Android actionbar back button custom and resize

Issue

I change in style.xml

<item name="android:homeAsUpIndicator">@drawable/back</item>

It change back.png but size is too big.

How I can resize this icon on actionbar?

Solution

Use Website to Convert Images in different sizes eg. hdpi,mdpi,xhdpi etc.

And put you converted images inside mipmap folder

Reference Code :

  Toolbar toolbarTop = (Toolbar) findViewById(R.id.toolbar_top);
    TextView mTitle = (TextView) toolbarTop.findViewById(R.id.toolbar_title);
    mTitle.setText("Open Docket");
    setSupportActionBar(toolbarTop);

    ActionBar ab = getSupportActionBar();
    ab.setDisplayHomeAsUpEnabled(true);
    ab.setDisplayShowTitleEnabled(false);
    ab.setHomeAsUpIndicator(R.mipmap.ic_back_appbar);

Answered By - Abhishek Kumar