HTC Desire 上的内部存储

发布于 2024-11-09 10:43:51 字数 949 浏览 3 评论 0原文

我正在尝试将文件保存到内部存储（不是 SD 卡）。正如文档指出的，如果我使用 getExternalStorageDirectory()，数据将被放置在 /Android/data// 下，但那里什么也没有。此代码取自此处< /a>.不过，类似的代码也适用于 Archos。

File path = Environment.getExternalStorageDirectory();
File file = new File(path, "DemoPicture.jpg");
txtList.append(file.getPath());

try {
    path.mkdirs();
    InputStream is = getResources().openRawResource(R.drawable.icon);
    OutputStream os = new FileOutputStream(file);
    byte[] data = new byte[is.available()];
    is.read(data);
    os.write(data);
    is.close();
    os.close();
} catch (IOException e) {
    Log.d("ExternalStorage", "Error writing " + file, e);
}

我使用Android SDK 2.1。权限WRITE_EXTERNAL_STORAGE已添加到清单中。 logcat 中没有错误。有什么提示吗？

原文

I'm trying to save a file to internal storage (not SD Card). As the documentation points out, if I use getExternalStorageDirectory(), the data will be placed under /Android/data/<package_name>/, but there's nothing there. This code is taken from here. Similar code worked on Archos, though.

File path = Environment.getExternalStorageDirectory();
File file = new File(path, "DemoPicture.jpg");
txtList.append(file.getPath());

try {
    path.mkdirs();
    InputStream is = getResources().openRawResource(R.drawable.icon);
    OutputStream os = new FileOutputStream(file);
    byte[] data = new byte[is.available()];
    is.read(data);
    os.write(data);
    is.close();
    os.close();
} catch (IOException e) {
    Log.d("ExternalStorage", "Error writing " + file, e);
}

I use Android SDK 2.1. Permission WRITE_EXTERNAL_STORAGEis already added in the manifest. No error in logcat. Any hint?

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诗笺 2024-11-16 10:43:51

您混淆了内部和外部存储。您正在谈论内部存储，而实际上您正在使用外部存储：

File path = Environment.getExternalStorageDirectory();

生成的文件将位于此处：/mnt/sdcard/DemoPicture.jpg。但如果您确实想使用内部存储，请查看 Context.openFileOutput 函数。

编辑：

文件路径=Environment.getExternalStorageDirectory();
文件 file = new File(路径, "DemoPicture.jpg");
txtList.append(file.getPath());

try {
    path.mkdirs();
    InputStream is = getResources().openRawResource(R.drawable.icon);
    OutputStream os = new FileOutputStream(file);
    byte[] data = new byte[is.available()];
    is.read(data);
    os.write(data);
    is.close();
    os.close();
} catch (IOException e) {
    Toast.makeText(this, "Failed to write a file", Toast.LENGTH_LONG).show();
}

You're confusing Internal and External storages. You are talking about internal storage, while actually you are using external storage:

File path = Environment.getExternalStorageDirectory();

The resulting file will be located here: /mnt/sdcard/DemoPicture.jpg. But if your really want to use internal storage, take a look at Context.openFileOutput function.

EDIT:

File path = Environment.getExternalStorageDirectory();
File file = new File(path, "DemoPicture.jpg");
txtList.append(file.getPath());

try {
    path.mkdirs();
    InputStream is = getResources().openRawResource(R.drawable.icon);
    OutputStream os = new FileOutputStream(file);
    byte[] data = new byte[is.available()];
    is.read(data);
    os.write(data);
    is.close();
    os.close();
} catch (IOException e) {
    Toast.makeText(this, "Failed to write a file", Toast.LENGTH_LONG).show();
}

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