
setResources(container.mResources);
mDisplay = container.mDisplay;
} else {
mBasePackageName = packageInfo.mPackageName;
@@ -2251,6 +2253,14 @@ class ContextImpl extends Context {
mContentResolver = new ApplicationContentResolver(this, mainThread, user);
}
void setResources(Resources r) {
if (mPackageInfo.getTargetSdkVersion() < VERSION_CODES.O) {
mResources = new CompatResources(r, this);
} else {
mResources = r;
}
}
void installSystemApplicationInfo(ApplicationInfo info, ClassLoader classLoader) {
mPackageInfo.installSystemApplicationInfo(info, classLoader);
}

63
core/java/android/content/res/CompatResources.java Normal file
View File

@@ -0,0 +1,63 @@
/*
* 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 android.content.res;
import android.annotation.ColorRes;
import android.annotation.DrawableRes;
import android.content.Context;
import android.graphics.drawable.Drawable;
import java.lang.ref.WeakReference;
/**
* Version of resources generated for apps targeting <26.
* @hide
*/
public class CompatResources extends Resources {
private final WeakReference<Context> mContext;
public CompatResources(Resources base, Context context) {
super(base.getClassLoader());
setImpl(base.getImpl());
mContext = new WeakReference<>(context);
}
@Override
public Drawable getDrawable(@DrawableRes int id) throws NotFoundException {
return getDrawable(id, getTheme());
}
@Override
public Drawable getDrawableForDensity(@DrawableRes int id, int density)
throws NotFoundException {
return getDrawableForDensity(id, density, getTheme());
}
@Override
public int getColor(@ColorRes int id) throws NotFoundException {
return getColor(id, getTheme());
}
@Override
public ColorStateList getColorStateList(@ColorRes int id) throws NotFoundException {
return getColorStateList(id, getTheme());
}
private Theme getTheme() {
Context c = mContext.get();
return c != null ? c.getTheme() : null;
}
}