[英]How to handle push notifications if the application is already running?
如果應用程序已經在運行,我們如何處理推送通知? 我想在應用程序正在運行時顯示警報(而不是推送通知警報)。 僅當應用程序未運行時,才顯示推送通知警報。
另外,如果我將有效載荷發送到APN,如何使用取消按鈕創建警報?
您可以實現application:didReceiveRemoteNotification:
這是一個可能的示例代碼:
- (void)application:(UIApplication *)application
didReceiveRemoteNotification:(NSDictionary *)userInfo
{
NSString *message = nil;
id alert = [userInfo objectForKey:@"alert"];
if ([alert isKindOfClass:[NSString class]]) {
message = alert;
} else if ([alert isKindOfClass:[NSDictionary class]]) {
message = [alert objectForKey:@"body"];
}
if (alert) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Title"
message:@"AThe message." delegate:self
cancelButtonTitle:@"button 1"
otherButtonTitles:@"button", nil];
[alertView show];
[alertView release];
}
您可以檢查UIApplication的狀態。 像這樣檢查一下
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
UIApplicationState state = [application applicationState];
if (state == UIApplicationStateActive)
{
UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:@"xxx" message:yourMessage delegate:self cancelButtonTitle:@"Done" otherButtonTitles: @"Anzeigen", nil] autorelease];
[alert setTag: 2];
[alert show];
}
else {
// Push Notification received in the background
}
}
“ alert”鍵不會直接出現在userInfo詞典下,您需要獲取另一個名為“ aps”的詞典,然后從“ aps”詞典中獲取“ alert”或“ body”。
迭代3級負載
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
for (id key in userInfo) {
NSLog(@"key: %@, value: %@", key, [userInfo objectForKey:key]);
NSString *message = nil;
NSDictionary *aps = [NSDictionary dictionaryWithDictionary:(NSDictionary *) [userInfo objectForKey:key] ];
for (id key1 in aps){
NSLog(@"key1: %@", key1);
id alert = [aps objectForKey:key1];
if ([alert isKindOfClass:[NSDictionary class]]) {
message = [alert objectForKey:@"body"];
NSLog(@"body: %@, value: %@", key1, message);
message = [alert objectForKey:@"loc-args"];
NSLog(@"loc-args: %@, value: %@", key1, message);
NSArray *args = (NSArray *) [alert objectForKey:@"loc-args"] ;
for (id key2 in args){
NSLog(@"key2: %@, value: ", key2);
}
message = [alert objectForKey:@"action-loc-key"];
NSLog(@"action-loc-key: %@, value: %@", key1, message);
}
else if ([alert isKindOfClass:[NSArray class]]) {
for (id key2 in key1){
NSLog(@"key2: %@, value: %@", key2, [key1 objectForKey:key2]);
}
}
else if([key1 isKindOfClass:[NSString class]]) {
message = [aps objectForKey:key1];
NSLog(@"key1: %@, value: %@", key1, message);
}
}
}
}
結果是:
2012-01-27 20:38:09.599 SPush[4181:707] key: aps, value: {
alert = {
"action-loc-key" = Open;
body = test;
"loc-args" = (
1000,
2000
);
};
badge = 0;
"content-available" = 10;
sound = default;
}
2012-01-27 20:38:13.133 SPush[4181:707] key1: alert
2012-01-27 20:38:13.134 SPush[4181:707] body: alert, value: test
2012-01-27 20:38:13.137 SPush[4181:707] loc-args: alert, value: (
1000,
2000
)
2012-01-27 20:38:13.138 SPush[4181:707] key2: 1000, value:
2012-01-27 20:38:13.139 SPush[4181:707] key2: 2000, value:
2012-01-27 20:38:13.140 SPush[4181:707] action-loc-key: alert, value: Open
2012-01-27 20:38:13.141 SPush[4181:707] key1: sound
2012-01-27 20:38:13.143 SPush[4181:707] key1: sound, value: default
2012-01-27 20:38:13.144 SPush[4181:707] key1: badge
2012-01-27 20:38:13.145 SPush[4181:707] key1: badge, value: 0
2012-01-27 20:38:13.146 SPush[4181:707] key1: content-available
2012-01-27 20:38:13.147 SPush[4181:707] key1: content-available, value: 10
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