- [NSRunningApplication activateWithOptions：]不工作 [英] -[NSRunningApplication activateWithOptions:] not working

问题描述

我正在尝试创建一个程序，将某个应用程序（如果它启动）。这是我的代码：

I'm trying to create a program that will focus a certain application (if it is launched). Here is my code:

#import <Cocoa/Cocoa.h>
#import <stdio.h>

int main() {
  // activate Firefox
  NSArray *apps = [NSRunningApplication runningApplicationsWithBundleIdentifier: @"org.mozilla.firefox"];

  if ([apps count] == 0) {
    printf("no matching app\n");
    return 1;
  }

  if (![apps[0] activateWithOptions: NSApplicationActivateAllWindows]) {
    printf("failed to activate\n");
    return 1;
  }

  return 0;
}

当我运行这个，它打印无法激活，没有引起注意。

When I run this, it prints "failed to activate," and Firefox is not brought into focus. What am I doing wrong?

推荐答案

只需使用NSApplicationActivateIgnoringOtherApps修改器来激活。

Just use NSApplicationActivateIgnoringOtherApps modifier to activate. It's work ok.

另外，activateWithOptions：方法具有以下注释：

Additionally activateWithOptions: method has the following note:

如果应用程序已退出，或不是可以激活的
类型的应用程序，则此方法将返回NO。

This method will return NO if the application has quit, or is not a type of application than can be activated.

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