保存图片到系统相册并更新

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/houjunkang363/article/details/76645546

在网上搜了很多答案,基本上都是复制粘贴,不是这里缺了,就是那里漏了。用了我提供的方法,如果不能保存成功,你来找我!!我写的方法解决了各种蛋疼的兼容性问题,只用传context和bitmap进来就OK了!

public static void saveImageToGallery(Context context, Bitmap bmp) {
    // 首先保存图片
    File appDir = new File(Environment.getExternalStorageDirectory(), "QRCode");
    if (!appDir.exists()) {
        appDir.mkdir();
    }
    String fileName = System.currentTimeMillis() + ".jpg";
    File file = new File(appDir, fileName);
    try {
        FileOutputStream fos = new FileOutputStream(file);
        bmp.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        fos.flush();
        fos.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(), fileName, null);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }
    // 最后通知图库更新
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // 判断SDK版本是不是4.4或者高于4.4
        String[] paths = new String[]{file.getAbsolutePath()};
        MediaScannerConnection.scanFile(context, paths, null, null);
    } else {
        final Intent intent;
        if (file.isDirectory()) {
            intent = new Intent(Intent.ACTION_MEDIA_MOUNTED);
            intent.setClassName("com.android.providers.media", "com.android.providers.media.MediaScannerReceiver");
            intent.setData(Uri.fromFile(Environment.getExternalStorageDirectory()));
        } else {
            intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
            intent.setData(Uri.fromFile(file));
        }
        context.sendBroadcast(intent);
    }
}

猜你喜欢

转载自blog.csdn.net/houjunkang363/article/details/76645546