Reputation:
I have an app that allows the user to select from a list of RadioButtons and a DatePicker and displays output. I got the app running in an emulator, and when I test the RadioButtons, the app crashes and the emulator says the "unfortunately the app has stopped." I'm not sure why this is happening?
EDIT - STACK TRACE
StackTrace:
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: FATAL EXCEPTION: main
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: java.lang.IllegalStateException: Could not find a method onRadioButtonClicked(View) in the activity class edu.wmich.lab4jvandyk5713.MainActivity for onClick handler on view class android.widget.RadioButton with id 'radioButtonHoliday'
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.view.View$1.onClick(View.java:3586)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.view.View.performClick(View.java:4204)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.widget.CompoundButton.performClick(CompoundButton.java:100)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.view.View$PerformClick.run(View.java:17355)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:725)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:92)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.os.Looper.loop(Looper.java:137)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5041)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: Caused by: java.lang.NoSuchMethodException: onRadioButtonClicked [class android.view.View]
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at java.lang.Class.getConstructorOrMethod(Class.java:460)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at java.lang.Class.getMethod(Class.java:915)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.view.View$1.onClick(View.java:3579)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.view.View.performClick(View.java:4204)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.widget.CompoundButton.performClick(CompoundButton.java:100)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.view.View$PerformClick.run(View.java:17355)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:725)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:92)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.os.Looper.loop(Looper.java:137)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5041)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:511)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
12-01 00:30:39.490 2007-2007/edu.wmich.lab4jvandyk5713 E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)
EDIT 2 - XML in question
<?xml version="1.0" encoding="utf-8"?>
<TableRow>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/imageViewUltimateParty"
android:contentDescription="@string/imgViewUltimateParty"
android:longClickable="true"
android:paddingBottom="16dp"
android:paddingRight="16dp"/>
<TableRow>
<TextView
android:layout_width="500dp"
android:layout_height="wrap_content"
android:text="@string/txtViewAppDescription"
android:id="@+id/textViewAppDescription"
android:contentDescription="@string/txtViewAppDescription"
android:contextClickable="false" />
</TableRow>
</TableRow>
<TableRow>
<RadioGroup
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="@string/rdoGroupParties"
android:id="@+id/radioGroupParties">
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/rdoButtonPajama"
android:id="@+id/radioButtonPajama"
android:contentDescription="@string/rdoButtonPajama"
android:onClick="onRadioButtonClicked"
android:enabled="true" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/rdoButtonPizza"
android:id="@+id/radioButtonPizza"
android:contentDescription="Pizza Party"
android:onClick="onRadioButtonClicked"
android:enabled="false" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/rdoButtonGraduation"
android:id="@+id/radioButtonGraduation"
android:contentDescription="@string/rdoButtonGraduation"
android:contextClickable="false"
android:onClick="onRadioButtonClicked" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/rdoButtonRetirement"
android:id="@+id/radioButtonRetirement"
android:contentDescription="@string/rdoButtonRetirement"
android:onClick="onRadioButtonClicked" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/rdoButtonHoliday"
android:id="@+id/radioButtonHoliday"
android:contentDescription="@string/rdoButtonHoliday"
android:onClick="onRadioButtonClicked" />
</RadioGroup>
</TableRow>
<TableRow>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btnChooseDate"
android:id="@+id/buttonChooseDate" />
</TableRow>
<TableRow android:transitionGroup="false">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btnNextStep"
android:id="@+id/buttonNextStep"
android:contentDescription="@string/btnNextStep" />
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/textViewOutput"
android:contentDescription="@string/txtViewOutput"
android:layout_column="1" />
</TableRow>
Any help would be appreciated.
Upvotes: 1
Views: 674
Reputation: 13922
you need to define the method:
public void onRadioButtonClicked(View v){
//... some logic or nothing
}
this method is attempting to be called since you define android:onClick="onRadioButtonClicked"
in xml, therefore the click of the view expects a method in your activity called this which passes the View
clicked as its only parameter.
Upvotes: 2