CODEWITHSUNDEEP
androidtoolbarsearchview
user1209304
user1209304

Reputation: 428

How to hide\show SearchView from Toolbar?

I have ToolBar and I have defined Searchview as an item:

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    <item
        android:id="@+id/action_search"
        android:icon="@android:drawable/ic_menu_search"
        app:showAsAction="never"
        app:actionViewClass="android.support.v7.widget.SearchView"
        android:title="Search"/>
</menu>

Then I have BaseActivity class where I define Toolbar:

protected final void onCreate(Bundle savedInstanceState, int layoutId)
{
    super.onCreate(savedInstanceState);
    setContentView(layoutId);

    Toolbar myToolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(myToolbar);
    getSupportActionBar().setDisplayShowTitleEnabled(false);

    assert myToolbar != null;

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu, menu);

    return true;
}

I have search activity where I show toolbar and I would like to show searchview. The problem is that APP is crashing with null pointer exception that it can't find SearchView action_search

public class SearchActivity extends BaseActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search);

        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        SearchView searchview = (SearchView) findViewById(R.id.action_search);
        searchview.setVisibility(SearchView.VISIBLE);

    }
}

What is correct way to show\hide SearchView?

Upvotes: 1

Views: 2359

Answers (4)

Siddarth G
Siddarth G

Reputation: 779

(Kotlin)

Here is a simple way to show/hide searchview:

    private lateinit var menuItem: MenuItem
    private var mSearchView: SearchView? = null

    private fun updateSearchUI(visible: Boolean) {
    if (isChecked) {
        menuItem.isVisible = true
    }else{
        menuItem.isVisible = false
    }
    }

On first load of Activity if you want to check some preferences and show/hide:

override fun onCreateOptionsMenu(menu: Menu?): Boolean {
    menuInflater.inflate(R.menu.menu, menu)
    menuItem = menu!!.findItem(R.id.shortcut_search)
    mSearchView = menuItem.actionView as SearchView
    updateSearchUI(PreferenceManager.getVisibilityStatus(applicationContext))
    return true
}

if you want to toggle searchView show/hide:

switch_on_off.setOnCheckedChangeListener { buttonView, isChecked ->
    updateSearchUI(isChecked)
    }
}

Upvotes: 0

E Player
E Player

Reputation: 1856

Try below:

First: Change "app:showAsAction" attribute to "always"

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    <item
        android:id="@+id/action_search"
        android:icon="@android:drawable/ic_menu_search"
        app:showAsAction="always"
        app:actionViewClass="android.support.v7.widget.SearchView"
        android:title="Search"/>
</menu>

Second: You can not access SearchView directly in onCreate. So remove below code.

        SearchView searchview = (SearchView) findViewById(R.id.action_search);
        searchview.setVisibility(SearchView.VISIBLE);

Third: You can access the SearchView when it is add to toolbar, i.e. when onCreateOptionsMenu is called. 

        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            MenuInflater inflater = getMenuInflater();
            inflater.inflate(R.menu.menu, menu);

            MenuItem mSearch = menu.findItem(R.id.action_search);
            mSearchView = (SearchView) mSearch.getActionView();//Store the reference in global variable of Base activity.
            //Do you customization here, like
            mSearchView.setOnQueryTextListener(this);
            return true;
    }

Fourth: Now you have the reference to SearchView. So you can show/hide search view, like below:

       if(mSearchView.isShown()) {
            mSearchView.setVisibility(View.GONE);
        } else {
            mSearchView.setVisibility(View.VISIBLE);
        }

Upvotes: 0

user1506104
user1506104

Reputation: 7106

Please take note that onCreate is the first activity life cycle method to be called. onCreateOptionsMenu is triggered during (depending on your Android version) or after onCreate. With this in mind, when you findViewById(R.id.action_search) inside your onCreate method, it will yield a NULL object, thus the error.

Please check here for other observations by other developers.

What is correct way to show\hide SearchView?

You don't have to manually show/hide it. In your menu resource, you already have the option android:showAsAction="never" included. It means:

Never place this item in the app bar. Instead, list the item in the app bar's overflow menu.

By default, your search view item is already hidden. To show it, you need to click the overflow menu (three dots) on the toolbar.

Upvotes: 0

mustafiz012
mustafiz012

Reputation: 69

In your SearchActivity, use the below code:

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        MenuItem menuItem = menu.findItem(R.id.action_search);
        menuItem.setVisible(false);
        return true;
    }

Upvotes: 1

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