【移动应用开发技术】Android开发中怎么实现一个输入框提示功能

【移动应用开发技术】Android开发中怎么实现一个输入框提示功能

这篇文章给大家介绍Android开发中怎么实现一个输入框提示功能，内容非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。可以使用cursor来动态加载AutoCompleteTextView的数据，从而实现时时搜索提示，要实现动态加载，只用重写一个类继承于CursorAdapter，然后设定在AutoCompleteTextView上就行了。AutoCompleteTextView

editNumber

=

(AutoCompleteTextView)findViewById(R.id.edit_number);

Cursor

cursor

=

getContentResolver()(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,

null,

null,

null,

null);

ContactListAdapter

listAdapter

=

new

ContactListAdapter(this,

cursor);

editNumber.setAdapter(listAdapter);ContactListAdapter.java中的核心代码如下：重写newView方法public

View

newView(Context

context,

Cursor

cursor,

ViewGroup

parent)

{

final

LayoutInflater

inflater

=

LayoutInflater.from(context);

final

View

view

=

(View)inflater.inflate(

R.layout.auto_complete,

parent,

false);

TextView

txtName

=

(TextView)view.findViewById(R.id.txt_name);

txtName.setText(cursor.getString(0));

TextView

txtNumber

=

(TextView)view.findViewById(R.id.txt_number);

txtNumber.setText(cursor.getString(1));

TextView

txtType

=

(TextView)view.findViewById(R.id.txt_type);

String[]

arrType

=

SmsConstant.ARR_CONTACTS_TYPE;

if(cursor.getint(2)

>

3)

{

txtType.setText(arrType[0]);

}

else

{

txtType.setText(arrType[cursor.getint(2)]);

}

return

view;

}重写bindView方法，public

void

bindView(View

view,

Context

context,

Cursor

cursor)

{

TextView

txtName

=

(TextView)view.findViewById(R.id.txt_name);

txtName.setText(cursor.getString(0));

TextView

txtNumber

=

(TextView)view.findViewById(R.id.txt_number);

txtNumber.setText(cursor.getString(1));

TextView

txtType

=

(TextView)view.findViewById(R.id.txt_type);

String[]

arrType

=

SmsConstant.ARR_CONTACTS_TYPE;

if(cursor.getint(2)

>

3)

{

txtType.setText(arrType[0]);

}

else

{

txtType.setText(arrType[cursor.getint(2)]);

}

}点击弹出的Listview列表后的返回值：public

String

convertToString(Cursor

cursor)

{}执行搜索的sql语句，返回一个Cursor加载到弹出的Listview上public

Cursor

runQueryOnBackgroundThread(CharSequence

constraint)

{}在此所返回的Cursor结果，