Android手势库

<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="match_parent"android:layout_height="match_parent"><LinearLayoutandroid:layout_weight="1"android:orientation="horizontal"android:layout_width="match_parent"android:layout_height="0dp"><ImageViewandroid:id="@+id/my_gesture"android:layout_weight="1"android:layout_width="0dp"android:layout_height="match_parent"/><ImageViewandroid:id="@+id/old_gesture"<--!找到手势库中的对应手势显示在这个ImageView上-->android:layout_weight="1"android:layout_width="0dp"android:layout_height="match_parent"/></LinearLayout><android.gesture.GestureOverlayViewandroid:background="#191919"android:id="@+id/draw_gestrue"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1"android:gestureStrokeType="multiple"android:gestureStrokeWidth="5"android:gestureColor="#ffb200"android:fadeOffset="3000"/></LinearLayout>下面是一个可以书写的文本区域，调用的是Android中的gestureOverlayView/***手势库*/publicclassMainActivityextendsAppCompatActivity{privateImageViewmShowImage,mOldImage;privateGestureOverlayViewmGestureDraw;@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main3);//GestureLibraries.fromFile();mShowImage=(ImageView)findViewById(R.id.my_gesture);mOldImage=(ImageView)findViewById(R.id.old_gesture);mGestureDraw=(GestureOverlayView)findViewById(R.id.draw_gestrue);mGestureDraw.addOnGesturePerformedListener(newGestureOverlayView.OnGesturePerformedListener(){@OverridepublicvoidonGesturePerformed(GestureOverlayViewoverlay,Gesturegesture){GestureLibrarylibrary=GestureLibraries.fromFile(Environment.getExternalStorageDirectory().getAbsolutePath()+"/gesture");if(library.load()){Log.i("gesture","加载");}else{Log.i("gesture","未加载");}Bitmapbitmap=gesture.toBitmap(200,200,10,Color.RED);mShowImage.setImageBitmap(bitmap);//将我们绘制的手势与手势库中存储的手势进行对比查询出最相近的手势ArrayList<Prediction>recognize=library.recognize(gesture);if(recognize.size()>0){Toast.makeText(MainActivity3.this,"找到手势"+recognize.size(),Toast.LENGTH_SHORT).show();for(Predictionprediction:recognize){if(prediction.score>5.0f){//相识度的判断//ArrayList<Gesture>gestures=library.getGestures(prediction.name);//Bitmapbitmap1=gestures.get(0).toBitmap(200,200,10,Color.RED);//mOldImage.setImageBitmap(bitmap1);Toast.makeText(MainActivity.this,"手势相似度"+prediction.score,Toast.LENGTH_SHORT).show();}}}else{Toast.makeText(MainActivity.this,"没找手势"+recognize.size(),Toast.LENGTH_SHORT).show();}//手势添加到手势类库library.addGesture("gesture",gesture);//保存手势library.save();}});}}/***演示了手势的方法手势方法的调用时机*/publicclassMainActivityextendsAppCompatActivityimplementsGestureDetector.OnGestureListener{privateGestureDetectormGesture;@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);/***1、创建一个手势*/mGesture=newGestureDetector(this,this);}/***2、将我们的Touch事件传递给我们的手势*@paramevent*@return*/@OverridepublicbooleanonTouchEvent(MotionEventevent){returnmGesture.onTouchEvent(event);}/***摁下*@parame*@return*/@OverridepublicbooleanonDown(MotionEvente){Log.i("gesture","onDown");returnfalse;}/***按下未移动*@parame*/@OverridepublicvoidonShowPress(MotionEvente){Log.i("gesture","onShowPress");}/***轻轻点*@parame*@return*/@OverridepublicbooleanonSingleTapUp(MotionEvente){Log.i("gesture","onSingleTapUp");returnfalse;}/***滑动*@parame1起点并且这个起点不移动*@parame2结束点这点是变化的*@paramdistanceXe2到上一个e2的X距离*@paramdistanceYe2到上一个e2的Y距离*@return*/@OverridepublicbooleanonScroll(MotionEvente1,MotionEvente2,floatdistanceX,floatdistanceY){Log.i("gesture","onScrolle1:X"+e1.getX()+":Y"+e1.getY()+"e2:X"+e2.getX()+":Y"+e2.getY()+"distanceX:"+distanceX+"distanceY:"+distanceY);returnfalse;}/***长摁*@parame*/@OverridepublicvoidonLongPress(MotionEvente){Log.i("gesture","onLongPress");}/***快速滑动*@parame1摁下位置*@parame2结束位置*@paramvelocityXe1到e2的X速率*@paramvelocityYe1到e2的Y速率*@return*/@OverridepublicbooleanonFling(MotionEvente1,MotionEvente2,floatvelocityX,floatvelocityY){Log.i("gesture","onFlinge1:X"+e1.getX()+":Y"+e1.getY()+"e2:X"+e2.getX()+":Y"+e2.getY()+"velocityX:"+velocityX+"velocityY:"+velocityY);returnfalse;}}
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