是否可以仅使用搜索小部件 (SearchView) 传递搜索上下文数据?
Is it possible to pass search context data using the Search Widget (SearchView) only?
根据 official documentation,提供搜索界面的方法有两种:使用搜索对话框或 SearchView
小部件。我想注意使用这两种方式传递搜索上下文数据。
因此,documentation 表示:
..you can provide additional data in the intent that the system sends to
your searchable activity. You can pass the additional data in the
APP_DATA Bundle, which is included in the ACTION_SEARCH intent.
To pass this kind of data to your searchable activity, override the
onSearchRequested() method for the activity from which the user can
perform a search, create a Bundle with the additional data, and call
startSearch() to activate the search dialog. For example:
@Override
public boolean onSearchRequested() {
Bundle appData = new Bundle();
appData.putBoolean(SearchableActivity.JARGON, true);
startSearch(null, false, appData, false);
return true;
}
..Once the user submits a query, it's delivered to your searchable
activity along with the data you've added. You can extract the extra
data from the APP_DATA Bundle to refine the search. For example:
Bundle appData = getIntent().getBundleExtra(SearchManager.APP_DATA);
if (appData != null) {
boolean jargon = appData.getBoolean(SearchableActivity.JARGON);
}
这是指搜索对话框。那么搜索小部件呢?
是否可以仅使用 SearchView
小部件传递搜索上下文数据?
希望有人能给出明确的解释and/or建议另一种或类似的方法来实现目标。
谢谢!
如果设计符合您的需要,您可以单独使用SearchView,并为其添加一个OnQueryTextListener,并在那里进行处理。不需要任何其他东西,不需要 Intents、Meta-tags,也不需要 XML 文件。我已经做过几次了,文档对此有点不清楚。
我找到了解决办法。甚至两个解决方案!
他们不需要调用 onSearchRequested()
因此根本没有搜索对话框:)
首先,我提供一些创建搜索界面的常用步骤,然后给出源问题的解决方案。
我们通过使用以下代码创建 res/menu/options_menu.xml
文件来将搜索视图添加到应用栏:
<?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"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity" >
<item
android:id="@+id/action_search"
android:icon="@drawable/ic_action_search"
android:title="@string/search_string"
app:showAsAction="collapseActionView|ifRoom"
app:actionViewClass="android.support.v7.widget.SearchView" />
</menu>
在 res/xml/searchable.xml
文件中创建可搜索配置:
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint" />
在 AndroidManifest.xml
中声明两个活动:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.searchinterface">
<application
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".SearchableActivity"
android:label="@string/app_name"
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>
创建一个 Searchable Activity,我们在其中处理从 MainActivity
传递的 ACTION_SEARCH
意图和搜索上下文数据。我们从 APP_DATA
Bundle
中提取额外的数据来优化搜索:
public class SearchableActivity extends AppCompatActivity {
public static final String JARGON = "com.example.searchinterface.jargon";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_searchable);
handleIntent(getIntent());
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
handleIntent(intent);
}
private void handleIntent(Intent intent) {
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
// use the query to search the data somehow
Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA);
if (appData != null) {
boolean jargon = appData.getBoolean(SearchableActivity.JARGON);
// use the context data to refine our search
}
}
}
}
现在,我们需要实施 MainActivity
class。因此,我们扩充菜单并配置 SearchView
元素。我们还需要设置 SearchView.OnQueryTextListener
并实现它的方法,尤其是 onQueryTextSubmit()
。它在用户按下提交按钮时被调用,它包含将搜索上下文数据传递给 SearchableActivity
的主要逻辑。
最后,我们到达了主要答案部分。正如我所说,有两种解决方案:
1.创建带有 Bundle
extra 的意图并手动将其发送到 SearchableActivity
;
这里是包含所有必要内容的 MainActivity
:
public class MainActivity extends AppCompatActivity implements SearchView.OnQueryTextListener {
private SearchView mSearchView;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.options_menu, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
// associate searchable configuration with the SearchView
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
mSearchView.setSearchableInfo(searchManager.getSearchableInfo(
new ComponentName(this, SearchableActivity.class)));
mSearchView.setOnQueryTextListener(this);
return true;
}
@Override
public boolean onQueryTextSubmit(String query) {
Intent searchIntent = new Intent(this, SearchableActivity.class);
searchIntent.putExtra(SearchManager.QUERY, query);
Bundle appData = new Bundle();
appData.putBoolean(SearchableActivity.JARGON, true); // put extra data to Bundle
searchIntent.putExtra(SearchManager.APP_DATA, appData); // pass the search context data
searchIntent.setAction(Intent.ACTION_SEARCH);
startActivity(searchIntent);
return true; // we start the search activity manually
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
}
感谢。
第二种解法也放在onQueryTextSubmit()
中(但不是必须的):
2。创建搜索上下文数据 Bundle
并将其传递给 SearchView
.
的 setAppSearchData()
方法
因此,我们不需要创建和传递整个搜索意图并启动相应的可搜索 activity,系统会处理它。
这是另一个代码片段:
/*
You may need to suppress the “restrictedApi” error that you could possibly
receive from this method "setAppSearchData(appData)”.I had to
I’m targetSdkVersion 26. I’m also using Android Studio 3
with the new gradle plugin, which might be causing this.
If you’re not running Android Studio 3 you can simply put
“//noinspection RestrictedApi"
right above the line: mSearchView.setAppSearchData(appData);
*/
@SuppressWarnings("RestrictedApi")
@Override
public boolean onQueryTextSubmit(String query) {
Bundle appData = new Bundle();
appData.putBoolean(SearchableActivity.JARGON, true); // put extra data to Bundle
mSearchView.setAppSearchData(appData); // pass the search context data
return false; // we do not need to start the search activity manually, the system does it for us
}
感谢。
注意:只支持库版本SearchView
(android.support.v7.widget.SearchView
)包含setAppSearchData()
方法,请注意。
根据 official documentation,提供搜索界面的方法有两种:使用搜索对话框或 SearchView
小部件。我想注意使用这两种方式传递搜索上下文数据。
因此,documentation 表示:
..you can provide additional data in the intent that the system sends to your searchable activity. You can pass the additional data in the APP_DATA Bundle, which is included in the ACTION_SEARCH intent.
To pass this kind of data to your searchable activity, override the onSearchRequested() method for the activity from which the user can perform a search, create a Bundle with the additional data, and call startSearch() to activate the search dialog. For example:
@Override public boolean onSearchRequested() { Bundle appData = new Bundle(); appData.putBoolean(SearchableActivity.JARGON, true); startSearch(null, false, appData, false); return true; }
..Once the user submits a query, it's delivered to your searchable activity along with the data you've added. You can extract the extra data from the APP_DATA Bundle to refine the search. For example:
Bundle appData = getIntent().getBundleExtra(SearchManager.APP_DATA); if (appData != null) { boolean jargon = appData.getBoolean(SearchableActivity.JARGON); }
这是指搜索对话框。那么搜索小部件呢?
是否可以仅使用 SearchView
小部件传递搜索上下文数据?
希望有人能给出明确的解释and/or建议另一种或类似的方法来实现目标。
谢谢!
如果设计符合您的需要,您可以单独使用SearchView,并为其添加一个OnQueryTextListener,并在那里进行处理。不需要任何其他东西,不需要 Intents、Meta-tags,也不需要 XML 文件。我已经做过几次了,文档对此有点不清楚。
我找到了解决办法。甚至两个解决方案!
他们不需要调用 onSearchRequested()
因此根本没有搜索对话框:)
首先,我提供一些创建搜索界面的常用步骤,然后给出源问题的解决方案。
我们通过使用以下代码创建 res/menu/options_menu.xml
文件来将搜索视图添加到应用栏:
<?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"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity" >
<item
android:id="@+id/action_search"
android:icon="@drawable/ic_action_search"
android:title="@string/search_string"
app:showAsAction="collapseActionView|ifRoom"
app:actionViewClass="android.support.v7.widget.SearchView" />
</menu>
在 res/xml/searchable.xml
文件中创建可搜索配置:
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint" />
在 AndroidManifest.xml
中声明两个活动:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.searchinterface">
<application
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".SearchableActivity"
android:label="@string/app_name"
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>
创建一个 Searchable Activity,我们在其中处理从 MainActivity
传递的 ACTION_SEARCH
意图和搜索上下文数据。我们从 APP_DATA
Bundle
中提取额外的数据来优化搜索:
public class SearchableActivity extends AppCompatActivity {
public static final String JARGON = "com.example.searchinterface.jargon";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_searchable);
handleIntent(getIntent());
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
handleIntent(intent);
}
private void handleIntent(Intent intent) {
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
// use the query to search the data somehow
Bundle appData = intent.getBundleExtra(SearchManager.APP_DATA);
if (appData != null) {
boolean jargon = appData.getBoolean(SearchableActivity.JARGON);
// use the context data to refine our search
}
}
}
}
现在,我们需要实施 MainActivity
class。因此,我们扩充菜单并配置 SearchView
元素。我们还需要设置 SearchView.OnQueryTextListener
并实现它的方法,尤其是 onQueryTextSubmit()
。它在用户按下提交按钮时被调用,它包含将搜索上下文数据传递给 SearchableActivity
的主要逻辑。
最后,我们到达了主要答案部分。正如我所说,有两种解决方案:
1.创建带有 Bundle
extra 的意图并手动将其发送到 SearchableActivity
;
这里是包含所有必要内容的 MainActivity
:
public class MainActivity extends AppCompatActivity implements SearchView.OnQueryTextListener {
private SearchView mSearchView;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.options_menu, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
// associate searchable configuration with the SearchView
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
mSearchView.setSearchableInfo(searchManager.getSearchableInfo(
new ComponentName(this, SearchableActivity.class)));
mSearchView.setOnQueryTextListener(this);
return true;
}
@Override
public boolean onQueryTextSubmit(String query) {
Intent searchIntent = new Intent(this, SearchableActivity.class);
searchIntent.putExtra(SearchManager.QUERY, query);
Bundle appData = new Bundle();
appData.putBoolean(SearchableActivity.JARGON, true); // put extra data to Bundle
searchIntent.putExtra(SearchManager.APP_DATA, appData); // pass the search context data
searchIntent.setAction(Intent.ACTION_SEARCH);
startActivity(searchIntent);
return true; // we start the search activity manually
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
}
感谢。
第二种解法也放在onQueryTextSubmit()
中(但不是必须的):
2。创建搜索上下文数据 Bundle
并将其传递给 SearchView
.
setAppSearchData()
方法
因此,我们不需要创建和传递整个搜索意图并启动相应的可搜索 activity,系统会处理它。
这是另一个代码片段:
/*
You may need to suppress the “restrictedApi” error that you could possibly
receive from this method "setAppSearchData(appData)”.I had to
I’m targetSdkVersion 26. I’m also using Android Studio 3
with the new gradle plugin, which might be causing this.
If you’re not running Android Studio 3 you can simply put
“//noinspection RestrictedApi"
right above the line: mSearchView.setAppSearchData(appData);
*/
@SuppressWarnings("RestrictedApi")
@Override
public boolean onQueryTextSubmit(String query) {
Bundle appData = new Bundle();
appData.putBoolean(SearchableActivity.JARGON, true); // put extra data to Bundle
mSearchView.setAppSearchData(appData); // pass the search context data
return false; // we do not need to start the search activity manually, the system does it for us
}
感谢。
注意:只支持库版本SearchView
(android.support.v7.widget.SearchView
)包含setAppSearchData()
方法,请注意。