android悬浮球项目代码分享；

package com.ice.floatingball; import android.content.Context; import android.graphics.PixelFormat; import android.view.Gravity; import android.view.MotionEvent; import android.view.View; import android.view.WindowManager; import android.widget.Toast; import org.greenrobot.eventbus.EventBus; /** * Created by asd on 1/1/2017. */ public class ViewManager { FloatingView floatBall; WindowManager windowManager; public static ViewManager manager; Context context; private WindowManager.LayoutParams floatBallParams; private ViewManager(Context context) { this.context = context; } public static ViewManager getInstance(Context context) { if (manager == null) { manager = new ViewManager(context); } return manager; } public void showFloatBall() { floatBall = new FloatingView(context); windowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); if (floatBallParams == null) { floatBallParams = new WindowManager.LayoutParams(); floatBallParams.width = floatBall.width; floatBallParams.height = floatBall.height; floatBallParams.gravity = Gravity.TOP | Gravity.LEFT; floatBallParams.type = WindowManager.LayoutParams.TYPE_TOAST; floatBallParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL; floatBallParams.format = PixelFormat.RGBA_8888; } windowManager.addView(floatBall, floatBallParams); floatBall.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { EventBus.getDefault().post(MyAccessibilityService.BACK); Toast.makeText(context, "点击了悬浮球 执行后退操作", Toast.LENGTH_SHORT).show(); } }); floatBall.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { EventBus.getDefault().post(MyAccessibilityService.HOME); Toast.makeText(context, "长按了悬浮球 执行返回桌面", Toast.LENGTH_SHORT).show(); return false; } }); floatBall.setOnTouchListener(new View.OnTouchListener() { float startX; float startY; float tempX; float tempY; @Override public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: startX = event.getRawX(); startY = event.getRawY(); tempX = event.getRawX(); tempY = event.getRawY(); break; case MotionEvent.ACTION_MOVE: float dx = event.getRawX() - startX; float dy = event.getRawY() - startY; //计算偏移量，刷新视图 floatBallParams.x += dx; floatBallParams.y += dy; windowManager.updateViewLayout(floatBall, floatBallParams); startX = event.getRawX(); startY = event.getRawY(); break; case MotionEvent.ACTION_UP: //判断松手时View的横坐标是靠近屏幕哪一侧，将View移动到依靠屏幕 float endX = event.getRawX(); float endY = event.getRawY(); if (endX < getScreenWidth() / 2) { endX = 0; } else { endX = getScreenWidth() - floatBall.width; } floatBallParams.x = (int) endX; windowManager.updateViewLayout(floatBall, floatBallParams); //如果初始落点与松手落点的坐标差值超过6个像素，则拦截该点击事件 //否则继续传递，将事件交给OnClickListener函数处理 if (Math.abs(endX - tempX) > 6 && Math.abs(endY - tempY) > 6) { return true; } break; } return false; } }); } public int getScreenWidth() { return windowManager.getDefaultDisplay().getWidth(); } }