保存图片到图库更新图库

Bitmap image = ((BitmapDrawable) iv.getDrawable()).getBitmap();

if (!TextUtils.isEmpty(pics[vpPicNine.getCurrentItem()])) {
    String[] sts = TextUtils.convertStr(pics[vpPicNine.getCurrentItem()]);
    PicUtils.saveImageToGallery(HuPicLunBoActivity.this, image, sts[sts.length - 1]);
} else {
    ToastUtils.showSnackBar(snackView, "保存失败");

}

/**
 * 参数一：上下文
 * 参数二：图片
 * 参数三：网络地址最后一部分；
 * @param context
 * @param bmp
 * @param fileNa1me
 */

public static void saveImageToGallery(Context context, Bitmap bmp,
                                      String fileNa1me) {
    if (bmp == null) {
        Toast.makeText(context, "保存失败", Toast.LENGTH_SHORT).show();
        return;
    }
    // 首先保存图片
    File appDir = new File(Environment.getExternalStorageDirectory(),
            "DeskTop/photo");
    if (deleteLastFromFloder(appDir.toString(), fileNa1me)) {
        //图片以保存
        Toast.makeText(context, "已保存", Toast.LENGTH_SHORT).show();
        return;
    }

    if (!appDir.exists()) {
        appDir.mkdirs();//创建文件夹
    }
    File file = new File(appDir, fileNa1me);
    String string = file.getPath();
    if (!file.exists()) {
        try {
            file.createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    Toast.makeText(context, "保存成功", Toast.LENGTH_SHORT).show();
    L.d("aaa", "文件地址" + string);
    FileOutputStream out;
    try {
        out = new FileOutputStream(file);
        bmp.compress(Bitmap.CompressFormat.JPEG, 100, out);

        out.flush();
        out.close();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    // // 其次把文件插入到系统图库
    try {
        MediaStore.Images.Media.insertImage(context.getContentResolver(),
                file.getAbsolutePath(), string, null);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    // 最后通知图库更新
    context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
            Uri.parse("file://" + "DeskTop/photo")));
    context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));
    MediaScannerConnection.scanFile(context,
            new String[]{file.toString()}, null,
            new MediaScannerConnection.OnScanCompletedListener() {
                public void onScanCompleted(String path, Uri uri) {

                }
            });
}





/**
*遍历该文件下的文件名
*/

public static boolean deleteLastFromFloder(String path, String strPath) {
    boolean success = false;
    try {
        ArrayList<File> images = new ArrayList<File>();
        getFiles(images, path);
        File latestSavedImage = images.get(0);
        if (latestSavedImage.exists()) {
            for (int i = 1; i < images.size(); i++) {
                File nextFile = images.get(i);
                if (TextUtils.isString(strPath.trim(), nextFile.toString().trim())) {
                    L.d("aaa", "图片文件名称" + nextFile.toString());
                    return true;
                }

            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return success;
}

public static void getFiles(ArrayList<File> fileList, String path) {
    File[] allFiles = new File(path).listFiles();
    for (int i = 0; i < allFiles.length; i++) {
        File file = allFiles[i];
        if (file.isFile()) {
            fileList.add(file);
        } else if (!file.getAbsolutePath().contains(".thumnail")) {
            getFiles(fileList, file.getAbsolutePath());
        }
    }
}

/**
 * 某个字段是否包含该字符
 *
 * @param questId 短字符
 * @param str     长字符
 * @return
 */
public static boolean isString(String questId, String str) {

    if (str.indexOf(questId) != -1) {
        return true;
    }
    return false;

}

/**
 * 以/字符串 得到字符数组
 *
 * @param str
 * @return
 */
public static String[] convertStr(String str) {
    String[] strArray;
    strArray = str.split("/"); //拆分字符为"," ,然后把结果交给数组strArray
    return strArray;
}