摘要： Android利用ActivityGroup加载子Activity，子Activity调用对话框，弹出：ERROR/AndroidRuntime(10104): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@45a58ee0 is not valid; is your activity running?原因分析：因为new对话框的时候，参数content 指定成了 阅读全文