Develop Reference

SearchView is null [duplicate]

This question already has answers here:
How to add a SearchWidget to the ActionBar?
(7 answers)
Closed 4 years ago.
I am trying to use SearchView in app bar. When i run it gives the following error:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: in.backtogodhead, PID: 1876
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.SearchView.setSearchableInfo(android.app.SearchableInfo)' on a null object reference
at in.backtogodhead.MainActivity.onCreateOptionsMenu(MainActivity.java:590)
at android.app.Activity.onCreatePanelMenu(Activity.java:2823)
at android.support.v4.app.FragmentActivity.onCreatePanelMenu(FragmentActivity.java:328)
at android.support.v7.view.WindowCallbackWrapper.onCreatePanelMenu(WindowCallbackWrapper.java:93)
at android.support.v7.app.AppCompatDelegateImplBase$AppCompatWindowCallbackBase.onCreatePanelMenu(AppCompatDelegateImplBase.java:332)
at android.support.v7.app.AppCompatDelegateImplV9.preparePanel(AppCompatDelegateImplV9.java:1370)
at android.support.v7.app.AppCompatDelegateImplV9.doInvalidatePanelMenu(AppCompatDelegateImplV9.java:1650)
at android.support.v7.app.AppCompatDelegateImplV9$1.run(AppCompatDelegateImplV9.java:134)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
The following are the details:
/res/xml/searchable.xml
<?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" >
</searchable>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="test.test">
<application
android:label="#string/app_name"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<meta-data android:name="android.app.default_searchable"
android:value="test.test.SearchActivity" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".SearchActivity"
android:label="#string/title_activity_search"
android:theme="#style/AppTheme">
<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>
/menu/menu_main.xml
<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" >
<item android:id="#+id/search"
android:title="search_title"
android:icon="#android:drawable/ic_search_category_default"
app:showAsAction="ifRoom"
app:actionViewClass="android.support.v7.widget.SearchView" />
</menu>
my MainActivity.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Here shows the MainActivity content
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.menu_main, menu);
SearchView searchView = (SearchView) menu.findItem(R.id.search).getActionView();
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
My SearchActivity.java
public class SearchActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_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);
Toast tag = Toast.makeText(getApplicationContext(), "Testing",Toast.LENGTH_SHORT);
tag.show();
}
}
}
styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppBaseTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="android:windowDisablePreview">true</item>
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
</style>
<style name="AppTheme" parent="AppBaseTheme">
<item name="actionOverflowMenuStyle">#style/OverflowMenu</item>
</style>
</resources>
progaurd-rulses.pro
-keep class android.support.v7.widget.SearchView { *; }
In my question i am doing everything right but still its showing the error. SO i am not able to figure it out

I think your problem is that you use
findViewById(R.id.search) which returns null
Instead you should use
MenuItem searchItem = menu.findItem(R.id.search);
and after
SearchView searchView = MenuItem.getActionView(searchItem);

See this will help you
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
// Associate searchable configuration with the SearchView
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
res/menu/options_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#+id/search"
android:title="#string/search_title"
android:icon="#drawable/ic_search"
android:showAsAction="collapseActionView|ifRoom"
android:actionViewClass="android.widget.SearchView" />
</menu>
res/xml/searchable.xml
<?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" />
In Manifest file
<activity ... >
...
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable" />
</activity>
<activity android:name=".SearchResultsActivity" ... >
...
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
...
</activity>

Intent is not triggered in android searchview

Here is my code for searchview in android.Search option is visible on the toolbar but when a text and entered and searched it does not trigger SearchActivity.
xml/searchable.xml
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="#string/label"
android:hint="#string/search" >
</searchable>
menu/menu.xml
<?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/search"
android:title="#string/search_title"
android:icon="#drawable/ic_search"
app:showAsAction="collapseActionView|ifRoom"
app:actionViewClass="android.support.v7.widget.SearchView" />
</menu>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.welcomecure.searchview">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<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=".SearchResultsActivity" />
</activity>
<activity
android:name=".SearchActivity"
android:label="#string/app_name">
<!-- to identify this activity as "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>
</application>
</manifest>
MainActivity.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
// Inflate menu to add items to action bar if it is present.
inflater.inflate(R.menu.menu, menu);
// Associate searchable configuration with the SearchView
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
}
SearchActivity.java
public class SearchActivity extends AppCompatActivity {
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
handleIntent(getIntent());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
#Override
protected void onNewIntent(Intent 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
}
}
}

Your Activity is named SearchActivity, but you declared SearchResultsActivity in manifest:
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
From the docs:
To declare the searchable activity for an activity's search dialog,
add a element inside the respective activity's
element. The element must include the android:value
attribute that specifies the searchable activity's class name and the
android:name attribute with a value of
"android.app.default_searchable".

try to use the same activity name from the calling activity, you used SearchActivity to show the search result, try to use the same activity name
<activity android:name=".MainActivity">
<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>

You can also do this programmatically.
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) { // this is triggered when you press the key search from keyboard.
return true;
}
#Override
public boolean onQueryTextChange(String newText) { // this is triggered when you change your search text.
return true;
}
});

android want to add searchview in actionbar but app crash

i am working on action bar . i want to add searchview option on the action bar but app crash here.
this is crash
this is my code of option menu xml
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/search"
android:title="Search"
android:icon="#drawable/search"
android:showAsAction="collapseActionView|ifRoom"
android:actionViewClass="android.widget.SearchView"/>
this is the code of searchable.xml
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:hint="#string/enter"
android:includeInGlobalSearch="false"
android:label="#string/search"
android:searchSettingsDescription="#string/search_global_description" />
and this is my activity code
public class Thrd extends ActionBarActivity {
Menu m;
final Context context=this;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_thrd);
getSupportActionBar().setTitle("3rd page");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
ColorDrawable colorDrawable = new ColorDrawable(Color.parseColor("#20a780"));
getSupportActionBar().setBackgroundDrawable(colorDrawable);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate( R.menu.options_menu, menu );
// Add SearchWidget.
SearchManager searchManager = (SearchManager) getSystemService( Context.SEARCH_SERVICE );
SearchView searchView = (SearchView) menu.findItem( R.id.search ).getActionView();
searchView.setSearchableInfo( searchManager.getSearchableInfo( getComponentName() ) );
return super.onCreateOptionsMenu( menu );
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.search:
onSearchRequested();
return true;
case R.id.action_Exit:
openExit();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void openExit() {
}
}
please help me to solve my problem.thanks advance

This was how I implemented my search handling.
In the XML folder under layout, add a searchable.xml file and put this code like so:
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="#string/app_name"
android:hint="Search Trends" />
Then in your ANDROID manifest file, add
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="com.tobisoft.trendify.MainActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
//This is the meta to add for your activity
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
</activity>
Also you would need to make an activity for the search results like so:
<activity
android:name=".SearchResultsActivity"
android:label="#string/app_name"
android:theme="#style/MyMaterialTheme">
<!-- to identify this activity as "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>
now in the menu folder, with a file name main.xml (or anything you are using)
<item
android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:orderInCategory="100"
android:title="#string/action_search"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="always" />
You can get the icon yourself by a simple google search. You would also need to add the AppCompat Library to your project, something you can also do from a simple google search. In the SearchResultsActivity, add this:
public class SearchResultsActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_result);
handleIntent(getIntent());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
SearchManager searchManager =
(SearchManager)getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.action_search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
#Override
protected void onNewIntent(Intent 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 activity_result.xml layout file is this :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ff141414">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#FFFFFF"
android:textSize="#dimen/_25sdp"
android:textStyle="bold"
android:text="Search Result goes here!"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
In your MainActivity.java add this:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView)menu.findItem(R.id.action_search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
All this shld help your app on the right track. Hope it helps

Changing to import android.support.v7.widget.SearchView helped me and also change these lines
MenuItem searchItem = menu.findItem(R.id.action_search);
SearchView searchView= (SearchView) searchItem.getActionView();
searchView.setOnQueryTextListener(this);`

How to add search icon in action bar?

I am using navigation drawer,and i have action bar in all fragments,I am trying to add search icon in action bar but its not appearing,app is not crashing but even icon is not visible in my action bar,following is my code for that can any one help
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:showAsAction="never"
android:icon="#drawable/searchs"
android:title="#string/action_settings"/>
</menu>
MainActivity
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

i think it is because of:
android:showAsAction="never"
instead of that use:
android:showAsAction="ifRoom"

ShowAsAction must be always or ifRoom.
always makes sure it is always present.
ifRoom pushes the menuitem into overflow menu if space is not available.
if your intention is to attach search functionality to your activity, you should consider using SearchView widget instead of using and icon and handling click on it.

#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_contact, menu);
MainActivityAfterLogin.menu = menu;
MenuItem searchItem = menu.findItem(R.id.menu_search);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) MenuItemCompat
.getActionView(searchItem);
searchView.setSearchableInfo(searchManager
.getSearchableInfo(getComponentName()));
searchView.setOnQueryTextListener(new OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String text) {
return false;
}
#Override
public boolean onQueryTextChange(String text) {
return false;
}
});
return true;
}
<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="${relativePackage}.${activityClass}" >
<item
android:id="#+id/menu_search"
android:title="#string/action_search"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="always"/>
</menu>
add this in manifest
<activity
android:name="**mainactivity**"
android:label="#string/title_activity_invited_person_list" >
<meta-data
android:name="android.app.default_searchable"
android:value="**result activity**" />
</activity>
<activity
android:name="com.w3nuts.rsvp.main.SearchResultActivity"
android:label="#string/title_activity_search_result" >
<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>

Search on ActionBar

Level:Beginner
I am trying to implement a search bar on ActionBar. I want that when someone clicks the search icon, he should get a text field, where he simply fills in the text and can search by submitting through the keyboard search Button. Following several tutorials, I am quite confused.
When I do not add
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false);
I get an icon for search, but it does not expands into a text field. So I am not able to search anything from there.
when I add
`searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false); `
I get an error 'unfortunately, Application has stopped' and the logcat shows:-
Process: com.example.bhavya.myapplication, PID: 23261
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.SearchView.setIconifiedByDefault(boolean)' on a null object reference
at com.example.bhavya.myapplication.MainActivity.onCreateOptionsMenu(MainActivity.java:27)
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.action_search).getActionView();
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false);
return true;
}
I also tried to set 'intent-filter' and 'meta-data' in the following way after I was unsuccesful
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.bhavya.myapplication" >
<application
android:allowBackup="true"
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>
<meta-data android:name="android.app.default_searchable"
android:value=".SearchableActivity"/>
</activity>
<activity
android:name=".SearchableActivity"
android:label="#string/title_activity_searchable" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="#xml/searchable"/>
</activity>
</application>
but nothing changed, I also made a folder "xml" and set searchable configuration
<?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/app_name" >
</searchable>
This is my menu.
<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_settings" android:title="#string/action_settings"
android:orderInCategory="100" app:showAsAction="never" />
<item android:id="#+id/action_search"
android:title="Search"
android:icon="#android:drawable/ic_menu_search"
app:showAsAction="always"
android:actionViewClass="android.widget.SearchView" />
</menu>
This is my 2nd activity
public class SearchableActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_searchable);
handleIntent(getIntent());
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.action_search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;I get an icon for search, but it does not expands into a text field. So I am not able to search anything from there.
}
#Override
protected void onNewIntent(Intent 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
}
}
}
I tried to look up a lot, but only got confused more. Please Help.