系统服务

最新推荐文章于 2023-08-04 19:05:16 发布

原创最新推荐文章于 2023-08-04 19:05:16 发布 · 210 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#系统服务

Android 专栏收录该内容

32 篇文章

订阅专栏

系统服务

        AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
        //获取音乐声音的最大值
        //获取当前的音乐值

        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        //设置一次性闹钟
        //设置重复闹钟

        WindowManager windowManager = (WindowManager) getApplicationContext().getSystemService(WINDOW_SERVICE);
        //添加视图
        //修改视图
        //移除视图 




        ConnectivityManager manager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
        //获取当前的网络状态

        SensorManager sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        //获取当前的手机有哪些传感器
        //获取任意一款传感器
        //所有的传感器，都是通过注册监听来获取数据
        //销毁监听


         ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
        //获取系统里所有正在运行的服务

悬浮窗口

  mImageView = new ImageView(this);
            mImageView.setBackgroundResource(R.drawable.ic_launcher);
            mLayoutParams = new WindowManager.LayoutParams(
                    LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0, 0,
                    PixelFormat.TRANSPARENT);
            mLayoutParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
                    | LayoutParams.FLAG_NOT_FOCUSABLE
                    | LayoutParams.FLAG_SHOW_WHEN_LOCKED;
            mLayoutParams.type = LayoutParams.TYPE_SYSTEM_ERROR;
            mLayoutParams.gravity = Gravity.TOP | Gravity.LEFT;
            mLayoutParams.x = 100;
            mLayoutParams.y = 300;
            mImageView.setOnTouchListener(this);
            mWindowManager.addView(mImageView, mLayoutParams);

拖动悬浮窗口

        @Override
    public boolean onTouch(View v, MotionEvent event) {
        int rawX = (int) event.getRawX();
        int rawY = (int) event.getRawY();
        int x = (int) event.getX();
        int y = (int) event.getY();

        switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN: {
            break;
        }
        case MotionEvent.ACTION_MOVE: {
            Log.d(TAG, "onTouch: rawX " + rawX);
            Log.d(TAG, "onTouch: rawY " + rawY);
            mLayoutParams.x = rawX;
            mLayoutParams.y = rawY;
            mWindowManager.updateViewLayout(mImageView, mLayoutParams);
            break;
        }
        case MotionEvent.ACTION_UP: {
            break;
        }
        default:
            break;
        }
        return false;
    }


    //退出销毁
        @Override
    protected void onDestroy() {
        try {
            mWindowManager.removeView(mImageView);
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        }
        super.onDestroy();
    }