Unable to add window -- token null is not for an application
2016-08-01 20:18
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在创建一个Dialog时，发生的错误：
Unable to add window -- token null is not for an application
解决方案：
方案1： dialog的设置window属性
dialog.getWindow().setType((WindowManager.LayoutParams.TYPE_SYSTEM_ALERT));
同时需要在menifest文件中 获得如下权限：
Android.permission.SYSTEM_ALERT_WINDOW
这种情况是利用后台的service，并不是通过activity 来启动一个dialog，通过上述代码可以启动一个系统级别的dialog。
Unable to add window -- token null is not for an application
解决方案：
方案1： dialog的设置window属性
dialog.getWindow().setType((WindowManager.LayoutParams.TYPE_SYSTEM_ALERT));
同时需要在menifest文件中 获得如下权限：
Android.permission.SYSTEM_ALERT_WINDOW
这种情况是利用后台的service，并不是通过activity 来启动一个dialog，通过上述代码可以启动一个系统级别的dialog。
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