我正在将 background
图像设置为 LinearLayout
,如下所示:
1.back_xml:
<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/back" >
</item>
<item>
<shape>
<solid/>
<stroke android:width="1dip" android:color="#225786" />
<corners android:radius="10dip"/>
<padding android:left="0dip" android:top="0dip" android:right="0dip" android:bottom="0dip" />
</shape>
</item>
<强>2。 tile.xml
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:src="@drawable/pie_chart_background"
android:tileMode="repeat">
</bitmap>
现在我将 back.xml 设置为 background
到 LinearLayout
它工作正常。
我需要一个带有圆角的图像
和一个边框。但我只有圆角边框和不是图像 我的代码有什么问题是我遗漏了什么吗?
这是我的图片的样子:
最佳答案
在你的问题后面花了几个小时,我终于实现了,希望现在它能给你你想要的结果,请通过下面的代码让我知道它是否有效?
将适当的参数传递给下面的函数以获得带有您想要的颜色边框的圆角。
public static Bitmap getRoundedCornerImage(Bitmap bitmap, int cornerDips, int borderDips, Context context) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(),
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int borderSizePx = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, (float) borderDips,
context.getResources().getDisplayMetrics());
final int cornerSizePx = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, (float) cornerDips,
context.getResources().getDisplayMetrics());
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
paint.setColor(0xFFFFFFFF);
paint.setStyle(Paint.Style.FILL);
canvas.drawARGB(0, 0, 0, 0);
canvas.drawRoundRect(rectF, cornerSizePx, cornerSizePx, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
paint.setColor((Color.RED)); // you can change color of your border here, to other color
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth((float) borderSizePx);
canvas.drawRoundRect(rectF, cornerSizePx, cornerSizePx, paint);
return output;
}
main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
tools:context=".MainActivity" >
<ImageView
android:id="@+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
/>
</RelativeLayout>
OnCreate
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageView rl=(ImageView)findViewById(R.id.image);
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.testing); // your desire drawable image.
rl.setImageBitmap(getRoundedCornerImage(bitmap, 10, 10, this));
}
原图
输出
以下链接帮助我实现我的目标:
Border over a bitmap with rounded corners in Android
Creating ImageView with round corners
关于android - 图像未裁剪,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14476261/