Easy fix that worked for me (after trying some of these other suggestion). My logcat was sitting blank in a separate window (on my second screen). Just had to drag the Logcat tab back to it's original place in the debug panel next to the Debugger and Console tabs, and VOILA... it began immediately updating and showing all processes verbose. So (If your logcat is anywhere outside of the debugger panel (i.e. the logcat tab isn't sitting nested alongside the debugger and console tab) then it won't receive updates and will sit there blankly. Don't know if this is an issue with older versions of Android Studio. But again, easy to try and if it works... it works!!

在我的例子中，我从右边的小下拉列表中删除了“image”。在那之后一切都很好。这是因为它将在日志中搜索搜索框中的关键字，因此如果没有找到任何匹配项，它将返回空白

Easy fix that worked for me (after trying some of these other suggestion). My logcat was sitting blank in a separate window (on my second screen). Just had to drag the Logcat tab back to it's original place in the debug panel next to the Debugger and Console tabs, and VOILA... it began immediately updating and showing all processes verbose. So (If your logcat is anywhere outside of the debugger panel (i.e. the logcat tab isn't sitting nested alongside the debugger and console tab) then it won't receive updates and will sit there blankly. Don't know if this is an issue with older versions of Android Studio. But again, easy to try and if it works... it works!!

我经常陷入这种状态。Logcat为空。调试工作，我可以击中断点。没有设置过滤器。日志级别为“Verbose”。我通过以下反复循环来修复它:

重新启动logcat(参见上面Zatziky的回答) 将日志级别更改为Debug(或其他级别)，然后返回Verbose。 拔下并插回设备 运行adb kill-server && adb start-server 关闭Android Studio并在命令行上启动ddms。 重启Android Studio

最后，如果一切都失败了，重新启动计算机。

这个问题是间歇性的，我认为Android Studio就是有bug。

要运行Logcat，请重新启动Logcat，然后打开DDMS(要打开它，请单击Android DDMS右上角的Android图标)。设置“日志级别=调试”。然后运行你的应用。

在Android Studio 0.8.9中，我打开Android设备监视器，从设备列表中选择模拟器，并在LogCat选项卡中获得输出。

之后，我回到Android Studio的主视图，在Android DDMS选项卡的右侧选择Restore Logcat视图，它就在那里!

如果这不起作用，你可以在Android设备监视器中看到你的日志猫，就像我在第一句话中解释的那样。