Before using course_main you should initialize it: course_main = (LinearLayout) findViewById(R.id.course_main);
On Mon, Jul 12, 2010 at 11:13 PM, theresia freska <theresia.fre...@gmail.com > wrote: > 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<android-beginners%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-beginners?hl=en > -- YuviDroid http://android.yuvalsharon.net -- 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
