java.lang.Object
- com.google.android.exoplayer2.upstream.BaseDataSource
- - com.google.android.exoplayer2.upstream.RawResourceDataSource

All Implemented Interfaces:

DataReader, DataSource
```
public final class RawResourceDataSource
extends BaseDataSource
```
A DataSource for reading a raw resource inside the APK.
URIs supported by this source are of one of the forms:
- rawresource:///id, where id is the integer identifier of a raw resource.
- android.resource:///id, where id is the integer identifier of a raw resource.
- android.resource://[package]/[type/]name, where package is the name of the package in which the resource is located, type is the resource type and name is the resource name. The package and the type are optional. Their default value is the package of this application and "raw", respectively. Using the two other forms is more efficient.
buildRawResourceUri(int) can be used to build supported Uris.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class RawResourceDataSource.RawResourceDataSourceException
Thrown when an IOException is encountered reading from a raw resource.
- Nested classes/interfaces inherited from interface com.google.android.exoplayer2.upstream.DataSource
  DataSource.Factory

Field Summary

Fields
Modifier and Type Field Description

static String RAW_RESOURCE_SCHEME
The scheme part of a raw resource URI.

Constructor Summary

Constructors
Constructor Description

RawResourceDataSource(Context context)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Uri`	`buildRawResourceUri(int rawResourceId)`	Builds a `Uri` for the specified raw resource identifier.
`void`	`close()`	Closes the source.
`Uri`	`getUri()`	When the source is open, returns the `Uri` from which data is being read.
`long`	`open(DataSpec dataSpec)`	Opens the source to read the specified data.
`int`	`read(byte[] buffer, int offset, int length)`	Reads up to `length` bytes of data from the input.

Methods inherited from class com.google.android.exoplayer2.upstream.BaseDataSource
addTransferListener, bytesTransferred, transferEnded, transferInitializing, transferStarted

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.android.exoplayer2.upstream.DataSource
getResponseHeaders

- Field Detail
  - RAW_RESOURCE_SCHEME
```
public static final String RAW_RESOURCE_SCHEME
```
    The scheme part of a raw resource URI.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - RawResourceDataSource
```
public RawResourceDataSource(Context context)
```
    Parameters:
    
    context - A context.
- Method Detail
  - buildRawResourceUri
```
public static Uri buildRawResourceUri(int rawResourceId)
```
    Builds a Uri for the specified raw resource identifier.
    
    Parameters:
    
    rawResourceId - A raw resource identifier (i.e. a constant defined in R.raw).
    
    Returns:
    
    The corresponding Uri.
  - open
```
public long open(DataSpec dataSpec)
          throws RawResourceDataSource.RawResourceDataSourceException
```
    Description copied from interface: DataSource
    Opens the source to read the specified data. If an IOException is thrown, callers must still call DataSource.close() to ensure that any partial effects of the invocation are cleaned up.
    The following edge case behaviors apply:
    
    If the requested position is within the resource, but the requested length extends beyond the end of the resource, then DataSource.open(com.google.android.exoplayer2.upstream.DataSpec) will succeed and data from the requested position to the end of the resource will be made available through DataReader.read(byte[], int, int).
    If the requested position is equal to the length of the resource, then DataSource.open(com.google.android.exoplayer2.upstream.DataSpec) will succeed, and DataReader.read(byte[], int, int) will immediately return C.RESULT_END_OF_INPUT.
    If the requested position is greater than the length of the resource, then DataSource.open(com.google.android.exoplayer2.upstream.DataSpec) will throw an IOException for which DataSourceException.isCausedByPositionOutOfRange(java.io.IOException) will be true.
    Parameters:
    
    dataSpec - Defines the data to be read.
    
    Returns:
    
    The number of bytes that can be read from the opened source. For unbounded requests (i.e., requests where DataSpec.length equals C.LENGTH_UNSET) this value is the resolved length of the request, or C.LENGTH_UNSET if the length is still unresolved. For all other requests, the value returned will be equal to the request's DataSpec.length.
    
    Throws:
    
    RawResourceDataSource.RawResourceDataSourceException
  - read
```
public int read(byte[] buffer,
                int offset,
                int length)
         throws RawResourceDataSource.RawResourceDataSourceException
```
    Description copied from interface: DataReader
    
    Reads up to length bytes of data from the input.
    If readLength is zero then 0 is returned. Otherwise, if no data is available because the end of the opened range has been reached, then C.RESULT_END_OF_INPUT is returned. Otherwise, the call will block until at least one byte of data has been read and the number of bytes read is returned.
    
    Parameters:
    
    buffer - A target array into which data should be written.
    
    offset - The offset into the target array at which to write.
    
    length - The maximum number of bytes to read from the input.
    
    Returns:
    
    The number of bytes read, or C.RESULT_END_OF_INPUT if the input has ended. This may be less than length because the end of the input (or available data) was reached, the method was interrupted, or the operation was aborted early for another reason.
    
    Throws:
    
    RawResourceDataSource.RawResourceDataSourceException
  - getUri
```
@Nullable
public Uri getUri()
```
    Description copied from interface: DataSource
    
    When the source is open, returns the Uri from which data is being read. The returned Uri will be identical to the one passed DataSource.open(DataSpec) in the DataSpec unless redirection has occurred. If redirection has occurred, the Uri after redirection is returned.
    
    Returns:
    
    The Uri from which data is being read, or null if the source is not open.
  - close
```
public void close()
           throws RawResourceDataSource.RawResourceDataSourceException
```
    Description copied from interface: DataSource
    
    Closes the source. This method must be called even if the corresponding call to DataSource.open(DataSpec) threw an IOException.
    
    Throws:
    
    RawResourceDataSource.RawResourceDataSourceException

Class RawResourceDataSource

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.upstream.DataSource

Field Summary

Constructor Summary

Method Summary

Methods inherited from class com.google.android.exoplayer2.upstream.BaseDataSource

Methods inherited from class java.lang.Object

Methods inherited from interface com.google.android.exoplayer2.upstream.DataSource

Field Detail

RAW_RESOURCE_SCHEME

Constructor Detail

RawResourceDataSource

Method Detail

buildRawResourceUri

open

read

getUri

close