I am new in android and I am working with a search related feature. After read the tutorial I have some questions:
1 Does the SearchableActivity
unique in an application?
It seems that 3 steps are required to setup the search feature(from the android developer guide):
1)create the SearchableActivity
to receive the search keyword.
2)make the SearchableActivity
to accept the ACTION_SEARCH intent
3)specify the searchable configuration to use, in a element.
Then I wonder if all the search related job will be delegated to the SearchableActivity
?
And suppose I have two MainActivity
and MainActivityTwo
, both of them make a SearchView
inside the action bar.
The AndroidMinefset.xml:
<activity android:name="com.app.activity.MainActivityTwo" />
<activity android:name="com.app.activity.MainActivity" />
<activity android:name="com.app.activity.SearchableActivity"
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>
xml/search.xml:
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:hint="@string/search_hint"
android:label="@string/app_name" >
</searchable>
And register the search configuration(serchableInfo) toSerchView
:
.MainActivity
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.u_action_menu_map, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
return super.onCreateOptionsMenu(menu);
}
This does not work, it seems that there is no serchableInfo bound with the current Activity(MainActivity
).
Even I changed to this:
searchView.setSearchableInfo(searchManager.getSearchableInfo(new ComponentName("com.app.activity", "SearchableActivity")));
It still cannot find the searchableInfo.
After I add the search related configuration to MainActivity
:
<activity android:name="com.app.activity.MainActivityTwo" />
<activity android:name="com.app.activity.SearchableActivity" />
<activity android:name="com.app.activity.MainActivity"
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>
This worked. WTF.
I always thought that the Activity provide the Search UI and the Activity handle the input are different, but after my test it seems that they are the same Activity, that't to say the user input are submit to the Activity itself,but why use the **ing intent to transfer the input data?
2 The search submit
The Search dialog have a search submit button at the right of the dialog:
But there is nothing inside the SearchView
so how to submit the search in a SearchView
: