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I added a function which is "if click the element of list, then execute the browser app". Press home button and execute another app while running the browser app. And the problem is when return to my app, the error "unable to start activity componentinfo" is occurred.

I'm sorry my english is weak.

My app is using ViewPager and Fragment.

The problem step.

  1. My app: Click the element of list

    Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));

    startActivity(intent);

  2. Browser: Press Home button
  3. Home: Execute another app
  4. Another app: Press Home button
  5. Home: Execute My app
  6. the error is occurred

Log

03-25 22:26:17.261: E/AndroidRuntime(28894): FATAL EXCEPTION: main
03-25 22:26:17.261: E/AndroidRuntime(28894): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.temp.example/com.temp.example.Main}: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.temp.example.Temp: make sure class name exists, is public, and has an empty constructor that is public
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2135)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.ActivityThread.access$700(ActivityThread.java:143)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1241)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.os.Handler.dispatchMessage(Handler.java:99)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.os.Looper.loop(Looper.java:137)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.ActivityThread.main(ActivityThread.java:4950)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at java.lang.reflect.Method.invokeNative(Native Method)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at java.lang.reflect.Method.invoke(Method.java:511)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:997)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:764)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at dalvik.system.NativeStart.main(Native Method)
03-25 22:26:17.261: E/AndroidRuntime(28894): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.temp.example.Temp: make sure class name exists, is public, and has an empty constructor that is public
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.support.v4.app.Fragment.instantiate(Fragment.java:413)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.support.v4.app.FragmentState.instantiate(Fragment.java:97)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.support.v4.app.FragmentManagerImpl.restoreAllState(FragmentManager.java:1790)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.support.v4.app.FragmentActivity.onCreate(FragmentActivity.java:213)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at com.temp.example.Main.onCreate(Main.java:58)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.Activity.performCreate(Activity.java:5177)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2074)
03-25 22:26:17.261: E/AndroidRuntime(28894):    ... 11 more
03-25 22:26:17.261: E/AndroidRuntime(28894): Caused by: java.lang.InstantiationException: can't instantiate class com.temp.example.Temp; no empty constructor
03-25 22:26:17.261: E/AndroidRuntime(28894):    at java.lang.Class.newInstanceImpl(Native Method)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at java.lang.Class.newInstance(Class.java:1319)
03-25 22:26:17.261: E/AndroidRuntime(28894):    at android.support.v4.app.Fragment.instantiate(Fragment.java:402)
03-25 22:26:17.261: E/AndroidRuntime(28894):    ... 18 more

If you know the solution, please let me know.

Thanks for your reading.

user3242589
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1 Answers1

1

Visit that Tutorial How To Open An URL In Android’s Web Browser

or follow that Question How can I open a URL in Android's web browser from my application?

Community
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Engr Waseem Arain
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  • Thanks for your comment. I can open browser. My problem is when the browser is running, execute another app and then re-execute to my app, the error is occurred. – user3242589 Mar 25 '14 at 13:33