HOWTO避免＆QUOT; EACCES权限被拒绝＆QUOT;对SD卡与奇巧4.4.2版本。从谷歌的新政策

问题描述

随着Android奇巧4.4.2版本实施了WRITEACCESS一个新的谷歌的政策，这一点我不明白为止。

With the android kitkat 4.4.2 version is a new google policy implemented for writeaccess, which I do not understand so far.

我读了很多关于这个问题与其他应用程序。他们得到了EACCES权限被拒绝。我的应用程序需要写/解压缩一个压缩文件，也写一个SQLite数据库。

I read a lot about this issue with other apps. They get a "EACCES permission denied". My app needs to write/unzip a zipfile, also write to a sqlite-database.

这怎么EACCES权限被拒绝的问题与Android版本4.4.2解决了奇巧？

How can this EACCES permission denied issue be solved with Android version 4.4.2 KITKAT ?

推荐答案

我发现的;没有必要对生根。
这里有一个例子：

I found a working solution to this issue in xda forum; there is no need for rooting.
Here's an example :

/**
 * Returns an OutputStream to write to the file. The file will be truncated immediately.
 */
public OutputStream write()
        throws IOException {
    if (file.exists() && file.isDirectory()) {
        throw new IOException("File exists and is a directory.");
    }

    // Delete any existing entry from the media database.
    // This may also delete the file (for media types), but that is irrelevant as it will be truncated momentarily in any case.
    String where = MediaStore.MediaColumns.DATA + "=?";
    String[] selectionArgs = new String[] { file.getAbsolutePath() };
    contentResolver.delete(filesUri, where, selectionArgs);

    ContentValues values = new ContentValues();
    values.put(MediaStore.Files.FileColumns.DATA, file.getAbsolutePath());
    Uri uri = contentResolver.insert(filesUri, values);

    if (uri == null) {
        // Should not occur.
        throw new IOException("Internal error.");
    }

    return contentResolver.openOutputStream(uri);
}

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