Android可搜索无法打开

嗨,我尝试在我的应用程序中使用可搜索的活动,但是当按下搜索按钮时,没有任何反应

AndroidManifest.xml中

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.test.test" android:versionCode="1" android:versionName="1.0.0" android:configChanges="keyboardHidden|orientation">
        <uses-sdk android:minSdkVersion="7"/>
        <application android:icon="@drawable/icon" android:label="Test">
            <activity android:name=".Test" android:label="Test" android:debuggable="true" android:theme="@android:style/Theme.NoTitleBar" android:launchMode="singleTask">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN"/>
                    <category android:name="android.intent.category.LAUNCHER"/>
                </intent-filter>
            </activity>
            <activity android:name=".Searchable">
                <intent-filter>
                    <action android:name="android.intent.action.SEARCH" />
                    <category android:name="android.intent.category.DEFAULT" />
                </intent-filter>
                <meta-data android:name="android.app.searchable" android:resource="@xml/searchable"/>
            </activity>
            <meta-data android:name="android.app.default_searchable" android:value=".Searchable"/>
        </application>
    </manifest>

Searchable.xml(res / xml / searchable.xml)

<?xml version="1.0" encoding="utf-8"?>
    <searchable xmlns:android="http://schemas.android.com/apk/res/android" android:label="Search" android:hint="Perform Search">
    </searchable>

Searchable.java(src / com / test / test / Searchable.java)

package com.test.test;

import android.app.Activity;
import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;

public class Searchable extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        handleIntent(getIntent());
    }
    @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);
        }
    }
}

TIA,

ng93

解决方法:

您的可搜索活动必须执行某些操作-并实际显示结果.

我只是写了一封我昨天问的问题的答案所建议的Trying to filter a ListView with runQueryOnBackgroundThread but nothing happens – what am I missing?

查看此文档以了解如何与内置搜索支持集成：Using the Android Search Dialog,并查看有关如何根据客户类型提供建议的本文：Adding Custom Suggestions

获取查询字符串后,您的类Searchable需要做更多的工作.例如,在获取查询字符串后的活动中,我这样做：

        showResults(query);

该方法如下所示：

private void showResults(String query)  {
    //  Load the list of countries based on the query
    Cursor countryCursor = myDbHelper.getCountryList (query);
    startManagingCursor (countryCursor);

    //  Hook up the query results to the list view
    String[] from = new String[]  {
        WorldInfoDatabaseAdapter.KEY_COUNTRYCODE, WorldInfoDatabaseAdapter.KEY_COUNTRYNAME
    };
    int[] to = new int[]  {
        R.id.countryflag, R.id.countryname
    };
    SimpleCursorAdapter adapter = new SimpleCursorAdapter (this,
            R.layout.country_list_row, countryCursor, from, to);
    adapter.setViewBinder (new FlagViewBinder ());

    myCountryList.setAdapter (adapter);
    myCountryList.setOnItemClickListener (new OnItemClickListener () {

        @Override
        public void onItemClick (AdapterView<?> parent, View view, int position, long id) {
            String countryName = myDbHelper.getCountryByID (id);
            if (countryName == null)  {
                new AlertDialog.Builder (SelectCountryActivity.this).setMessage (
                        "Internal error: Cannot find the country with id'" + id + "'.").show ();

                return;
            }

            //  Package up the country name to return
            Intent newCountryIntent = new Intent (myCountryList.getContext (), WorldInfoActivity.class);
            newCountryIntent.putExtra (WorldInfoActivity.KEY_SELECTED_COUNTRY, countryName);
            startActivity (newCountryIntent);

            startActivity (newCountryIntent);
            finish ();
        }
    });
}

成员myDbHelper在我的数据库中查询已传递查询字符串的国家/地区,并将其显示在列表中.我的活动的布局如下所示：

<?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="fill_parent"
    android:orientation="vertical"
    style="?pageBackground">
    <TextView
        android:id="@+id/selectdlgtitle"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/select_country_title"
        style="?dlgTitle" />
    <ListView
        android:id="@+id/countrylist"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:cacheColorHint="#00000000"
        android:padding="2px"/>
    </LinearLayout>

您可能不需要setViewBinder调用就可以执行操作-我需要这样做,因为我正在将国家代码字段转换为标记图标.

标签：searchable,android,search
来源： https://codeday.me/bug/20191013/1907325.html