Creating AllAppsBackgroundDrawable using DrawableFactory to allow (260b07fa) · Commits · e / os / BlissLauncher3

src/com/android/launcher3/allapps/AllAppsBackgroundDrawable.java

+51 −49

Original line number	Diff line number	Diff line
		@@ -23,14 +23,21 @@ import android.graphics.ColorFilter;
		import android.graphics.PixelFormat;
		import android.graphics.Rect;
		import android.graphics.drawable.Drawable;

		import android.view.Gravity;

		import com.android.launcher3.R;

		/**
		* This is a custom composite drawable that has a fixed virtual size and dynamically lays out its
		* children images relatively within its bounds. This way, we can reduce the memory usage of a
		* single, large sparsely populated image.
		*/
		public class AllAppsBackgroundDrawable extends Drawable {

		/**
		* A helper class to positon and orient a drawable to be drawn.
		*/
		class TransformedImageDrawable {
		protected static class TransformedImageDrawable {
		private Drawable mImage;
		private float mXPercent;
		private float mYPercent;
		@@ -73,21 +80,16 @@ class TransformedImageDrawable {
		}

		public void draw(Canvas canvas) {
		int c = canvas.save(Canvas.MATRIX_SAVE_FLAG);
		mImage.draw(canvas);
		canvas.restoreToCount(c);
		}
		}

		/**
		* This is a custom composite drawable that has a fixed virtual size and dynamically lays out its
		* children images relatively within its bounds. This way, we can reduce the memory usage of a
		* single, large sparsely populated image.
		*/
		public class AllAppsBackgroundDrawable extends Drawable {
		public Rect getBounds() {
		return mImage.getBounds();
		}
		}

		private final TransformedImageDrawable mHand;
		private final TransformedImageDrawable[] mIcons;
		protected final TransformedImageDrawable mHand;
		protected final TransformedImageDrawable[] mIcons;
		private final int mWidth;
		private final int mHeight;

src/com/android/launcher3/allapps/AllAppsRecyclerView.java

+14 −1

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ import android.graphics.drawable.Drawable;
		import android.support.v7.widget.RecyclerView;
		import android.util.AttributeSet;
		import android.util.SparseIntArray;
		import android.view.MotionEvent;
		import android.view.View;

		import com.android.launcher3.BaseRecyclerView;
		@@ -29,6 +30,7 @@ import com.android.launcher3.BubbleTextView;
		import com.android.launcher3.DeviceProfile;
		import com.android.launcher3.Launcher;
		import com.android.launcher3.R;
		import com.android.launcher3.graphics.DrawableFactory;
		import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;

		import java.util.List;
		@@ -207,7 +209,8 @@ public class AllAppsRecyclerView extends BaseRecyclerView {

		if (mApps.hasNoFilteredResults()) {
		if (mEmptySearchBackground == null) {
		mEmptySearchBackground = new AllAppsBackgroundDrawable(getContext());
		mEmptySearchBackground = DrawableFactory.get(getContext())
		.getAllAppsBackground(getContext());
		mEmptySearchBackground.setAlpha(0);
		mEmptySearchBackground.setCallback(this);
		updateEmptySearchBackgroundBounds();
		@@ -220,6 +223,16 @@ public class AllAppsRecyclerView extends BaseRecyclerView {
		}
		}

		@Override
		public boolean onInterceptTouchEvent(MotionEvent e) {
		boolean result = super.onInterceptTouchEvent(e);
		if (!result && e.getAction() == MotionEvent.ACTION_DOWN
		&& mEmptySearchBackground != null && mEmptySearchBackground.getAlpha() > 0) {
		mEmptySearchBackground.setHotspot(e.getX(), e.getY());
		}
		return result;
		}

		/**
		* Maps the touch (from 0..1) to the adapter position that should be visible.
		*/

src/com/android/launcher3/graphics/DrawableFactory.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ import com.android.launcher3.FastBitmapDrawable;
		import com.android.launcher3.ItemInfo;
		import com.android.launcher3.R;
		import com.android.launcher3.Utilities;
		import com.android.launcher3.allapps.AllAppsBackgroundDrawable;

		/**
		* Factory for creating new drawables.
		@@ -50,4 +51,8 @@ public class DrawableFactory {
		d.setFilterBitmap(true);
		return d;
		}

		public AllAppsBackgroundDrawable getAllAppsBackground(Context context) {
		return new AllAppsBackgroundDrawable(context);
		}
		}