圓角矩形形狀從圖像檢索從android中的服務器

Question

我想給圓角矩形形狀的圖像，我從服務器中獲取它們並在列表視圖中顯示。 目前，我可以在我的可繪製文件夾中提供圓角矩形形狀的圖像。但是發現從服務器獲取圖像的困難。

請讓我知道我能做到這一點..

謝謝

Answer 1

回合角落，查看，只需創建XML繪製的，適用半徑率到圖像的角落，以及你可以申請背景顏色也可以查看您的視圖，請查看代碼和步驟。

在Res中創建一個名爲的文件夾，在drawable中保留下面的xml，並且您可以在運行時或在layout中將xml設置爲您的視圖。

round_border.xml

<?xml version="1.0" encoding="UTF-8"?> 
<shape xmlns:android="http://schemas.android.com/apk/res/android"> 
<solid android:color="#5a5a5a"/> 
<corners android:radius="10px"/> 
<padding android:left="20dp" android:top="20dp" android:right="20dp" android:bottom="20dp"/> 
</shape> 

中的XML

android:background="@drawable/round_border" 

java的代碼

ImageView im=(ImageView)findViewById(R.id.imageView2); 
    im.setBackgroundResource(R.drawable.round_border); 

Answer 2

試試這個

int radius=5; 
int margin=5; 

Picasso.with(context) 
    .load(imageurl) 
    .transform(new RoundedCornersTransformation(radius,margin)) 
    .into(imageview); 

RoundedCornersTransformation.java

public class RoundedCornersTransformation implements Transformation { 

    public enum CornerType { 
     ALL, 
     TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT, 
     TOP, BOTTOM, LEFT, RIGHT, 
     OTHER_TOP_LEFT, OTHER_TOP_RIGHT, OTHER_BOTTOM_LEFT, OTHER_BOTTOM_RIGHT, 
     DIAGONAL_FROM_TOP_LEFT, DIAGONAL_FROM_TOP_RIGHT 
    } 

    private int mRadius; 
    private int mDiameter; 
    private int mMargin; 
    private CornerType mCornerType; 

    public RoundedCornersTransformation(int radius, int margin) { 
     this(radius, margin, CornerType.ALL); 
    } 

    public RoundedCornersTransformation(int radius, int margin, CornerType cornerType) { 
     mRadius = radius; 
     mDiameter = radius * 2; 
     mMargin = margin; 
     mCornerType = cornerType; 
    } 

    @Override public Bitmap transform(Bitmap source) { 

     int width = source.getWidth(); 
     int height = source.getHeight(); 

     Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); 

     Canvas canvas = new Canvas(bitmap); 
     Paint paint = new Paint(); 
     paint.setAntiAlias(true); 
     paint.setShader(new BitmapShader(source, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP)); 
     drawRoundRect(canvas, paint, width, height); 
     source.recycle(); 

     return bitmap; 
    } 

    private void drawRoundRect(Canvas canvas, Paint paint, float width, float height) { 
     float right = width - mMargin; 
     float bottom = height - mMargin; 

     switch (mCornerType) { 
      case ALL: 
       canvas.drawRoundRect(new RectF(mMargin, mMargin, right, bottom), mRadius, mRadius, paint); 
       break; 
      case TOP_LEFT: 
       drawTopLeftRoundRect(canvas, paint, right, bottom); 
       break; 
      case TOP_RIGHT: 
       drawTopRightRoundRect(canvas, paint, right, bottom); 
       break; 
      case BOTTOM_LEFT: 
       drawBottomLeftRoundRect(canvas, paint, right, bottom); 
       break; 
      case BOTTOM_RIGHT: 
       drawBottomRightRoundRect(canvas, paint, right, bottom); 
       break; 
      case TOP: 
       drawTopRoundRect(canvas, paint, right, bottom); 
       break; 
      case BOTTOM: 
       drawBottomRoundRect(canvas, paint, right, bottom); 
       break; 
      case LEFT: 
       drawLeftRoundRect(canvas, paint, right, bottom); 
       break; 
      case RIGHT: 
       drawRightRoundRect(canvas, paint, right, bottom); 
       break; 
      case OTHER_TOP_LEFT: 
       drawOtherTopLeftRoundRect(canvas, paint, right, bottom); 
       break; 
      case OTHER_TOP_RIGHT: 
       drawOtherTopRightRoundRect(canvas, paint, right, bottom); 
       break; 
      case OTHER_BOTTOM_LEFT: 
       drawOtherBottomLeftRoundRect(canvas, paint, right, bottom); 
       break; 
      case OTHER_BOTTOM_RIGHT: 
       drawOtherBottomRightRoundRect(canvas, paint, right, bottom); 
       break; 
      case DIAGONAL_FROM_TOP_LEFT: 
       drawDiagonalFromTopLeftRoundRect(canvas, paint, right, bottom); 
       break; 
      case DIAGONAL_FROM_TOP_RIGHT: 
       drawDiagonalFromTopRightRoundRect(canvas, paint, right, bottom); 
       break; 
      default: 
       canvas.drawRoundRect(new RectF(mMargin, mMargin, right, bottom), mRadius, mRadius, paint); 
       break; 
     } 
    } 

    private void drawTopLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, mMargin + mDiameter), 
       mRadius, mRadius, paint); 
     canvas.drawRect(new RectF(mMargin, mMargin + mRadius, mMargin + mRadius, bottom), paint); 
     canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom), paint); 
    } 

    private void drawTopRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, mMargin + mDiameter), mRadius, 
       mRadius, paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom), paint); 
     canvas.drawRect(new RectF(right - mRadius, mMargin + mRadius, right, bottom), paint); 
    } 

    private void drawBottomLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, mMargin + mDiameter, bottom), 
       mRadius, mRadius, paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom - mRadius), paint); 
     canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom), paint); 
    } 

    private void drawBottomRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(right - mDiameter, bottom - mDiameter, right, bottom), mRadius, 
       mRadius, paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom), paint); 
     canvas.drawRect(new RectF(right - mRadius, mMargin, right, bottom - mRadius), paint); 
    } 

    private void drawTopRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, right, mMargin + mDiameter), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin, mMargin + mRadius, right, bottom), paint); 
    } 

    private void drawBottomRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, right, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, right, bottom - mRadius), paint); 
    } 

    private void drawLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom), paint); 
    } 

    private void drawRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom), paint); 
    } 

    private void drawOtherTopLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, right, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom - mRadius), paint); 
    } 

    private void drawOtherTopRightRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, right, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin + mRadius, mMargin, right, bottom - mRadius), paint); 
    } 

    private void drawOtherBottomLeftRoundRect(Canvas canvas, Paint paint, float right, float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, right, mMargin + mDiameter), mRadius, mRadius, 
       paint); 
     canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin, mMargin + mRadius, right - mRadius, bottom), paint); 
    } 

    private void drawOtherBottomRightRoundRect(Canvas canvas, Paint paint, float right, 
               float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, right, mMargin + mDiameter), mRadius, mRadius, 
       paint); 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, bottom), mRadius, mRadius, 
       paint); 
     canvas.drawRect(new RectF(mMargin + mRadius, mMargin + mRadius, right, bottom), paint); 
    } 

    private void drawDiagonalFromTopLeftRoundRect(Canvas canvas, Paint paint, float right, 
                float bottom) { 
     canvas.drawRoundRect(new RectF(mMargin, mMargin, mMargin + mDiameter, mMargin + mDiameter), 
       mRadius, mRadius, paint); 
     canvas.drawRoundRect(new RectF(right - mDiameter, bottom - mDiameter, right, bottom), mRadius, 
       mRadius, paint); 
     canvas.drawRect(new RectF(mMargin, mMargin + mRadius, right - mDiameter, bottom), paint); 
     canvas.drawRect(new RectF(mMargin + mDiameter, mMargin, right, bottom - mRadius), paint); 
    } 

    private void drawDiagonalFromTopRightRoundRect(Canvas canvas, Paint paint, float right, 
                float bottom) { 
     canvas.drawRoundRect(new RectF(right - mDiameter, mMargin, right, mMargin + mDiameter), mRadius, 
       mRadius, paint); 
     canvas.drawRoundRect(new RectF(mMargin, bottom - mDiameter, mMargin + mDiameter, bottom), 
       mRadius, mRadius, paint); 
     canvas.drawRect(new RectF(mMargin, mMargin, right - mRadius, bottom - mRadius), paint); 
     canvas.drawRect(new RectF(mMargin + mRadius, mMargin + mRadius, right, bottom), paint); 
    } 

    @Override public String key() { 
     return "RoundedTransformation(radius=" + mRadius + ", margin=" + mMargin + ", diameter=" 
       + mDiameter + ", cornerType=" + mCornerType.name() + ")"; 
    } 
}