dev

android/src/main/java/com/idlefish/flutterboost/BoostFlutterView.java

@@ -29,6 +29,8 @@ import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.os.Bundle;
+import android.os.Environment;
+import android.os.SystemClock;
 import android.support.v4.view.ViewCompat;
 import android.view.Gravity;
 import android.view.View;
@@ -41,6 +43,7 @@ import android.widget.TextView;
 
 import com.idlefish.flutterboost.interfaces.IStateListener;
 
+import java.io.File;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -63,9 +66,11 @@ public class BoostFlutterView extends FrameLayout {
 
     private final List<OnFirstFrameRenderedListener> mFirstFrameRenderedListeners = new LinkedList<>();
 
+    private boolean mEngineAttached = false;
+
     private boolean mNeedSnapshotWhenDetach = false;
 
-    private ImageView mSnapshot;
+    private SnapshotView mSnapshot;
 
     private final io.flutter.embedding.engine.renderer.OnFirstFrameRenderedListener mOnFirstFrameRenderedListener =
             new io.flutter.embedding.engine.renderer.OnFirstFrameRenderedListener() {
@@ -77,8 +82,8 @@ public class BoostFlutterView extends FrameLayout {
                 ((ViewGroup)mRenderingProgressCover.getParent()).removeView(mRenderingProgressCover);
             }
 
-            if(mNeedSnapshotWhenDetach && mSnapshot.getParent() != null) {
-                ((ViewGroup)mSnapshot.getParent()).removeView(mSnapshot);
+            if(mNeedSnapshotWhenDetach) {
+                mSnapshot.dismissSnapshot(BoostFlutterView.this);
             }
 
             final Object[] listeners = mFirstFrameRenderedListeners.toArray();
@@ -111,6 +116,8 @@ public class BoostFlutterView extends FrameLayout {
         addView(mFlutterView, new FrameLayout.LayoutParams(
                 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
 
+        mSnapshot = new SnapshotView(getContext());
+
         if(mRenderingProgressCoverCreator != null) {
             mRenderingProgressCover = mRenderingProgressCoverCreator
                     .createRenderingProgressCover(getContext());
@@ -123,12 +130,6 @@ public class BoostFlutterView extends FrameLayout {
                     ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
         }
 
-        mSnapshot = new ImageView(getContext());
-        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
-        params.gravity = Gravity.CENTER;
-        mSnapshot.setLayoutParams(params);
-
         mFlutterView.addOnFirstFrameRenderedListener(mOnFirstFrameRenderedListener);
 
         mFlutterEngine.startRun((Activity)getContext());
@@ -228,30 +229,29 @@ public class BoostFlutterView extends FrameLayout {
             stateListener.beforeEngineAttach(mFlutterEngine,this);
         }
         mFlutterView.attachToFlutterEngine(mFlutterEngine);
+        mEngineAttached = true;
         if(stateListener != null) {
             stateListener.afterEngineAttached(mFlutterEngine,this);
         }
     }
 
-    public void onDetach() {
-        Debuger.log("BoostFlutterView onDetach");
-
-        if(mNeedSnapshotWhenDetach) {
-
-            if(mSnapshot.getParent() != null) {
-                ((ViewGroup)mSnapshot.getParent()).removeView(mSnapshot);
+    public void toggleSnapshot() {
+        mSnapshot.toggleSnapshot(this);
     }
 
-            final Bitmap bitmap = mFlutterEngine.getRenderer().getBitmap();
-
-            if(bitmap != null) {
-                Debuger.log("BoostFlutterView snapshot "+bitmap.getByteCount());
+    public void toggleAttach() {
+        if(mEngineAttached) {
+            onDetach();
+        }else{
+            onAttach();
+        }
+    }
 
-                //Utils.saveBitmap(bitmap,"/sdcard/idlefish/fb/ss-"+ SystemClock.uptimeMillis());
+    public void onDetach() {
+        Debuger.log("BoostFlutterView onDetach");
 
-                mSnapshot.setImageBitmap(bitmap);
-                BoostFlutterView.this.addView(mSnapshot);
-            }
+        if(mNeedSnapshotWhenDetach) {
+            mSnapshot.showSnapshot(BoostFlutterView.this);
         }
 
         final IStateListener stateListener = FlutterBoost.sInstance.mStateListener;
@@ -259,6 +259,7 @@ public class BoostFlutterView extends FrameLayout {
             stateListener.beforeEngineDetach(mFlutterEngine,this);
         }
         mFlutterView.detachFromFlutterEngine();
+        mEngineAttached = false;
         if(stateListener != null) {
             stateListener.afterEngineDetached(mFlutterEngine,this);
         }

android/src/main/java/com/idlefish/flutterboost/SnapshotView.java

+package com.idlefish.flutterboost;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+import android.widget.ImageView;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class SnapshotView extends FrameLayout {
+
+    private ImageView mImg;
+
+    public SnapshotView(@NonNull Context context) {
+        super(context);
+        init();
+    }
+
+    public SnapshotView(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public SnapshotView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        init();
+    }
+
+    private void init(){
+        setBackgroundColor(Color.RED);
+
+        mImg = new ImageView(getContext());
+
+        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
+        params.gravity = Gravity.CENTER;
+
+        mImg.setScaleType(ImageView.ScaleType.FIT_XY);
+        mImg.setLayoutParams(params);
+
+        addView(mImg);
+    }
+
+    public void toggleSnapshot(BoostFlutterView flutterView){
+        if (!dismissSnapshot(flutterView)) {
+            showSnapshot(flutterView);
+        }
+    }
+
+    public boolean showSnapshot(BoostFlutterView flutterView){
+        if(flutterView == null) return false;
+
+        dismissSnapshot(flutterView);
+
+        final Bitmap bitmap = flutterView.getEngine().getRenderer().getBitmap();
+        if(bitmap == null || bitmap.isRecycled()) {
+            return false;
+        }
+
+        mImg.setImageBitmap(bitmap);
+
+        flutterView.addView(this,new FrameLayout.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
+
+        Debuger.log("showSnapshot");
+        return true;
+    }
+
+    public boolean dismissSnapshot(BoostFlutterView flutterView){
+        List<View> snapshots = new LinkedList<>();
+
+        for(int index = 0;index < flutterView.getChildCount();index++){
+            View view = flutterView.getChildAt(index);
+            if(view instanceof SnapshotView) {
+                snapshots.add(view);
+            }
+        }
+
+        if(snapshots.isEmpty()) {
+            return false;
+        }else{
+            for(View v:snapshots) {
+                flutterView.removeView(v);
+            }
+            Debuger.log("dismissSnapshot");
+            return true;
+        }
+    }
+}

android/src/main/java/com/idlefish/flutterboost/Utils.java

@@ -38,12 +38,12 @@ public class Utils {
         }
     }
 
-    public static void saveBitmap(Bitmap bm, String filePath) {
-        File f = new File(filePath);
-
+    public static void saveBitmap(Bitmap bm,File path, String name) {
         try {
-            if (!f.exists()) {
-                if(!f.getParentFile().exists() && !f.getParentFile().mkdirs()) {
+            File f = new File(path,name);
+
+            if (!path.exists()) {
+                if(!path.mkdirs()) {
                     throw new Exception("mkdir except");
                 }
 
@@ -56,6 +56,8 @@ public class Utils {
             bm.compress(Bitmap.CompressFormat.PNG, 100, out);
             out.flush();
             out.close();
+
+            Debuger.exception("saved bitmap:"+f.getAbsolutePath());
         } catch (Throwable t){
             throw new RuntimeException(t);
         }

example/android/app/src/main/java/com/taobao/idlefish/flutterboostexample/MyApplication.java

@@ -27,6 +27,11 @@ public class MyApplication extends FlutterApplication {
                 return MyApplication.this;
             }
 
+            @Override
+            public boolean isDebug() {
+                return true;
+            }
+
             @Override
             public void openContainer(Context context, String url, Map<String, Object> urlParams, int requestCode, Map<String, Object> exts) {
                 PageRouter.openPageByUrl(context,url,urlParams,requestCode);