Merge "Improve LayoutInflater's compliance." (0a2ed6de) · Commits · e / os / android_frameworks_base

core/java/android/view/LayoutInflater.java

+78 −4

Original line number	Diff line number	Diff line
		@@ -16,6 +16,10 @@

		package android.view;

		import android.graphics.Canvas;
		import android.os.Handler;
		import android.os.Message;
		import android.widget.FrameLayout;
		import org.xmlpull.v1.XmlPullParser;
		import org.xmlpull.v1.XmlPullParserException;

		@@ -83,6 +87,7 @@ public abstract class LayoutInflater {

		private static final String TAG_MERGE = "merge";
		private static final String TAG_INCLUDE = "include";
		private static final String TAG_1995 = "blink";
		private static final String TAG_REQUEST_FOCUS = "requestFocus";

		/**
		@@ -454,7 +459,12 @@ public abstract class LayoutInflater {
		rInflate(parser, root, attrs, false);
		} else {
		// Temp is the root view that was found in the xml
		View temp = createViewFromTag(root, name, attrs);
		View temp;
		if (TAG_1995.equals(name)) {
		temp = new BlinkLayout(mContext, attrs);
		} else {
		temp = createViewFromTag(root, name, attrs);
		}

		ViewGroup.LayoutParams params = null;

		@@ -605,10 +615,9 @@ public abstract class LayoutInflater {
		* Throw an exception because the specified class is not allowed to be inflated.
		*/
		private void failNotAllowed(String name, String prefix, AttributeSet attrs) {
		InflateException ie = new InflateException(attrs.getPositionDescription()
		throw new InflateException(attrs.getPositionDescription()
		+ ": Class not allowed to be inflated "
		+ (prefix != null ? (prefix + name) : name));
		throw ie;
		}

		/**
		@@ -720,6 +729,12 @@ public abstract class LayoutInflater {
		parseInclude(parser, parent, attrs);
		} else if (TAG_MERGE.equals(name)) {
		throw new InflateException("<merge /> must be the root element");
		} else if (TAG_1995.equals(name)) {
		final View view = new BlinkLayout(mContext, attrs);
		final ViewGroup viewGroup = (ViewGroup) parent;
		final ViewGroup.LayoutParams params = viewGroup.generateLayoutParams(attrs);
		rInflate(parser, view, attrs, true);
		viewGroup.addView(view, params);
		} else {
		final View view = createViewFromTag(parent, name, attrs);
		final ViewGroup viewGroup = (ViewGroup) parent;
		@@ -848,4 +863,63 @@ public abstract class LayoutInflater {
		// Empty
		}
		}

		private static class BlinkLayout extends FrameLayout {
		private static final int MESSAGE_BLINK = 0x42;
		private static final int BLINK_DELAY = 500;

		private boolean mBlink;
		private boolean mBlinkState;
		private final Handler mHandler;

		public BlinkLayout(Context context, AttributeSet attrs) {
		super(context, attrs);
		mHandler = new Handler(new Handler.Callback() {
		@Override
		public boolean handleMessage(Message msg) {
		if (msg.what == MESSAGE_BLINK) {
		if (mBlink) {
		mBlinkState = !mBlinkState;
		makeBlink();
		}
		invalidate();
		return true;
		}
		return false;
		}
		});
		}

		private void makeBlink() {
		Message message = mHandler.obtainMessage(MESSAGE_BLINK);
		mHandler.sendMessageDelayed(message, BLINK_DELAY);
		}

		@Override
		protected void onAttachedToWindow() {
		super.onAttachedToWindow();

		mBlink = true;
		mBlinkState = true;

		makeBlink();
		}

		@Override
		protected void onDetachedFromWindow() {
		super.onDetachedFromWindow();

		mBlink = false;
		mBlinkState = true;

		mHandler.removeMessages(MESSAGE_BLINK);
		}

		@Override
		protected void dispatchDraw(Canvas canvas) {
		if (mBlinkState) {
		super.dispatchDraw(canvas);
		}
		}
		}
		}