2015-03-23 6 views
0

Я использую Android Studio, и мое приложение падает, как только я открываю эмулятор, хотя ошибок в коде нет.Приложение Crashing, No Errors

MainActivity.java

package com.example.ss.flashcash; 

import android.support.v7.app.ActionBarActivity; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.RadioButton; 
import android.widget.TextView; 
import android.widget.Toast; 

import java.text.DecimalFormat; 

public class MainActivity extends ActionBarActivity { 

    double money; 
    double convert; 
    EditText txtMoney; 
    RadioButton radEuros, radPesos, radRupees; 
    TextView txtResult; 
    Button btnComputeCost; 
    DecimalFormat hundredth; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     txtMoney = (EditText) findViewById(R.id.txtMoney); 
     radEuros = (RadioButton) findViewById(R.id.radEuros); 
     radPesos = (RadioButton) findViewById(R.id.radPesos); 
     radRupees = (RadioButton) findViewById(R.id.radRupees); 
     btnComputeCost = (Button) findViewById(R.id.btnComputeCost); 
     txtResult = (TextView) findViewById(R.id.txtResult); 
     btnComputeCost.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       calculate(); 
      } 
     }); 
    } 

    public void calculate() 
    { 
     hundredth = new DecimalFormat("#.##"); 
     money = Double.parseDouble(txtMoney.getText().toString()); 
     if (radEuros.isChecked()) 
     { 
      if (money < 100000) 
      { 
       convert = money * .92; 
       txtResult.setText("$" + hundredth.format(convert)); 
      } 
      else Toast.makeText(this, "Enter less than 100,000", Toast.LENGTH_LONG).show(); 
     } 
     if (radPesos.isChecked()) 
     { 
      if (money < 100000) 
      { 
       convert = money * 15.02; 
       txtResult.setText("$" + hundredth.format(convert)); 
      } 
      else Toast.makeText(this, "Enter less than 100,000", Toast.LENGTH_LONG).show(); 
     } 
     if (radRupees.isChecked()) 
     { 
      if (money < 100000) 
      { 
       convert = money * 62.32; 
       txtResult.setText("$" + hundredth.format(convert)); 
      } 
      else Toast.makeText(this, "Enter less than 100,000", Toast.LENGTH_LONG).show(); 
     } 
    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.menu_main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 

     //noinspection SimplifiableIfStatement 
     if (id == R.id.action_settings) { 
      return true; 
     } 

     return super.onOptionsItemSelected(item); 
    } 
} 

activity_main.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:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:text="Currency Converter" 
     android:id="@+id/txtHeader" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="54dp" 
     android:typeface="sans"/> 

    <RadioGroup 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/radioGroup" 
     android:layout_centerVertical="true"> 

     <RadioButton 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Euros" 
      android:id="@+id/radEuros" 
      android:layout_below="@+id/txtHeader" 
      android:layout_alignLeft="@+id/txtHeader" 
      android:layout_alignStart="@+id/txtHeader" 
      android:layout_marginTop="129dp" 
      android:checked="false" 
      android:textColor="#FF0000" 
      android:textSize="30dp" /> 

     <RadioButton 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Pesos" 
      android:id="@+id/radPesos" 
      android:layout_below="@+id/radEuros" 
      android:layout_alignLeft="@+id/radEuros" 
      android:layout_alignStart="@+id/radEuros" 
      android:checked="false" 
      android:textColor="#19FF19" 
      android:textSize="30dp" /> 

     <RadioButton 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Rupees" 
      android:id="@+id/radRupees" 
      android:checked="false" 
      android:layout_below="@+id/radPesos" 
      android:layout_alignLeft="@+id/radPesos" 
      android:layout_alignStart="@+id/radPesos" 
      android:textColor="#FFFF19" 
      android:textSize="30dp" /> 
    </RadioGroup> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:id="@+id/txtMoney" 
     android:layout_above="@+id/radioGroup" 
     android:layout_centerHorizontal="true" 
     android:hint="Enter $Amount" 
     android:typeface="sans"/> 

    <Button 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="CONVERT" 
     android:id="@+id/btnComputeCost" 
     android:layout_marginTop="45dp" 
     android:layout_below="@+id/radioGroup" 
     android:layout_toLeftOf="@+id/txtHeader" 
     android:layout_toStartOf="@+id/txtHeader" /> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:id="@+id/txtResult" 
     android:layout_alignParentBottom="true" 
     android:layout_alignLeft="@+id/btnComputeCost" 
     android:layout_alignStart="@+id/btnComputeCost" 
     android:typeface="sans"/> 

    <ImageView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/imageView" 
     android:src="@drawable/money3" 
     android:layout_alignBottom="@+id/btnComputeCost" 
     android:layout_toRightOf="@+id/radioGroup" 
     android:layout_toEndOf="@+id/radioGroup" /> 

</RelativeLayout> 

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.ss.flashcash" > 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/moneypng" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" 
     android:background="@color/blue"> 
     <activity 
      android:name=".MainActivity" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 
       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest> 

LogCat:

03-22 22:48:25.005 1929-1929/com.example.ss.flashcash I/art﹕ Not late-enabling -Xcheck:jni (already on) 
03-22 22:48:29.458 1929-1941/com.example.ss.flashcash I/art﹕ Background sticky concurrent mark sweep GC freed 2956(243KB) AllocSpace objects, 0(0B) LOS objects, 0% free, 2045KB/2045KB, paused 1.594ms total 285.202ms 
03-22 22:48:29.559 1929-1929/com.example.ss.flashcash D/AndroidRuntime﹕ Shutting down VM 
03-22 22:48:29.559 1929-1929/com.example.ss.flashcash E/AndroidRuntime﹕ FATAL EXCEPTION: main 
    Process: com.example.ss.flashcash, PID: 1929 
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ss.flashcash/com.example.ss.flashcash.MainActivity}: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) 
      at android.app.ActivityThread.access$800(ActivityThread.java:144) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:135) 
      at android.app.ActivityThread.main(ActivityThread.java:5221) 
      at java.lang.reflect.Method.invoke(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:372) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
    Caused by: java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.EditText 
      at com.example.ss.flashcash.MainActivity.onCreate(MainActivity.java:30) 
      at android.app.Activity.performCreate(Activity.java:5933) 
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105) 
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251) 
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) 
      at android.app.ActivityThread.access$800(ActivityThread.java:144) 
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) 
      at android.os.Handler.dispatchMessage(Handler.java:102) 
      at android.os.Looper.loop(Looper.java:135) 
      at android.app.ActivityThread.main(ActivityThread.java:5221) 
      at java.lang.reflect.Method.invoke(Native Method) 
      at java.lang.reflect.Method.invoke(Method.java:372) 
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) 
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 

Большое спасибо за помощь.

+0

Опубликовать исключение из вашего логарифма тоже. –

+0

Добавил logcat – CoolKat

ответ

3

Возможно получение ClassCastException, потому что здесь:

txtMoney = (EditText) findViewById(R.id.txtMoney); 

txtMoney это идентификатор для TextView но пытается бросить EditText

+1

почему голосует? –

0

Посмотрите на свой файл макета. Вы писали:

... 
<TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:id="@+id/txtMoney" 
     android:layout_above="@+id/radioGroup" 
     android:layout_centerHorizontal="true" 
     android:hint="Enter $Amount" 
     android:typeface="sans"/> 
... 

Теперь в вашей деятельности, код:

txtMoney = (EditText) findViewById(R.id.txtMoney); 

поднимает ClassCastException, потому что вы пытаетесь бросить TextView к EditText.

Надеюсь, у вас есть смысл.

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