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搜索SearchView
|Android

菜单栏添加搜索功能

  • 布局添加

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    <?xml version="1.0" encoding="utf-8"?>
    <menu xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:app="http://schemas.android.com/apk/res-auto">
        <item
            android:id="@+id/action_search"
            android:icon="@android:drawable/ic_menu_search"
            android:title="搜索"
            app:actionViewClass="android.support.v7.widget.SearchView"
            app:showAsAction="collapseActionView|ifRoom"/>
    </menu>

  • 配置

    • xml/searchable.xml 
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      <?xml version="1.0" encoding="utf-8"?>
      <searchable xmlns:android="http://schemas.android.com/apk/res/android"
                  android:hint="搜索"
                  android:label="@string/app_name"/>

  • AndroidMainifest.xml

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    <manifest package="com.xuie.sharedemo"
              xmlns:android="http://schemas.android.com/apk/res/android">
        ...
        <uses-permission android:name="android.permission.READ_CONTACTS"/>

        <application >
            ...
            <activity
                android:name=".SearchActivity"
                android:launchMode="singleTop">
                <intent-filter>
                    <action android:name="android.intent.action.SEARCH"/>
                </intent-filter>
                <meta-data
                    android:name="android.app.searchable"
                    android:resource="@xml/searchable"/>
            </activity>
        </application>
    </manifest>

  • 加载搜索功能

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@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.search, menu);

    MenuItem item = menu.findItem(R.id.action_search);
    searchView = (SearchView) MenuItemCompat.getActionView(item);
    ...
}

...

@Override
protected void onNewIntent(Intent intent) {
    setIntent(intent);
    handleIntent(intent);
}

private void handleIntent(Intent intent) {
    if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
        String query = intent.getStringExtra(SearchManager.QUERY);
        ...
    }
}

示例

搜索通讯录

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package xxx;

import android.Manifest;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v4.view.MenuItemCompat;
import android.support.v4.widget.SimpleCursorAdapter;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.SearchView;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.inputmethod.InputMethodManager;
import android.widget.AbsListView;
import android.widget.ListView;
import android.widget.Toast;

import butterknife.Bind;
import butterknife.ButterKnife;

public class SearchActivity extends AppCompatActivity {
    public static final String TAG = SearchActivity.class.getSimpleName();

    int READ_CONTACTS_REQUEST_CODE = 11;

    SearchView searchView;
    SimpleCursorAdapter adapter;
    Cursor cursor;

    final String[] PROJECTION = new String[]{
            ContactsContract.CommonDataKinds.Phone._ID,
            ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME_PRIMARY,
            ContactsContract.CommonDataKinds.Phone.NUMBER};

    @Bind(R.id.list_view)
    ListView listView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search);
        ButterKnife.bind(this);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
                != PackageManager.PERMISSION_GRANTED) {
            //申请WRITE_EXTERNAL_STORAGE权限
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_CONTACTS},
                    READ_CONTACTS_REQUEST_CODE);
        } else {
            init();
        }
    }

    private void init() {
        cursor = getContentResolver().query(
                ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                PROJECTION,
                null,
                null,
                null);

        adapter = new SimpleCursorAdapter(
                this,
                android.R.layout.simple_list_item_2, cursor,
                new String[]{
                        ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME_PRIMARY,
                        ContactsContract.CommonDataKinds.Phone.NUMBER
                },
                new int[]{android.R.id.text1, android.R.id.text2},
                0);

        listView.setAdapter(adapter);
        listView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                InputMethodManager imm =
                        (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                if (imm != null) {
                    // 输入法如果是显示状态，那么就隐藏输入法
                    imm.hideSoftInputFromWindow(listView.getWindowToken(), 0);
                }
            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem,
                                 int visibleItemCount, int totalItemCount) {
            }
        });
    }

    @Override
    public void onRequestPermissionsResult(
            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        doNext(requestCode, grantResults);
    }

    private void doNext(int requestCode, int[] grantResults) {
        if (requestCode == READ_CONTACTS_REQUEST_CODE) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Permission Granted
                init();
            } else {
                // Permission Denied
                finish();
            }
        }
    }


    @Override
    protected void onNewIntent(Intent intent) {
        setIntent(intent);
        handleIntent(intent);
    }

    private void handleIntent(Intent intent) {
        if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
            String query = intent.getStringExtra(SearchManager.QUERY);
            doMySearch(query);
        }
    }

    private void doMySearch(String query) {
        Toast.makeText(this, "do search " + query, Toast.LENGTH_SHORT).show();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.search, menu);

        MenuItem item = menu.findItem(R.id.action_search);
        searchView = (SearchView) MenuItemCompat.getActionView(item);

        /*
         * 默认情况下, search widget是"iconified“的，只是用一个图标 来表示它(一个放大镜),
         * 当用户按下它的时候才显示search box . 你可以调用setIconifiedByDefault(false)让search
         * box默认都被显示。 你也可以调用setIconified()让它以iconified“的形式显示。
         */
        searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default
        /*
         * 默认情况下是没提交搜索的按钮，所以用户必须在键盘上按下"enter"键来提交搜索.你可以同过setSubmitButtonEnabled(
         * true)来添加一个提交按钮（"submit" button)
         * 设置true后，右边会出现一个箭头按钮。如果用户没有输入，就不会触发提交（submit）事件
         */
        searchView.setSubmitButtonEnabled(true);
        /*
         * 初始是否已经是展开的状态
         * 写上此句后searchView初始展开的，也就是是可以点击输入的状态，如果不写，那么就需要点击下放大镜，才能展开出现输入框
         */
//        searchView.onActionViewExpanded();
        // 设置search view的背景色
//        searchView.setBackgroundColor(0xff000000);
        /*
         * 默认情况下, search widget是"iconified“的，只是用一个图标 来表示它(一个放大镜),
         * 当用户按下它的时候才显示search box . 你可以调用setIconifiedByDefault(false)让search
         * box默认都被显示。 你也可以调用setIconified()让它以iconified“的形式显示。
         */
        searchView.setIconifiedByDefault(true);
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            /*
             * 在输入时触发的方法，当字符真正显示到searchView中才触发，像是拼音，在舒服法组词的时候不会触发
             *
             * @param queryText
             *
             * @return false if the SearchView should perform the default action
             * of showing any suggestions if available, true if the action was
             * handled by the listener.
             */
            @Override
            public boolean onQueryTextChange(String queryText) {
                Log.d(TAG, "onQueryTextChange = " + queryText);

                String selection = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME_PRIMARY +
                        " LIKE '%" + queryText + "%' " +
                        " OR "
                        + ContactsContract.CommonDataKinds.Phone.SORT_KEY_PRIMARY +
                        " LIKE '%" + queryText + "%' ";
                // String[] selectionArg = { queryText };
                cursor = getContentResolver().query(
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        PROJECTION,
                        selection,
                        null,
                        null);

                adapter.swapCursor(cursor); // 交换指针，展示新的数据
                return true;
            }

            /*
             * 输入完成后，提交时触发的方法，一般情况是点击输入法中的搜索按钮才会触发。表示现在正式提交了
             *
             * @param queryText
             *
             * @return true to indicate that it has handled the submit request.
             * Otherwise return false to let the SearchView handle the
             * submission by launching any associated intent.
             */
            @Override
            public boolean onQueryTextSubmit(String queryText) {
                Log.d(TAG, "onQueryTextSubmit = " + queryText);

                if (searchView != null) {
                    // 得到输入管理对象
                    InputMethodManager imm =
                            (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
                    if (imm != null) {
                        // 这将让键盘在所有的情况下都被隐藏，但是一般我们在点击搜索按钮后，输入法都会乖乖的自动隐藏的。
                        imm.hideSoftInputFromWindow(searchView.getWindowToken(), 0); // 输入法如果是显示状态，那么就隐藏输入法
                    }
                    searchView.clearFocus(); // 不获取焦点
                }
                return true;
            }
        });
        return true;
    }
}

参考

http://www.cnblogs.com/tianzhijiexian/p/4226675.html

文章作者: 二十I邊界
文章链接: https://xuie0000.com/post/2016-01-30-2019/搜索SearchView.html
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搜索SearchView