Add support for assigning keyed View tags via XML (451a3417) · Commits · e / os / android_frameworks_base

core/java/android/view/LayoutInflater.java

+31 −2

Original line number	Diff line number	Diff line
		@@ -90,6 +90,7 @@ public abstract class LayoutInflater {
		private static final String TAG_INCLUDE = "include";
		private static final String TAG_1995 = "blink";
		private static final String TAG_REQUEST_FOCUS = "requestFocus";
		private static final String TAG_TAG = "tag";

		private static final int[] ATTRS_THEME = new int[] {
		com.android.internal.R.attr.theme };
		@@ -778,6 +779,8 @@ public abstract class LayoutInflater {

		if (TAG_REQUEST_FOCUS.equals(name)) {
		parseRequestFocus(parser, parent);
		} else if (TAG_TAG.equals(name)) {
		parseViewTag(parser, parent, attrs);
		} else if (TAG_INCLUDE.equals(name)) {
		if (parser.getDepth() == 0) {
		throw new InflateException("<include /> cannot be the root element");
		@@ -797,10 +800,36 @@ public abstract class LayoutInflater {
		if (finishInflate) parent.onFinishInflate();
		}

		private void parseRequestFocus(XmlPullParser parser, View parent)
		/**
		* Parses a <code><request-focus></code> element and requests focus on
		* the containing View.
		*/
		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
		}
		}

		/**
		* Parses a <code><tag></code> element and sets a keyed tag on the
		* containing View.
		*/
		private void parseViewTag(XmlPullParser parser, View view, AttributeSet attrs)
		throws XmlPullParserException, IOException {
		int type;
		parent.requestFocus();

		final TypedArray ta = mContext.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);
		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) {

core/res/res/values/attrs.xml

+8 −0

Original line number	Diff line number	Diff line
		@@ -2257,6 +2257,14 @@
		<attr name="sharedElementName" format="string" />
		</declare-styleable>

		<!-- Attributes that can be assigned to a tag for a particular View. -->
		<declare-styleable name="ViewTag">
		<!-- Specifies the key identifying a tag. This must be a resource reference. -->
		<attr name="id" />
		<!-- Specifies the value with which to tag the view. -->
		<attr name="value" />
		</declare-styleable>

		<!-- Attributes that can be used with a {@link android.view.ViewGroup} or any
		of its subclasses. Also see {@link #ViewGroup_Layout} for
		attributes that this class processes in its children. -->