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为什么下面两项表格中的内容上传到手机上后，没有居中显示了,求指点。 - Ap...
为什么下面两项表格中的内容上传到手机上后，没有居中显示了,求指点。
表格布局宽度充满，里面3列宽度也要设置，建议：30%，40%，30%，就居中了。
如果想要左右留空，可以表格分5列，中间3格放按钮，宽度都是20%。
App Inventor 2 MultiImagePicker 拓展：实现图片/视频多选功能 - App Inve...
...左下角 Extension 导入拓展
第二步：设计界面
添加一个按钮和 MultiImagePicker 组件，再加一个 Label 用来显示选中的图片路径。
第三步：编写逻辑
多选示例（选择最多5张图片）：
当 Button1.被点击：
- 调用 MultiImagePicker1...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...
An operation on a socket could not be performed because the system lac...
...space(由于系统缓冲区空间不足，或者因为队列已满，不能执行套接字上的操作)An-operation-on-a-socket-could-not-be-performed-because-the-system-lacked-sufficient-buffer-space服务端程序崩溃重启，查看日志报错：An operation on a socket could not be performed b...