我有一个改变的背景图像,在它上面我使用圆角。有没有办法隐藏图像的角落。下面是我的小部件的屏幕截图,其中显示了角落。
编辑代码:
Bitmap bm1 = BitmapFactory.decodeResource(context.getResources(), Utilities.getDrawableId(ACCUWX.Icons.AL_WIDGETBG_ICON_MAP[Integer.parseInt(wdm.iconCode)]));
Bitmap roundedBm = Utilities.getRoundedCornerBitmap(bm1);
toRet.setImageViewBitmap(R.id.widget_bg, roundedBm);
方法调用:
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;
}
为了显示我有一个背景图像和顶部的圆角,由一个可绘制的 xml 形状制成:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/widget_bg_rl"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipChildren="true">
<ImageView
android:id="@+id/widget_bg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/al_widgetbg_06_07_08"
android:scaleType="center" />
<LinearLayout
android:id="@+id/current_layout"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:focusable="true"
android:weightSum="8">
<RelativeLayout
android:id="@+id/city_time_rl"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2.5"
android:background="@drawable/rounded_corners_top"
android:clipChildren="true">
<TextView
android:id="@+id/city"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="MECHANICSBURG"
android:textSize="16dp"
android:textColor="@color/dk_blue"
/>