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java.lang.RuntimeException:java.lang.ClassCastException: MainActivity cannot be cast to android.view.View$OnClickListene


java.lang.RuntimeException:java.lang.ClassCastException: MainActivity cannot be cast to android.view.View$OnClickListene

By : Sither Johna
Date : November 14 2020, 04:48 PM
fixed the issue. Will look into that further I am new to android. I have got stuck at the above issue. Please do help me to fix this. , You can't set OnClickListener like this:
code :
regButton.setOnClickListener((OnClickListener) this);
listButton.setOnClickListener((OnClickListener) this);
public class MyActivity extends Activity implements OnClickListener{
    //..
    //then just set this as OnClickListener. and you would need to implement method onClick.
    regButton.setOnClickListener(this);
    listButton.setOnClickListener(this);
    //..
}


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java.lang.RuntimeException: java.lang.ClassCastException: [B cannot be cast to java.lang.String

java.lang.RuntimeException: java.lang.ClassCastException: [B cannot be cast to java.lang.String


By : user3703863
Date : March 29 2020, 07:55 AM
wish help you to fix your issue It seems like your kafka spout read data in byte array format.
Try to use String Scheme by setting spoutconfig.scheme like below.
code :
spoutConfig.scheme = new SchemeAsMultiScheme(new StringScheme());
java.lang.RuntimeException: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String

java.lang.RuntimeException: java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.String


By : Tyler Krause
Date : March 29 2020, 07:55 AM
I hope this helps you . The problem was with my TickTuple Bolt Implementation.I have added the conf.put(Config.TOPOLOGY_TICK_TUPLE_FREQ_SECS, topology_tick_tuple_freq_secs) In my main topology configuration.Instead it should be added in the bolt where TickTuple has be implemented.
I edited my TickTuple code , added this snippet and everything works fine.
code :
 @Override
   public Map<String, Object> getComponentConfiguration() {
      // configure how often a tick tuple will be sent to our bolt
     Config conf = new Config();
     conf.put(Config.TOPOLOGY_TICK_TUPLE_FREQ_SECS, topology_tick_tuple_freq_secs);
        return conf;
   }  
java.lang.RuntimeException: java.lang.NoSuchMethodException: <init> [class android.view.View]

java.lang.RuntimeException: java.lang.NoSuchMethodException: <init> [class android.view.View]


By : stuckhouse008
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Possible Proguard is obfuscation some of your files,
Why dont you update your gradle file and set this value to false
code :
 minifyEnabled false
error: java.lang.ClassCastException: android.view.View cannot be cast to android.view.ViewGroup

error: java.lang.ClassCastException: android.view.View cannot be cast to android.view.ViewGroup


By : Volodymyr Kredynets
Date : March 29 2020, 07:55 AM
I wish this help you this error says that you are putting views inside . change this view to a ViewGroup (e.g linearLayout or RelativeLayout ) and your problem will disappear.
code :
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="@dimen/activity_horizontal_margin">
    <TextView
        android:id="@+id/name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingBottom="2dip"
        android:textColor="@color/colorAccent"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"      <!-- edit this height and width-->
                                            <!--also add orientation-->
        android:id="@+id/expandable">
        <TextView
            android:id="@+id/description"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#5d5d5d"
            android:textStyle="bold"/>
        <TextView
            android:id="@+id/email"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#5d5d40"
            android:textStyle="bold" />
        <TextView
            android:id="@+id/telephone"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="#5d5d40"
            android:textStyle="bold" />
    </LinearLayout>
</LinearLayout>
java.lang.RuntimeException: Unable to start activity ComponentInfo: java.lang.ClassCastException: cannot be cast to andr

java.lang.RuntimeException: Unable to start activity ComponentInfo: java.lang.ClassCastException: cannot be cast to andr


By : Soumya R
Date : March 29 2020, 07:55 AM
should help you out The Stacktrace tells you what is wrong : AppCompatEditText cannot be cast to android.widget.Button - the findByViewId you're using for the button is for a EditText
These are the same :
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