微調按鈕單擊無響應點擊事件：

Question

我有一個微調器，當點擊一個按鈕時會下降。但是當我試圖設置onItemSelectedListener時，它沒有采取點擊事件。

spnrLocation.setOnItemSelectedListener(new OnItemSelectedListener() { 

      @Override 
      public void onItemSelected(AdapterView<?> parent, View arg1, 
        int arg2, long arg3) { 
       System.out.println("location clicked" + arg2); 
       edtLocation.setText(parent.getItemAtPosition(arg2).toString()); 
       System.out.println("wfefe" 
         + parent.getItemAtPosition(arg2).toString()); 
      } 

      @Override 
      public void onNothingSelected(AdapterView<?> arg0) { 
      } 
     }); 

Answer 1

任何View支持android:clickable屬性（它可以讓你做任何View更像一個Button）。 還有android：focusable。

Answer 2

// try this 
spnrLocation.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
      @Override 
      public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { 
       System.out.println("location clicked" + i); 
       edtLocation.setText(spnrLocation.getSelectedItem().toString()); 
       System.out.println("wfefe" 
         + spnrLocation.getSelectedItem().toString()); 
      } 
     });