android.content

Class ContextWrapper

java.lang.Object

android.content.Context

android.content.ContextWrapper

public class ContextWrapper
extends Context

Proxying implementation of Context that simply delegates all of its calls to another Context. Can be subclassed to modify behavior without changing the original Context.

Nested Class Summary

Nested classes/interfaces inherited from class android.content.Context

Context.BindServiceFlags

Field Summary

Fields inherited from class android.content.Context

BIND_ABOVE_CLIENT, BIND_ADJUST_WITH_ACTIVITY, BIND_ALLOW_OOM_MANAGEMENT, BIND_AUTO_CREATE, BIND_DEBUG_UNBIND, BIND_FOREGROUND_SERVICE, BIND_FOREGROUND_SERVICE_WHILE_AWAKE, BIND_IMPORTANT, BIND_NOT_FOREGROUND, BIND_NOT_VISIBLE, BIND_SHOWING_UI, BIND_TREAT_LIKE_ACTIVITY, BIND_VISIBLE, BIND_WAIVE_PRIORITY, MODE_APPEND, MODE_ENABLE_WRITE_AHEAD_LOGGING, MODE_MULTI_PROCESS, MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE

Constructor Summary

Constructors

Constructor and Description
ContextWrapper(Context base)

Method Summary

Modifier and Type	Method and Description
protected void	attachBaseContext(Context base) Set the base context for this ContextWrapper.
AssetManager	getAssets() Return an AssetManager instance for your application's package.
Context	getBaseContext()
File	getDatabasePath(String name) Returns the absolute path on the filesystem where a database created with #openOrCreateDatabase is stored.
File	getFilesDir() Returns the absolute path to the directory on the filesystem where files created with Context.openFileOutput(java.lang.String, int) are stored.
PackageManager	getPackageManager() Return PackageManager instance to find global package information.
String	getPackageName() Return the name of this application's package.
Resources	getResources() Return a Resources instance for your application's package.
FileOutputStream	openFileOutput(String name, int mode) Open a private file associated with this Context's application package for writing.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ContextWrapper

public ContextWrapper(Context base)

Method Detail

attachBaseContext

protected void attachBaseContext(Context base)

Set the base context for this ContextWrapper. All calls will then be delegated to the base context. Throws IllegalStateException if a base context has already been set.

Parameters:

base - The new base context for this wrapper.

getBaseContext

public Context getBaseContext()

Returns:

the base context as set by the constructor or setBaseContext

getAssets

public AssetManager getAssets()

Description copied from class: Context

Return an AssetManager instance for your application's package.

Specified by:

getAssets in class Context

getResources

public Resources getResources()

Description copied from class: Context

Return a Resources instance for your application's package.

Specified by:

getResources in class Context

getPackageManager

public PackageManager getPackageManager()

Description copied from class: Context

Return PackageManager instance to find global package information.

Specified by:

getPackageManager in class Context

getPackageName

public String getPackageName()

Description copied from class: Context

Return the name of this application's package.

Specified by:

getPackageName in class Context

openFileOutput

public FileOutputStream openFileOutput(String name,
                                       int mode)
                                throws FileNotFoundException

Description copied from class: Context

Open a private file associated with this Context's application package for writing. Creates the file if it doesn't already exist.

No permissions are required to invoke this method, since it uses internal storage.

Specified by:

openFileOutput in class Context

Parameters:

name - The name of the file to open; can not contain path separators.

mode - Operating mode. Use 0 or Context.MODE_PRIVATE for the default operation, Context.MODE_APPEND to append to an existing file, Context.MODE_WORLD_READABLE and Context.MODE_WORLD_WRITEABLE to control permissions.

Returns:

The resulting FileOutputStream.

Throws:

FileNotFoundException

See Also:

Context.MODE_APPEND, Context.MODE_PRIVATE, Context.MODE_WORLD_READABLE, Context.MODE_WORLD_WRITEABLE, #openFileInput, #fileList, #deleteFile, FileOutputStream(String)

getFilesDir

public File getFilesDir()

Description copied from class: Context

Returns the absolute path to the directory on the filesystem where files created with Context.openFileOutput(java.lang.String, int) are stored.

No permissions are required to read or write to the returned path, since this path is internal storage.

Specified by:

getFilesDir in class Context

Returns:

The path of the directory holding application files.

See Also:

Context.openFileOutput(java.lang.String, int), #getFileStreamPath, #getDir

getDatabasePath

public File getDatabasePath(String name)

Description copied from class: Context

Returns the absolute path on the filesystem where a database created with #openOrCreateDatabase is stored.

Specified by:

getDatabasePath in class Context

Parameters:

name - The name of the database for which you would like to get its path.

Returns:

An absolute path to the given database.

See Also:

#openOrCreateDatabase