AutoCompleteTextView自动提示联系人信息

桃扇骨 2022-08-19 13:25 226阅读 0赞

效果图:  
![这里写图片描述][20160117225622973]

布局文件中定义:  
AutoCompleteTextView其实就是EditText的一个子类其中封装了一个ListView,所以在布局文件中很EditText的定义很类似:

备注: android:completionThreshold=”1” 当弹出建议框的时候，输入中输入的字符的个数 .默认是2,即输入了两个字符之后才提示。

由于AutoCompleteTextView中封装了一个ListView，所以我们依然需要一个Adapter:

class MyAdapter extends CursorAdapter{
    
            public MyAdapter(Context context, Cursor c) {
                super(context, c);
            }
    
            @Override
            public View newView(Context context, Cursor cursor, ViewGroup parent) {
                View view = View.inflate(context,R.layout.item_newmessgae,null);
                return view;
            }
    
            @Override
            public void bindView(View view, Context context, Cursor cursor) {
              TextView tv_name_actv = (TextView) view.findViewById(R.id.tv_name_actv);
              TextView tv_number_actv = (TextView) view.findViewById(R.id.tv_number_actv);
                tv_name_actv.setText(cursor.getString(cursor.getColumnIndex("display_name")));
                tv_number_actv.setText(cursor.getString(cursor.getColumnIndex("data1")));
            }
            /**
             * 该方法在点击AutoCompleteTextView中弹出的listView时，将返回值设置给 activity
             */
            public CharSequence convertToString(Cursor cursor) {
                return cursor.getString(1)+"<"+cursor.getString(2)+">";
            }
       }

具体的设置:

//AutoCompleteTextView的设置
            MyAdapter myAdapter = new MyAdapter(this,null);
            //此回调返回一个cursor，然后把次cursor设置给CursorAdapter
            autoCompleteTextView.setAdapter(myAdapter);
            myAdapter.setFilterQueryProvider(new FilterQueryProvider() {
                @Override
                public Cursor runQuery(CharSequence charSequence) {
                    Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, new String[]{
       "_id","data1","display_name"}, "data1 like '%"+charSequence+"%'", null, null);
                    return cursor;
                }
            });

代码相对简单，按如上的操作即可完成，至于其中Adapter要设置的item\_view相对简单，此处不再给出。

[20160117225622973]: /images/20220731/ef5a6741614e46699df30f1df6402fe4.png