更改动作条homeAsUpIndicator Programamtically [英] Change the actionbar homeAsUpIndicator Programamtically

问题描述

我用下面的技巧以编程方式更改homeAsupIndicator。

I used the following hack to change the homeAsupIndicator programmatically.

int upId = Resources.getSystem().getIdentifier("up", "id", "android");
if (upId > 0) {
    ImageView up = (ImageView) findViewById(upId);
up.setImageResource(R.drawable.ic_action_bar_menu);
up.setPadding(0, 0, 20, 0);
}

不过，这是行不通的大多数新款手机（HTC一，银河S3等）。有，可均匀地改变跨设备的方法。我需要它只能在主屏幕改变。其他屏幕将有默认的。所以不能使用styles.xml

But this is not working on most new phones (HTC One, Galaxy S3, etc). Is there a way that can be changed uniformly across devices. I need it to be changed only on home screen. Other screens would have the default one. So cannot use the styles.xml

推荐答案

这是我做过什么获得了这幅行为。我继承了基本主题，并创建了一个新的主题，用它作为主题，为特定的活动。

This is what i did to acheive the behavior. I inherited the base theme and created a new theme to use it as a theme for the specific activity.

<style name="CustomActivityTheme" parent="AppTheme">
    <item name="android:homeAsUpIndicator">@drawable/custom_home_as_up_icon</item>
</style>

而在Android清单我所做的活动主题，上面。

and in the android manifest i made the activity theme as the above.

<activity
        android:name="com.example.CustomActivity"
        android:theme="@style/CustomActivityTheme" >
</activity>

的伟大工程。将再次更新，当我检查我的所有设备。感谢@faylon您指出了正确的方向。

works great. Will update again when i check on all devices I have. Thanks @faylon for pointing in the right direction

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