Correctly apply android:theme attribute from <include> tag (6194d728) · Commits · e / os / android_frameworks_base

core/java/android/view/LayoutInflater.java

+104 −79

Original line number	Diff line number	Diff line
		@@ -452,9 +452,10 @@ public abstract class LayoutInflater {
		synchronized (mConstructorArgs) {
		Trace.traceBegin(Trace.TRACE_TAG_VIEW, "inflate");

		final Context inflaterContext = mContext;
		final AttributeSet attrs = Xml.asAttributeSet(parser);
		Context lastContext = (Context) mConstructorArgs[0];
		mConstructorArgs[0] = mContext;
		mConstructorArgs[0] = inflaterContext;
		View result = root;

		try {
		@@ -485,10 +486,10 @@ public abstract class LayoutInflater {
		+ "ViewGroup root and attachToRoot=true");
		}

		rInflate(parser, root, attrs, false, false);
		rInflate(parser, root, inflaterContext, attrs, false);
		} else {
		// Temp is the root view that was found in the xml
		final View temp = createViewFromTag(root, name, attrs, false);
		final View temp = createViewFromTag(root, name, inflaterContext, attrs);

		ViewGroup.LayoutParams params = null;

		@@ -509,8 +510,10 @@ public abstract class LayoutInflater {
		if (DEBUG) {
		System.out.println("-----> start inflating children");
		}
		// Inflate all children under temp
		rInflate(parser, temp, attrs, true, true);

		// Inflate all children under temp against its context.
		rInflateChildren(parser, temp, attrs, true);

		if (DEBUG) {
		System.out.println("-----> done inflating children");
		}
		@@ -691,60 +694,69 @@ public abstract class LayoutInflater {
		return onCreateView(name, attrs);
		}

		/**
		* Convenience method for calling through to the five-arg createViewFromTag
		* method. This method passes {@code false} for the {@code ignoreThemeAttr}
		* argument and should be used for everything except {@code >include>}
		* tag parsing.
		*/
		private View createViewFromTag(View parent, String name, Context context, AttributeSet attrs) {
		return createViewFromTag(parent, name, context, attrs, false);
		}

		/**
		* Creates a view from a tag name using the supplied attribute set.
		* <p>
		* If {@code inheritContext} is true and the parent is non-null, the view
		* will be inflated in parent view's context. If the view specifies a
		* <theme> attribute, the inflation context will be wrapped with the
		* specified theme.
		* <p>
		* Note: Default visibility so the BridgeInflater can override it.
		* <strong>Note:</strong> Default visibility so the BridgeInflater can
		* override it.
		*
		* @param parent the parent view, used to inflate layout params
		* @param name the name of the XML tag used to define the view
		* @param context the inflation context for the view, typically the
		* {@code parent} or base layout inflater context
		* @param attrs the attribute set for the XML tag used to define the view
		* @param ignoreThemeAttr {@code true} to ignore the {@code android:theme}
		* attribute (if set) for the view being inflated,
		* {@code false} otherwise
		*/
		View createViewFromTag(View parent, String name, AttributeSet attrs, boolean inheritContext) {
		View createViewFromTag(View parent, String name, Context context, AttributeSet attrs,
		boolean ignoreThemeAttr) {
		if (name.equals("view")) {
		name = attrs.getAttributeValue(null, "class");
		}

		Context viewContext;
		if (parent != null && inheritContext) {
		viewContext = parent.getContext();
		} else {
		viewContext = mContext;
		}

		// Apply a theme wrapper, if requested.
		final TypedArray ta = viewContext.obtainStyledAttributes(attrs, ATTRS_THEME);
		// Apply a theme wrapper, if allowed and one is specified.
		if (!ignoreThemeAttr) {
		final TypedArray ta = context.obtainStyledAttributes(attrs, ATTRS_THEME);
		final int themeResId = ta.getResourceId(0, 0);
		if (themeResId != 0) {
		viewContext = new ContextThemeWrapper(viewContext, themeResId);
		context = new ContextThemeWrapper(context, themeResId);
		}
		ta.recycle();
		}

		if (name.equals(TAG_1995)) {
		// Let's party like it's 1995!
		return new BlinkLayout(viewContext, attrs);
		return new BlinkLayout(context, attrs);
		}

		if (DEBUG) System.out.println("******** Creating view: " + name);

		try {
		View view;
		if (mFactory2 != null) {
		view = mFactory2.onCreateView(parent, name, viewContext, attrs);
		view = mFactory2.onCreateView(parent, name, context, attrs);
		} else if (mFactory != null) {
		view = mFactory.onCreateView(name, viewContext, attrs);
		view = mFactory.onCreateView(name, context, attrs);
		} else {
		view = null;
		}

		if (view == null && mPrivateFactory != null) {
		view = mPrivateFactory.onCreateView(parent, name, viewContext, attrs);
		view = mPrivateFactory.onCreateView(parent, name, context, attrs);
		}

		if (view == null) {
		final Object lastContext = mConstructorArgs[0];
		mConstructorArgs[0] = viewContext;
		mConstructorArgs[0] = context;
		try {
		if (-1 == name.indexOf('.')) {
		view = onCreateView(parent, name, attrs);
		@@ -756,37 +768,45 @@ public abstract class LayoutInflater {
		}
		}

		if (DEBUG) System.out.println("Created view is: " + view);
		return view;

		} catch (InflateException e) {
		throw e;

		} catch (ClassNotFoundException e) {
		InflateException ie = new InflateException(attrs.getPositionDescription()
		final InflateException ie = new InflateException(attrs.getPositionDescription()
		+ ": Error inflating class " + name);
		ie.initCause(e);
		throw ie;

		} catch (Exception e) {
		InflateException ie = new InflateException(attrs.getPositionDescription()
		final InflateException ie = new InflateException(attrs.getPositionDescription()
		+ ": Error inflating class " + name);
		ie.initCause(e);
		throw ie;
		}
		}

		/**
		* Recursive method used to inflate internal (non-root) children. This
		* method calls through to {@link #rInflate} using the parent context as
		* the inflation context.
		* <strong>Note:</strong> Default visibility so the BridgeInflater can
		* call it.
		*/
		final void rInflateChildren(XmlPullParser parser, View parent, AttributeSet attrs,
		boolean finishInflate) throws XmlPullParserException, IOException {
		rInflate(parser, parent, parent.getContext(), attrs, finishInflate);
		}

		/**
		* Recursive method used to descend down the xml hierarchy and instantiate
		* views, instantiate their children, and then call onFinishInflate().
		*
		* @param inheritContext Whether the root view should be inflated in its
		* parent's context. This should be true when called inflating
		* child views recursively, or false otherwise.
		* <p>
		* <strong>Note:</strong> Default visibility so the BridgeInflater can
		* override it.
		*/
		void rInflate(XmlPullParser parser, View parent, final AttributeSet attrs,
		boolean finishInflate, boolean inheritContext) throws XmlPullParserException,
		IOException {
		void rInflate(XmlPullParser parser, View parent, Context context,
		AttributeSet attrs, boolean finishInflate) throws XmlPullParserException, IOException {

		final int depth = parser.getDepth();
		int type;
		@@ -808,19 +828,21 @@ public abstract class LayoutInflater {
		if (parser.getDepth() == 0) {
		throw new InflateException("<include /> cannot be the root element");
		}
		parseInclude(parser, parent, attrs, inheritContext);
		parseInclude(parser, context, parent, attrs);
		} else if (TAG_MERGE.equals(name)) {
		throw new InflateException("<merge /> must be the root element");
		} else {
		final View view = createViewFromTag(parent, name, attrs, inheritContext);
		final View view = createViewFromTag(parent, name, context, attrs);
		final ViewGroup viewGroup = (ViewGroup) parent;
		final ViewGroup.LayoutParams params = viewGroup.generateLayoutParams(attrs);
		rInflate(parser, view, attrs, true, true);
		rInflateChildren(parser, view, attrs, true);
		viewGroup.addView(view, params);
		}
		}

		if (finishInflate) parent.onFinishInflate();
		if (finishInflate) {
		parent.onFinishInflate();
		}
		}

		/**
		@@ -829,13 +851,9 @@ public abstract class LayoutInflater {
		*/
		private void parseRequestFocus(XmlPullParser parser, View view)
		throws XmlPullParserException, IOException {
		int type;
		view.requestFocus();
		final int currentDepth = parser.getDepth();
		while (((type = parser.next()) != XmlPullParser.END_TAG \|\|
		parser.getDepth() > currentDepth) && type != XmlPullParser.END_DOCUMENT) {
		// Empty
		}

		consumeChildElements(parser);
		}

		/**
		@@ -844,33 +862,29 @@ public abstract class LayoutInflater {
		*/
		private void parseViewTag(XmlPullParser parser, View view, AttributeSet attrs)
		throws XmlPullParserException, IOException {
		int type;

		final TypedArray ta = view.getContext().obtainStyledAttributes(
		attrs, com.android.internal.R.styleable.ViewTag);
		final int key = ta.getResourceId(com.android.internal.R.styleable.ViewTag_id, 0);
		final CharSequence value = ta.getText(com.android.internal.R.styleable.ViewTag_value);
		final Context context = view.getContext();
		final TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.ViewTag);
		final int key = ta.getResourceId(R.styleable.ViewTag_id, 0);
		final CharSequence value = ta.getText(R.styleable.ViewTag_value);
		view.setTag(key, value);
		ta.recycle();

		final int currentDepth = parser.getDepth();
		while (((type = parser.next()) != XmlPullParser.END_TAG \|\|
		parser.getDepth() > currentDepth) && type != XmlPullParser.END_DOCUMENT) {
		// Empty
		}
		consumeChildElements(parser);
		}

		private void parseInclude(XmlPullParser parser, View parent, AttributeSet attrs,
		boolean inheritContext) throws XmlPullParserException, IOException {
		private void parseInclude(XmlPullParser parser, Context context, View parent,
		AttributeSet attrs) throws XmlPullParserException, IOException {
		int type;

		if (parent instanceof ViewGroup) {
		Context context = inheritContext ? parent.getContext() : mContext;

		// Apply a theme wrapper, if requested.
		// Apply a theme wrapper, if requested. This is sort of a weird
		// edge case, since developers think the <include> overwrites
		// values in the AttributeSet of the included View. So, if the
		// included View has a theme attribute, we'll need to ignore it.
		final TypedArray ta = context.obtainStyledAttributes(attrs, ATTRS_THEME);
		final int themeResId = ta.getResourceId(0, 0);
		if (themeResId != 0) {
		final boolean hasThemeOverride = themeResId != 0;
		if (hasThemeOverride) {
		context = new ContextThemeWrapper(context, themeResId);
		}
		ta.recycle();
		@@ -880,11 +894,12 @@ public abstract class LayoutInflater {
		int layout = attrs.getAttributeResourceValue(null, ATTR_LAYOUT, 0);
		if (layout == 0) {
		final String value = attrs.getAttributeValue(null, ATTR_LAYOUT);
		if (value == null \|\| value.length() < 1) {
		if (value == null \|\| value.length() <= 0) {
		throw new InflateException("You must specify a layout in the"
		+ " include tag: <include layout=\"@layout/layoutID\" />");
		}

		// Attempt to resolve the "?attr/name" string to an identifier.
		layout = context.getResources().getIdentifier(value.substring(1), null, null);
		}

		@@ -901,8 +916,7 @@ public abstract class LayoutInflater {
		throw new InflateException("You must specify a valid layout "
		+ "reference. The layout ID " + value + " is not valid.");
		} else {
		final XmlResourceParser childParser =
		getContext().getResources().getLayout(layout);
		final XmlResourceParser childParser = context.getResources().getLayout(layout);

		try {
		final AttributeSet childAttrs = Xml.asAttributeSet(childParser);
		@@ -920,11 +934,12 @@ public abstract class LayoutInflater {
		final String childName = childParser.getName();

		if (TAG_MERGE.equals(childName)) {
		// Inflate all children.
		rInflate(childParser, parent, childAttrs, false, inheritContext);
		// The <merge> tag doesn't support android:theme, so
		// nothing special to do here.
		rInflate(childParser, parent, context, childAttrs, false);
		} else {
		final View view = createViewFromTag(parent, childName, childAttrs,
		inheritContext);
		final View view = createViewFromTag(parent, childName,
		context, childAttrs, hasThemeOverride);
		final ViewGroup group = (ViewGroup) parent;

		final TypedArray a = context.obtainStyledAttributes(
		@@ -957,7 +972,7 @@ public abstract class LayoutInflater {
		view.setLayoutParams(params);

		// Inflate all children.
		rInflate(childParser, view, childAttrs, true, true);
		rInflateChildren(childParser, view, childAttrs, true);

		if (id != View.NO_ID) {
		view.setId(id);
		@@ -985,6 +1000,16 @@ public abstract class LayoutInflater {
		throw new InflateException("<include /> can only be used inside of a ViewGroup");
		}

		LayoutInflater.consumeChildElements(parser);
		}

		/**
		* <strong>Note:</strong> default visibility so that
		* LayoutInflater_Delegate can call it.
		*/
		final static void consumeChildElements(XmlPullParser parser)
		throws XmlPullParserException, IOException {
		int type;
		final int currentDepth = parser.getDepth();
		while (((type = parser.next()) != XmlPullParser.END_TAG \|\|
		parser.getDepth() > currentDepth) && type != XmlPullParser.END_DOCUMENT) {

tools/layoutlib/bridge/src/android/view/BridgeInflater.java

+3 −3

Original line number	Diff line number	Diff line
		@@ -131,11 +131,11 @@ public final class BridgeInflater extends LayoutInflater {
		}

		@Override
		public View createViewFromTag(View parent, String name, AttributeSet attrs,
		boolean inheritContext) {
		public View createViewFromTag(View parent, String name, Context context, AttributeSet attrs,
		boolean ignoreThemeAttrs) {
		View view;
		try {
		view = super.createViewFromTag(parent, name, attrs, inheritContext);
		view = super.createViewFromTag(parent, name, context, attrs, ignoreThemeAttrs);
		} catch (InflateException e) {
		// try to load the class from using the custom view loader
		try {

tools/layoutlib/bridge/src/android/view/LayoutInflater_Delegate.java

+81 −48

Original line number	Diff line number	Diff line
		@@ -21,9 +21,11 @@ import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
		import org.xmlpull.v1.XmlPullParser;
		import org.xmlpull.v1.XmlPullParserException;

		import android.content.Context;
		import android.content.res.TypedArray;
		import android.content.res.XmlResourceParser;
		import android.util.AttributeSet;
		import android.util.TypedValue;
		import android.util.Xml;

		import java.io.IOException;
		@@ -36,9 +38,13 @@ import java.io.IOException;
		*
		*/
		public class LayoutInflater_Delegate {

		private static final String TAG_MERGE = "merge";

		private static final String ATTR_LAYOUT = "layout";

		private static final int[] ATTRS_THEME = new int[] {
		com.android.internal.R.attr.theme };

		public static boolean sIsInInclude = false;

		/**
		@@ -49,7 +55,7 @@ public class LayoutInflater_Delegate {
		*/
		@LayoutlibDelegate
		/* package */ static void rInflate(LayoutInflater thisInflater, XmlPullParser parser,
		View parent, final AttributeSet attrs, boolean finishInflate, boolean inheritContext)
		View parent, Context context, AttributeSet attrs, boolean finishInflate)
		throws XmlPullParserException, IOException {

		if (finishInflate == false) {
		@@ -61,7 +67,7 @@ public class LayoutInflater_Delegate {

		// ---- START DEFAULT IMPLEMENTATION.

		thisInflater.rInflate_Original(parser, parent, attrs, finishInflate, inheritContext);
		thisInflater.rInflate_Original(parser, parent, context, attrs, finishInflate);

		// ---- END DEFAULT IMPLEMENTATION.

		@@ -74,15 +80,50 @@ public class LayoutInflater_Delegate {
		}

		@LayoutlibDelegate
		public static void parseInclude(LayoutInflater thisInflater, XmlPullParser parser, View parent,
		AttributeSet attrs, boolean inheritContext) throws XmlPullParserException, IOException {

		public static void parseInclude(LayoutInflater thisInflater, XmlPullParser parser,
		Context context, View parent, AttributeSet attrs)
		throws XmlPullParserException, IOException {
		int type;

		if (parent instanceof ViewGroup) {
		final int layout = attrs.getAttributeResourceValue(null, "layout", 0);
		// Apply a theme wrapper, if requested. This is sort of a weird
		// edge case, since developers think the <include> overwrites
		// values in the AttributeSet of the included View. So, if the
		// included View has a theme attribute, we'll need to ignore it.
		final TypedArray ta = context.obtainStyledAttributes(attrs, ATTRS_THEME);
		final int themeResId = ta.getResourceId(0, 0);
		final boolean hasThemeOverride = themeResId != 0;
		if (hasThemeOverride) {
		context = new ContextThemeWrapper(context, themeResId);
		}
		ta.recycle();

		// If the layout is pointing to a theme attribute, we have to
		// massage the value to get a resource identifier out of it.
		int layout = attrs.getAttributeResourceValue(null, ATTR_LAYOUT, 0);
		if (layout == 0) {
		final String value = attrs.getAttributeValue(null, ATTR_LAYOUT);
		if (value == null \|\| value.length() <= 0) {
		throw new InflateException("You must specify a layout in the"
		+ " include tag: <include layout=\"@layout/layoutID\" />");
		}

		// Attempt to resolve the "?attr/name" string to an identifier.
		layout = context.getResources().getIdentifier(value.substring(1), null, null);
		}

		// The layout might be referencing a theme attribute.
		// ---- START CHANGES
		if (layout != 0) {
		final TypedValue tempValue = new TypedValue();
		if (context.getTheme().resolveAttribute(layout, tempValue, true)) {
		layout = tempValue.resourceId;
		}
		}
		// ---- END CHANGES

		if (layout == 0) {
		final String value = attrs.getAttributeValue(null, "layout");
		final String value = attrs.getAttributeValue(null, ATTR_LAYOUT);
		if (value == null) {
		throw new InflateException("You must specifiy a layout in the"
		+ " include tag: <include layout=\"@layout/layoutID\" />");
		@@ -111,13 +152,24 @@ public class LayoutInflater_Delegate {

		if (TAG_MERGE.equals(childName)) {
		// Inflate all children.
		thisInflater.rInflate(childParser, parent, childAttrs, false,
		inheritContext);
		thisInflater.rInflate(childParser, parent, context, childAttrs, false);
		} else {
		final View view = thisInflater.createViewFromTag(parent, childName,
		childAttrs, inheritContext);
		context, childAttrs, hasThemeOverride);
		final ViewGroup group = (ViewGroup) parent;

		final TypedArray a = context.obtainStyledAttributes(
		attrs, com.android.internal.R.styleable.Include);
		final int id = a.getResourceId(
		com.android.internal.R.styleable.Include_id, View.NO_ID);
		final int visibility = a.getInt(
		com.android.internal.R.styleable.Include_visibility, -1);
		final boolean hasWidth = a.hasValue(
		com.android.internal.R.styleable.Include_layout_width);
		final boolean hasHeight = a.hasValue(
		com.android.internal.R.styleable.Include_layout_height);
		a.recycle();

		// We try to load the layout params set in the <include /> tag. If
		// they don't exist, we will rely on the layout params set in the
		// included XML file.
		@@ -127,6 +179,7 @@ public class LayoutInflater_Delegate {
		// successfully loaded layout params from the <include /> tag,
		// false means we need to rely on the included layout params.
		ViewGroup.LayoutParams params = null;
		if (hasWidth && hasHeight) {
		try {
		// ---- START CHANGES
		sIsInInclude = true;
		@@ -134,33 +187,19 @@ public class LayoutInflater_Delegate {

		params = group.generateLayoutParams(attrs);

		} catch (RuntimeException e) {
		// ---- START CHANGES
		sIsInInclude = false;
		// ---- END CHANGES

		params = group.generateLayoutParams(childAttrs);
		} finally {
		// ---- START CHANGES
		sIsInInclude = false;
		// ---- END CHANGES

		if (params != null) {
		view.setLayoutParams(params);
		}
		}
		if (params == null) {
		params = group.generateLayoutParams(childAttrs);
		}
		view.setLayoutParams(params);

		// Inflate all children.
		thisInflater.rInflate(childParser, view, childAttrs, true, true);

		// Attempt to override the included layout's android:id with the
		// one set on the <include /> tag itself.
		TypedArray a = thisInflater.mContext.obtainStyledAttributes(attrs,
		com.android.internal.R.styleable.View, 0, 0);
		int id = a.getResourceId(com.android.internal.R.styleable.View_id, View.NO_ID);
		// While we're at it, let's try to override android:visibility.
		int visibility = a.getInt(com.android.internal.R.styleable.View_visibility, -1);
		a.recycle();
		thisInflater.rInflateChildren(childParser, view, childAttrs, true);

		if (id != View.NO_ID) {
		view.setId(id);
		@@ -188,12 +227,6 @@ public class LayoutInflater_Delegate {
		throw new InflateException("<include /> can only be used inside of a ViewGroup");
		}

		final int currentDepth = parser.getDepth();
		while (((type = parser.next()) != XmlPullParser.END_TAG \|\|
		parser.getDepth() > currentDepth) && type != XmlPullParser.END_DOCUMENT) {
		// Empty
		}
		LayoutInflater.consumeChildElements(parser);
		}


		}