android.os.FileUriExposedException

在华为拍照启动时报的异常  下面时bugly提供的解决方法 但是我自己在别的页面也是用拍照 没有问题 所以改成了自己的方法

解决方案

因为buildsdk是>=24,所以调用Uri.fromFile时保错，解决方法：

在application的onCreate里:
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
builder.detectFileUriExposure()

SDK>24 和<24的解决方案
public static void openFile(Context context, File file) {
        Intent intent = new Intent();
        intent.setAction(android.content.Intent.ACTION_VIEW);
        Uri uri;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            Uri contentUri = FileProvider.getUriForFile(context,
                    context.getApplicationContext().getPackageName() + ".provider",
                    file);
            intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
        } else {
            uri = Uri.fromFile(file);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.setDataAndType(uri, "application/vnd.android.package-archive");
        }
        context.startActivity(intent);
    }


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*****************************************************************************
***为Android N调用相机时崩溃提供一种解决方法，亲测有效***
***其中 savePath 为临时保存的路径，tempFileName为拍照 ***
***后存储的照片名称。                                                           ***
************************************************************By JayGoo ***
*******************************************************************************
 /**
     * 从拍照获取图片
     */
    public void camera() {
        Intent intent = null;
        // 判断存储卡是否可以用，可用进行存储

        if (StorageUtils.hasSdcard()) {
            //设定拍照存放到自己指定的目录,可以先建好
            File file = new File(savePath);
            if(!file.exists()){
                file.mkdirs();
            }
            Uri pictureUri;
            File pictureFile = new File(savePath, tempFileName);

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                ContentValues contentValues = new ContentValues(1);
                contentValues.put(MediaStore.Images.Media.DATA, pictureFile.getAbsolutePath());
                pictureUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,contentValues);
            }else {
                intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                pictureUri = Uri.fromFile(pictureFile);
            }
            if (intent != null) {
                intent.putExtra(MediaStore.EXTRA_OUTPUT,
                        pictureUri);
                startActivityForResult(intent, 1);
            }
        }
    }

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在Android N 安装apk文件时,也会报此错误,解决办法如下:
http://www.jianshu.com/p/577816c3ce93  (By Trojx)

之前使用的方法 

这是修改前的代码

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
        String currentPhotoName = System.currentTimeMillis() + ".jpg";
        File dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/zpay/");
        File out = new File(dir, currentPhotoName);
        PreferencesUtils.getInstance(this).put("REQUEST_PHOTO", out.getAbsolutePath());
        Uri uri = Uri.fromFile(out);// 这个方法在华为中报了异常
        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
//        intent.putExtra(MediaStore.Images.Media.ORIENTATION, 180);
        startActivityForResult(intent, REQUEST_PHOTO);

后修改为 

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
        SimpleDateFormat timeStampFormat = new SimpleDateFormat("yyyyMMddHHmmss");
        String filename = timeStampFormat.format(new Date());
        ContentValues values = new ContentValues();
        values.put(MediaStore.Images.Media.TITLE, filename);

        Uri uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);

        PreferencesUtils.getInstance(this).put("REQUEST_PHOTO", NewBinderActivity.getPath(FeedbackActivity.this, uri));


getpath方法

@SuppressLint("NewApi")
public static String getPath(final Context context, final Uri uri) {

    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
    // DocumentProvider
    if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
        // ExternalStorageProvider
        if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];
            if ("primary".equalsIgnoreCase(type)) {
                return Environment.getExternalStorageDirectory() + "/" + split[1];
            }
        }
        // DownloadsProvider
        else if (isDownloadsDocument(uri)) {
            final String id = DocumentsContract.getDocumentId(uri);
            final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
                    Long.valueOf(id));
            return getDataColumn(context, contentUri, null, null);
        }
        // MediaProvider
        else if (isMediaDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];
            Uri contentUri = null;
            if ("image".equals(type)) {
                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(type)) {
                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(type)) {
                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }
            final String selection = "_id=?";
            final String[] selectionArgs = new String[]{split[1]};

            return getDataColumn(context, contentUri, selection, selectionArgs);
        }
    }
    // MediaStore (and general)
    else if ("content".equalsIgnoreCase(uri.getScheme())) {
        // Return the remote address
        if (isGooglePhotosUri(uri))
            return uri.getLastPathSegment();
        return getDataColumn(context, uri, null, null);
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }
    return null;
}

public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = {column};

    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            final int index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is ExternalStorageProvider.
 */

public static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is DownloadsProvider.
 */
public static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is MediaProvider.
 */
public static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is Google Photos.
 */
public static boolean isGooglePhotosUri(Uri uri) {
    return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}