S_Assassin
New Member
a simple android app to calculate tips, i cant figure out this error. the java code has no errors and the xml has a couple of warnings. ill post both, but when I run it the app immediately quits and says "the application tipConverter (process.com.example.tipconverter) has stopped unexpectedly. please try again." and i dont know why. here is the xml:\[code\]<?xml version="1.0" encoding="utf-8"?><AbsoluteLayout android:id="@+id/widget0" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="Tip Calculator"/> <TextView android:id="@+id/widget28" android:layout_width="99dp" android:layout_height="17dp" android:text="Amount of Bill" android:layout_x="40dp" android:layout_y="32dp"/> <TextView android:id="@+id/widget29" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Percentage to Tip" android:layout_x="40dp" android:layout_y="82dp"/> <TextView android:id="@+id/widget30" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Number of People" android:layout_x="40dp" android:layout_y="132dp"/> <TextView android:id="@+id/widget31" android:layout_width="wrap_content" android:layout_height="18dp" android:text="Tip Amout" android:layout_x="40dp" android:layout_y="262dp"/> <TextView android:id="@+id/widget32" android:layout_width="wrap_content" android:layout_height="18dp" android:text="Total Per Person" android:layout_x="40dp" android:layout_y="352dp"/> <TextView android:id="@+id/widget33" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Total To Pay" android:layout_x="40dp" android:layout_y="302dp"/> <Button android:id="@+id/btncalculate" android:layout_width="87dp" android:layout_height="wrap_content" android:text="Calculate" android:layout_x="40dp" android:layout_y="182dp"/> <Button android:id="@+id/btnreset" android:layout_width="86dp" android:layout_height="wrap_content" android:text="Reset" android:layout_x="140dp" android:layout_y="182dp"/> <EditText android:id="@+id/txtbillamount" android:layout_width="wrap_content" android:layout_height="35dp" android:text="100" android:textSize="18sp" android:layout_x="200dp" android:layout_y="22dp"/> <EditText android:id="@+id/txtpercentage" android:layout_width="51dp" android:layout_height="36dp" android:text="10" android:textSize="18sp" android:layout_x="200dp" android:layout_y="72dp"/> <EditText android:id="@+id/txtpeople" android:layout_width="wrap_content" android:layout_height="39dp" android:text="1 " android:textSize="18sp" android:layout_x="200dp" android:layout_y="122dp"/> <TextView android:id="@+id/txttipamount" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="" android:layout_x="200dp" android:layout_y="262dp"/> <TextView android:id="@+id/txttotal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="" android:layout_x="200dp" android:layout_y="302dp"/> <TextView android:id="@+id/txtperperson" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="" android:layout_x="200dp" android:layout_y="352dp"/></AbsoluteLayout>\[/code\]and here is the java\[code\]package com.android;import com.example.tipconverter.R;import android.app.Activity;import android.os.Bundle;import android.widget.EditText;import android.widget.TextView;import android.widget.Button;import android.view.View;public class tipcalc extends Activity { private EditText txtbillamount; private EditText txtpeople; private EditText txtpercentage; private TextView txtperperson; private TextView txttipamount; private TextView txttotal; private Button btncalculate; private Button btnreset; private double billamount = 0; private double percentage = 0; private double numofpeople=0; private double tipamount = 0; private double totaltopay = 0; private double perperson = 0; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initControls(); } private void initControls() { txtbillamount = (EditText)findViewById(R.id.txtbillamount); txtpeople = (EditText)findViewById(R.id.txtpeople); txtpercentage = (EditText)findViewById(R.id.txtpercentage); txtperperson=(TextView)findViewById(R.id.txtperperson); txttipamount=(TextView)findViewById(R.id.txttipamount); txttotal=(TextView)findViewById(R.id.txttotal); btncalculate = (Button)findViewById(R.id.btncalculate); btnreset = (Button)findViewById(R.id.btnreset); btncalculate.setOnClickListener(new Button.OnClickListener() { public void onClick (View v) { calculate(); } }); btnreset.setOnClickListener(new Button.OnClickListener() { public void onClick (View v){ reset(); } }); } private void calculate() { billamount=Double.parseDouble(txtbillamount.getText().toString()); percentage=Double.parseDouble(txtpercentage.getText().toString()); numofpeople=Double.parseDouble(txtpeople.getText().toString()); tipamount=(billamount*percentage)/100; totaltopay=billamount+tipamount; perperson=totaltopay/numofpeople; txttipamount.setText(Double.toString(tipamount)); txttotal.setText(Double.toString(totaltopay)); txtperperson.setText(Double.toString(perperson)); } private void reset() { txtbillamount.setText(""); txtpeople.setText(""); txtpercentage.setText(""); txtperperson.setText(""); txttipamount.setText(""); txttotal.setText(""); }}\[/code\]any tips or help would be greatly appreciated. thanks!edithere is what the logcat prints\[code\]07-09 02:49:02.208: D/AndroidRuntime(283): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<07-09 02:49:02.208: D/AndroidRuntime(283): CheckJNI is ON07-09 02:49:02.278: D/AndroidRuntime(283): --- registering native functions ---07-09 02:49:02.598: D/AndroidRuntime(283): Shutting down VM07-09 02:49:02.598: D/dalvikvm(283): Debugger has detached; object registry had 1 entries07-09 02:49:02.608: I/AndroidRuntime(283): NOTE: attach of thread 'Binder Thread #3' failed07-09 02:49:02.878: D/AndroidRuntime(291): >>>>>>>>>>>>>> AndroidRuntime START <<<<<<<<<<<<<<07-09 02:49:02.878: D/AndroidRuntime(291): CheckJNI is ON07-09 02:49:02.958: D/AndroidRuntime(291): --- registering native functions ---07-09 02:49:03.267: I/ActivityManager(58): Starting activity: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.tipconverter/com.example.tipconverter }07-09 02:49:03.277: I/ActivityManager(58): Start proc com.example.tipconverter for activity com.example.tipconverter/com.example.tipconverter: pid=297 uid=10036 gids={}07-09 02:49:03.317: D/AndroidRuntime(291): Shutting down VM07-09 02:49:03.317: D/dalvikvm(291): Debugger has detached; object registry had 1 entries07-09 02:49:03.577: D/AndroidRuntime(297): Shutting down VM07-09 02:49:03.577: W/dalvikvm(297): threadid=1: thread exiting with uncaught exception (group=0x4001d800)07-09 02:49:03.597: I/ARMAssembler(58): generated scanline__00000077:03545404_00000004_00000000 [ 47 ipp] (67 ins) at [0x381c90:0x381d9c] in 289122 ns07-09 02:49:03.597: E/AndroidRuntime(297): FATAL EXCEPTION: main07-09 02:49:03.597: E/AndroidRuntime(297): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.tipconverter/com.example.tipconverter}: java.lang.ClassNotFoundException: com.example.tipconverter in loader dalvik.system.PathClassLoader[/data/app/com.example.tipconverter-1.apk]07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.ActivityThread.access$2300(ActivityThread.java:125)07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)07-09 02:49:03.597: E/AndroidRuntime(297): at android.os.Handler.dispatchMessage(Handler.java:99)07-09 02:49:03.597: E/AndroidRuntime(297): at android.os.Looper.loop(Looper.java:123)07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.ActivityThread.main(ActivityThread.java:4627)07-09 02:49:03.597: E/AndroidRuntime(297): at java.lang.reflect.Method.invokeNative(Native Method)07-09 02:49:03.597: E/AndroidRuntime(297): at java.lang.reflect.Method.invoke(Method.java:521)07-09 02:49:03.597: E/AndroidRuntime(297): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)07-09 02:49:03.597: E/AndroidRuntime(297): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)07-09 02:49:03.597: E/AndroidRuntime(297): at dalvik.system.NativeStart.main(Native Method)07-09 02:49:03.597: E/AndroidRuntime(297): Caused by: java.lang.ClassNotFoundException: com.example.tipconverter in loader dalvik.system.PathClassLoader[/data/app/com.example.tipconverter-1.apk]07-09 02:49:03.597: E/AndroidRuntime(297): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)07-09 02:49:03.597: E/AndroidRuntime(297): at java.lang.ClassLoader.loadClass(ClassLoader.java:573)07-09 02:49:03.597: E/AndroidRuntime(297): at java.lang.ClassLoader.loadClass(ClassLoader.java:532)07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)07-09 02:49:03.597: E/AndroidRuntime(297): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)07-09 02:49:03.597: E/AndroidRuntime(297): ... 11 more07-09 02:49:03.617: W/ActivityManager(58): Force finishing activity com.example.tipconverter/com.example.tipconverter07-09 02:49:04.119: W/ActivityManager(58): Activity pause timeout for HistoryRecord{45075650 com.example.tipconverter/com.example.tipconverter}07-09 02:49:14.293: W/ActivityManager(58): Activity destroy timeout for HistoryRecord{45075650 com.example.tipconverter/com.example.tipconverter}\[/code\]