我正在尝试通过Moto Razr上的Gmail客户端共享我的内部存储文件,但是每次发送到我的测试gmail帐户时,我收到的除了附件以外的所有内容。
这是我调用和启动Gmail时添加文件作为附件的方式。
private void saveDaily() {
Intent intent = new Intent(android.content.Intent.ACTION_SEND_MULTIPLE);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_EMAIL, new String[] { loadEmailAddress() });
intent.putExtra(Intent.EXTRA_SUBJECT, "Daily");
intent.putExtra(Intent.EXTRA_TEXT, "Daily Log");
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
ArrayList<Uri> uris = new ArrayList<Uri>();
uris.add(saveDaily2File("dailyRecord.txt"));
Log.d(TAG_D, "Size: " + uris.size());
intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uris);
startActivity(Intent.createChooser(intent, "Send email"));
}
这是我如何实现自定义内容提供程序的方法。
public class SavedFileProvider extends ContentProvider {
private static final String TAG_D = "ContentProvider";
private static final HashMap<String, String> MIME_TYPES = new HashMap<String, String>();
static {
MIME_TYPES.put(".txt", "text/plain");
}
@Override
public String getType(Uri uri) {
String path = uri.toString();
for (String extension : MIME_TYPES.keySet()) {
if (path.endsWith(extension)) {
return (MIME_TYPES.get(extension));
}
}
return (null);
}
@Override
public ParcelFileDescriptor openFile(Uri uri, String mode)
throws FileNotFoundException {
Log.d(TAG_D, "openFile()");
File f = new File(getContext().getFilesDir(), uri.getPath());
Log.d(TAG_D, f.getAbsolutePath());
if (f.exists()) {
return (ParcelFileDescriptor.open(f,
ParcelFileDescriptor.MODE_READ_ONLY));
}
throw new FileNotFoundException(uri.getPath());
}
@Override
public Cursor query(Uri url, String[] projection, String selection,
String[] selectionArgs, String sort) {
throw new RuntimeException("Operation not supported");
}
@Override
public Uri insert(Uri uri, ContentValues initialValues) {
throw new RuntimeException("Operation not supported");
}
@Override
public int update(Uri uri, ContentValues values, String where,
String[] whereArgs) {
throw new RuntimeException("Operation not supported");
}
@Override
public int delete(Uri uri, String where, String[] whereArgs) {
throw new RuntimeException("Operation not supported");
}
private void copy(InputStream in, File dst) throws IOException {
FileOutputStream out = new FileOutputStream(dst);
byte[] buf = new byte[1024];
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
in.close();
out.close();
}
@Override
public boolean onCreate() {
Log.d(TAG_D, "onCreate()");
File f = new File(getContext().getFilesDir(), "dailyRecord.txt");
if (!f.exists()) {
AssetManager assets = getContext().getResources().getAssets();
try {
copy(assets.open("dailyRecord.txt"), f);
} catch (IOException e) {
Log.e("FileProvider", "Exception copying from assets", e);
return (false);
}
}
return (true);
}
接下来,我在我的AndroidManifest.xml文件中添加了以下几行代码。
<provider
android:name=".SavedFileProvider"
android:authorities="Package Path here"
android:exported="true"
android:grantUriPermissions="true"
android:multiprocess="true" >
</provider>
我想知道我在这里错过了什么。
我已经检查了链接:Link1,Link2。