android - 在 Spinner 外部单击关闭 Spinner

Question

我想在点击微调器外部后关闭 Android 微调器。这可能吗？

Answer 1

我在这方面运气不错，即使它不能完全奏效。

Spinner 适配器的获取 View :

public View getView(int position, View v, ViewGroup parent) {
   if (v == null) {
      LayoutInflater mLayoutInflater = mActivity.getLayoutInflater();
      v = mLayoutInflater.inflate(R.layout.user_row, null);
   }

   View tempParent = (View) parent.getParent().getParent().getParent();
   tempParent.setOnTouchListener(new MyOnTouchListener(mActivity));
   mActivity.setOpen(true);

   User getUser = mUsers.get(position);
   return v;
}

ontouch 监听器:

public class MyOnTouchListener implements OnTouchListener{
   private MyActivity mOverall;
   public MyTouchListener(MyActivity overall) {
      mOverall = overall;
   }

   public boolean onTouch(View v, MotionEvent event) {
      if (mOverall.getOpen()) {
         mOverall.getWindow().setContentView(R.layout.main); //reset your activity             screen
         mOverall.initMainLayout(); //reset any code.  most likely what's in your oncreate
      }
      return false;
   }  
}

项目选择监听器:

public class MySelectedListener implements OnItemSelectedListener {
   public void onItemSelected(AdapterView<?> parent, View view, int pos,
    long id) {
     setUser(pos); //or whatever you want to do when the item is selected
     setOpen(false);         
  }
  public void onNothingSelected(AdapterView<?> parent) {}
}

Activity

你的微调器 Activity 应该有一个全局变量 mOpen 和 get 和 set 方法。这是因为即使在列表关闭后，ontouch 监听器也往往会保持打开状态。

该方法的局限性:

如果您触摸微调器和选项之间或选项的一侧，它会关闭。触摸微调器上方和选项下方仍然不会将其关闭。