Hello, I'm using Android API 8, AVD 2.2. I'm trying to add simple view programmatically, but everytime I try to run it in the simulator, the app crashes. It gives me error msg "the app xxx has stopped unexpectedly" with the "force close" button. When I comment this code, the app works fine. Can anyone give me a hint on where I code wrong? Thanks!
course.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/course_main" android:layout_width="wrap_content" android:layout_height="wrap_content"> </LinearLayout> Course.java public class Course extends Activity { LinearLayout course_main; public void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.course); TextView tv = new TextView(this); tv.setText("Hello"); course_main.addView(tv); } LogCat 07-12 20:24:07.966: WARN/ActivityManager(66): Launch timeout has expired, giving up wake lock! 07-12 20:24:13.836: DEBUG/dalvikvm(126): GC_EXPLICIT freed 816 objects / 43216 bytes in 264ms 07-12 20:28:28.046: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 07-12 20:36:19.847: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 07-12 20:49:45.127: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 07-12 20:54:45.137: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 07-12 20:58:31.656: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 07-12 20:58:31.876: INFO/ActivityManager(66): Displayed activity de.ifgi.lbs/.RoomFinder: 2073293 ms (total 2073293 ms) 07-12 20:58:32.326: INFO/ARMAssembler(66): generated scanline__00000077:03545404_00000004_00000000 [ 47 ipp] (67 ins) at [0x2e29b0:0x2e2abc] in 23259049 ns 07-12 20:58:32.486: INFO/ARMAssembler(66): generated scanline__00000177:03515104_00001001_00000000 [ 91 ipp] (114 ins) at [0x29dca8:0x29de70] in 5497314 ns 07-12 20:58:36.146: WARN/KeyCharacterMap(307): No keyboard for id 0 07-12 20:58:36.146: WARN/KeyCharacterMap(307): Using default keymap: / system/usr/keychars/qwerty.kcm.bin 07-12 20:58:41.166: INFO/ActivityManager(66): Starting activity: Intent { cmp=de.ifgi.lbs/.About } 07-12 20:58:42.466: DEBUG/dalvikvm(66): GC_FOR_MALLOC freed 11952 objects / 522544 bytes in 750ms 07-12 20:58:42.496: WARN/WindowManager(66): No window to dispatch pointer action 0 07-12 20:58:42.516: WARN/WindowManager(66): No window to dispatch pointer action 1 07-12 20:58:42.516: WARN/ActivityManager(66): Activity pause timeout for HistoryRecord{43f3ad48 de.ifgi.lbs/.RoomFinder} 07-12 20:58:44.766: INFO/ActivityManager(66): Displayed activity de.ifgi.lbs/.About: 2297 ms (total 2297 ms) 07-12 20:59:01.666: INFO/ActivityManager(66): Starting activity: Intent { cmp=de.ifgi.lbs/.Filter } 07-12 20:59:03.886: INFO/ActivityManager(66): Displayed activity de.ifgi.lbs/.Filter: 1713 ms (total 1713 ms) 07-12 20:59:33.776: INFO/ActivityManager(66): Starting activity: Intent { cmp=de.ifgi.lbs/.Course } 07-12 20:59:43.826: WARN/ActivityManager(66): Launch timeout has expired, giving up wake lock! 07-12 20:59:44.288: WARN/ActivityManager(66): Activity idle timeout for HistoryRecord{43f36248 de.ifgi.lbs/.Course} 07-12 20:59:45.146: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol PS. I'm sorry if this is a double posting. I accidentally push the "Enter" button before finish typing. -- You received this message because you are subscribed to the Google Groups "Android Beginners" group. NEW! Try asking and tagging your question on Stack Overflow at http://stackoverflow.com/questions/tagged/android To unsubscribe from this group, send email to android-beginners+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en