常用方法(1)------根据图片的url路径获得Bitmap对象

1、本地url转换为Bitmap

  /**     * @param uri：图片的本地url地址     * @return Bitmap；     */    private Bitmap decodeUriAsBitmap(Uri uri) {        Bitmap bitmap = null;        try {            bitmap = BitmapFactory.decodeStream(getContentResolver().openInputStream(uri));        } catch (FileNotFoundException e) {            e.printStackTrace();            return null;        }        return bitmap;    }

2、网络url转换为Bitmap

/** * 根据图片的url路径获得Bitmap对象 * @param url * @return */private Bitmap decodeUriAsBitmapFromNet(String url) {    URL fileUrl = null;    Bitmap bitmap = null;    try {        fileUrl = new URL(url);    } catch (MalformedURLException e) {        e.printStackTrace();    }    try {        HttpURLConnection conn = (HttpURLConnection) fileUrl                .openConnection();        conn.setDoInput(true);        conn.connect();        InputStream is = conn.getInputStream();        bitmap = BitmapFactory.decodeStream(is);        is.close();    } catch (IOException e) {        e.printStackTrace();    }    return bitmap;}

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