背景圆角以及图片圆角处理

来源：互联网发布：licecap mac版编辑：程序博客网时间：2024/06/13 08:25

1.配置文件实现:

<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/icon_home_button_img"/> <item android:drawable="@drawable/icon_home_shape_overlay"/> </layer-list> icon_home_shape_overlay如下<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#60000000"/> <stroke android:width="3dp" color="#ff000000"/> <corners android:radius="10dp" /> </shape

或者直接使用一种效果:

<?xml version="1.0" encoding="UTF-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#99FFFFFF"/> <corners android:radius="30px"/> <padding android:left="0dp" android:top="0dp" android:right="0dp" android:bottom="0dp" /> </shape>

然后:

android:background="@drawable/my_shape_file"

2.图片本身加上圆角

Bitmap myCoolBitmap = ... ; // <-- Your bitmap you want rounded int w = myCoolBitmap.getWidth(), h = myCoolBitmap.getHeight(); Bitmap rounder = Bitmap.createBitmap(w,h,Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(rounder);   Paint xferPaint = new Paint(Paint.ANTI_ALIAS_FLAG); xferPaint.setColor(Color.RED); canvas.drawRoundRect(new RectF(0,0,w,h), 20.0f, 20.0f, xferPaint); xferPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN)); canvas.drawBitmap(myCoolBitmap, 0,0, null); canvas.drawBitmap(rounder, 0, 0, xferPaint);

或者：

public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) {    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),        bitmap.getHeight(), Config.ARGB_8888);    Canvas canvas = new Canvas(output);    final int color = 0xff424242;    final Paint paint = new Paint();    final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());    final RectF rectF = new RectF(rect);    final float roundPx = 12;    paint.setAntiAlias(true);    canvas.drawARGB(0, 0, 0, 0);    paint.setColor(color);    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));    canvas.drawBitmap(bitmap, rect, rect, paint);    return output;}

原文链接：http://blog.sina.com.cn/s/blog_48843e730100m6o4.html

更多资料：http://blog.csdn.net/fyqjnu/article/details/7078845

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