FBSDKLoginButton - 文件 - Meta for Developers

FBSDKLoginButton

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A button that initiates a log in or log out flow upon tapping.

Discussion:

FBSDKLoginButton works with [FBSDKAccessToken currentAccessToken] to determine what to display, and automatically starts authentication when tapped (i.e., you do not need to manually subscribe action targets). Like FBSDKLoginManager, you should make sure your app delegate is connected to FBSDKApplicationDelegate in order for the button's delegate to receive messages. FBSDKLoginButton has a fixed height of @c 30 pixels, but you may change the width. initWithFrame:CGRectZero will size the button to its minimum frame.

Superclass:	`FBSDKButton`
Declared in:	`FBSDKLoginButton.h`

資產

defaultAudience

The default audience to use, if publish permissions are requested at login time.

@property (assign,
    nonatomic) FBSDKDefaultAudience defaultAudience;

宣告於： FBSDKLoginButton.h

delegate

Gets or sets the delegate.

@property (weak,
    nonatomic) IBOutlet id<FBSDKLoginButtonDelegate> delegate;

宣告於： FBSDKLoginButton.h

loginBehavior

Gets or sets the login behavior to use

@property (assign,
    nonatomic) FBSDKLoginBehavior loginBehavior;

宣告於： FBSDKLoginButton.h

publishPermissions

The publish permissions to request.

@property (copy,
    nonatomic) NSArray *publishPermissions;

Discussion:

Use defaultAudience to specify the default audience to publish to. Note this is converted to NSSet and is only an NSArray for the convenience of literal syntax.

宣告於： FBSDKLoginButton.h

readPermissions

The read permissions to request.

@property (copy,
    nonatomic) NSArray *readPermissions;

Discussion:

Note, that if read permissions are specified, then publish permissions should not be specified. This is converted to NSSet and is only an NSArray for the convenience of literal syntax.

宣告於： FBSDKLoginButton.h

tooltipBehavior

Gets or sets the desired tooltip behavior.

@property (assign,
    nonatomic) FBSDKLoginButtonTooltipBehavior tooltipBehavior;

宣告於： FBSDKLoginButton.h

tooltipColorStyle

Gets or sets the desired tooltip color style.

@property (assign,
    nonatomic) FBSDKTooltipColorStyle tooltipColorStyle;

宣告於： FBSDKLoginButton.h

Typedefs

NS_ENUM

Indicates the desired login tooltip behavior.

typedef NS_ENUM(NSUInteger, FBSDKLoginButtonTooltipBehavior) { 
    /*! The default behavior. The tooltip will only be displayed if
        */
    FBSDKLoginButtonTooltipBehaviorAutomatic = 0, /*! Force display of the tooltip (typically for UI testing) 
        */
    FBSDKLoginButtonTooltipBehaviorForceDisplay = 1, /*! Force disable. In this case you can still exert more refined
        */
    FBSDKLoginButtonTooltipBehaviorDisable = 2 
};

常數	簡介
`FBSDKLoginButtonTooltipBehaviorAutomatic`	The default behavior. The tooltip will only be displayed if the app is eligible (determined by possible server round trip)
`FBSDKLoginButtonTooltipBehaviorForceDisplay`	Force display of the tooltip (typically for UI testing)
`FBSDKLoginButtonTooltipBehaviorDisable`	Force disable. In this case you can still exert more refined control by manually constructing a `FBSDKLoginTooltipView` instance.

Discussion:

FBSDKLoginButtonTooltipBehavior)

宣告於： FBSDKLoginButton.h

NS_ENUM(NSUInteger,

Indicates the desired login tooltip behavior.

typedef NS_ENUM(NSUInteger, FBSDKLoginButtonTooltipBehavior) { 
    /*! The default behavior. The tooltip will only be displayed if
        */
    FBSDKLoginButtonTooltipBehaviorAutomatic = 0, /*! Force display of the tooltip (typically for UI testing) 
        */
    FBSDKLoginButtonTooltipBehaviorForceDisplay = 1, /*! Force disable. In this case you can still exert more refined
        */
    FBSDKLoginButtonTooltipBehaviorDisable = 2 
};

常數	簡介
`FBSDKLoginButtonTooltipBehaviorAutomatic`	The default behavior. The tooltip will only be displayed if the app is eligible (determined by possible server round trip)
`FBSDKLoginButtonTooltipBehaviorForceDisplay`	Force display of the tooltip (typically for UI testing)
`FBSDKLoginButtonTooltipBehaviorDisable`	Force disable. In this case you can still exert more refined control by manually constructing a `FBSDKLoginTooltipView` instance.

Discussion:

FBSDKLoginButtonTooltipBehavior)

宣告於： FBSDKLoginButton.h