我很难让 MFMessageCompose
与Unity3D iOS Plugin一起使用。
我有一个警报窗口弹出并带有按钮,但是访问MFMessageComposer
时出现错误。似乎无法获得正确弹出窗口的方法。
这是我的 iOSBridge.h
(如果需要,可以链接文件):
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import <MessageUI/MessageUI.h>
@interface Delegate : NSObject <UINavigationControllerDelegate, MFMessageComposeViewControllerDelegate>
@end
还有我的iOSBridge.mm文件:
#import "iOSBridge.h"
@implementation Delegate
//Trying to still understand the meaning behind this line. Why???
-(id)init
{
return self;
}
//RATE US Button Numbers
//Not entirely sure What I did here but it still bring it up. This section has nothing to do with SMS
-(void) alertView: (UIAlertView*)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
//Give back the number of the button
NSString *inStr = [NSString stringWithFormat:@"%d", (int)buttonIndex];
const char *cString = [inStr cStringUsingEncoding:NSASCIIStringEncoding];
UnitySendMessage("Popup", "UserFeedBack", cString);
NSLog(@"%li", (long)buttonIndex);
} // RATE US button number end
-(void)SMS:(id)sender{
MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];
[controller setMessageComposeDelegate:self];
if([MFMessageComposeViewController canSendText]){
[controller setRecipients:[NSArray arrayWithObjects:nil]];
[controller setBody:[NSString stringWithFormat:@"Text"]];
//WHYYY do you not work
//[self presentViewController:controller animated:YES];
Delegate *appDelegate = UIApplication.sharedApplication.delegate;
[appDelegate.window.rootViewController presentViewController:controller animated:YES completion:nil]
}
}
@end
static Delegate* delegateObject;
extern "C"
{
//A method for unity can run
void _AddNotification(const char* title,
const char* body,
const char* cancelLabel,
const char* firstLabel,
const char* secondLabel)
{
//Don't have a full grasp of this delegateObject thing yet.
if(delegateObject ==nil){
delegateObject = [[Delegate alloc]init];
}
//iOS Alert Pop up view RATE OUR GAME
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle: [NSString stringWithUTF8String:title]
message:[NSString stringWithUTF8String:body] delegate:delegateObject
cancelButtonTitle:[NSString stringWithUTF8String:cancelLabel]
otherButtonTitles:[NSString stringWithUTF8String:firstLabel],[NSString stringWithUTF8String:secondLabel], nil];
[alert show];
} //End of _AddNotification
//SMS Method for Unity to use
void _SMSGO(const char* Mbody){
MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];
if([MFMessageComposeViewController canSendText]){
NSString *s = [NSString stringWithFormat:@"%s", Mbody];
controller.body = s;
//Suppose to Brings up the SMS view not sure why it isnt working or how to make this work
//If this can work its major progress
[delegateObject presentViewController:controller animated:YES];
}
}
}
最佳答案
所以这些:
-(void) alertView: (UIAlertView*)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSString *inStr = [NSString stringWithFormat:@"%d", (int)buttonIndex];
const char *cString = [inStr cStringUsingEncoding:NSASCIIStringEncoding];
UnitySendMessage("Popup", "UserFeedBack", cString);
NSLog(@"%li", (long)buttonIndex);
}
-(void)SMS:(id)sender{
MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];
[controller setMessageComposeDelegate:self];
if([MFMessageComposeViewController canSendText]){
[controller setRecipients:[NSArray arrayWithObjects:nil]];
[controller setBody:[NSString stringWithFormat:@"Text"]];
//WHYYY do you not work
//[self presentViewController:controller animated:YES];
Delegate *appDelegate = UIApplication.sharedApplication.delegate;
[appDelegate.window.rootViewController presentViewController:controller animated:YES completion:nil]
}
}
实际上,您的网桥根本无法访问代码块。因此,在此一无所获。
- (id) init
是该类的初始化程序。因此,为了从其他任何文件访问该文件中的任何文件,您必须先对其进行init
编码。考虑这一点的更简单方法是:extern.c
是一个单独的文件。static Delegate *delObj;
extern "C"
{
void _callMain (const char *hello) {
/**
* delObj is a static so it "Will be once it is" so it will be
* in memory (mallocated) the moment you tell it to be something.
*/
if (!delObj) {
在这种情况下,我们希望该静态对象成为Delegate的实例(这不是将类设置为一个特别好的名称,这会引起很多混乱)。我们通过调用
init
来“启动”或初始化该类,并告诉它这是我们需要的对象,将其放在堆 read this上。 delObj = [[Delegate alloc] init];
}
// Now we can call the function in the next file
[delObj helloWorld];
}
Delegate.m
-将此视为另一个文件。您可以从extern.c
访问此文件,因为(实际上)它只是包含在同一文件中。但这完全是一个单独的实体。您必须从extern.c
访问此“文件”@implementation Delegate
// This is the function we call with [[Delegate alloc] init];
-(id) init {
// It simply returns itself - saying hey this is the object memory chunk in the heap you want to talk to.
return self;
}
// This is the function we call with [delObj helloWorld];
- (void) helloWorld {
NSLog("Hello World"); // This will show up in your console.
}
因此,上面的代码有两个函数,一个说“这是您要寻找的内存对象”,另一个说“我是一个函数,让我们执行一些事情”。
现在,所有布置都没有,您不会打电话:
-(void) alertView: (UIAlertView*)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
或
-(void)SMS:(id)sender{
通过您的
extern "C"
。 _AddNotification
起作用的原因是因为您在那里有代码调用UIAlertView
,之后来确保您的delegateObject
在内存中。在_SMSGO
函数中,您没有将对象放入内存。因此,当您在delegateObject
中调用[delegateObject presentViewController:controller animated:YES];
时,它会说:“哦,我知道delegateObject
是什么,但是它什么都没有。实际上,它没有执行任何内容的内存!”这就是为什么您可能没有任何错误或异常的原因。该代码知道有一个静态对象,但尚未将其设置为任何对象。解决方案:
首先,除非您确实想要发送某些内容,否则void方法不需要
:(id)sender
就是更多的IBAction
东西-因此,请将-(void)SMS:(id)sender{
更改为- (void) SMS {
(也要留出漂亮的间距。这对眼睛来说更好)。其次,将
SMS
中的所有内容交换为:- (void) SMS {
MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];
[controller setMessageComposeDelegate:self];
if([MFMessageComposeViewController canSendText]){
[controller setRecipients:[NSArray arrayWithObjects:nil]];
[controller setBody:[NSString stringWithFormat:@"Text"]];
// We now know why we work!
[self presentViewController:controller animated:YES];
}
}
可是等等!并且不要复制粘贴。确保了解您编写的每一行代码。
这行将对象分配到内存中,在本例中为
MFMessageComposeViewController
对象。然后初始化它。MFMessageComposeViewController *controller = [[MFMessageComposeViewController alloc] init];
这行代码设置了我们刚创建的对象的代表(
controller
)。但是为什么可以做到这一点?因为我们在MFMessageComposeViewControllerDelegate
文件中设置了iOSBridge.h
。这告诉.mm
文件中的所有内容“嘿,如果我们碰巧在某个地方有一个MFMessage
对象,则可以根据需要访问委托属性。”[controller setMessageComposeDelegate:self];
if ( [MFMessageComposeViewController canSendText] )
是人类可读的。与
[controller setRecipients:[NSArray arrayWithObjects:nil]];
和[controller setBody:[NSString stringWithFormat:@"Text"]];
相同但是现在
[self presentViewController:controller animated:YES];
是我们需要研究的地方。因此,在Unity中,他们说:“嘿,我们不需要处理每个可能调用的本机函数”,因此他们为您创建了对
extern
功能的访问。这使您可以从UnityScript方面与Objective-C进行对话。 Objective-C只是C的超集,因此是共同点。此处的所有内容仅应调用Delegate
中的函数。上面的示例在伪造的extern.c
代码块中。唯一要做的就是创建delegateObject
并调用一个函数。现在进行下一步。用以下命令交换_SMSGO
中的所有内容:void _SMSGO (const char *mBody) { // I prefer char *name vs char* name but it doesn't matter
[delegateObject SMS]; // add mBody as a parameter when you're ready. Handle the stringWithUTF8String on the Objective-C side of things. Yes, this is not the Obj-C side, this is the C side.
}
“但是等等……您只是
delegateObject
才是必需品”-是的。在您的extern "C"
部分中创建另一个方法称为_init
,并在 class 的Awake
或Start
函数中从Unity运行一次 。这将设置您的静态对象一次,再也不会对其造成混乱。只需使其:void _init() {
if ( !delegateObject ) {
delegateObject = [[Delegate alloc] init];
}
}
!delegateObject
与delegateObject == nil
相同,但代码更简洁。双方都说“我们不知道dat是什么”-好的,现在我们有了delegateObject
,我们可以随意使用delegateObject
进行下一次调用。现在,当您调用
[delegateObject SMS]
时,它将转到- (void) SMS
。而且,当您调用self presentViewController
时,它会知道self是指 iOS本机对象。如果您在presentViewController
中调用extern "C"
,它说:“...嗯,嗯。我还没有得到最模糊的含义。”-因此,我们将extern "C"
部分中的全部用作Delegate
对象的交叉点。那就是extern
东西的全部目的,只是为了调用Obj-C东西中的东西。希望这可以帮助。
关于ios - 使用Unity3D在iPhone上弹出SMS ViewController,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/36024759/