EditText点击在ListView中失去焦点

当点击EditText，键盘弹出会使得ListView重新调用getView()方法，EditText在此时会失去焦点。我们只需要在getView()方法中保存点击的EditText位置，并让EditText重新获取到焦点就可以。

private currentEditPosition  = -;//
 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
    viewHolder.editText.setOnTouchListener(new View.OnTouchListener() {
                    @Override
                    public boolean onTouch(View v, MotionEvent event) {
                        switch(event.getAction()){
                            case  MotionEvent.ACTION_UP:
                                  currentEditPosition = position;
                            break;
                        }
                        return false;              
                });
     viewHolder.editText.clearFocus();
     if (currentEditPosition == position) {
         viewHolder.editText.requestFocus();  //重新获取焦点
         viewHolder.editText.setSelection(viewHolder.editText.getText().length()); //设置光标位置      
    }
}