CODEWITHSUNDEEP
androidandroid-support-libraryandroid-toolbarandroid-collapsingtoolbarlayout
MhdAdeebMasoud
MhdAdeebMasoud

Reputation: 1

How to set an OnClickListener to CollapsingToolbarLayout Title

I have the default AppBar layout inside a coordinator layout 

<android.support.design.widget.AppBarLayout
    android:id="@+id/app_bar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:fitsSystemWindows="true"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/toolbar_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        app:contentScrim="?attr/colorPrimary"
        app:expandedTitleMarginStart="@dimen/activity_horizontal_margin"
        app:expandedTitleMarginEnd="@dimen/activity_horizontal_margin"
        app:expandedTitleGravity="start|bottom"
        app:collapsedTitleTextAppearance="@style/TextAppearance.Widget.AppCompat.Toolbar.Title"
        app:expandedTitleTextAppearance="@style/TextAppearance.AppCompat.Widget.ActionBar.Title.Inverse"
        app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#FAFAFA"
            android:fitsSystemWindows="true"
            android:orientation="vertical"
            app:layout_collapseMode="parallax">

            <com.petronas.laniakea.view.FixedRatioImageView
                android:id="@+id/image"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:scaleType="centerCrop"
                android:src="@drawable/logo_blue" />

        </LinearLayout>

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:layout_collapseMode="pin"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

How do I set an OnClickListener for the title TextView? I was able to get the Toolbar private Title TextView, make it public and set an OnClickListener to that view:

   toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        Field titleField = null;
        try {
            titleField =Toolbar.class.getDeclaredField("mTitleTextView");
            titleField.setAccessible(true);
            TextView barTitleView = (TextView) titleField.get(toolbar);
            barTitleView.setOnClickListener(v -> {});
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }

The code above works fine but I still don't get a click event when I click the title. Any Ideas? Here is my view hierarchy as it appears on Stetho: View Hierarchy

Upvotes: 0

Views: 965

Answers (2)

rpurohit
rpurohit

Reputation: 364

As far as I know, there is no way to set an OnClickListener on the TextView in any sort of an ActionBar or toolbar. The way you are using uses reflection APIs, which, when packaged in a release app, will promptly crash.

Upvotes: 2

Satan Pandeya
Satan Pandeya

Reputation: 3815

You can try by wrapping the TextView by Toolbar. So, your layout structure be like:

<Toolbar ...>
    <TextView android:id="@+id/toolbarTextId" ..../>
</Toolbar>

Now, use OnClickListener for tap on text.

yourTextView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // some action
    }
});

Upvotes: 0

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