使圆角的ImageView？

卡角圆角 我想使界面如上所示。图像不固定，这意味着我可以将图像传输到其他图像。我想在xml文件中使用pakage。喜欢的东西，使圆角的ImageView？

<com.example.widgets.RoundedImageView 
    android: layout_width = "39dp" 
    android: layout_height = "39dp" 
    android: src = "@ drawable/your_drawable" />

来源

2016-06-23 Lan Lan

采用Android'CardView' – Sanoop

是与@Sanoop同意，您可以使用卡片视图中创建此布局 –

<?xml version="1.0" encoding="utf-8"?> 
<shape xmlns:android="http://schemas.android.com/apk/res/android" 
     android:shape="rectangle"> 
    <!-- <solid android:color="add your color here"/>--> 
    <solid android:color="#00000"/> 
    <stroke 
     android:color="add your color here" 
     android:width="1dp"/> 
    <corners 
     android:radius="5dp"/> 


</shape>

你的绘制代码应该这样的..

> <com.example.widgets.RoundedImageView 
>    android: layout_width = "39dp" 
>    android: layout_height = "39dp" 
>    android:background="here is your background source" 
>    android: src = "@ drawable/your_drawable" 
>  />

来源

2016-06-23 04:14:14

不是圆角图片 –

你可以使用这个组件。 https://github.com/pungrue26/SelectableRoundedImageView

 <com.utility.SelectableRoundedImageView 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      app:sriv_left_top_corner_radius="55dp" 
      app:sriv_right_top_corner_radius="0dp" 
      android:scaleType="fitXY" 
      />

来源

2016-06-23 06:03:13

-1

如果你不希望使用任何第三方库，那么你可以自定义您的ImageView。

import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Matrix; 
import android.graphics.Paint; 
import android.graphics.Path; 
import android.graphics.RectF; 
import android.graphics.drawable.BitmapDrawable; 
import android.graphics.drawable.Drawable; 
import android.util.AttributeSet; 

public class RoundedImageView extends android.support.v7.widget.AppCompatImageView { 
private Paint mPaint; 
private Path mPath; 
private Bitmap mBitmap; 
private Matrix mMatrix; 
private int mRadius = convertDpToPixel(10); 
private int mWidth; 
private int mHeight; 
private Drawable mDrawable; 

public RoundedImageView(Context context) { 
    super(context); 
    init(); 
} 

public RoundedImageView(Context context, AttributeSet attrs) { 
    super(context, attrs); 
    init(); 
} 

public RoundedImageView(Context context, AttributeSet attrs, int defStyleAttr) { 
    super(context, attrs, defStyleAttr); 
    init(); 
} 

private void init() { 
    mPaint = new Paint(); 
    mPaint.setColor(Color.WHITE); 

    mPath = new Path(); 
} 

public int convertDpToPixel(int dp) { 
    DisplayMetrics displayMetrics = Resources.getSystem().getDisplayMetrics(); 
    return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, displayMetrics); 
} 

@Override 
public void setImageDrawable(Drawable drawable) { 
    mDrawable = drawable; 
    if (drawable == null) { 
     return; 
    } 
    mBitmap = drawableToBitmap(drawable); 
    int bDIWidth = mBitmap.getWidth(); 
    int bDIHeight = mBitmap.getHeight(); 
    //Fit to screen. 
    float scale; 
    if ((mHeight/(float) bDIHeight) >= (mWidth/(float) bDIWidth)) { 
     scale = mHeight/(float) bDIHeight; 
    } else { 
     scale = mWidth/(float) bDIWidth; 
    } 
    float borderLeft = (mWidth - (bDIWidth * scale))/2; 
    float borderTop = (mHeight - (bDIHeight * scale))/2; 
    mMatrix = getImageMatrix(); 
    RectF drawableRect = new RectF(0, 0, bDIWidth, bDIHeight); 
    RectF viewRect = new RectF(borderLeft, borderTop, (bDIWidth * scale) + borderLeft, (bDIHeight * scale) + borderTop); 
    mMatrix.setRectToRect(drawableRect, viewRect, Matrix.ScaleToFit.CENTER); 
    invalidate(); 
} 

private Bitmap drawableToBitmap(Drawable drawable) { 
    Bitmap bitmap; 
    if (drawable instanceof BitmapDrawable) { 
     BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable; 
     if (bitmapDrawable.getBitmap() != null) { 
      return bitmapDrawable.getBitmap(); 
     } 
    } 
    if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) { 
     bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888); // Single color bitmap will be created of 1x1 pixel 
    } else { 
     bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 
    } 
    Canvas canvas = new Canvas(bitmap); 
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); 
    drawable.draw(canvas); 
    return bitmap; 
} 

@Override 
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 
    super.onMeasure(widthMeasureSpec, heightMeasureSpec); 
    mWidth = MeasureSpec.getSize(widthMeasureSpec); 
    mHeight = MeasureSpec.getSize(heightMeasureSpec); 
    if ((mDrawable != null) && (mHeight > 0) && (mWidth > 0)) { 
     setImageDrawable(mDrawable); 
    } 
} 

@Override 
protected void onDraw(Canvas canvas) { 
    super.onDraw(canvas); 
    if (mBitmap == null) { 
     return; 
    } 
    canvas.drawColor(Color.TRANSPARENT); 
    mPath.reset(); 
    mPath.moveTo(0, mRadius); 
    mPath.lineTo(0, canvas.getHeight()); 
    mPath.lineTo(canvas.getWidth(), canvas.getHeight()); 
    mPath.lineTo(canvas.getWidth(), mRadius); 
    mPath.quadTo(canvas.getWidth(), 0, canvas.getWidth() - mRadius, 0); 
    mPath.lineTo(mRadius, 0); 
    mPath.quadTo(0, 0, 0, mRadius); 
    canvas.drawPath(mPath, mPaint); 
    canvas.clipPath(mPath); 
    canvas.drawBitmap(mBitmap, mMatrix, mPaint); 
} 
}

而且在layout.xml

<com.example.widget.RoundedImageViewmageView 
      android:id="@+id/ivProductImg" 
      android:layout_width="match_parent" 
      android:layout_height="150dp" 
      android:scaleType="fitXY" 
      />

来源

2018-01-10 09:51:46

使圆角的ImageView？

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