ImageView rounded corner and iosimageview rounded corner

ImageView rounded corner and iosimageview rounded corner

Activity_main.xml

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:CustomImageView="http://schemas.android.com/apk/res/com.example.customview05imageview"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent" >    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="vertical" >        <com.example.customview05imageview.RoundImageView            android:layout_width="wrap_content"            android:layout_margin="5dp"            android:layout_height="wrap_content"            android:src="@drawable/icon" />                <ImageView          android:id="@+id/imageview"            android:layout_margin="5dp"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:src="@drawable/icon" />        <com.example.customview05imageview.view.CustomImageView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="10dp"            CustomImageView:src="@drawable/icon"            CustomImageView:type="circle" />        <com.example.customview05imageview.view.CustomImageView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="10dp"            CustomImageView:borderRadius="10dp"            CustomImageView:src="@drawable/icon"            CustomImageView:type="round" />        <com.example.customview05imageview.view.CustomImageView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_margin="10dp"            CustomImageView:borderRadius="20dp"            CustomImageView:src="@drawable/icon"            CustomImageView:type="round" />    </LinearLayout></ScrollView>

MainActivity

Package com. example. customview05imageview; import android. app. activity; import android. graphics. bitmap; import android. graphics. bitmap. config; import android. graphics. canvas; import android. graphics. paint; import android. graphics. porterDuff. mode; import android. graphics. porterduxfermode; import android. graphics. rect; import android. graphics. rectF; import android. graphics. drawable. bitmapDrawable; import android. graphics. drawable. drawable; import android. OS. bundle; import android. widget. imageView; public class MainActivity extends Activity {private ImageView imageview; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); imageview = (ImageView) findViewById (R. id. imageview); Drawable drawable = getResources (). getDrawable (R. drawable. icon); BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable; Bitmap bitmap = bitmapDrawable. getBitmap (); Bitmap roundCorner = toRoundCorner (bitmap, 30); imageview. setImageBitmap (roundCorner);} public static Bitmap toRoundCorner (Bitmap bitmap, int pixels) {// create bitmap object Bitmap output = Bitmap. createBitmap (bitmap. getWidth (), bitmap. getHeight (), Config. ARGB_8888); // creates a Paint brush and Canvas canvas Canvas = new Canvas (output); final paint Paint = new Paint (); final int color = 0xff0000242; // create a rectangle-position final Rect rect = new Rect (0, 0, bitmap. getWidth (), bitmap. getHeight (); final RectF rectF = new RectF (rect); // rounded final float roundPx = pixels; paint. setAntiAlias (true); // transparent canvas. drawARGB (0, 0, 0, 0); paint. setColor (color); canvas. drawRoundRect (rectF, roundPx, roundPx, paint); paint. setXfermode (new porterduduxfermode (Mode. SRC_IN); canvas. drawBitmap (bitmap, rect, rect, paint); return output ;}}

CustomImageView

Package com. example. customview05imageview. view; import android. content. context; import android. content. res. typedArray; import android. graphics. bitmap; import android. graphics. bitmap. config; import android. graphics. bitmapFactory; import android. graphics. canvas; import android. graphics. paint; import android. graphics. porterDuff; import android. graphics. porterduxfermode; import android. graphics. rectF; import Droid. util. attributeSet; import android. util. typedValue; import android. view. view; import com. example. customview05imageview. r; public class CustomImageView extends View {private int type; private static final int TYPE_CIRCLE = 0; private static final int TYPE_ROUND = 1; private Bitmap mSrc; private int mRadius; private int mWidth; private int mHeight;/*** initialize some custom parameters */public mimimageview (Context contex T, AttributeSet attrs) {this (context, attrs, 0);} public CustomImageView (Context context) {this (context, null);} public CustomImageView (Context context, AttributeSet attrs, int defStyle) {super (context, attrs, defStyle); TypedArray a = context. obtainStyledAttributes (attrs, R. styleable. customImageView, defStyle, 0); int n =. getIndexCount (); // The traversal property for (int I = 0; I <n; I ++) {int attr =. getIndex (I); s Witch (attr) {case R. styleable. customImageView_src: mSrc = BitmapFactory. decodeResource (getResources (),. getResourceId (attr, 0); break; case R. styleable. customImageView_type: // The default value is Circle -- 0 type =. getInt (attr, 0); break; case R. styleable. customImageView_borderRadius: // a function that is converted to a standard size. The default value is 10 DIPmRadius =. getDimensionPixelSize (attr, (int) TypedValue. applyDimension (TypedValue. COMPLEX_UNIT_DIP, 10f, getRe Sources (). getDisplayMetrics (); break;}. recycle ();}/*** calculate the height and width of the control */@ Overrideprotected void onMeasure (int widthMeasureSpec, int heightMeasureSpec) {/*** parameter: they indicate the space available for the control and the metadata setting width for the Space Description */int specMode = MeasureSpec. getMode (widthMeasureSpec); int specSize = MeasureSpec. getSize (widthMeasureSpec);/*** MeasureSpec. EXACTLY is the exact size. When we specify the layout_width or layout_height of the control as a specific value, such as andorid: layout_width = "50di P "* or FILL_PARENT is the case where the control size has been determined and the size is precise. */If (specMode = MeasureSpec. EXACTLY) // match_parent {mWidth = specSize;} else {// width int desireByImg = getPaddingLeft () + getPaddingRight () + mSrc. getWidth (); if (specMode = MeasureSpec. AT_MOST) // wrap_content {/*** at this time, as long as the control size does not exceed the maximum size allowed by the parent control */mWidth = Math. min (desireByImg, specSize);} elsemWidth = desireByImg;}/***** set height */specMode = MeasureSpec. getMode (heightMeasureSpec); specSize = MeasureSpe C. getSize (heightMeasureSpec); if (specMode = MeasureSpec. EXACTLY) // match_parent, accurate {mHeight = specSize;} else {int desire = getPaddingTop () + getPaddingBottom () + mSrc. getHeight (); if (specMode = MeasureSpec. AT_MOST) // wrap_content {mHeight = Math. min (desire, specSize);} elsemHeight = desire;} setMeasuredDimension (mWidth, mHeight);}/*** draw */@ Overrideprotected void onDraw (Canvas canvas) {swi Tch (type) {case TYPE_CIRCLE: int min = Math. min (mWidth, mHeight); // create a new Bitmap with the scaled BitmapmSrc = Bitmap. createScaledBitmap (mSrc, min, min, false); // draw a canvas at a certain position. drawBitmap (createCircleImage (mSrc, min), 0, 0, null); break; case TYPE_ROUND: canvas. drawBitmap (createRoundConerImage (mSrc), 0, 0, null); break;}/*** draw a circular image */private Bitmap createCircleImage (Bitmap source, int min) {final Paint Paint = new Paint (); paint. setAntiAlias (true); // This function creates a Bitmap target = Bitmap with a specific width, height, and color format. createBitmap (min, min, Config. ARGB_8888); // generate a Canvas canvas of the same size = new Canvas (target); // first draw the circle-original center xy coordinate and radius canvas. drawCircle (min/2, min/2, min/2, paint); // draw the intersection of two layers. Show upper layer paint. setXfermode (new porterduxfermode (PorterDuff. mode. SRC_IN); // draw the image canvas. drawBitmap (source, 0, 0, paint); return target;}/*** add rounded corners based on the source image */private Bitmap createRoundConerImage (Bitmap source) {final Paint paint = new Paint (); paint. setAntiAlias (true); Bitmap target = Bitmap. createBitmap (mWidth, mHeight, Config. ARGB_8888); Canvas canvas = new Canvas (target); RectF rect = new RectF (0, 0, source. getWidth (), source. getHeight (); canvas. drawRoundRect (rect, mRadius, mRadius, paint); paint. setXfermode (new porterduxfermode (PorterDuff. mode. SRC_IN); canvas. drawBitmap (source, 0, 0, paint); return target ;}}

RoundImageView

Package com. example. customview05imageview; import android. content. context; import android. graphics. canvas; import android. graphics. color; import android. graphics. paint; import android. graphics. porterDuff; import android. graphics. porterduxfermode; import android. graphics. rectF; import android. util. attributeSet; import android. widget. imageView; public class RoundImageView extends ImageView {public RoundImageView (Context context, AttributeSet attrs) {super (context, attrs); init ();} public RoundImageView (Context context) {super (context); init ();} private void init () {maskPaint. setAntiAlias (true); maskPaint. setXfermode (new porterduxfermode (PorterDuff. mode. SRC_IN); // zonePaint. setAntiAlias (true); zonePaint. setColor (Color. RED); // float density = getResources (). getDisplayMetrics (). density; rect_adius = rect_adius * density;} @ Override protected void onLayout (boolean changed, int left, int top, int right, int bottom) {super. onLayout (changed, left, top, right, bottom); int w = getWidth (); int h = getHeight (); roundRect. set (0, 0, w, h);} private final RectF roundRect = new RectF (); private float rect_adius = 20; private final Paint maskPaint = new Paint (); private final Paint zonePaint = new Paint (); @ Override public void draw (Canvas canvas) {canvas. saveLayer (roundRect, zonePaint, Canvas. ALL_SAVE_FLAG); // generate a red rounded rectangle canvas. drawRoundRect (roundRect, rect_adius, rect_adius, zonePaint); // canvas. saveLayer (roundRect, maskPaint, Canvas. ALL_SAVE_FLAG); super. draw (canvas); canvas. restore ();}}