欧美bbbwbbbw肥妇,免费乱码人妻系列日韩,一级黄片

Android PhoneWindowManager監(jiān)聽屏幕右側(cè)向左滑動實現(xiàn)返回功能

 更新時間:2020年04月14日 14:02:30   作者:祥子Gyx  
這篇文章主要介紹了Android PhoneWindowManager監(jiān)聽屏幕右側(cè)向左滑動實現(xiàn)返回功能,本文通過實例代碼給大家介紹的非常詳細(xì),對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友可以參考下

由于項目沒有設(shè)計返回鍵,一旦進(jìn)入別的應(yīng)用,就無法回到桌面。只能通過串口輸入input keyevent 4(返回鍵)來返回桌面,為了方便調(diào)試,在Framework 中監(jiān)聽手勢,實現(xiàn)返回功能。

       在frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager中有這么一段代碼

mSystemGestures = new SystemGesturesPointerEventListener(context,
        new SystemGesturesPointerEventListener.Callbacks() {
          @Override
          public void onSwipeFromTop() {
   Log.i("gyx","onSwipeFromTop");
            if (mStatusBar != null) {
              requestTransientBars(mStatusBar);
            }
          }
          @Override
          public void onSwipeFromBottom() {
   Log.i("gyx","onSwipeFromBottom");
            if (mNavigationBar != null && mNavigationBarPosition == NAV_BAR_BOTTOM) {
              requestTransientBars(mNavigationBar);
            }
          }
          @Override
          public void onSwipeFromRight() {
   Log.i("gyx","onSwipeFromRight");
   sendKeyCode(4);
   Log.i("gyx","sendKeyCode 4");
 
            if (mNavigationBar != null && mNavigationBarPosition == NAV_BAR_RIGHT) {
              requestTransientBars(mNavigationBar);
            }
          }
          @Override
          public void onSwipeFromLeft() {
   Log.i("gyx","onSwipeFromLeft");
            if (mNavigationBar != null && mNavigationBarPosition == NAV_BAR_LEFT) {
              requestTransientBars(mNavigationBar);
            }
          }
          @Override
          public void onFling(int duration) {
            if (mPowerManagerInternal != null) {
              mPowerManagerInternal.powerHint(
                  PowerHint.INTERACTION, duration);
            }
          }
          @Override
          public void onDebug() {
            // no-op
          }
          @Override
          public void onDown() {
            mOrientationListener.onTouchStart();
          }
          @Override
          public void onUpOrCancel() {
            mOrientationListener.onTouchEnd();
          }
          @Override
          public void onMouseHoverAtTop() {
            mHandler.removeMessages(MSG_REQUEST_TRANSIENT_BARS);
            Message msg = mHandler.obtainMessage(MSG_REQUEST_TRANSIENT_BARS);
            msg.arg1 = MSG_REQUEST_TRANSIENT_BARS_ARG_STATUS;
            mHandler.sendMessageDelayed(msg, 500);
          }
          @Override
          public void onMouseHoverAtBottom() {
            mHandler.removeMessages(MSG_REQUEST_TRANSIENT_BARS);
            Message msg = mHandler.obtainMessage(MSG_REQUEST_TRANSIENT_BARS);
            msg.arg1 = MSG_REQUEST_TRANSIENT_BARS_ARG_NAVIGATION;
            mHandler.sendMessageDelayed(msg, 500);
          }
          @Override
          public void onMouseLeaveFromEdge() {
            mHandler.removeMessages(MSG_REQUEST_TRANSIENT_BARS);
          }
        });

代碼中監(jiān)聽了手勢操作,其中onSwipeFromRight()就是當(dāng)從屏幕的右側(cè)向左滑動時會觸發(fā),只要在這里加入返回的功能即可;

實現(xiàn)返回按鍵的功能代碼如下

private void sendKeyCode(final int keyCode) {
    new Thread(new Runnable() {
      @Override
      public void run() {
        try {
          // 創(chuàng)建一個Instrumentation對象
          Instrumentation inst = new Instrumentation();
          // 調(diào)用inst對象的按鍵模擬方法
          inst.sendKeyDownUpSync(keyCode);
        } catch (Exception e) {
          e.printStackTrace();
        }
      }
    }).start();
  }

總結(jié)

到此這篇關(guān)于Android PhoneWindowManager監(jiān)聽屏幕右側(cè)向左滑動實現(xiàn)返回功能的文章就介紹到這了,更多相關(guān)Android PhoneWindowManager監(jiān)聽屏幕右側(cè)向左滑動實現(xiàn)返回功能內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!

相關(guān)文章

最新評論