本文整理汇总了Java中android.content.ContentResolver.openFileDescriptor方法的典型用法代码示例。如果您正苦于以下问题：Java ContentResolver.openFileDescriptor方法的具体用法？Java ContentResolver.openFileDescriptor怎么用？Java ContentResolver.openFileDescriptor使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类android.content.ContentResolver的用法示例。
在下文中一共展示了ContentResolver.openFileDescriptor方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: makeBitmap
import android.content.ContentResolver; //导入方法依赖的package包/类
public static Bitmap makeBitmap(int minSideLength, int maxNumOfPixels,
Uri uri, ContentResolver cr, boolean useNative) {
ParcelFileDescriptor input = null;
try {
input = cr.openFileDescriptor(uri, "r");
BitmapFactory.Options options = null;
if (useNative) {
options = createNativeAllocOptions();
}
return makeBitmap(minSideLength, maxNumOfPixels, uri, cr, input,
options);
} catch (IOException ex) {
Log.e(TAG, "", ex);
return null;
} finally {
closeSilently(input);
}
}
示例2: handleVideo
import android.content.ContentResolver; //导入方法依赖的package包/类
private void handleVideo(MediaInfo mVideoInfo) {
mCurrentVideoInfo = mVideoInfo;
String assetpath = mVideoInfo.getAssetcover();
File srcFile = new File(assetpath);
int dotindex = assetpath.lastIndexOf(".");
if (dotindex != -1) {
String type = assetpath.substring(dotindex, assetpath.length());
String compressPath = mSession.getCompressPath();
if (Build.VERSION.SDK_INT >= 18) {
FileOutputStream fos = null;
try {
mCacheVideoPath = compressPath + (compressPath.endsWith(File.separator) ? "" : File.separator) + "savorVideo" + type;
Uri uriForFile = FileProvider.getUriForFile(this, "com.savor.savorphone.fileprovider", srcFile);
ContentResolver contentResolver = getContentResolver();
ParcelFileDescriptor pFileDesCripter = contentResolver.openFileDescriptor(uriForFile, "r");
FileDescriptor fileDesCripter = pFileDesCripter.getFileDescriptor();
// MediaTranscoder.getInstance().transcodeVideo(fileDesCripter, mCacheVideoPath,
// MediaFormatStrategyPresets.createExportPreset960x540Strategy(), listener);
future = MediaTranscoder.getInstance().transcodeVideo(fileDesCripter, mCacheVideoPath,
MediaFormatStrategyPresets.createAndroid720pStrategy(8000 * 1000, 128 * 1000, 1), listener);
} catch (Exception e) {
e.printStackTrace();
handleFileCopy(mVideoInfo, srcFile, type, compressPath);
}
} else {
handleFileCopy(mVideoInfo, srcFile, type, compressPath);
}
}
}
示例3: mkdir
import android.content.ContentResolver; //导入方法依赖的package包/类
boolean mkdir(final Context context, final File file) throws IOException {
try {
if (file.exists()) {
return file.isDirectory();
}
final File tmpFile = new File(file, ".MediaWriteTemp");
final int albumId = getTemporaryAlbumId(context);
if (albumId == 0) {
throw new IOException("Failed to create temporary album id.");
}
final Uri albumUri = Uri.parse(String.format(Locale.US, ALBUM_ART_URI + "/%d", albumId));
final ContentValues values = new ContentValues();
values.put(MediaStore.MediaColumns.DATA, tmpFile.getAbsolutePath());
final ContentResolver contentResolver = context.getContentResolver();
if (contentResolver.update(albumUri, values, null, null) == 0) {
values.put(MediaStore.Audio.AlbumColumns.ALBUM_ID, albumId);
contentResolver.insert(Uri.parse(ALBUM_ART_URI), values);
}
try {
final ParcelFileDescriptor fd = contentResolver.openFileDescriptor(albumUri, "r");
if (fd != null)
fd.close();
} finally {
delete(context, tmpFile);
}
return file.exists();
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
示例4: openDocument
import android.content.ContentResolver; //导入方法依赖的package包/类
@Override
public ParcelFileDescriptor openDocument(String docId, String mode, CancellationSignal signal)
throws FileNotFoundException {
// Delegate to real provider
final long token = Binder.clearCallingIdentity();
try {
final long id = Long.parseLong(docId);
final ContentResolver resolver = getContext().getContentResolver();
return resolver.openFileDescriptor(mDm.getUriForDownloadedFile(id), mode);
} finally {
Binder.restoreCallingIdentity(token);
}
}
示例5: initializeOutputStream
import android.content.ContentResolver; //导入方法依赖的package包/类
private void initializeOutputStream() throws FileNotFoundException {
ContentResolver contentResolver = configuration.getContext().getContentResolver();
ParcelFileDescriptor outputFileDescriptor = contentResolver.openFileDescriptor(configuration.getUri(), "w");
backupState.setOutputFileDescriptor(outputFileDescriptor);
FileOutputStream fileOutputStream = new FileOutputStream(outputFileDescriptor.getFileDescriptor());
ZipOutputStream zipOutputStream = new ZipOutputStream(fileOutputStream);
backupState.setOutputStream(zipOutputStream);
}
示例6: getArtworkQuick_Base1
import android.content.ContentResolver; //导入方法依赖的package包/类
/**
* Return album artwork given the id
* if nothing is found, we try a downloaded one
*
* @param context
* @param album_id
* @return
*/
public static Bitmap getArtworkQuick_Base1(Context context, long album_id) {
if (album_id != -1) {
ContentResolver res = context.getContentResolver();
Uri uri = ContentUris.withAppendedId(MusicUtils.sArtworkUri, album_id);
if (uri != null) {
// ParcelFileDescriptor fd = null;
try {
ParcelFileDescriptor fd = res.openFileDescriptor(uri, "r");
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = 2;
o2.inDither = false;
o2.inPreferredConfig = Bitmap.Config.RGB_565;
Bitmap b = BitmapFactory.decodeFileDescriptor(
fd.getFileDescriptor(), null, o2);
if (b != null) {
return b;
} else {
b = getArtworkDownloadedResized(context, album_id);
if (b != null) {
return b;
} else {
return null;
}
}
} catch (FileNotFoundException e) {
return null;
}
}
}
return null;
}
示例7: makeInputStream
import android.content.ContentResolver; //导入方法依赖的package包/类
private static ParcelFileDescriptor makeInputStream(
Uri uri, ContentResolver cr) {
try {
return cr.openFileDescriptor(uri, "r");
} catch (IOException ex) {
return null;
}
}
示例8: buildInputFileDescriptor
import android.content.ContentResolver; //导入方法依赖的package包/类
private ParcelFileDescriptor buildInputFileDescriptor() throws FileNotFoundException {
ContentResolver contentResolver = configuration.getContext().getContentResolver();
return contentResolver.openFileDescriptor(configuration.getUri(), "r");
}