Android VectorDrawable 作为复合 Drawable

Android VectorDrawable as Compound Drawables

根据 this android developer blog post 所述,我们现在可以使用 VectorDrawables 在 Android API 7+ 上使用 AppCompat 23.2.0 和更高版本。

一切对我来说似乎都很好,除了将可绘制对象用作 TextView 的复合物时。

通常,人们会做这样的事情:

            customTab.setCompoundDrawablesWithIntrinsicBounds(
                0,
                R.drawable.my_vector,
                0,
                0
            );

很遗憾,目前这不起作用,我找不到解决此问题的方法。

根据 post 所述,唯一可用的工作方法是 xml,使用 app:srcCompat="@drawable/..." 和 Java setImageResource(...)

如何通过 setCompoundDrawable() 方法使用新的矢量绘图支持?

提前致谢。

编辑:

根据要求,这是 VectorDrawableCompat class:

的结果

xml 是:

<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="98"
    android:viewportHeight="102">

<path
    android:fillColor="#4D4D4D"
    android:strokeWidth="2"
    android:strokeColor="#4D4D4D"
    android:pathData="M63.3336386,72.2631001 C56.7778507,76.9021242
48.7563953,79.6307404
40.09319,79.6307404 C17.9503315,79.6307404 0,61.804793 0,39.8153702
C0,17.8259473 17.9503315,0 40.09319,0 C62.2360484,0 80.1863799,17.8259473
80.1863799,39.8153702 C80.1863799,50.8100816 75.6987973,60.7639242
68.4433567,67.9690887 L96.7320074,96.0617174 C98.0293966,97.3501165
97.9978616,99.4159703 96.6953405,100.709466 C95.3837385,102.011979
93.2974318,102.019264 92.0151615,100.745879 L63.3336386,72.2631001
L63.3336386,72.2631001 L63.3336386,72.2631001 Z M40.09319,74.9465792
C59.6310061,74.9465792 75.4695341,59.217802 75.4695341,39.8153702
C75.4695341,20.4129383 59.6310061,4.6841612 40.09319,4.6841612
C20.5553738,4.6841612 4.71684588,20.4129383 4.71684588,39.8153702
C4.71684588,59.217802 20.5553738,74.9465792 40.09319,74.9465792
L40.09319,74.9465792 L40.09319,74.9465792 Z" />
</vector>

根据@pskink 给出的宝贵建议,我能够在我的视图中正确加载一个可绘制对象。

我的问题是我用作 xml 的选择器在我的 TabLayout 中提供 "current active tab" 反馈。

我已经通过转换解决了我的问题:

Drawable drawable;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            drawable = ContextCompat.getDrawable(mContext, tabIcons[i]);
        } else {
            drawable = getResources().getDrawable(tabIcons[i]);
        }

        StateListDrawable stateListDrawable =  (StateListDrawable) drawable;
        customTab.setCompoundDrawablesWithIntrinsicBounds(
                null,
                stateListDrawable,
                null,
                null
        );

support library 23.2 开始,您可以使用下一个解决方案:

Drawable drawable=AppCompatDrawableManager.get().getDrawable(mContext, R.drawable.drawable);
view.setCompoundDrawablesWithIntrinsicBounds(null, drawable, null, null);

也可以通过数据绑定解决:

创建适配器方法

public class Bindings {
@BindingAdapter({"bind:drawableStartId"})
    public static void setDrawableStart(TextView textView, @DrawableRes int id) {
        Drawable drawable = AppCompatDrawableManager.get().getDrawable(textView.getContext(), id);
        Drawable drawables[] = textView.getCompoundDrawablesRelative();
        textView.setCompoundDrawablesRelativeWithIntrinsicBounds(drawable, drawables[1], drawables[2], drawables[3]);
    }
}

并在 xml 文件中使用 app:drawableStartId

<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>
        <import type="your.path.to.R" />
    </data>
    <TextView
    app:drawableStartId="@{isSelected ? R.drawable.one :R.drawable.another}"
    />
<layout/>