更改向上箭头的颜色后标记为私人警告 [英] Marked as private warning after changing colour of up arrow

问题描述

为操作栏中的后退箭头定义自定义颜色后，将返回警告.可以做些什么来摆脱这个警告?

 final Drawable upArrow = ContextCompat.getDrawable(this, R.drawable.abc_ic_ab_back_mtrl_am_alpha);upArrow.setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_ATOP);actionBar.setHomeAsUpIndicator(upArrow);

<块引用>

资源@drawable/abc_ic_ab_back_mtrl_am_alpha 在 com.android.support:appcompat-v7 中被标记为私有

解决方案

参见 选择资源公开的原因.

简而言之，drawable/abc_ic_ab_back_mtrl_am_alpha 是 appcompat-v7 的私有资源，旨在仅由该库使用.你不应该使用它.

如果你真的想使用它，把它复制到你的项目中

After defining a custom colour for the back arrow in the action bar, a warning is then returned. What can be done to get rid of this warning?

        final Drawable upArrow = ContextCompat.getDrawable(this, R.drawable.abc_ic_ab_back_mtrl_am_alpha);
        upArrow.setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_ATOP);
        actionBar.setHomeAsUpIndicator(upArrow);

The resource @drawable/abc_ic_ab_back_mtrl_am_alpha is marked as private in com.android.support:appcompat-v7

解决方案

See Choose resources to make public for the reason.

In short, drawable/abc_ic_ab_back_mtrl_am_alpha is a private resource of appcompat-v7 and is intended to be used only by that library. You should not use it.

If you really want to use it, copy it to your project

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