5
प्रारंभ करने में अक्षम मेरे समस्या यह है कि जब मैं एंड्रॉयड एमुलेटर पर मेरे अनुप्रयोग चलाने के अनुप्रयोग प्रारंभ हो जाता है लेकिन जल्दी दुर्घटनाओं और पॉपअप प्रदर्शित करता है: "दुर्भाग्य से, TipCalculator बंद कर दिया है।" मैंने कोड को देखा है और जवाब के लिए पूरी तरह से इंटरनेट की खोज की है। हाँ मैं एंड्रॉइड विकास में एक नया हूँ। मैंने लॉगकैट द्वारा जेनरेट की गई त्रुटियों को देखा है लेकिन मुझे पता नहीं है कि समस्या को नहीं पता और मुझे प्राप्त त्रुटियों के आधार पर कहां मिलना है।एंड्रॉयड - गंभीर अपवाद: - मुख्य गतिविधि ComponentInfo
यहाँ मेरी कोड है:
TipCalc.java
पैकेज com.troysantry.tipcalculator;
import android.os.Bundle;
import android.app.Activity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.widget.EditText;
public class TipCalc extends Activity {
public static final String TOTAL_BILL = "TOTAL_BILL";
public static final String CURRENT_TIP = "CURRENT_TIP";
public static final String BILL_WITHOUT_TIP = "BILL_WITHOUT_TIP";
public double billBeforeTip;
public double tipAmount;
public double finalBill;
EditText txtBillBeforeTip;
EditText txtTipAmount;
EditText txtFinalBill;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tip_calc);
if(savedInstanceState==null){
billBeforeTip=0.0;
tipAmount=0.15;
finalBill=0.0;
}
else{
billBeforeTip=savedInstanceState.getDouble(BILL_WITHOUT_TIP);
tipAmount=savedInstanceState.getDouble(CURRENT_TIP);
finalBill=savedInstanceState.getDouble(TOTAL_BILL);
}
txtBillBeforeTip = (EditText) findViewById(R.id.txtBill);
txtTipAmount=(EditText) findViewById(R.id.txtTip);
txtFinalBill=(EditText) findViewById(R.id.txtFinal);
txtBillBeforeTip.addTextChangedListener(billBeforeTipListener);
}
private TextWatcher billBeforeTipListener = new TextWatcher(){
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
try{
billBeforeTip = Double.parseDouble(s.toString());
}
catch(NumberFormatException e){
billBeforeTip=0.0;
}
UpdateTipAndFinalBill();
}
};
protected void onSaveInstanceState(Bundle outState){
super.onSaveInstanceState(outState);
outState.putDouble(TOTAL_BILL, finalBill);
outState.putDouble(CURRENT_TIP, tipAmount);
outState.putDouble(BILL_WITHOUT_TIP, billBeforeTip);
}
private void UpdateTipAndFinalBill(){
double tipAmount = Double.parseDouble(txtTipAmount.getText().toString());
double finalBill = billBeforeTip + (billBeforeTip*tipAmount);
txtFinalBill.setText(String.format("%.02f",finalBill));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.tip_calc, menu);
return true;
}
}
activity_tip_calc.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".TipCalc" >
<TextView
android:id="@+id/tvBill"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="19dp"
android:layout_marginTop="14dp"
android:text="@string/bill_text_view" />
<TextView
android:id="@+id/tvFinal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@+id/txtBill"
android:layout_below="@+id/txtBill"
android:layout_marginRight="24dp"
android:layout_marginTop="18dp"
android:text="@string/final_text_view" />
<EditText
android:id="@+id/txtFinal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/tvFinal"
android:layout_alignBottom="@+id/tvFinal"
android:layout_alignRight="@+id/txtTip"
android:layout_marginRight="25dp"
android:ems="6"
android:inputType="numberDecimal"
android:text="@string/final_bill_edit_text" />
<TextView
android:id="@+id/tvTip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/tvFinal"
android:layout_centerHorizontal="true"
android:text="@string/tip_text_view" />
<EditText
android:id="@+id/txtTip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/tvTip"
android:layout_alignBottom="@+id/tvTip"
android:layout_toRightOf="@+id/tvTip"
android:ems="5"
android:inputType="numberDecimal"
android:text="@string/tip_edit_text"
android:textSize="16sp" />
<EditText
android:id="@+id/txtBill"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/tvBill"
android:layout_alignBottom="@+id/tvBill"
android:layout_toRightOf="@+id/tvBill"
android:ems="5"
android:inputType="numberDecimal"
android:text="@string/bill_edit_text"
android:textSize="16sp" />
</RelativeLayout>
LogCat
11-04 01:24:10.403: D/AndroidRuntime(1050): Shutting down VM
11-04 01:24:10.403: W/dalvikvm(1050): threadid=1: thread exiting with uncaught exception (group=0x41465700)
11-04 01:24:10.543: E/AndroidRuntime(1050): FATAL EXCEPTION: main
11-04 01:24:10.543: E/AndroidRuntime(1050): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.troysantry.tipcalculator/com.troysantry.tipcalculator.TipCalc}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.os.Looper.loop(Looper.java:137)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.ActivityThread.main(ActivityThread.java:5103)
11-04 01:24:10.543: E/AndroidRuntime(1050): at java.lang.reflect.Method.invokeNative(Native Method)
11-04 01:24:10.543: E/AndroidRuntime(1050): at java.lang.reflect.Method.invoke(Method.java:525)
11-04 01:24:10.543: E/AndroidRuntime(1050): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-04 01:24:10.543: E/AndroidRuntime(1050): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 01:24:10.543: E/AndroidRuntime(1050): at dalvik.system.NativeStart.main(Native Method)
11-04 01:24:10.543: E/AndroidRuntime(1050): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:24:10.543: E/AndroidRuntime(1050): at com.troysantry.tipcalculator.TipCalc.onCreate(TipCalc.java:45)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.Activity.performCreate(Activity.java:5133)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-04 01:24:10.543: E/AndroidRuntime(1050): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-04 01:24:10.543: E/AndroidRuntime(1050): ... 11 more
11-04 01:29:11.177: I/Process(1050): Sending signal. PID: 1050 SIG: 9
11-04 01:31:32.080: D/AndroidRuntime(1109): Shutting down VM
11-04 01:31:32.080: W/dalvikvm(1109): threadid=1: thread exiting with uncaught exception (group=0x41465700)
11-04 01:31:32.194: E/AndroidRuntime(1109): FATAL EXCEPTION: main
11-04 01:31:32.194: E/AndroidRuntime(1109): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.troysantry.tipcalculator/com.troysantry.tipcalculator.TipCalc}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.os.Looper.loop(Looper.java:137)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.ActivityThread.main(ActivityThread.java:5103)
11-04 01:31:32.194: E/AndroidRuntime(1109): at java.lang.reflect.Method.invokeNative(Native Method)
11-04 01:31:32.194: E/AndroidRuntime(1109): at java.lang.reflect.Method.invoke(Method.java:525)
11-04 01:31:32.194: E/AndroidRuntime(1109): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-04 01:31:32.194: E/AndroidRuntime(1109): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 01:31:32.194: E/AndroidRuntime(1109): at dalvik.system.NativeStart.main(Native Method)
11-04 01:31:32.194: E/AndroidRuntime(1109): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 01:31:32.194: E/AndroidRuntime(1109): at com.troysantry.tipcalculator.TipCalc.onCreate(TipCalc.java:44)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.Activity.performCreate(Activity.java:5133)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-04 01:31:32.194: E/AndroidRuntime(1109): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-04 01:31:32.194: E/AndroidRuntime(1109): ... 11 more
11-04 01:36:33.195: I/Process(1109): Sending signal. PID: 1109 SIG: 9
11-04 02:11:09.684: D/AndroidRuntime(1167): Shutting down VM
11-04 02:11:09.684: W/dalvikvm(1167): threadid=1: thread exiting with uncaught exception (group=0x41465700)
11-04 02:11:09.855: E/AndroidRuntime(1167): FATAL EXCEPTION: main
11-04 02:11:09.855: E/AndroidRuntime(1167): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.troysantry.tipcalculator/com.troysantry.tipcalculator.TipCalc}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.os.Handler.dispatchMessage(Handler.java:99)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.os.Looper.loop(Looper.java:137)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.ActivityThread.main(ActivityThread.java:5103)
11-04 02:11:09.855: E/AndroidRuntime(1167): at java.lang.reflect.Method.invokeNative(Native Method)
11-04 02:11:09.855: E/AndroidRuntime(1167): at java.lang.reflect.Method.invoke(Method.java:525)
11-04 02:11:09.855: E/AndroidRuntime(1167): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-04 02:11:09.855: E/AndroidRuntime(1167): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-04 02:11:09.855: E/AndroidRuntime(1167): at dalvik.system.NativeStart.main(Native Method)
11-04 02:11:09.855: E/AndroidRuntime(1167): Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText
11-04 02:11:09.855: E/AndroidRuntime(1167): at com.troysantry.tipcalculator.TipCalc.onCreate(TipCalc.java:44)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.Activity.performCreate(Activity.java:5133)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-04 02:11:09.855: E/AndroidRuntime(1167): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-04 02:11:09.855: E/AndroidRuntime(1167): ... 11 more
परियोजना से साफ़ करने के बाद आवेदन चलाने का प्रयास करें-> स्वच्छ –
क्या आप प्रोजेक्ट को साफ और निर्माण करने का प्रयास कर सकते हैं, और ऐप को फिर से लॉन्च कर सकते हैं? –
मैं @ ρяσѕρєяK से सहमत हूं, मैंने आपके कोड की कोशिश की और ऐसा लगता है कि यह ठीक काम कर रहा है। – blitzen12