Add vector support
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/*
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* Copyright (C) 2015 Hippo Seven
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.content.res;
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import android.content.Context;
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import android.graphics.drawable.ColorDrawable;
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import android.graphics.drawable.Drawable;
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import android.support.v4.util.LongSparseArray;
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import android.util.AttributeSet;
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import android.util.TypedValue;
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import android.util.Xml;
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import com.hippo.drawable.AnimatedVectorDrawable;
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import com.hippo.drawable.VectorDrawable;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.lang.ref.WeakReference;
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/**
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* It is a wrap
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*/
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public class VectorResources extends Resources {
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private static final String TAG = VectorResources.class.getSimpleName();
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private Context mContext;
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private Resources mBase;
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// These are protected by mAccessLock.
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/*package*/ final Object mAccessLock = new Object();
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/*package*/ final LongSparseArray<WeakReference<Drawable.ConstantState> > mDrawableCache
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= new LongSparseArray<WeakReference<Drawable.ConstantState> >(0);
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/*package*/ final LongSparseArray<WeakReference<Drawable.ConstantState> > mColorDrawableCache
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= new LongSparseArray<WeakReference<Drawable.ConstantState> >(0);
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public VectorResources(Context context, Resources res) {
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super(res.getAssets(), res.getDisplayMetrics(), res.getConfiguration());
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mContext = context;
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mBase = res;
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}
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public boolean isBase(Resources res) {
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return mBase == res;
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}
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@Override
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Drawable loadDrawable(TypedValue value, int id)
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throws NotFoundException {
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boolean isColorDrawable = false;
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if (value.type >= TypedValue.TYPE_FIRST_COLOR_INT &&
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value.type <= TypedValue.TYPE_LAST_COLOR_INT) {
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isColorDrawable = true;
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}
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final long key = isColorDrawable ? value.data :
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(((long) value.assetCookie) << 32) | value.data;
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Drawable dr = getCachedDrawable(isColorDrawable ? mColorDrawableCache : mDrawableCache, key);
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if (dr != null) {
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return dr;
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}
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if (isColorDrawable) {
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dr = new ColorDrawable(value.data);
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}
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if (dr == null) {
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if (value.string == null) {
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throw new NotFoundException(
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"Resource is not a Drawable (color or path): " + value);
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}
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String file = value.string.toString();
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if (file.endsWith(".xml")) {
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// Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, file);
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try {
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XmlResourceParser rp = getXml(id);
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// XmlResourceParser rp = loadXmlResourceParser(
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// file, id, value.assetCookie, "drawable");
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dr = createDrawableFromXml(rp);
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rp.close();
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} catch (Exception e) {
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// Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
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NotFoundException rnf = new NotFoundException(
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"File " + file + " from drawable resource ID #0x"
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+ Integer.toHexString(id));
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rnf.initCause(e);
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throw rnf;
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}
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// Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
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} else {
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// Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, file);
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try {
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InputStream is = openRawResource(id, value);
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//InputStream is = mAssets.openNonAsset(
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// value.assetCookie, file, AssetManager.ACCESS_STREAMING);
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// System.out.println("Opened file " + file + ": " + is);
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dr = Drawable.createFromResourceStream(this, value, is,
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file, null);
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is.close();
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// System.out.println("Created stream: " + dr);
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} catch (Exception e) {
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// Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
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NotFoundException rnf = new NotFoundException(
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"File " + file + " from drawable resource ID #0x"
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+ Integer.toHexString(id));
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rnf.initCause(e);
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throw rnf;
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}
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// Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
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}
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}
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Drawable.ConstantState cs;
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if (dr != null) {
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dr.setChangingConfigurations(value.changingConfigurations);
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cs = dr.getConstantState();
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if (cs != null) {
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synchronized (mAccessLock) {
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//Log.i(TAG, "Saving cached drawable @ #" +
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// Integer.toHexString(key.intValue())
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// + " in " + this + ": " + cs);
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if (isColorDrawable) {
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mColorDrawableCache.put(key, new WeakReference<Drawable.ConstantState>(cs));
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} else {
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mDrawableCache.put(key, new WeakReference<Drawable.ConstantState>(cs));
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}
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}
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}
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}
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return dr;
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}
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private Drawable getCachedDrawable(
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LongSparseArray<WeakReference<Drawable.ConstantState>> drawableCache,
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long key) {
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synchronized (mAccessLock) {
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WeakReference<Drawable.ConstantState> wr = drawableCache.get(key);
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if (wr != null) { // we have the key
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Drawable.ConstantState entry = wr.get();
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if (entry != null) {
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//Log.i(TAG, "Returning cached drawable @ #" +
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// Integer.toHexString(((Integer)key).intValue())
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// + " in " + this + ": " + entry);
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return entry.newDrawable(this);
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}
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else { // our entry has been purged
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drawableCache.delete(key);
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}
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}
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}
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return null;
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}
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private Drawable createDrawableFromXml(XmlResourceParser parser)
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throws XmlPullParserException, IOException {
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AttributeSet attrs = Xml.asAttributeSet(parser);
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int type;
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while ((type=parser.next()) != XmlPullParser.START_TAG &&
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type != XmlPullParser.END_DOCUMENT) {
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// Empty loop
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}
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if (type != XmlPullParser.START_TAG) {
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throw new XmlPullParserException("No start tag found");
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}
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Drawable drawable = createDrawableFromXmlInner(parser, attrs);
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if (drawable == null) {
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throw new RuntimeException("Unknown initial tag: " + parser.getName());
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}
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return drawable;
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}
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private Drawable createDrawableFromXmlInner(XmlPullParser parser, AttributeSet attrs)
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throws XmlPullParserException, IOException {
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final Drawable drawable;
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final String name = parser.getName();
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switch (name) {
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case "vector":
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VectorDrawable vectorDrawable = new VectorDrawable();
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vectorDrawable.inflate(this, parser, attrs);
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drawable = vectorDrawable;
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break;
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case "animated-vector":
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AnimatedVectorDrawable animatedVectorDrawable = new AnimatedVectorDrawable();
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animatedVectorDrawable.inflate(mContext, parser, attrs);
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drawable = animatedVectorDrawable;
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break;
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default:
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drawable = Drawable.createFromXmlInner(this, parser, attrs);
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}
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return drawable;
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}
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}
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