Android的焦点更改

Question

我想，当用户改变从EditText上到我要检查的EditText上例如内容的另一项目集中更新一个EditText大于10的号码，如果因此它更改为10

我该怎么做。

Answer 1

EditText ET =(EditText)findViewById(R.id.yourtextField); 
ET.setOnFocusChangeListener(new OnFocusChangeListener() { 
      public void onFocusChange(View arg0, boolean arg1) { 

String myText = ET.getText(); 
//Do whatever 

} 

Answer 2

设置setOnFocusChangeListener您的EditText ......

在这个线程

editText.setOnFocusChangeListener(new OnFocusChangeListener() { 

      @Override 
      public void onFocusChange(View v, boolean hasFocus) { 

       if(!hasFocus){ 
       //this if condition is true when edittext lost focus... 
       //check here for number is larger than 10 or not 
        editText.setText("10"); 
       } 
      } 
     });