<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="wrap_content"   android:layout_height="wrap_content">    <LinearLayout     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:background="@drawable/corners_bg"     android:paddingBottom="3dp"     android:paddingTop="3dp"     android:paddingLeft="15dp"     android:paddingRight="8dp"     android:layout_gravity="center"     android:gravity="center"     android:orientation="horizontal">      <TextView       android:id="@+id/record_time"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:text="00:00"       android:textColor="#ffffff"       android:textSize="10dp" />     <View       android:layout_width="2dp"       android:layout_height="match_parent"       android:layout_marginLeft="5dp"       android:layout_marginRight="5dp"       android:textColor="#ffffff" />     <LinearLayout       android:id="@+id/stop_record"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_gravity="center"       android:gravity="center"       android:orientation="horizontal">       <ImageView         android:id="@+id/record_hint_button"         android:layout_width="10dp"         android:layout_height="10dp"         android:layout_marginRight="5dp"         android:background="#FF4040" />        <TextView         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="結束"         android:textColor="#ffffff"         android:textSize="10dp" />     </LinearLayout>   </LinearLayout> </LinearLayout> 

package com.android.systemui;   import android.annotation.TargetApi; import android.app.Service; import android.content.Context; import android.content.Intent; import android.os.Binder; import android.os.Build; import android.os.Environment; import android.os.Handler; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.support.annotation.RequiresApi; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.view.animation.LinearInterpolator;   import android.graphics.PixelFormat; import android.view.GestureDetector; import android.view.GestureDetector.SimpleOnGestureListener; import android.view.Gravity; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.widget.LinearLayout; import android.widget.TextView; import android.view.View.OnTouchListener; import android.view.WindowManager; import android.view.WindowManager.LayoutParams; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.Toast; import com.android.systemui.R; import android.util.Log; import java.io.File; import java.io.IOException;  public class ScreenRecordService extends Service implements Handler.Callback {     private final String TAG = "ScreenRecordService";   private Handler mHandler;   //已經錄制多少秒了   private int mRecordSeconds = 0;   private static final int MSG_TYPE_COUNT_DOWN = 110;    /**    * 定義浮動窗口布局    */   LinearLayout mlayout;   TextView recordTime;   /**    * 懸浮窗控件    */   ImageView recordHintButton;   LinearLayout stopRecord;   /**    * 懸浮窗的布局    */   WindowManager.LayoutParams wmParams;   LayoutInflater inflater;   /**    * 創建浮動窗口設置布局參數的對象    */   WindowManager mWindowManager;     //觸摸監聽器   GestureDetector mGestureDetector;     FloatingListener mFloatingListener;    @Override   public void onCreate() {     super.onCreate();    initWindow();//設置窗口的參數    initFloating();//設置懸浮窗圖標  }   @Override   public void onDestroy() {     super.onDestroy();     try {       if (mlayout != null) {         // 移除懸浮窗口         mWindowManager.removeView(mlayout);       }     } catch (Exception e) {       Log.e(TAG, "not attached to window manager");     }   }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)   @Override   public boolean handleMessage(Message msg) {     switch (msg.what) {        case MSG_TYPE_COUNT_DOWN: {          mRecordSeconds++;         int minute = 0, second = 0;         if (mRecordSeconds >= 60) {           minute = mRecordSeconds / 60;           second = mRecordSeconds % 60;         } else {           second = mRecordSeconds;         } String timeTip = ""+minute+":"+second;         recordTime.setText(timeTip);       }         break;       }     }     return true;   }    /**    * 初始化windowManager    */   private void initWindow() {     if (mWindowManager == null) {       mWindowManager = (WindowManager) getApplication().getSystemService(Context.WINDOW_SERVICE);     }     wmParams = getParams(wmParams);//設置好懸浮窗的參數     // 懸浮窗默認顯示以左上角為起始坐標     wmParams.gravity = Gravity.LEFT | Gravity.TOP;     //懸浮窗的開始位置，因為設置的是從左上角開始，所以屏幕左上角是x=0;y=0     wmParams.x = 0;     wmParams.y = 0;     //得到容器，通過這個inflater來獲得懸浮窗控件     if (inflater == null) {       inflater = LayoutInflater.from(getApplication());     }     // 獲取浮動窗口視圖所在布局     if (mlayout == null) {       mlayout = (LinearLayout) inflater.inflate(R.layout.record_screen_time_float, null);     }     // 添加懸浮窗的視圖     mWindowManager.addView(mlayout, wmParams);   }     /**    * 對windowManager進行設置    *    * @param wmParams    * @return    */   public WindowManager.LayoutParams getParams(WindowManager.LayoutParams wmParams) {     if (wmParams == null) {       wmParams = new WindowManager.LayoutParams();     }     //設置window type 下面變量2002是在屏幕區域顯示，2003則可以顯示在狀態欄之上     //wmParams.type = LayoutParams.TYPE_PHONE;     //wmParams.type = LayoutParams.TYPE_SYSTEM_ALERT;     wmParams.type = LayoutParams.TYPE_SYSTEM_ERROR;     //設置圖片格式，效果為背景透明     wmParams.format = PixelFormat.RGBA_8888;     //設置浮動窗口不可聚焦（實現操作除浮動窗口外的其他可見窗口的操作）     //wmParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE;     //設置可以顯示在狀態欄上     wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |         WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR |         WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;     //設置懸浮窗口長寬數據     wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;     wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;     return wmParams;   }    /**    * 找到懸浮窗的圖標，并且設置事件    * 設置懸浮窗的點擊、滑動事件    */   private void initFloating() {     recordTime = (TextView) mlayout.findViewById(R.id.record_time);     recordHintButton = (ImageView) mlayout.findViewById(R.id.record_hint_button);     setFlickerAnimation(recordHintButton);     stopRecord = (LinearLayout) mlayout.findViewById(R.id.stop_record);     mlayout.setOnClickListener(new View.OnClickListener() {       @Override       public void onClick(View v) {         Log.d(TAG, "OnClickListener");         ScreenUtil.stopScreenRecord(ScreenRecordService.this);       }     });     if (mGestureDetector == null) {       mGestureDetector = new GestureDetector(this, new MyOnGestureListener());     }     if(mFloatingListener == null){       //設置監聽器       mFloatingListener = new FloatingListener();     }     mlayout.setOnTouchListener(mFloatingListener);     stopRecord.setOnTouchListener(mFloatingListener);   } /×  ×錄屏狀態顯示（閃爍效果）  ×/   private void setFlickerAnimation(ImageView iv_chat_head) {     final Animation animation = new AlphaAnimation(1, 0); // Change alpha from fully visible to invisible     animation.setDuration(500); // duration - half a second     animation.setInterpolator(new LinearInterpolator()); // do not alter animation rate     animation.setRepeatCount(Animation.INFINITE); // Repeat animation infinitely     animation.setRepeatMode(Animation.REVERSE); //     iv_chat_head.setAnimation(animation);   }     //開始觸控的坐標，移動時的坐標（相對于屏幕左上角的坐標）   private int mTouchStartX, mTouchStartY, mTouchCurrentX, mTouchCurrentY;   //開始時的坐標和結束時的坐標（相對于自身控件的坐標）   private int mStartX, mStartY, mStopX, mStopY;   private boolean isMove;//判斷懸浮窗是否移動     /**    * 懸浮窗監聽器    */   private class FloatingListener implements OnTouchListener {      @Override     public boolean onTouch(View arg0, MotionEvent event) {        int action = event.getAction();       switch (action) {         case MotionEvent.ACTION_DOWN:           isMove = false;           mTouchStartX = (int) event.getRawX();           mTouchStartY = (int) event.getRawY();           mStartX = (int) event.getX();           mStartY = (int) event.getY();           break;         case MotionEvent.ACTION_MOVE:           mTouchCurrentX = (int) event.getRawX();           mTouchCurrentY = (int) event.getRawY();           wmParams.x += mTouchCurrentX - mTouchStartX;           wmParams.y += mTouchCurrentY - mTouchStartY;           if (mlayout != null) {             mWindowManager.updateViewLayout(mlayout, wmParams);           }           mTouchStartX = mTouchCurrentX;           mTouchStartY = mTouchCurrentY;           break;         case MotionEvent.ACTION_UP:           mStopX = (int) event.getX();           mStopY = (int) event.getY();           if (Math.abs(mStartX - mStopX) >= 1 || Math.abs(mStartY - mStopY) >= 1) {             isMove = true;           }           break;       }       return mGestureDetector.onTouchEvent(event); //此處必須返回false，否則OnClickListener獲取不到監聽     }   }    /**    * 自定義的手勢監聽類    */   class MyOnGestureListener extends SimpleOnGestureListener {     @Override     public boolean onSingleTapConfirmed(MotionEvent e) {       if (!isMove) {         System.out.println("onclick");       }       return super.onSingleTapConfirmed(e);     }   }  }