本文整理匯總了Java中android.os.ParcelFileDescriptor.MODE_TRUNCATE屬性的典型用法代碼示例。如果您正苦於以下問題:Java ParcelFileDescriptor.MODE_TRUNCATE屬性的具體用法?Java ParcelFileDescriptor.MODE_TRUNCATE怎麽用?Java ParcelFileDescriptor.MODE_TRUNCATE使用的例子?那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類android.os.ParcelFileDescriptor
的用法示例。
在下文中一共展示了ParcelFileDescriptor.MODE_TRUNCATE屬性的4個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: openFile
@Override
public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException {
Log.w(TAG, "openFile(" + uri + ", " + mode + ")");
switch (uriMatcher.match(uri)) {
case SINGLE_ROW:
Log.w(TAG, "Fetching message body for a single row...");
File tmpFile = getFile(uri);
final int fileMode;
switch (mode) {
case "w": fileMode = ParcelFileDescriptor.MODE_TRUNCATE |
ParcelFileDescriptor.MODE_CREATE |
ParcelFileDescriptor.MODE_WRITE_ONLY; break;
case "r": fileMode = ParcelFileDescriptor.MODE_READ_ONLY; break;
default: throw new IllegalArgumentException("requested file mode unsupported");
}
Log.w(TAG, "returning file " + tmpFile.getAbsolutePath());
return ParcelFileDescriptor.open(tmpFile, fileMode);
}
throw new FileNotFoundException("Request for bad message.");
}
示例2: parseMode
public static int parseMode(String mode) {
final int modeBits;
if ("r".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_ONLY;
} else if ("w".equals(mode) || "wt".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE;
} else if ("wa".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_APPEND;
} else if ("rw".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_WRITE
| ParcelFileDescriptor.MODE_CREATE;
} else if ("rwt".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_WRITE
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE;
} else {
throw new IllegalArgumentException("Bad mode '" + mode + "'");
}
return modeBits;
}
示例3: modeToMode
/**
* Copied from ContentResolver.java
*/
private static int modeToMode(String mode) {
int modeBits;
if ("r".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_ONLY;
} else if ("w".equals(mode) || "wt".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE;
} else if ("wa".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_APPEND;
} else if ("rw".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_WRITE
| ParcelFileDescriptor.MODE_CREATE;
} else if ("rwt".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_WRITE
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE;
} else {
throw new IllegalArgumentException("Invalid mode: " + mode);
}
return modeBits;
}
示例4: modeToMode
static public int modeToMode(Uri uri, String mode) throws FileNotFoundException {
int modeBits;
if ("r".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_ONLY;
} else if ("w".equals(mode) || "wt".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE;
} else if ("wa".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_WRITE_ONLY
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_APPEND;
} else if ("rw".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_WRITE
| ParcelFileDescriptor.MODE_CREATE;
} else if ("rwt".equals(mode)) {
modeBits = ParcelFileDescriptor.MODE_READ_WRITE
| ParcelFileDescriptor.MODE_CREATE
| ParcelFileDescriptor.MODE_TRUNCATE;
} else {
throw new FileNotFoundException("Bad mode for " + uri + ": "
+ mode);
}
return modeBits;
}