Java 以编程方式更改可绘制图形的角半径
我在xml中定义了此形状:Java 以编程方式更改可绘制图形的角半径,java,android,xml,drawable,shape,Java,Android,Xml,Drawable,Shape,我在xml中定义了此形状: <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <gradient android:startColor="#FFFF0000" android:endColor="#80FF0
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#FFFF0000"
android:endColor="#80FF00FF"
android:angle="45"/>
<padding android:left="7dp"
android:top="7dp"
android:right="7dp"
android:bottom="7dp" />
<corners
android:bottomLeftRadius="5dp" ##this need change
android:bottomRightRadius="5dp" ##this need change
android:topLeftRadius="5dp" ##this need change
android:topRightRadius="5dp" /> ##this need change
</shape>
##这需要改变
我正在创建以下对象:
Drawable shape=getResource().getDrawable(R.Drawable.myshape)代码>
我需要修改它的半径(或者用另一个角半径创建一个)
如何更改半径?如何以编程方式创建形状?我解决了问题。解决方案如下:
private Drawable getShape(){
GradientDrawable gradientDrawable = new GradientDrawable(GradientDrawable.Orientation.TL_BR, new int[] { startColor,
centerColor, endColor});
gradientDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);
gradientDrawable.setCornerRadii(getRandomFloatArray());
gradientDrawable.setGradientCenter(0.0f, 0.45f);
return gradientDrawable;
}
private float [] getRandomFloatArray(){
Random rnd = new Random();
float[] floats = new float[8];
for (int i =0; i < floats.length; i++){
floats[i] = rnd.nextInt(45);
}
return floats;
}
private可绘制getShape(){
GradientDrawable GradientDrawable=新的GradientDrawable(GradientDrawable.Orientation.TL_BR,新int[]{startColor,
centerColor,endColor});
gradientDrawable.setGradientType(gradientDrawable.LINEAR_GRADIENT);
setCornerRadii(getRandomFloatArray());
gradientDrawable.setGradientCenter(0.0f,0.45f);
返回梯度可绘制;
}
私有浮点[]getRandomFloatArray(){
随机rnd=新随机();
浮动[]浮动=新浮动[8];
for(int i=0;i
查看ChrisJD给出的答案,并访问以编程方式获取有关设置角的更多信息。如果您解决了问题,请发布答案和解决方案并接受。