Custom circle control RoundImageView and control roundimageview

Custom circle control RoundImageView and control roundimageview

1. Custom circle control RoundImageView

Package com. ronye. customView; import android. content. context; import android. content. res. typedArray; import android. graphics. bitmap; import android. graphics. canvas; import android. graphics. paint; import android. graphics. porterDuff; import android. graphics. porterduxfermode; import android. graphics. rect; import android. graphics. drawable. bitmapDrawable; import android. graphics. drawable. drawable; import android. Graphics. drawable. ninePatchDrawable; import android. util. attributeSet; import android. widget. imageView; import com. ronye. r;/*** Created by $ {zyj} on 2015/8/27. * Description: Custom circular image */public class RoundImageView extends ImageView {private int mBorderThickness = 0; private Context mContext; private int defaultColor = 0 xFFFFFFFF; // if only one of them has a value, draw only one circular border private int mBorderOutsideColor = 0; private int mBord ErInsideColor = 0; // control default length and width: private int defaultWidth = 0; private int defaultHeight = 0; public RoundImageView (Context context) {super (context); mContext = context ;} public topology (Context context, AttributeSet attrs) {super (context, attrs); mContext = context; setCustomAttributes (attrs);} public RoundImageView (Context context, AttributeSet attrs, int defStyle) {super (context, attrs, DefStyle); mContext = context; setCustomAttributes (attrs);} private void setCustomAttributes (AttributeSet attrs) {TypedArray a = mContext. obtainStyledAttributes (attrs, R. styleable. roundedimageview); mBorderThickness =. getDimensionPixelSize (R. styleable. roundedimageview_border_thickness, 0); mBorderOutsideColor =. getColor (R. styleable. roundedimageview_border_outside_color, defaultColor); mBorder InsideColor =. getColor (R. styleable. response, defaultColor) ;}@ Override protected void onDraw (Canvas canvas) {Drawable drawable = getDrawable (); if (drawable = null) {return;} if (getWidth () = 0 | getHeight () = 0) {return;} this. measure (0, 0); if (drawable. getClass () = NinePatchDrawable. class) return; Bitmap B = (BitmapDrawable) drawable ). getBitmap (); Bitm Ap bitmap = B. copy (Bitmap. config. ARGB_8888, true); if (defaultWidth = 0) {defaultWidth = getWidth ();} if (defaultHeight = 0) {defaultHeight = getHeight ();} int radius = 0; if (mBorderInsideColor! = DefaultColor & mBorderOutsideColor! = DefaultColor) {// define two borders: the outer circle border and the inner circle border radius = (defaultWidth <defaultHeight? DefaultWidth: defaultHeight)/2-2 * mBorderThickness; // draw the inner circle drawCircleBorder (canvas, radius + mBorderThickness/2, mBorderInsideColor); // draw the outer circle drawCircleBorder (canvas, radius + mBorderThickness/2, mBorderOutsideColor);} else if (mBorderInsideColor! = DefaultColor & mBorderOutsideColor = defaultColor) {// define to draw a border radius = (defaultWidth <defaultHeight? DefaultWidth: defaultHeight)/2-mBorderThickness; border (canvas, radius + mBorderThickness/2, mBorderInsideColor);} else if (mBorderInsideColor = defaultColor & mBorderOutsideColor! = DefaultColor) {// define to draw a border radius = (defaultWidth <defaultHeight? DefaultWidth: defaultHeight)/2-mBorderThickness; drawCircleBorder (canvas, radius + mBorderThickness/2, mBorderOutsideColor);} else {// no border radius = (defaultWidth <defaultHeight? DefaultWidth: defaultHeight)/2;} Bitmap roundBitmap = getCroppedRoundBitmap (bitmap, radius); canvas. drawBitmap (roundBitmap, defaultWidth/2-radius, defaultHeight/2-radius, null );} /*** get the cropped circular image * @ param bmp * @ param radius * @ return */public Bitmap getCroppedRoundBitmap (Bitmap bmp, int radius) {Bitmap scaledSrcBmp; int diameter = radius * 2; // to prevent the width and height from being equal, the circular image is deformed. Therefore, the middle position of the rectangle is intercepted. The largest square image int bmp width = bmp. getWidth (); int bmpHeight = bmp. getHeight (); int squareWidth = 0, squareHeight = 0; int x = 0, y = 0; Bitmap squareBitmap; if (bmpHeight> BMP width) {// The height is higher than the width squareWidth = squareHeight = BMP width; x = 0; y = (bmpHeight-BMP width)/2; // capture the square image squareBitmap = Bitmap. createBitmap (bmp, x, y, squareWidth, squareHeight);} else if (bmpHeight <bmp width) {// larger than squareWid Th = squareHeight = bmpHeight; x = (BMP width-bmpHeight)/2; y = 0; squareBitmap = Bitmap. createBitmap (bmp, x, y, squareWidth, squareHeight);} else {squareBitmap = bmp;} if (squareBitmap. getWidth ()! = Diameter | squareBitmap. getHeight ()! = Diameter) {scaledSrcBmp = Bitmap. createScaledBitmap (squareBitmap, diameter, diameter, true);} else {scaledSrcBmp = squareBitmap;} Bitmap output = Bitmap. createBitmap (scaledSrcBmp. getWidth (), scaledSrcBmp. getHeight (), Bitmap. config. ARGB_8888); Canvas canvas = new Canvas (output); Paint paint = new Paint (); Rect rect = new Rect (0, 0, scaledSrcBmp. getWidth (), scaledSrcBmp. getHeight (); paint. setAntiAlias (true); paint. setFilterBitmap (true); paint. setDither (true); canvas. drawARGB (0, 0, 0, 0); canvas. drawCircle (scaledSrcBmp. getWidth ()/2, scaledSrcBmp. getHeight ()/2, scaledSrcBmp. getWidth ()/2, paint); paint. setXfermode (new porterduxfermode (PorterDuff. mode. SRC_IN); canvas. drawBitmap (scaledSrcBmp, rect, rect, paint); bmp = null; squareBitmap = null; scaledSrcBmp = null; return output ;} /*** edges circle */private void drawCircleBorder (Canvas canvas, int radius, int color) {Paint paint = new Paint ();/* de-sawtooth */paint. setAntiAlias (true); paint. setFilterBitmap (true); paint. setDither (true); paint. setColor (color);/* set the paint style to STROKE: hollow */paint. setStyle (Paint. style. STROKE);/* set the width of the paint box */paint. setStrokeWidth (mBorderThickness); canvas. drawCircle (defaultWidth/2, defaultHeight/2, radius, paint );}}

 

2. Define Your Own Property configuration file: attr. xml

<?xml version="1.0" encoding="utf-8"?> <resources>     <declare-styleable name="roundedimageview">         <attr name="border_thickness" format="dimension" />         <attr name="border_inside_color" format="color" />         <attr name="border_outside_color" format="color"></attr>     </declare-styleable> </resources>

 

3. Use the control activity_main.xml in xml configuration.

<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android" xmlns: tools = "http://schemas.android.com/tools" xmlns: imagecontrol = "http://schemas.android.com/apk/res-auto" android: layout_width = "fill_parent" android: layout_height = "fill_parent" android: orientation = "horizontal"> <! -- When the circular ImageView attribute is not specified, no external circle color is selected by default --> <! -- You must set the image resource to src or setImageResource (res) in the program. The background cannot be set to an image, so that the circular effect cannot be achieved. --> <com. dxd. roundimageview. roundImageView android: layout_width = "100dp" android: layout_height = "100dp" android: src = "@ drawable/img"/>
<! -- Border_outside_color the color of the external circle --> <! -- Border_inside_color color of the internal circle --> <! -- Border_thickness: width of the outer circle and inner circle -->
<Com. dxd. roundimageview. roundImageView android: layout_width = "100dp" android: layout_height = "100dp" android: src = "@ drawable/img" imagecontrol: border_inside_color = "# bc0978" imagecontrol: border_outside_color = "# ba3456" imagecontrol: border_thickness = "1dp"/> </LinearLayout>

 

4. Running result