ImageView learning, imageview

ImageView learning, imageview

 

Package liu. roundimagedemo. view; import android. content. context; import android. graphics. bitmap; import android. graphics. bitmapFactory; import android. graphics. drawable. drawable; import android. OS. handler; import android. OS. message; import android. support. v4.graphics. drawable. roundedBitmapDrawable; import android. support. v4.graphics. drawable. roundedBitmapDrawableFactory; import android. util. attributeSet; imp Ort android. widget. imageView; import java. io. fileInputStream; import java. io. fileNotFoundException; import java. io. IOException; import java. io. inputStream; import java.net. httpURLConnection; import java.net. malformedURLException; import java.net. URL;/*** Created by Liu Nan on 2016/8/31 0031.22: 14 */public class NetImageView extends ImageView {Bitmap mBitmap;/*** whether it is a circle */private boolean isRound = false; p Ublic void setRound (boolean round) {isRound = round;} Handler mHandler = new Handler () {@ Override public void handleMessage (Message msg) {// super. handleMessage (msg); if (! IsRound) {setImageBitmap (mBitmap); return;} Drawable drawable = createRoundBitmap (mBitmap); setImageDrawable (drawable );}}; /*** create a circular image * @ param src * @ return */private Drawable createRoundBitmap (Bitmap src) {Bitmap dst; if (src. getWidth ()> src. getHeight () {dst = Bitmap. createBitmap (src, src. getWidth ()/2-src.getHeight ()/2,0, src. getHeight (), src. getHeight ();} else {dst = Bitmap. createBitmap (src, 0, Src. getHeight ()/2-src.getWidth ()/2, src. getWidth (), src. getWidth ();} RoundedBitmapDrawable roundedBitmapDrawable = RoundedBitmapDrawableFactory. create (getResources (), dst); roundedBitmapDrawable. setAntiAlias (true); roundedBitmapDrawable. setCornerRadius (dst. getWidth ()/2); return roundedBitmapDrawable;} public NetImageView (Context context) {super (context);} public NetImageView (Context context, TributeSet attrs) {super (context, attrs);}/*** sets the image of the local file * @ param url */public void setLocalImage (String url) {FileInputStream FCM = null; try {FCM = new FileInputStream (url); mBitmap = BitmapFactory. decodeStream (FS); mHandler. sendEmptyMessage (0x1324); // setImageBitmap (decodeStream);} catch (FileNotFoundException e) {e. printStackTrace ();} finally {if (FS! = Null) {try {FS. close ();} catch (IOException e) {e. printStackTrace () ;}}}/*** sets the resource file * @ param resId */public void setResourceImage (int resId) {mBitmap = BitmapFactory. decodeResource (getResources (), resId); mHandler. sendEmptyMessage (0x133); // setImageBitmap (bitmap);} public void setUrlImage (final String url) {new Thread () {@ Override public void run () {try {URL uri = new URL (url); HttpURLConnection conn = (HttpURLConnection) uri. openConnection (); // conn. setConnectTimeout (100); // conn. setDoInput (true); // conn. setReadTimeout (100); int responseCode = conn. getResponseCode (); if (responseCode = 200) {InputStream is = conn. getInputStream (); mBitmap = BitmapFactory. decodeStream (is); mHandler. sendEmptyMessage (0x343); is. close () ;}} catch (MalformedURLException e) {e. printStackTrace ();} catch (IOException e) {e. printStackTrace () ;}finally {}}}. start ();}}