android - 更改 GradientDrawable 的填充

Question

我有这个图层列表:

<layer-list
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/outer_satop_btn">
        <shape xmlns:android="http://schemas.android.com/apk/res/android"
            android:shape="rectangle" >
            <corners android:radius="5dp" />
            <solid android:color="@android:color/transparent" />
        </shape>
    </item>
    <item android:id="@+id/bottom_satop_btn">
        <shape xmlns:android="http://schemas.android.com/apk/res/android"
            android:shape="rectangle" >
            <corners android:radius="5dp" />
            <solid android:color="@color/satopButtonColor2" />
            <padding
                android:bottom="5dp" />
        </shape>
    </item>
    <item android:id="@+id/top_satop_btn">
        <shape xmlns:android="http://schemas.android.com/apk/res/android"
            android:shape="rectangle" >
            <solid android:color="@color/satopButtonColor" />
            <corners android:radius="5dp" />
        </shape>
    </item>
</layer-list>

我想以编程方式更改 outer_satop_btn 的填充底部，但我没有找到这样做的任何东西:

LayerDrawable bgDrawable = (LayerDrawable)v.getBackground();
final GradientDrawable shape1 = (GradientDrawable)   bgDrawable.findDrawableByLayerId(R.id.outer_satop_btn);
Rect padding = new Rect();
shape1.getPadding(padding);

我该怎么办？谢谢

Answer 1

您可以将其包装在 InsetDrawable 中: InsetDrawable(shape1, 0, 5, 0, 5)