Mein Programm stürzt ab, wenn auf die Schaltfläche geklickt wird. Warum?

Question

LOGCAT

04-03 20:59:46.189: E/AndroidRuntime(362): android.content.res.Resources$NotFoundException: String resource ID #0x0 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.content.res.Resources.getText(Resources.java:201) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.widget.TextView.setText(TextView.java:2857) 
04-03 20:59:46.189: E/AndroidRuntime(362): at coin.calc.wilson.CoinCalculatorActivity$1.onClick(CoinCalculatorActivity.java:65) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.view.View.performClick(View.java:2485) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.view.View$PerformClick.run(View.java:9080) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.os.Handler.handleCallback(Handler.java:587) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.os.Handler.dispatchMessage(Handler.java:92) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.os.Looper.loop(Looper.java:123) 
04-03 20:59:46.189: E/AndroidRuntime(362): at android.app.ActivityThread.main(ActivityThread.java:3683) 
04-03 20:59:46.189: E/AndroidRuntime(362): at java.lang.reflect.Method.invokeNative(Native Method) 
04-03 20:59:46.189: E/AndroidRuntime(362): at java.lang.reflect.Method.invoke(Method.java:507) 
04-03 20:59:46.189: E/AndroidRuntime(362): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
04-03 20:59:46.189: E/AndroidRuntime(362): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
04-03 20:59:46.189: E/AndroidRuntime(362): at dalvik.system.NativeStart.main(Native Method) 
04-03 20:59:49.720: I/Process(362): Sending signal. PID: 362 SIG: 9 

Hier ist mein Java-Code:

package coin.calc.wilson; 

import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

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

    Button solve = (Button)findViewById(R.id.bsolve); 
    solve.setOnClickListener(new OnClickListener() { 

     public void onClick(View v) { 
    int td, tc, twenty, ten, five, one, quarter, dime, nickel, penny; 
    EditText tdet = (EditText)findViewById(R.id.etdollars); 
    EditText tcet = (EditText)findViewById(R.id.etcents); 
     try{ 
      td = Integer.parseInt(tdet.getText().toString()); 
      tc = Integer.parseInt(tdet.getText().toString()); 
     } 
     catch (NumberFormatException e) { 
      td = tc = 0; 
     } 

    if (td < 0 || tc < 0){ 
     /* ERROR */ 
    } 
    else{ 
     if(td == 0){ 
      twenty = ten = five = one = 0; 
     } 
     else{ 
      one = td%5; 

      if(td >= 20){ 
       twenty = (td/20)-((td%20)/20); 
      } 
      else{ 
       twenty = 0; 
      } 

      int tda20 = td-(20*twenty); 
      if (tda20 >= 10){ 
       ten = (tda20/10)-((tda20%10)/10); 
      } 
      else{ 
       ten = 0; 
      } 
      int tda10 = tda20-(10*ten); 
      if(tda10>=5){ 
       five = (tda10/5)-((tda10%5)/5); 
      } 
      else{ 
       five = 0; 
      } 
      TextView tv20 = (TextView)findViewById(R.id.tvtwenty); 
      tv20.setText(twenty); 
      TextView tv10 = (TextView)findViewById(R.id.tvten); 
      tv10.setText(ten); 
      TextView tv5 = (TextView)findViewById(R.id.tvfive); 
      tv5.setText(five); 
      TextView tv1 = (TextView)findViewById(R.id.tvone); 
      tv1.setText(one); 

      } 


     if(tc == 0){ 
      quarter = dime = nickel = penny = 0; 
     } 
     else{ 
      penny = tc%5; 

      if(tc >= 25){ 
       quarter = (tc/25)-((td%25)/25); 
      } 
      else{ 
       quarter = 0; 
      } 

      int tcaq = tc-(25*quarter); 
      if (tcaq >= 10){ 
       dime = (tcaq/10)-((tcaq%10)/10); 
      } 
      else{ 
       dime = 0; 
      } 
      int tcad = tcaq-(10*ten); 
      if(tcad>=5){ 
       nickel = (tcad/5)-((tcad%5)/5); 
      } 
      else{ 
       nickel = 0; 
      } 
      TextView tvq = (TextView)findViewById(R.id.tvquarter); 
      tvq.setText(quarter); 
      TextView tvd = (TextView)findViewById(R.id.tvdime); 
      tvd.setText(dime); 
      TextView tvn = (TextView)findViewById(R.id.tvnickel); 
      tvn.setText(nickel); 
      TextView tvp = (TextView)findViewById(R.id.tvpenny); 
      tvp.setText(penny); 

      } 
} 
}});} 
} 

und hier ist das xml:

<TableRow 
    android:id="@+id/tableRow1" 
    android:layout_height="wrap_content" 
    android:gravity="center" > 

    <EditText 
     android:id="@+id/etdollars" 
     android:layout_width="156dp" 
     android:layout_height="wrap_content" 
     android:ems="10" 
     android:inputType="number" /> 

    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="dollars" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

</TableRow> 

<TableRow 
    android:id="@+id/tableRow2" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:gravity="center" > 

    <EditText 
     android:id="@+id/etcents" 
     android:layout_width="156dp" 
     android:layout_height="wrap_content" 
     android:ems="10" 
     android:inputType="number" /> 
    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="cents" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 
</TableRow> 

<LinearLayout 
    android:layout_width="wrap_content" 
    android:layout_height="60dp" 
    android:gravity="center" > 

    <Button 
     android:id="@+id/bsolve" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Solve!" /> 

</LinearLayout> 


<LinearLayout 
    android:layout_width="wrap_content" 
    android:layout_height="80dp" > 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="100dp" 
     android:layout_height="80dp" 
     android:layout_weight="0.00" 
     android:layout_marginLeft="8.75dp" 
     android:layout_marginRight="8.75dp" 
     android:src="@drawable/twenty" /> 

    <TextView 
     android:id="@+id/tvtwenty" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

    <ImageView 
     android:id="@+id/imageView2" 
     android:layout_width="61dp" 
     android:layout_height="80dp" 
     android:layout_marginLeft="43dp" 
     android:layout_marginRight="13.5dp" 
     android:src="@drawable/cquarter" /> 
    <TextView 
     android:id="@+id/tvquarter" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

</LinearLayout> 

<LinearLayout 
    android:layout_width="wrap_content" 
    android:layout_height="80dp" > 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="100dp" 
     android:layout_height="80dp" 
     android:layout_weight="0.00" 
     android:layout_marginLeft="8.75dp" 
     android:layout_marginRight="8.75dp" 
     android:src="@drawable/ten" /> 

    <TextView 
     android:id="@+id/tvten" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

    <ImageView 
     android:id="@+id/imageView2" 
     android:layout_width="61dp" 
     android:layout_height="80dp" 
     android:layout_marginLeft="43dp" 
     android:layout_marginRight="13.5dp" 
     android:src="@drawable/cdime" /> 
    <TextView 
     android:id="@+id/tvdime" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

</LinearLayout> 

<LinearLayout 
    android:layout_width="wrap_content" 
    android:layout_height="80dp" > 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="100dp" 
     android:layout_height="80dp" 
     android:layout_weight="0.00" 
     android:layout_marginLeft="8.75dp" 
     android:layout_marginRight="8.75dp" 
     android:src="@drawable/five" /> 

    <TextView 
     android:id="@+id/tvfive" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

    <ImageView 
     android:id="@+id/imageView2" 
     android:layout_width="61dp" 
     android:layout_height="80dp" 
     android:layout_marginLeft="43dp" 
     android:layout_marginRight="13.5dp" 
     android:src="@drawable/cnickel" /> 
    <TextView 
     android:id="@+id/tvnickel" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

</LinearLayout> 

<LinearLayout 
    android:layout_width="wrap_content" 
    android:layout_height="80dp" > 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="100dp" 
     android:layout_height="80dp" 
     android:layout_weight="0.00" 
     android:layout_marginLeft="8.75dp" 
     android:layout_marginRight="8.75dp" 
     android:src="@drawable/one" /> 

    <TextView 
     android:id="@+id/tvone" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

    <ImageView 
     android:id="@+id/imageView2" 
     android:layout_width="61dp" 
     android:layout_height="80dp" 
     android:layout_marginLeft="43dp" 
     android:layout_marginRight="13.5dp" 
     android:src="@drawable/cpenny" /> 
    <TextView 
     android:id="@+id/tvpenny" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_weight="0.00" 
     android:layout_gravity="center_vertical" 
     android:text="0" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

</LinearLayout> 

</TableLayout> 

Wenn es hilft, ich glaube, der Fehler kann etwas zu mache ich mit Ressourcen, die ich benutze (acht JPG), aber ich bin mir nicht sicher. Das Programm wird sauber ausgeführt, bis der OnClickListener aktiviert ist. Danke für jede Hilfe!

Answer 1

Ist hier (und in anderen Linien ähnlich):

tv20.setText(twenty); 

twenty ist int und sollte String sein (ich nehme an, dass Sie die Nummer in der Textview zeigen wollen):

tv20.setText(String.valueOf(twenty)); 

EDIT:

Alle diese Variablen haben die gleichen Fehler

int td, tc, twenty, ten, five, one, quarter, dime, nickel, penny;

Answer 2

versuchen die beiden folgenden Zeilen direkt unter Button solve = (Button)findViewById(R.id.bsolve); bewegen und vor solve.setOnClickListener(new OnClickListener()

EditText tdet = (EditText)findViewById(R.id.etdollars); 
EditText tcet = (EditText)findViewById(R.id.etcents); 

Answer 3

Sie haben einen kleinen, aber schweren Fehler:

Wenn Sie versuchen, eine Zahl/integer in eine Textview zu setzen, Sie Sie müssen es zuerst in einen String umwandeln. Wenn Sie das nicht tun, Android-Dinge verweisen Sie auf eine interne ID wie R.string.mynumber und das ist nicht das, was Sie wollen.