isChecked（）方法总是返回false - UIAUTOMATOR

Question

她正在尝试检查AirPlaneMode复选框是否已准备就绪，如果没有，则点击。但它总是点击checkBox而不管它是否被点击：

无法弄清楚我在做错的地方。

代码：

public class AirPlaneModeHandler extends UiAutomatorTestCase{

    //private Context context;
    private int isAiplaneEnables;


    private void executeShellCommand(String paramString)
    {
        try 
        {           
            Process p = Runtime.getRuntime().exec(paramString);
            p.waitFor();
            Thread.sleep(1000L);
            return ;
        } 
        catch (Exception localException){}      
    }



    public void startTest() {
           try {

               //isAiplaneEnables = Settings.System.getInt(getContentResolver(),Settings.Global.AIRPLANE_MODE_ON,0);
               // toggleAiplaneMode();

               executeShellCommand("am start -n com.android.settings/.Settings");

               Thread.sleep(1000L);
               UiObject moreBtn = new UiObject(new UiSelector().index(4));
               if(moreBtn!=null) {
                    moreBtn.click();
               }

               Thread.sleep(1000L);

               UiObject object = new UiObject(new UiSelector().text("Airplane mode"));
               if(object!=null) {
                   if(!object.isChecked())
                       object.click();
               }


             } catch (Exception localException) {
                // Log.d("POST", localException.getMessage());

              }

        }

}