如何在屏幕上为ProgressBar
制作圆角渐变?
我现在拥有的:
pb_shape.xml
:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<corners android:radius="12dip" />
<stroke
android:width="1dip"
android:color="@color/primary_white" />
<gradient
android:angle="270"
android:centerColor="@color/primary_black"
android:centerY="0.5"
android:endColor="@color/primary_black"
android:startColor="@color/primary_black"/>
<padding
android:bottom="4dp"
android:left="4dp"
android:right="4dp"
android:top="4dp" />
</shape>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<corners android:radius="12dip" />
<gradient
android:angle="0"
android:endColor="@color/primary_teal"
android:startColor="@color/primary_blue_dark" />
</shape>
</clip>
</item>
<ProgressBar
android:id="@+id/pb_timer"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:progressDrawable="@drawable/pb_shape" />
我已经尝试将android:gradientRadius="12dip"
添加到pb_shape,但它不起作用。
答案 0 :(得分:6)
似乎我找到了一个解决方法,感谢您为@krislarson和this post提供正确的搜索方向
结果代码:
pb_shape.xml
:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape android:shape="rectangle">
<corners android:radius="12dip" />
<stroke
android:width="1dip"
android:color="@color/primary_white" />
<gradient
android:angle="270"
android:centerColor="@color/primary_black"
android:centerY="0.5"
android:endColor="@color/primary_black"
android:gradientRadius="12dip"
android:startColor="@color/primary_black" />
</shape>
</item>
<item android:id="@android:id/progress">
<scale
android:drawable="@drawable/pb_custom_progress"
android:scaleWidth="98%" />
</item>
</layer-list>
pb_custom_progress.xml
这里有魔力:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<!--make it rounded-->
<corners
android:radius="20dp"
android:topLeftRadius="20dp"
android:topRightRadius="20dp" />
<gradient
android:angle="0"
android:endColor="@color/primary_teal"
android:startColor="@color/primary_blue_dark" />
<!--create invisible stroke for padding-->
<stroke
android:width="6dip"
android:color="@android:color/transparent"/>
</shape>
结果: