我需要以编程方式更改形状的背景颜色,但我不知道如何。这里是我迄今所做的:以编程方式设置形状的背景颜色
<LinearLayout
android:id="@+id/linearlayout_mediagalleryicon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="@drawable/circle_visual_feedback_selector"
android:gravity="center"
android:padding="10dp"
android:clickable="true">
<ImageView
android:id="@+id/imageview_mediagalleryicon"
android:layout_width="35dp"
android:layout_height="35dp" />
</LinearLayout>
circle_visual_feedback_selector.xml:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/circle_visual_feedback" />
</selector>
circle_visual_feedback.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval">
<solid android:color="#40808080"/>
<padding android:bottom="10dp" android:right="10dp" android:top="10dp" android:left="10dp"></padding>
</shape>
我曾经尝试这样做,它设置的所有的LinearLayout,不只是圆 – student