From 16231226d78ab7f1db1d6213a4cea758ae9313a2 Mon Sep 17 00:00:00 2001
From: Horcrux <master@horcrux.cn>
Date: Sun, 8 Jan 2017 21:19:25 +0800
Subject: [PATCH] Fallback to bitmap again!

---
 .../main/java/com/horcrux/svg/SvgView.java    | 22 +++++++-
 .../java/com/horcrux/svg/SvgViewManager.java  |  2 +-
 .../com/horcrux/svg/SvgViewShadowNode.java    | 56 ++++---------------
 3 files changed, 30 insertions(+), 50 deletions(-)

diff --git a/android/src/main/java/com/horcrux/svg/SvgView.java b/android/src/main/java/com/horcrux/svg/SvgView.java
index bbc674347..77308be9d 100644
--- a/android/src/main/java/com/horcrux/svg/SvgView.java
+++ b/android/src/main/java/com/horcrux/svg/SvgView.java
@@ -31,9 +31,9 @@
 import javax.annotation.Nullable;
 
 /**
- * Custom {@link View} implementation that draws an RNSVGSvg React view and its \children.
+ * Custom {@link View} implementation that draws an RNSVGSvg React view and its children.
  */
-public class SvgView extends TextureView {
+public class SvgView extends View {
     public enum Events {
         EVENT_DATA_URL("onDataURL");
 
@@ -49,6 +49,7 @@ public String toString() {
         }
     }
 
+    private @Nullable Bitmap mBitmap;
     private RCTEventEmitter mEventEmitter;
     private EventDispatcher mEventDispatcher;
     private int mTargetTag;
@@ -58,11 +59,26 @@ public String toString() {
 
     public SvgView(ReactContext reactContext) {
         super(reactContext);
-        setOpaque(false);
         mEventEmitter = reactContext.getJSModule(RCTEventEmitter.class);
         mEventDispatcher = reactContext.getNativeModule(UIManagerModule.class).getEventDispatcher();
     }
 
+    public void setBitmap(Bitmap bitmap) {
+        if (mBitmap != null) {
+            mBitmap.recycle();
+        }
+        mBitmap = bitmap;
+        invalidate();
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        super.onDraw(canvas);
+        if (mBitmap != null) {
+            canvas.drawBitmap(mBitmap, 0, 0, null);
+        }
+    }
+
     private SvgViewShadowNode getShadowNode() {
         return SvgViewShadowNode.getShadowNodeByTag(getId());
     }
diff --git a/android/src/main/java/com/horcrux/svg/SvgViewManager.java b/android/src/main/java/com/horcrux/svg/SvgViewManager.java
index e8f15ad99..14241d3cf 100644
--- a/android/src/main/java/com/horcrux/svg/SvgViewManager.java
+++ b/android/src/main/java/com/horcrux/svg/SvgViewManager.java
@@ -68,7 +68,7 @@ protected SvgView createViewInstance(ThemedReactContext reactContext) {
 
     @Override
     public void updateExtraData(SvgView root, Object extraData) {
-        root.setSurfaceTextureListener((SvgViewShadowNode) extraData);
+        root.setBitmap((Bitmap) extraData);
     }
 
     @Override
diff --git a/android/src/main/java/com/horcrux/svg/SvgViewShadowNode.java b/android/src/main/java/com/horcrux/svg/SvgViewShadowNode.java
index 6f92aed87..3ec062cf0 100644
--- a/android/src/main/java/com/horcrux/svg/SvgViewShadowNode.java
+++ b/android/src/main/java/com/horcrux/svg/SvgViewShadowNode.java
@@ -36,7 +36,7 @@
 /**
  * Shadow node for RNSVG virtual tree root - RNSVGSvgView
  */
-public class SvgViewShadowNode extends LayoutShadowNode implements TextureView.SurfaceTextureListener {
+public class SvgViewShadowNode extends LayoutShadowNode {
 
     private static final SparseArray<SvgViewShadowNode> mTagToShadowNode = new SparseArray<>();
     private @Nullable Surface mSurface;
@@ -64,8 +64,7 @@ public boolean isVirtualAnchor() {
     @Override
     public void onCollectExtraUpdates(UIViewOperationQueue uiUpdater) {
         super.onCollectExtraUpdates(uiUpdater);
-        drawOutput();
-        uiUpdater.enqueueUpdateExtraData(getReactTag(), this);
+        uiUpdater.enqueueUpdateExtraData(getReactTag(), drawOutput());
     }
 
     @Override
@@ -74,52 +73,17 @@ public void setReactTag(int reactTag) {
         mTagToShadowNode.put(getReactTag(), this);
     }
 
-    public void drawOutput() {
-        if (mSurface == null || !mSurface.isValid()) {
-            markChildrenUpdatesSeen(this);
-            return;
-        }
-
-        try {
-            Canvas canvas = mSurface.lockCanvas(null);
-            drawChildren(canvas);
-
-            if (mSurface != null) {
-                mSurface.unlockCanvasAndPost(canvas);
-            }
-
-        } catch (IllegalArgumentException | IllegalStateException e) {
-            FLog.e(ReactConstants.TAG, e.getClass().getSimpleName() + " in Svg.unlockCanvasAndPost");
-        }
-    }
-
-    private void markChildrenUpdatesSeen(ReactShadowNode shadowNode) {
-        for (int i = 0; i < shadowNode.getChildCount(); i++) {
-            ReactShadowNode child = shadowNode.getChildAt(i);
-            child.markUpdateSeen();
-            markChildrenUpdatesSeen(child);
-        }
-    }
-
-    @Override
-    public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
-        mSurface = new Surface(surface);
-        drawOutput();
-    }
+    public Object drawOutput() {
+        Bitmap bitmap = Bitmap.createBitmap(
+                (int) getLayoutWidth(),
+                (int) getLayoutHeight(),
+                Bitmap.Config.ARGB_8888);
 
-    @Override
-    public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
-        surface.release();
-        mSurface = null;
-        return true;
+        Canvas canvas = new Canvas(bitmap);
+        drawChildren(canvas);
+        return bitmap;
     }
 
-    @Override
-    public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {}
-
-    @Override
-    public void onSurfaceTextureUpdated(SurfaceTexture surface) {}
-
     private void drawChildren(Canvas canvas) {
         canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
         Paint paint = new Paint();