Question

我的背景图像发生了变化，并且在它之上我正在使用圆角。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。 enter image description here

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;
      }

为了表明我有一个背景图像和顶部的圆角，由可绘制的利用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"
                />

Answer 1

您应该可以通过在背景上绘制圆角矩形之前使背景透明来实现此目的。

背景图像圆角

1 个答案: