不重新上架更新 App Icon 图标
看到节假日手机里的App Icon没有更新情况下自动换了
版本要求：iOS 10.3
一、配置
Info.plist内添加Icon files (iOS 5)，默认带两个key，这个不用管。按照下面格式添加新的key
<key>CFBundleIcons</key>
<dict>
<!-- 这一部分是用户需要加进去的 -->
<key>CFBundleAlternateIcons</key>
<dict>
<key>changeIcon1</key>
<dict>
<key>CFBundleIconFiles</key>
<array>
<string>tianxingjue</string>
</array>
</dict>
</dict>
<!-- changeIcon1可自定义，调用时候用changeIcon1，可以有多个changeIcon2、changeIcon3等
tianxingjue是备用icon图片名称，图片放在工程里--------- -->
<key>CFBundlePrimaryIcon</key>
<dict>
<key>CFBundleIconName</key>
<string></string>
<key>CFBundleIconFiles</key>
<array>
<string></string>
</array>
<key>UIPrerenderedIcon</key>
<false/>
</dict>
<key>UINewsstandIcon</key>
<dict>
<key>CFBundleIconFiles</key>
<array>
<string></string>
</array>
<key>UINewsstandBindingType</key>
<string>UINewsstandBindingTypeMagazine</string>
<key>UINewsstandBindingEdge</key>
<string>UINewsstandBindingEdgeLeft</string>
</dict>
</dict>
二、代码部分
Swift
if UIApplication.shared.supportsAlternateIcons {
UIApplication.shared.setAlternateIconName(iconName) { error in
if error != nil {
print("\(#fileID) line:\(#line) \(#function) 换icon发生错误，error: \(error!)")
} else {
print("\(#fileID) line:\(#line) \(#function) 换icon完成.")
}
}
}
OC
if ([[UIApplication sharedApplication] supportsAlternateIcons]) {
[[UIApplication sharedApplication] setAlternateIconName:iconName completionHandler:^(NSError * _Nullable error) {
if (error != nil) {
NSLog(@"%s line:%d 更新App图标失败，错误：%@", __func__, __LINE__, error);
} else {
NSLog(@"%s line:%d 更新App图标成功。", __func__, __LINE__);
}
}];
}
上面两段代码都会弹出更换icon的提示框，体验很不好。
更换icon提示框
下一步是把这个提示框想办法干掉
尝试Swift方式取消弹窗无果。
最后用oc代码替换icon得以解决提示框问题：
+ (void)exchangeAlternateIcon:(NSString * _Nullable)iconName {
NSString *selectorStr = @"_set";
selectorStr = [selectorStr stringByAppendingString:@"Alternate"];
selectorStr = [selectorStr stringByAppendingString:@"IconName:"];
selectorStr = [selectorStr stringByAppendingString:@"completionHandler:"];
SEL selector = NSSelectorFromString(selectorStr);
IMP imp = [[UIApplication sharedApplication] methodForSelector:selector];
void (*setIcon)(id, SEL, NSString *, id) = (void *)imp;
if (setIcon) {
setIcon([UIApplication sharedApplication], selector, iconName, ^(NSError *error) {
if (error != nil) {
NSLog(@"%s line:%d 更改App图标发生错误：%@", __func__, __LINE__, error);
} else {
NSLog(@"%s line:%d 更改App图标成功。", __func__, __LINE__);
}
});
}
}
Swift内调用的话需要桥接一下。
Note:
unsafeBitCast：转换时会忽略数据类型的强制转换，不会因为数据类型的变化而改变原来的内存数据
