今天在做搜索框的时候、遇到需要获取焦点之后做一些事情、实现方法也很简单、那就是绑定OnFocusChangeListener事件、实现 onFocusChange(View v, boolean hasFocus) 方法、第二个参数就是判断得到焦点或失去焦点、从而实现我得想要的效果、代码如下：

EditText searchView = (EditText) findViewById(R.id.search_text);searchView.setOnFocusChangeListener(new android.view.View.        OnFocusChangeListener() {    @Override    public void onFocusChange(View v, boolean hasFocus) {        if (hasFocus) {            // 此处为得到焦点时的处理内容        } else {            // 此处为失去焦点时的处理内容        }    }});

文本框重新获得焦点方法如下

searchView.setFocusable(true);searchView.setFocusableInTouchMode(true);searchView.requestFocus(); searchView.clearFocus();//失去焦点searchView.requestFocus();//获取焦点

 

EditText et = (EditText) findViewById(R.id.et);        et.clearFocus();        et.setFocusable(false);

 

searchEdit.setOnTouchListener(new OnTouchListener() {            public boolean onTouch(View v, MotionEvent event) {                // TODO Auto-generated method stub                searchEdit.setFocusable(true);                searchEdit.setFocusableInTouchMode(true);                searchEdit.requestFocus();                Intent intent = new Intent(getActivity(),SearchActivity.class);                startActivity(intent);                return false;            }        });