benim app başında çöker ve bana bir kuvvet yakın hata veriyor

Question

VitaminTable.java:

package vitaminTable.xyz.com; 

import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.*; 


public class VitaminTable extends Activity { 
Button vitaminA,vitaminB1,vitaminB2,vitaminB3,vitaminB5,vitaminB6,vitaminB7,vitaminB9; 
Button vitaminB12,vitaminC,vitaminD,vitaminE,vitaminK; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    vitaminA = (Button) findViewById(R.id.vitaminA); 
    vitaminB1 = (Button) findViewById(R.id.vitaminB1); 
    vitaminB2 = (Button) findViewById(R.id.vitaminB2); 
    vitaminB3 = (Button) findViewById(R.id.vitaminB3); 
    vitaminB5 = (Button) findViewById(R.id.vitaminB5); 
    vitaminB6 = (Button) findViewById(R.id.vitaminB6); 
    vitaminB7 = (Button) findViewById(R.id.vitaminB7); 
    vitaminB9 = (Button) findViewById(R.id.vitaminB9); 
    vitaminB12 = (Button) findViewById(R.id.vitaminB12); 
    vitaminC = (Button) findViewById(R.id.vitaminC); 
    vitaminD = (Button) findViewById(R.id.vitaminD); 
    vitaminE = (Button) findViewById(R.id.vitaminE); 
    vitaminK = (Button) findViewById(R.id.vitaminK); 

    vitaminA.setOnClickListener((OnClickListener) this); 
    vitaminB1.setOnClickListener((OnClickListener) this); 
    vitaminB2.setOnClickListener((OnClickListener) this); 
    vitaminB3.setOnClickListener((OnClickListener) this); 
    vitaminB5.setOnClickListener((OnClickListener) this); 
    vitaminB6.setOnClickListener((OnClickListener) this); 
    vitaminB7.setOnClickListener((OnClickListener) this); 
    vitaminB9.setOnClickListener((OnClickListener) this); 
    vitaminB12.setOnClickListener((OnClickListener) this); 
    vitaminC.setOnClickListener((OnClickListener) this); 
    vitaminD.setOnClickListener((OnClickListener) this); 
    vitaminE.setOnClickListener((OnClickListener) this); 
    vitaminK.setOnClickListener((OnClickListener) this); 
} 


public void onClick(View v) { 
    switch (v.getId()) { 

    case R.id.vitaminA: 
    Intent va = new Intent(VitaminTable.this,vita.class); 
    startActivity(va); 
    break; 

    case R.id.vitaminB1: 
     Intent vb1 = new Intent(VitaminTable.this,vitb1.class); 
     startActivity(vb1); 
    break; 

    case R.id.vitaminB2: 
     Intent vb2 = new Intent(VitaminTable.this,vitb2.class); 
     startActivity(vb2); 
    break; 

    case R.id.vitaminB3: 
     Intent vb3 = new Intent(VitaminTable.this,vitb3.class); 
     startActivity(vb3); 
    break; 

    case R.id.vitaminB5: 
     Intent vb5 = new Intent(VitaminTable.this,vitb5.class); 
     startActivity(vb5); 
     break; 

    case R.id.vitaminB6: 
     Intent vb6 = new Intent(VitaminTable.this,vitb6.class); 
     startActivity(vb6); 
     break; 

    case R.id.vitaminB7: 
     Intent vb7 = new Intent(VitaminTable.this,vitb7.class); 
     startActivity(vb7); 
     break; 

    case R.id.vitaminB9: 
     Intent vb9 = new Intent(VitaminTable.this,vitb9.class); 
     startActivity(vb9); 
     break; 

    case R.id.vitaminB12: 
     Intent vb12 = new Intent(VitaminTable.this,vitb12.class); 
     startActivity(vb12); 
     break; 

    case R.id.vitaminC: 
     Intent vc = new Intent(VitaminTable.this,vitc.class); 
     startActivity(vc); 
     break; 

    case R.id.vitaminD: 
     Intent vd = new Intent(VitaminTable.this,vitd.class); 
     startActivity(vd); 
     break; 

    case R.id.vitaminE: 
     Intent ve = new Intent(VitaminTable.this,vite.class); 
     startActivity(ve); 
     break; 

    case R.id.vitaminK: 
     Intent vk = new Intent(VitaminTable.this,vitk.class); 
     startActivity(vk); 
     break; 
    } 
} 
} 

bildirim dosyası:

<?xml version="1.0" encoding="utf-8"?> 
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" 
     package="vitaminTable.xyz.com" 
    android:versionCode="1" 
     android:versionName="1.0"> 
    <application android:icon="@drawable/icon" android:label="@string/app_name"> 
     <activity android:name=".VitaminTable" 
       android:label="@string/app_name"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 
      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
    <activity android:name=".vita"/> 
    <activity android:name=".vitb1" /> 
    <activity android:name=".vitb2" /> 
    <activity android:name=".vitb3" /> 
    <activity android:name=".vitb5" /> 
    <activity android:name=".vitb6" /> 
    <activity android:name=".vitb7" /> 
    <activity android:name=".vitb9" /> 
    <activity android:name=".vitb12" /> 
    <activity android:name=".vitc" /> 
    <activity android:name=".vitd" /> 
    <activity android:name=".vite" /> 
    <activity android:name=".vitk" /> 
    <activity android:name=".vitadailyreq" /> 

    </application> 


</manifest> 

main.xml:

<?xml version="1.0" encoding="utf-8"?> 


    <ScrollView 
android:id="@+id/Vitamintable" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
xmlns:android="http://schemas.android.com/apk/res/android" 
> 

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:stretchColumns="1" 
android:background="@drawable/fruit2"> 

    <TableRow> 
<Button 
android:id="@+id/vitaminA" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin A" 
    android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
    <Button 
android:id="@+id/vitaminB1" 
android:layout_width="240px" 
    android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
    android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin B1" 
android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminB2" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
    android:textColor="#D15FEE" 
android:textStyle="bold" 
    android:gravity="left" 
    android:text="Vitamin B2" 
    android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
    <Button 
android:id="@+id/vitaminB3" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
    android:background="#FFFFFF" 
    android:textColor="#D15FEE" 
    android:textStyle="bold" 
    android:gravity="left" 
android:text="Vitamin B3" 
android:fadingEdge="horizontal|vertical"/> 

    </TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminB5" 
android:layout_width="240px" 
android:layout_height="36px" 
    android:textSize="15sp" 
    android:background="#FFFFFF" 
    android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin B5" 
android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminB6" 
    android:layout_width="240px" 
android:layout_height="36px" 
    android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin B6" 
    android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminB7" 
android:layout_width="240px" 
android:layout_height="36px" 
    android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin B7" 
android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminB9" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
    android:text="Vitamin B9" 
    android:fadingEdge="horizontal|vertical"/> 

    </TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminB12" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin B12" 
android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminC" 
android:layout_width="240px" 
android:layout_height="36px" 
    android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin C" 
    android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminD" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin D" 
    android:fadingEdge="horizontal|vertical"/> 

    </TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminE" 
android:layout_width="240px" 
android:layout_height="36px" 
android:textSize="15sp" 
android:background="#FFFFFF" 
android:textColor="#D15FEE" 
android:textStyle="bold" 
android:gravity="left" 
android:text="Vitamin E" 
android:fadingEdge="horizontal|vertical"/> 

</TableRow> 
    <TableRow> 
<Button 
android:id="@+id/vitaminK" 
    android:layout_width="240px" 
    android:layout_height="36px" 
    android:textSize="15sp" 
    android:background="#FFFFFF" 
    android:textColor="#D15FEE" 
    android:textStyle="bold" 
    android:gravity="left" 
    android:text="Vitamin K" 
    android:fadingEdge="horizontal|vertical"/> 

    </TableRow> 

    </TableLayout> 
    </ScrollView> 

i get the following error: 
11-18 22:09:51.765: ERROR/AndroidRuntime(488): FATAL EXCEPTION: main 
11-18 22:09:51.765: ERROR/AndroidRuntime(488): java.lang.RuntimeException: Unable to start activity ComponentInfo{vitaminTable.xyz.com/vitaminTable.xyz.com.VitaminTable}: java.lang.ClassCastException: vitaminTable.xyz.com.VitaminTable 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.os.Handler.dispatchMessage(Handler.java:99) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.os.Looper.loop(Looper.java:123) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.ActivityThread.main(ActivityThread.java:4627) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at java.lang.reflect.Method.invokeNative(Native Method) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at java.lang.reflect.Method.invoke(Method.java:521) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at dalvik.system.NativeStart.main(Native Method) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488): Caused by: java.lang.ClassCastException: vitaminTable.xyz.com.VitaminTable 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at vitaminTable.xyz.com.VitaminTable.onCreate(VitaminTable.java:38) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
11-18 22:09:51.765: ERROR/AndroidRuntime(488):  ... 11 more 

Answer 1

Eh, ben tam olarak bilmiyorum, ama bildiğim kadarıyla sanırım olarak, benzer tüm hatları değiştirmeyi deneyin:

vitaminA.setOnClickListener ((OnClickListener) bu); bu gibi bir şeye

vitaminA.setOnClickListener (this); ,

ve Etkinlik sadece size sağlayacaktır Tutulma öneri izleyin OnClickListener uygulamak ve uygulanmayan yöntemler ekleyelim ..

bu size yardımcı olabilir olabilir deneyin .........

Answer 2

senin sorunun

sınıfında yazılmıştır ClassCastEx Bu konumda

onCreate (VitaminTable.java:38) hat 38 üzerinde öylesine

senin yanlış türden görünümünüzü döküm de larına tarafından

üzgün

fakat olmadan daha fazla yardımcı olamaz senin xml dosyasını düzenleyin ama yarattığınız görünümün türünü kontrol edin ve bu işlem

Answer 3

yapmalısınız. "Com.xyz.vitaminTable" veya muhtemelen daha iyi "com.xyz.vitamin" olmalıdır. Ancak bu, Manifest'te farklı kullanmadıkça bir sorun olmamalı. Lütfen AndroidManifest.xml içeriğini sağlayın.

Bunu, OnClickListener uygulamasını uygulamak için OnClickListener VitaminTable ürününe yayınlamak amacıyla.

public class VitaminTable extends Activity implements OnClickListener { 
    ... 
    implement OnClickListener-Methods here 
    ... 
}