我收到以下错误:
10-24 13:31:14.252: E/AndroidRuntime(21983): FATAL EXCEPTION: main
10-24 13:31:14.252: E/AndroidRuntime(21983): java.lang.RuntimeException: Unable to start activity ComponentInfo{br.com.campusfqm.cfqm/br.com.campusfqm.cfqm.Launch}: android.os.NetworkOnMainThreadException
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1968)
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1993)
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.app.ActivityThread.access$600(ActivityThread.java:127)
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1159)
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.os.Handler.dispatchMessage(Handler.java:99)
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.os.Looper.loop(Looper.java:137)
10-24 13:31:14.252: E/AndroidRuntime(21983): at android.app.ActivityThread.main(ActivityThread.java:4507)
10-24 13:31:14.252: E/AndroidRuntime(21983): at java.lang.reflect.Method.invokeNative(Native Method)
10-24 13:31:14.252: E/AndroidRuntime(21983): at java.lang.reflect.Method.invoke(Method.java:511)
10-24 13:31:14.252: E/AndroidRuntime(21983): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
10-24 13:31:14.252: E/AndroidRuntime(21983): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
10-24 13:31:14.252: E/AndroidRuntime(21983): at dalvik.system.NativeStart.main(Native Method)
10-24 …我有一个AlertDialog,它有一个按钮,如果选中,将启动文件上传到远程服务器,如下所示:
builder.setMessage(text)
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
uploadFile();
}})
这很好用,唯一的问题是uploadFile()可能需要很长时间(30秒到2分钟).我想用一个进度对话框(甚至是一个不确定的对话框)替换AlertDialog,但是我看不到如何从另一个对话框启动一个对话框？
任何人都可以提供一些建议,我可以做到这一点.
谢谢,Jarabek