Android腾讯微薄客户端开发七:图片加圆角以及时间处理工具类

阅读更多给图片加上圆角效果好看多了。

public class ImageUtil {public static InputStream getRequest(String path) throws Exception {URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setRequestMethod("GET");conn.setConnectTimeout(5000);if (conn.getResponseCode() == 200){return conn.getInputStream();}return null;}public static byte[] readInputStream(InputStream inStream) throws Exception {ByteArrayOutputStream outSteam = new ByteArrayOutputStream();byte[] buffer = new byte[4096];int len = 0;while ((len = inStream.read(buffer)) != -1) {outSteam.write(buffer, 0, len);}outSteam.close();inStream.close();return outSteam.toByteArray();}public static Drawable loadImageFromUrl(String url){        URL m;        InputStream i = null;        try {            m = new URL(url);            i = (InputStream) m.getContent();        } catch (MalformedURLException e1) {            e1.printStackTrace();        } catch (IOException e) {            e.printStackTrace();        }        Drawable d = Drawable.createFromStream(i, "src");        return d;    }public static Drawable getDrawableFromUrl(String url) throws Exception{ return Drawable.createFromStream(getRequest(url),null);}public static Bitmap getBitmapFromUrl(String url) throws Exception{byte[] bytes = getBytesFromUrl(url);return byteToBitmap(bytes);}public static Bitmap getRoundBitmapFromUrl(String url,int pixels) throws Exception{byte[] bytes = getBytesFromUrl(url);Bitmap bitmap = byteToBitmap(bytes);return toRoundCorner(bitmap, pixels);} public static Drawable geRoundDrawableFromUrl(String url,int pixels) throws Exception{byte[] bytes = getBytesFromUrl(url);BitmapDrawable bitmapDrawable = (BitmapDrawable)byteToDrawable(bytes);return toRoundCorner(bitmapDrawable, pixels);} public static byte[] getBytesFromUrl(String url) throws Exception{ return readInputStream(getRequest(url));}public static Bitmap byteToBitmap(byte[] byteArray){if(byteArray.length!=0){             return BitmapFactory.decodeByteArray(byteArray, 0, byteArray.length);         }         else {             return null;         }  }public static Drawable byteToDrawable(byte[] byteArray){ByteArrayInputStream ins = new ByteArrayInputStream(byteArray);return Drawable.createFromStream(ins, null);}public static byte[] Bitmap2Bytes(Bitmap bm){ ByteArrayOutputStream baos = new ByteArrayOutputStream();bm.compress(Bitmap.CompressFormat.PNG, 100, baos);return baos.toByteArray();}public static Bitmap drawableToBitmap(Drawable drawable) {Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),drawable.getIntrinsicHeight(),drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888: Bitmap.Config.RGB_565);Canvas canvas = new Canvas(bitmap);drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),drawable.getIntrinsicHeight());drawable.draw(canvas);return bitmap;} /**      * 图片去色,返回灰度图片      * @param bmpOriginal 传入的图片     * @return 去色后的图片     */    public static Bitmap toGrayscale(Bitmap bmpOriginal) {        int width, height;        height = bmpOriginal.getHeight();        width = bmpOriginal.getWidth();            Bitmap bmpGrayscale = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);        Canvas c = new Canvas(bmpGrayscale);        Paint paint = new Paint();        ColorMatrix cm = new ColorMatrix();        cm.setSaturation(0);        ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);        paint.setColorFilter(f);        c.drawBitmap(bmpOriginal, 0, 0, paint);        return bmpGrayscale;    }            /**     * 去色同时加圆角     * @param bmpOriginal 原图     * @param pixels 圆角弧度     * @return 修改后的图片     */    public static Bitmap toGrayscale(Bitmap bmpOriginal, int pixels) {        return toRoundCorner(toGrayscale(bmpOriginal), pixels);    }        /**     * 把图片变成圆角     * @param bitmap 需要修改的图片     * @param pixels 圆角的弧度     * @return 圆角图片     */    public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {        Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);        Canvas canvas = new Canvas(output);        final int color = 0xff424242;        final Paint paint = new Paint();        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());        final RectF rectF = new RectF(rect);        final float roundPx = pixels;        paint.setAntiAlias(true);        canvas.drawARGB(0, 0, 0, 0);        paint.setColor(color);        canvas.drawRoundRect(rectF, roundPx, roundPx, paint);        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));        canvas.drawBitmap(bitmap, rect, rect, paint);        return output;    }       /**     * 使圆角功能支持BitampDrawable     * @param bitmapDrawable      * @param pixels      * @return     */    public static BitmapDrawable toRoundCorner(BitmapDrawable bitmapDrawable, int pixels) {        Bitmap bitmap = bitmapDrawable.getBitmap();        bitmapDrawable = new BitmapDrawable(toRoundCorner(bitmap, pixels));        return bitmapDrawable;    }}

public class TimeUtil {public static String converTime(long timestamp){long currentSeconds = System.currentTimeMillis()/1000;long timeGap = currentSeconds-timestamp;//与现在时间相差秒数String timeStr = null;if(timeGap>24*60*60){//1天以上timeStr = timeGap/(24*60*60)+"天前";}else if(timeGap>60*60){//1小时-24小时timeStr = timeGap/(60*60)+"小时前";}else if(timeGap>60){//1分钟-59分钟timeStr = timeGap/60+"分钟前";}else{//1秒钟-59秒钟timeStr = "刚刚";}return timeStr;}public static String getStandardTime(long timestamp){SimpleDateFormat sdf = new SimpleDateFormat("MM月dd日 HH:mm");Date date = new Date(timestamp*1000);sdf.format(date);return sdf.format(date);}}

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