public boolean onKey(android.view.View p3, int p4, android.view.KeyEvent p5)
    {
        if ((p5.getAction() == 0) && (p4 == 4)) {
            if ((System.currentTimeMillis() - xtbg.oa_app.MainActivity.access$300(this.this$0)) <= 300) {
                xtbg.oa_app.MainActivity.access$400(this.this$0).loadUrl(javascript:back());
            } else {
                xtbg.oa_app.MainActivity.access$302(this.this$0, System.currentTimeMillis());
                if (!xtbg.oa_app.MainActivity.access$400(this.this$0).canGoBack()) {
                    xtbg.oa_app.MainActivity.access$400(this.this$0).loadUrl(javascript:back());
                } else {
                    xtbg.oa_app.MainActivity.access$400(this.this$0).loadUrl(javascript:back());
                }
            }
        }
        return 1;
    }