在Android的一个ImageView的圆角 [英] Rounded corners for an Imageview in android

问题描述

我有一个的LinearLayout里面一个TextView和ImageView的。 TextView的是在顶部和imageview的底部。我用下面的线路有圆角的LinearLayout。但ImageView的棱角并没有四舍五入。我只看到的LinearLayout的顶部边角倒圆。 ImageView的中的我怎么能有圆形底角？（我看如果我删除的ImageView所有的边角圆润）

I have a textview and imageview inside a linearlayout. Textview is at top and imageview at bottom. I used below lines to have rounded corners for linearlayout. But imageview corners are not rounding. I see only top corners of linearlayout are rounding. How can i have rounded bottom corners of imageview? ( I see all the corners are rounded if i remove imageview)

rounded_corners.xml

rounded_corners.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >

<solid android:color="#ffffff" />


<corners
    android:bottomLeftRadius="8dp"
    android:bottomRightRadius="8dp"
    android:topLeftRadius="8dp"
    android:topRightRadius="8dp" />

</shape>

main.xml中

main.xml

  <LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="50dp"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginTop="50dp"
    android:background="@xml/rounded_corners"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="xxxxxxxx" />

    <ImageView     
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:scaleType="centerCrop"
        android:src="@drawable/my_image_view" />
</LinearLayout>

截屏：

screen shot :

推荐答案

您可以使图像的左下角和右下角的圆形，像这样的：

you can make the image's left bottom and right bottom corner rounded,like this:

code：

public static Bitmap getRoundCornerBitmap(Bitmap bitmap, int radius) {
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    Bitmap output = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    final RectF rectF = new RectF(0, 0, w, h);

    canvas.drawRoundRect(rectF, radius, radius, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, null, rectF, paint);

    /**
     * here to define your corners, this is for left bottom and right bottom corners
     */
    final Rect clipRect = new Rect(0, 0, w, h - radius);
    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
    canvas.drawRect(clipRect, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
    canvas.drawBitmap(bitmap, null, rectF, paint);

    bitmap.recycle();

    return output;
}

这个方法可以给你一个图像的左下角和右下角的圆形。

this method can give you a image with left bottom and right bottom corner rounded.

这篇关于在Android的一个ImageView的圆角的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！