此方法是告知系统不使用系统软键盘

 		//初始化的时候告知系统不使用系统软键盘
		EditText connect = findViewById(R.id.edit_connect);
        int sdk_int = android.os.Build.VERSION.SDK_INT;
        if (sdk_int <= 10) {
    
    
            connect.setInputType(InputType.TYPE_NULL);
        } else {
    
    
            getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
            try {
    
    
                Class<EditText> cls = EditText.class;
                Method setSoftInputShownOnFocus;
                setSoftInputShownOnFocus = cls.getMethod("setShowSoftInputOnFocus", boolean.class);
                setSoftInputShownOnFocus.setAccessible(true);
                setSoftInputShownOnFocus.invoke(connect, false);
            } catch (Exception e) {
    
    
                e.printStackTrace();
            }
        }