在一个线程里new一个dialog所出现的错误

04-01 14:17:22.499: WARN/dalvikvm(5119): threadid=17: thread exiting with uncaught exception (group=0x2aac9a08)
04-01 14:17:22.499: ERROR/AndroidRuntime(5119): Uncaught handler: thread Thread-9 exiting due to uncaught exception
04-01 14:17:22.499: INFO/global(5119): Default buffer size used in BufferedWriter constructor. It would be better to be explicit if an 8k-char buffer is required.
04-01 14:17:22.519: INFO/global(5119): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
04-01 14:17:22.519: WARN/System.err(5119): java.io.FileNotFoundException: /data/logcat_1.txt
04-01 14:17:22.519: INFO/global(5119): Default buffer size used in BufferedWriter constructor. It would be better to be explicit if an 8k-char buffer is required.
04-01 14:17:22.549: INFO/global(5119): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required.
04-01 14:17:22.619: WARN/System.err(5119): java.io.FileNotFoundException: /data/logcat_1.txt
04-01 14:17:22.619: ERROR/AndroidRuntime(5119): java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at android.os.Handler.<init>(Handler.java:121)
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at android.app.Dialog.<init>(Dialog.java:104)
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at android.app.AlertDialog.<init>(AlertDialog.java:63)
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at android.app.AlertDialog.<init>(AlertDialog.java:59)
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at android.app.AlertDialog$Builder.create(AlertDialog.java:786)
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at android.app.AlertDialog$Builder.show(AlertDialog.java:801)
04-01 14:17:22.619: ERROR/AndroidRuntime(5119):     at com.**.**.**$2.run(UPhoneMark.java:62)

 

 

解决方法：在线程外创建一个公共的dialog，添加Context参数和所要显示的信息进行调用