Android Action Bar navigation up button not working on devices

You should use a meta data tags for Up button to work on older APIs:

        android:parentActivityName=".MainActivity">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="MainActivity" />

EDIT:

You already have the parentActivityName, so add only the meta tag to your AndroidManifest.xml file's tags. Like so:

    <activity
        android:name="in.datumdata.hosurdata.MovieActivity"
        android:label="Movie Details"
        android:parentActivityName="in.datumdata.hosurdata.MainActvity"
        android:screenOrientation="portrait">
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="in.datumdata.hosurdata.MainActvity" />
    </activity>

Where you do this:

getActionBar().setDisplayHomeAsUpEnabled(true);

Try doing this:

getSupportActionBar().setDisplayHomeAsUpEnabled(true);

If your activity gets called from multiple activities and specifying parent activity doesn't fit your use case, then you can fix it by adding this:

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);  (in onCreate)


    @Override
    public boolean onNavigateUp() {
        finish();
        return true;
    }

    @Override
    public boolean onSupportNavigateUp() {
        finish();
        return true;
    }