无法让操作栏中的搜索视图工作 [英] Cannot get searchview in actionbar to work
问题描述
我对 java 和 android 开发还很陌生；我一直在开发一个应用程序，我想要一个带有 SearchView 的操作栏.我看过谷歌的例子，但我无法让它工作.我一定是做错了什么，我即将放弃应用程序开发 :D 我已经搜索过，但没有找到任何有用的东西.也许你们可以帮助我:)
I am pretty new to java and android development; and I have been working on an app in which I want an action bar with a SearchView. I have looked at the google examples but I can not get it to work. I must be doing something wrong and I'm about to give up on app-development :D I have searched but I have not found anything helpful. Maybe you guys can help me :)
问题:我让搜索视图按原样打开，但之后什么也没发生，我注意到我的 searchManager.getSearchableInfo(getComponentName()) 返回空值.此外，我给出的提示没有显示在我的搜索框中，这使我相信该应用程序可能找不到我的 searchable.xml?话不多说:)
The problem: I get the search view to open as it should, but after that nothing happens at all, I've noticed that my searchManager.getSearchableInfo(getComponentName()) returns null. Also my hint that I've given is not displayed in my search box which leads me to believing that maybe the app can't find my searchable.xml? Enough talk :)
MainActivity.java
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
// Get the SearchView and set the searchable configuration
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.menu_search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
}
searchable.xml
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:hint="@string/search_hint"
android:label="@string/app_label">
</searchable>
Androidmanifest
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.searchapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity android:name=".SearchableActivity" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data android:name="android.app.searchable"
android:resource="@xml/searchable"/>
</application>
</manifest>
SearchableActivity.java
package com.example.searchapp;
import android.app.ListActivity;
import android.app.SearchManager;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
public class SearchableActivity extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.search);
// Get the intent, verify the action and get the query
Intent intent = getIntent();
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
doMySearch(query);
}
}
private void doMySearch(String query) {
Log.d("Event",query);
}
}
这里是所引用项目的链接，如果有人能帮助我解决这个问题，我将永远感激不尽！
And here is a link to the referred project, I would be eternally grateful if someone was to help me with this!
推荐答案
您的问题出在您的 AndroidManifest 中.我几乎和你一样，因为这是我按照文档得到的.但不清楚或错误.
Your problem is in your AndroidManifest. I had it almost exactly as you do, because that is what I get following the documentation. But it is unclear or mistaken.
查看 API Demos 源，我发现android.app.searchable"元数据必须在您的结果"活动中，并且在主活动(或您放置 SearchView 的活动)中指向另一个一个带有android.app.default_searchable".
Watching at the API Demos source I found that the "android.app.searchable" metadata must go in your "results" activity, and in the main activity (or the activity where you place the SearchView) you point to the other one with "android.app.default_searchable".
您可以在以下文件中看到它，这是我测试项目中的 Manifest:
You can see it in the following file, which is the Manifest from my test project:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.test"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchActivity" />
</activity>
<activity
android:name=".SearchActivity"
android:label="@string/app_name" >
<!-- This intent-filter identifies this activity as "searchable" -->
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<!-- This metadata entry provides further configuration details for searches -->
<!-- that are handled by this activity. -->
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
</application>
同样重要的是 searchable.xml 中的提示和标签是引用，而不是硬编码的字符串.
It is also important that the hint and label in the searchable.xml are references, and not hardcoded strings.
希望它能解决您的问题.我花了一整天才弄明白:(
I hope it solves your problem. It took me all day to figure it out :(
这篇关于无法让操作栏中的搜索视图工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
