Android Development Change the icon of the return button

Many Android apps have a Back button in the top left corner

By default, ADT will default to a return icon

And as a lot of development needs are required to customize a new icon

Found 2 ways to change on Android's website

1.

Setting in the Java Code environment

ActionBar = Getactionbar ();        Actionbar.setdisplayhomeasupenabled (true);        Actionbar.sethomeasupindicator (R.drawable.back);

If you have an error message, call requires API level: Android.app.actionbar#sethomeasupindicator

Indicates that the current minimum API level is less than 18 then refer to the second method.

2.

Add a style to Styles.xml

<style name= "Style_titlebar_normal" parent= "Theme.AppCompat.Light" >       <item name= "Android: Homeasupindicator "> @drawable/back</item> <!--back icon-->    </style>  

The style is then set in the Androidmanifest.xml in the theme of its activity

<activity            android:name= "com.logic.activity.Activity1"            android:theme= "@style/style_titlebar_normal"            >        </activity>

This approach does not require the API level to be slightly more complex



Android Development Change the icon of the return button