[英]Rounded corners not working when button has background image
我的活動中有一個按鈕,它也有一個背景圖像。我已經添加了選擇器屬性,它適用於set_pressed和set_focused.But圓角不會出現在按鈕的默認狀態,因為我已經插入了背景圖像also.pls幫我...
activity_sam.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<shape >
<solid android:color="#f27d0f"/>
<corners android:radius="7dp"/>
</shape>
</item>
<item android:state_focused="true">
<shape >
<solid android:color="#f27d0f"/>
<corners android:radius="7dp"/>
</shape>
</item>
<item android:state_focused="false"
android:state_enabled="true"
android:drawable="@drawable/sam_logo" >
<shape >
<corners android:radius="7dp"/>
</shape>
</item>
</selector>
添加布局相同大小的按鈕
提供背景圖像並設置圓角xml作為按鈕的背景..如果它工作接受答案。
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/ic_launcher"
android:orientation="vertical" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/top_right_left_coner"
android:text="@string/hello_world" />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="@android:color/transparent" />
<stroke
android:width="1dp"
android:color="@android:color/black" />
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<corners
android:bottomLeftRadius="10dip"
android:bottomRightRadius="10dip"
android:topLeftRadius="10dip"
android:topRightRadius="10dip" />
</shape>
在最后一項下面添加此項。
<item>
<shape>
<corners android:radius="7dp"/>
</shape>
</item>
它將作為按鈕的默認樣式。
添加另一個項目以顯示默認狀態,如下所示:
<shape>
<corners android:radius="7dp"/>
</shape>
如果要以編程方式顯示圓角,請執行以下操作:
public Drawable getRoundedBitmap(Bitmap bitmap, float Rnd_px) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff151515;
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 = Rnd_px;
paint.setAlpha(50);
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);
Drawable image = new BitmapDrawable(output);
return image;
}
上面的代碼將裁剪圖像的邊緣。 如果要在圖像視圖上顯示圓角圖層。 請執行以下操作。
<?xml version="1.0" encoding="UTF-8"?>
<solid android:color="#FFFFFF" />
<stroke
android:width="3dp"
android:color="#0000CC" />
<corners
android:bottomLeftRadius="5dp"
android:bottomRightRadius="5dp"
android:topLeftRadius="5dp"
android:topRightRadius="5dp" />
<padding
android:bottom="6dp"
android:left="6dp"
android:right="6dp"
android:top="6dp" />
我寧願在代碼中嘗試這樣的東西(尚未檢查):
public class MyDrawable extends PaintDrawable {
BitmapShader mShader;
Rect mRect = new Rect();
public MyDrawable(BitmapDrawable bitmapDrawable) {
super();
final BitmapShader mShader = new BitmapShader(bitmapDrawable.getBitmap(), bitmapDrawable.getTileModeX() == null ? Shader.TileMode.CLAMP : bitmapDrawable.getTileModeX(), bitmapDrawable.getTileModeY() == null ? Shader.TileMode.CLAMP : bitmapDrawable.getTileModeY());
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setFilterBitmap(true);
mPaint.setDither(true);
mPaint.setStyle(Paint.Style.FILL);
mPaint.setShader(mShader);
}
@Override
public void draw(Canvas canvas) {
int saveCount = canvas.getSaveCount();
canvas.save();
getPadding(mRect);
canvas.translate(mRect.left, mRect.top);
getShape().draw(canvas, mPaint);
canvas.translate(-mRect.left, -mRect.top);
canvas.restoreToCount(saveCount);
}
}
多虧了這個你可以使用MyDrawable.setCornerRadii(float []半徑),並且感謝這個在rect中繪制的圖像有4個不同的半徑(左上角,右上角,左下角,下邊角色)
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