opt

modules/mogo-module-extensions/src/main/java/com/mogo/module/extensions/anim/JSurfaceView.java

@@ -15,9 +15,16 @@ import android.view.SurfaceHolder;
 import android.view.SurfaceView;
 
 import com.mogo.utils.ThreadPoolService;
+import com.mogo.utils.logger.Logger;
+
+import java.lang.ref.WeakReference;
+import java.util.HashMap;
+import java.util.Map;
 
 public class JSurfaceView extends SurfaceView implements Runnable, SurfaceHolder.Callback {
 
+    private static final String TAG = "JSurfaceView";
+
     private SurfaceHolder mHolder;
 
     /**
@@ -33,6 +40,15 @@ public class JSurfaceView extends SurfaceView implements Runnable, SurfaceHolder
      */
     private int[] mFrames;
 
+    // 使用 BitmapFactory.Option.inBitmap 属性复用 bitmap 对象
+    private Bitmap mContainerBitmap = null;
+
+    // mContainerBitmap 是否生效
+    private boolean mContainerBitmapStatus = true;
+
+    // mContainerBitmapStatus 为 false 时，使用该缓存方案
+    private Map< Integer, WeakReference< Bitmap > > mBitmapRefMap = new HashMap<>();
+
     public JSurfaceView( Context context ) {
         super( context );
         init();
@@ -87,28 +103,60 @@ public class JSurfaceView extends SurfaceView implements Runnable, SurfaceHolder
 
     private void drawBitmap() {
         //获取画布并锁定
-        Canvas mCanvas = mHolder.lockCanvas();
-        if ( mCanvas == null ) {
+        Canvas canvas = mHolder.lockCanvas();
+        if ( canvas == null ) {
             return;
         }
         //绘制透明色
-        mCanvas.drawColor( Color.TRANSPARENT, PorterDuff.Mode.CLEAR );
-        Bitmap mBitmap = BitmapFactory.decodeResource( getResources(), mFrames[mCurrentPos % mFrames.length] );
+        canvas.drawColor( Color.TRANSPARENT, PorterDuff.Mode.CLEAR );
+
+        int factPosition = mCurrentPos % mFrames.length;
+
+        if ( mContainerBitmapStatus ) {
+            if ( mContainerBitmap == null ) {
+                BitmapFactory.Options options = new BitmapFactory.Options();
+                options.inMutable = true;
+                mContainerBitmap = BitmapFactory.decodeResource( getResources(), mFrames[factPosition], options );
+            } else {
+                BitmapFactory.Options options = new BitmapFactory.Options();
+                options.inMutable = true;
+                options.inBitmap = mContainerBitmap;
+                try {
+                    BitmapFactory.decodeResource( getResources(), mFrames[factPosition], options );
+                } catch ( Exception e ) {
+                    Logger.e( TAG, e, "error." );
+                    mContainerBitmapStatus = false;
+                    mContainerBitmap = null;
+                }
+            }
+        }
+        if ( !mContainerBitmapStatus ) {
+            WeakReference< Bitmap > ref = mBitmapRefMap.get( factPosition );
+            if ( ref != null && ref.get() != null && !ref.get().isRecycled() ) {
+                mContainerBitmap = ref.get();
+            } else {
+                mContainerBitmap = BitmapFactory.decodeResource( getResources(), mFrames[factPosition] );
+                mBitmapRefMap.put( factPosition, new WeakReference<>( mContainerBitmap ) );
+            }
+        }
+
+        if ( mContainerBitmap == null || mContainerBitmap.isRecycled() ) {
+            return;
+        }
 
         Paint paint = new Paint();
         Rect mSrcRect = new Rect( 0,
                 0,
-                mBitmap.getWidth(),
-                mBitmap.getHeight() ); // 图片绘制
+                mContainerBitmap.getWidth(),
+                mContainerBitmap.getHeight() ); // 图片绘制
         Rect mDestRect = new Rect( 0,
                 0,
                 getWidth(),
                 getHeight() );//  图片绘制位置
 
-        mCanvas.drawBitmap( mBitmap, mSrcRect, mDestRect, paint );
+        canvas.drawBitmap( mContainerBitmap, mSrcRect, mDestRect, paint );
         //解锁画布，并展示bitmap到surface
-        mHolder.unlockCanvasAndPost( mCanvas );
-        mBitmap.recycle();
+        mHolder.unlockCanvasAndPost( canvas );
     }
 
     @Override