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senlinwuran
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android 再按一次后退键退出应用程序

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private static Boolean isExit = false;
    private static Boolean hasTask = false;
    Timer tExit = new Timer();
    TimerTask task = new TimerTask() {
         
        @Override
        public void run() {
            isExit = false;
            hasTask = true;
        }
    };
     
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        System.out.println("TabHost_Index.java onKeyDown");
        if (keyCode == KeyEvent.KEYCODE_BACK) {
background-image: none !important; background-color: initial !important; text-align: left !important; float: none !important; vertical-align: basel
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