Question

我是android的新手。我只是想为我的应用程序制作一个简单的搜索功能。我的应用程序包含一个ListView和一个SearchView用于搜索。我的ListView内容使用自定义适配器从字符串列表中列出，该适配器是扩展BaseAdapter

现在，我想要做的是，我想从ListView中搜索任何记录例如，如果我有一些像

这样的记录

aa abb ...

所以，当我输入一些像

这样的记录名称时

列表视图应该列出从...开始的记录。我已经为此引用了一些内容，我得到了addTextChangedListener但是，我不知道该怎么做？

并且，我们可以通过点击按钮

来实现相同的功能

有没有人对此有任何想法？提前致谢

MainActivity.java

public class MainActivity extends ActionBarActivity {

    ListView list ;
    private SearchView mSearchView;


    String [] a =   {"aa","abb","cc","dd","ee","ff","gg","hh","ii","jj","kk","ll"};
    String [] b =   {"1","2","3","4","5","6","7","8","9","10","11","12"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mSearchView = (SearchView) findViewById(R.id.search_view);
        mSearchView.setOnQueryTextListener(new OnQueryTextListener() {

            @Override
            public boolean onQueryTextSubmit(String query) {
                // TODO Auto-generated method stub
                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {
                if (TextUtils.isEmpty(newText)) {
                    list.clearTextFilter();
                } else {
                    Log.i("WSM",newText);
                    list.setFilterText(newText.toString());                 
                }
                return true;

            }
        });


        list = (ListView) findViewById(R.id.lista);
        list.setTextFilterEnabled(true);
        list.setAdapter(new MyAdapter(this, a, b));
        setupSearchView();
    }

     private void setupSearchView() {
            mSearchView.setIconifiedByDefault(false);
            mSearchView.setSubmitButtonEnabled(true); 
            mSearchView.setQueryHint("Search Here");
        }

    class SingleRow{
        String  ssid;
        String  pass;

        public SingleRow (String ssid, String pass){
            this.ssid = ssid;
            this.pass = pass;
        }
    }

    class MyAdapter extends BaseAdapter {

        ArrayList<SingleRow> myList ;
        Context c;


        public MyAdapter (Context c, String[] ssid, String [] pass){
            this.c = c;
            myList = new ArrayList<SingleRow>();
            for (int i = 0; i<ssid.length; i++){
            myList.add(new SingleRow(ssid[i],pass[i]));
            }
        }

        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return myList.size();
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return myList.get(position);
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            LayoutInflater inflater = (LayoutInflater) c.getSystemService(LAYOUT_INFLATER_SERVICE);
            View row = inflater.inflate(R.layout.singlerow, parent ,false);

            TextView TV_ssid = (TextView) row.findViewById(R.id.ssid);
            TextView TV_pass = (TextView) row.findViewById(R.id.pass);

            SingleRow tmp = myList.get(position);
            TV_ssid.setText(tmp.ssid);
            TV_pass.setText(tmp.pass);

            return row;
        }

    }

}

singlerow.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal" >

    <LinearLayout
        android:layout_width="183dp"
        android:layout_height="wrap_content"
        android:layout_weight="0.82"
        android:orientation="vertical" >

        <TextView
            android:paddingTop="10sp"
            android:id="@+id/ssid"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="SSID: "
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:typeface="monospace" />

        <TextView
            android:id="@+id/pass"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="PASS:"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:paddingBottom="10sp"
            android:typeface="monospace"/>
    </LinearLayout>

    <ImageButton
        android:id="@+id/imageButton1"
        android:layout_width="56dp"
        android:layout_height="49dp"
        android:layout_gravity="center"
        android:src="@drawable/abc_ic_menu_moreoverflow_normal_holo_light" />

</LinearLayout>

main_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <SearchView
        android:id="@+id/search_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <ListView
        android:id="@+id/lista"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

Answer 1

对于搜索功能，我建议您使用此组件：

https://github.com/matessoftwaresolutions/AndroidFilterableList

这使您可以非常简单的方式过滤所需的任何内容。动态更改过滤器等。

您必须修改代码才能使其适应这种工作方式......但我认为这值得。

看看样本!!

我希望这会对你有所帮助。

搜索（SearchView）Listview的功能

1 个答案: