[android-developers] Re: Error when switch activity at the second time

Hi,

Main,java has a start button that run startActivity(new Intent(main.this, CobaGesture.class)); 
CobaGesture.java has a back button that run finish(); 

startActivity(new Intent(CobaGesture.this, main.class)); // No need of this, it is creating one more instance of main Activity in stack.

So remove this line.

other hand check out either are you doing some on other operation on button click listener or only calling CobaGesture Activity?

if you are calling only CobaGestureActivity then it will work fine.

Regards

Imran Ali

On Friday, June 1, 2012 2:03:29 PM UTC+5:30, Yefta Meliala wrote:

Hi, i am developing an android application and i need help to solve my
problem on my application.
My application is consist of 2 activity,  main.java and
CobaGesture.java.

Main,java has a start button that run startActivity(new
Intent(main.this, CobaGesture.class));
CobaGesture.java has a back button that run finish();
startActivity(new Intent(CobaGesture.this, main.class));

When the app running, i press the start button the activity changed to
CobaGesture, and when i press back button in CobaGesture the activity
back to main. But, when i press start again the app is forced close
and here's logcat of the error:


//when i press the start button for the second time
06-01 14:59:51.836: INFO/InputDispatcher(65): Application is not
responding: Window{4079d900 coba.gesture/coba.gesture.main
paused=false}.  5006.2ms since event, 5005.3ms since wait started
06-01 14:59:51.836: INFO/WindowManager(65): Input event dispatching
timed out sending to coba.gesture/coba.gesture.main
06-01 14:59:51.926: INFO/Process(65): Sending signal. PID: 2730 SIG: 3
06-01 14:59:51.926: INFO/dalvikvm(2730): threadid=4: reacting to
signal 3
06-01 14:59:51.957: WARN/ActivityManager(65): Activity destroy timeout
for HistoryRecord{4068bea0 coba.gesture/.CobaGesture}
06-01 14:59:51.996: INFO/dalvikvm(2730): Wrote stack traces to '/data/
anr/traces.txt'
06-01 14:59:52.025: INFO/Process(65): Sending signal. PID: 65 SIG: 3
06-01 14:59:52.025: INFO/dalvikvm(65): threadid=4: reacting to signal
3
06-01 14:59:52.435: INFO/dalvikvm(65): Wrote stack traces to '/data/
anr/traces.txt'
06-01 14:59:52.435: INFO/Process(65): Sending signal. PID: 122 SIG: 3
06-01 14:59:52.435: INFO/dalvikvm(122): threadid=4: reacting to signal
3
06-01 14:59:52.556: INFO/dalvikvm(122): Wrote stack traces to '/data/
anr/traces.txt'
06-01 14:59:52.576: DEBUG/dalvikvm(65): GC_CONCURRENT freed 993K, 47%
free 4456K/8327K, external 2036K/2548K, paused 13ms+31ms
06-01 14:59:52.605: INFO/Process(65): Sending signal. PID: 125 SIG: 3
06-01 14:59:52.605: INFO/dalvikvm(125): threadid=4: reacting to signal
3
06-01 14:59:52.656: INFO/dalvikvm(125): Wrote stack traces to '/data/
anr/traces.txt'
06-01 14:59:53.676: DEBUG/dalvikvm(65): GC_EXPLICIT freed 231K, 46%
free 4535K/8327K, external 2036K/2548K, paused 257ms

//error log
06-01 14:59:54.406: ERROR/ActivityManager(65): ANR in coba.gesture
(coba.gesture/.main)
06-01 14:59:54.406: ERROR/ActivityManager(65): Reason:
keyDispatchingTimedOut
06-01 14:59:54.406: ERROR/ActivityManager(65): Load: 0.62 / 0.35 /
0.46
06-01 14:59:54.406: ERROR/ActivityManager(65): CPU usage from 8027ms
to -2ms ago:
06-01 14:59:54.406: ERROR/ActivityManager(65):   85% 2730/
coba.gesture: 78% user + 6.6% kernel / faults: 27 minor
06-01 14:59:54.406: ERROR/ActivityManager(65):   13% 65/system_server:
5.9% user + 7.2% kernel / faults: 1 minor 1 major
06-01 14:59:54.406: ERROR/ActivityManager(65):   0.2% 41/adbd: 0% user
+ 0.2% kernel / faults: 13 minor
06-01 14:59:54.406: ERROR/ActivityManager(65): 100% TOTAL: 84% user +
15% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65): CPU usage from 1849ms
to 2454ms later:
06-01 14:59:54.406: ERROR/ActivityManager(65):   72% 2730/
coba.gesture: 69% user + 3.3% kernel / faults: 4 minor
06-01 14:59:54.406: ERROR/ActivityManager(65):     72% 2826/Thread-10:
69% user + 3.3% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):     1.6% 2735/Compiler:
0% user + 1.6% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):   25% 65/system_server:
8.6% user + 17% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):     13% 99/
InputDispatcher: 6.8% user + 6.8% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):     10% 76/
SurfaceFlinger: 1.7% user + 8.6% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):     1.7% 65/
system_server: 1.7% user + 0% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):     1.7% 74/Binder
Thread #: 1.7% user + 0% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65):     1.7% 230/Binder
Thread #: 0% user + 1.7% kernel
06-01 14:59:54.406: ERROR/ActivityManager(65): 100% TOTAL: 78% user +
21% kernel

what is the meaning of the error? what caused the error?
thanks in advance.

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