Android在TextView或EditView中选择一个单词

时间:2010-11-30 19:18:56

标签: android textview android-edittext

我试图找出一种简单的方法让用户选择一个单词,最好是长按TextView中的单词。基本上,我有一个文本填充文本,我希望用户能够长按该单词,然后显示上下文菜单,以便我可以执行数据库搜索?这可能吗?我也可以切换到EditText,只要我可以使它看起来像TextView。有意义吗?

感谢。

1 个答案:

答案 0 :(得分:0)

很简单。

首先创建TextView和registerForContextMenu():

private AdapterContextMenuInfo info;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.main);

   TextView text = (TextView) findViewById(R.id.txtbtn);
   text.setText("Click Me!");

   registerForContextMenu(text);
}

然后构建您的ContextMenu:

@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    info = (AdapterView.AdapterContextMenuInfo)menuInfo;
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.context_menu, menu);
}   
@Override
public boolean onContextItemSelected(MenuItem item) {
    switch (item.getItemId()) {

    case R.id.call: 

        String phone="555-555-555";
        String toDial="tel:"+phone.toString();

        Uri uri = Uri.parse(toDial);
        Intent it = new Intent(Intent.ACTION_DIAL, uri);  
        startActivity(it);  

    return true;

    default:
    return super.onContextItemSelected(item);
    }
}

<强> context_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu
  xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/call"
          android:title="CALL" />
</menu>