致命错误而启动应用程序(E / AndroidRuntime(464):致命异常:主) [英] Fatal Error While Starting Application (E/AndroidRuntime(464): FATAL EXCEPTION: main)
问题描述
嘿,大家好我真正的新制作的应用程序,这正在发生,当我开始我的应用程序中的错误。我真的很感激,如果你们中的一个可以请告诉我如何解决这个问题,一步一步的:)谢谢您,请登录:
08-04 17:02:45.480:D / AndroidRuntime(464):关闭虚拟机
08-04 17:02:45.480:W / dalvikvm(464):主题ID = 1:螺纹退出与未捕获的异常(组= 0x40015560)
08-04 17:02:45.499:E / AndroidRuntime(464):致命异常:主要
08-04 17:02:45.499:E / AndroidRuntime(464):java.lang.RuntimeException的:无法启动的活动ComponentInfo {com.dice.alt / com.dice.alt.DiceAlternativeActivity}:java.lang.ClassCastException:机器人.widget.TextView
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.ActivityThread.access $ 1500(ActivityThread.java:117)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:931)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.os.Handler.dispatchMessage(Handler.java:99)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.os.Looper.loop(Looper.java:123)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.ActivityThread.main(ActivityThread.java:3683)
08-04 17:02:45.499:E / AndroidRuntime(464):在java.lang.reflect.Method.invokeNative(本机方法)
08-04 17:02:45.499:E / AndroidRuntime(464):在java.lang.reflect.Method.invoke(Method.java:507)
08-04 17:02:45.499:E / AndroidRuntime(464):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:839)
08-04 17:02:45.499:E / AndroidRuntime(464):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-04 17:02:45.499:E / AndroidRuntime(464):在dalvik.system.NativeStart.main(本机方法)
08-04 17:02:45.499:E / AndroidRuntime(464):java.lang.ClassCastException:产生的原因android.widget.TextView
08-04 17:02:45.499:E / AndroidRuntime(464):在com.dice.alt.DiceAlternativeActivity.onCreate(DiceAlternativeActivity.java:20)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-04 17:02:45.499:E / AndroidRuntime(464):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
08-04 17:02:45.499:E / AndroidRuntime(464):11 ...更多
08-04 17:02:48.179:I /处理(464):发送信号。 PID:464 SIG:9< / I>
XML:
< XML版本=1.0编码=UTF-8&GT?;
<滚动型的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:ID =@ + ID / Android的:清单
机器人:layout_width =FILL_PARENT
机器人:layout_height =WRAP_CONTENT>
<的LinearLayout
的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:layout_width =match_parent
机器人:layout_height =409dp
机器人:方向=垂直>
<的TextView
机器人:ID =@ + ID / textView1
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:文本=@字符串/ ndice
机器人:textAppearance =机器人:ATTR / textAppearanceMedium
机器人:文字颜色=#4876FF/>
<的EditText
机器人:ID =@ + ID / editText1
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:EMS =10
机器人:inputType =数字
机器人:文本=@字符串/空>
<不是requestFocus />
< /的EditText>
<的TextView
机器人:ID =@ + ID / textView2
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:文本=@字符串/ udice
机器人:textAppearance =机器人:ATTR / textAppearanceMedium
机器人:文字颜色=#4876FF/>
<的EditText
机器人:ID =@ + ID / editText2
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:EMS =10
机器人:inputType =数字
机器人:文本=@字符串/空/>
<按钮
机器人:ID =@ + ID /按钮1
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:文本=@字符串/结果/>
<的TextView
机器人:ID =@ + ID / OP
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文字颜色=#DC143C
机器人:layout_weight =0.54
机器人:文本=@字符串/空
机器人:textAppearance =:/>中的Android ATTR / textAppearanceLarge?
<的TextView
机器人:ID =@ + ID / textView3
机器人:layout_width =match_parent
机器人:layout_height =WRAP_CONTENT
机器人:文本=@字符串/ ABJ2
机器人:textAppearance =机器人:ATTR / textAppearanceSmall
机器人:文字颜色=#32CD32/>
< / LinearLayout中>
< /滚动型>
产生的原因:java.lang.ClassCastException:android.widget.TextView
- 在日志上面这条线表明,有一个例外,而试图投一种类型的变量不兼容的类型
- 您要么试图施放一些不兼容的TextView类型的变量,或者是铸造的TextView为不兼容的类型
例如:
按钮B =(TextView中)findViewById(R.id.mbut);
Hey Guys I Am really new to making apps and this a error that is occurring when i start my app. I would really be thankful if one of you could please tell me how to fix this problem step-by-step :) Thank You, log:
08-04 17:02:45.480: D/AndroidRuntime(464): Shutting down VM
08-04 17:02:45.480: W/dalvikvm(464): threadid=1: thread exiting with uncaught exception (group=0x40015560)
08-04 17:02:45.499: E/AndroidRuntime(464): FATAL EXCEPTION: main
08-04 17:02:45.499: E/AndroidRuntime(464): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dice.alt/com.dice.alt.DiceAlternativeActivity}: java.lang.ClassCastException: android.widget.TextView
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.os.Handler.dispatchMessage(Handler.java:99)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.os.Looper.loop(Looper.java:123)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.ActivityThread.main(ActivityThread.java:3683)
08-04 17:02:45.499: E/AndroidRuntime(464): at java.lang.reflect.Method.invokeNative(Native Method)
08-04 17:02:45.499: E/AndroidRuntime(464): at java.lang.reflect.Method.invoke(Method.java:507)
08-04 17:02:45.499: E/AndroidRuntime(464): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
08-04 17:02:45.499: E/AndroidRuntime(464): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-04 17:02:45.499: E/AndroidRuntime(464): at dalvik.system.NativeStart.main(Native Method)
08-04 17:02:45.499: E/AndroidRuntime(464): Caused by: java.lang.ClassCastException: android.widget.TextView
08-04 17:02:45.499: E/AndroidRuntime(464): at com.dice.alt.DiceAlternativeActivity.onCreate(DiceAlternativeActivity.java:20)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-04 17:02:45.499: E/AndroidRuntime(464): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
08-04 17:02:45.499: E/AndroidRuntime(464): ... 11 more
08-04 17:02:48.179: I/Process(464): Sending signal. PID: 464 SIG: 9</i>'
XML :
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="409dp"
android:orientation="vertical" >
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/ndice"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#4876FF" />
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="number"
android:text="@string/empty" >
<requestFocus />
</EditText>
<TextView
android:id="@+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/udice"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#4876FF" />
<EditText
android:id="@+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="number"
android:text="@string/empty" />
<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/result" />
<TextView
android:id="@+id/op"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#DC143C"
android:layout_weight="0.54"
android:text="@string/empty"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/textView3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/ABJ2"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#32CD32" />
</LinearLayout>
</ScrollView>
Caused by: java.lang.ClassCastException: android.widget.TextView
- This above line in your Log suggests that there is an exception while trying to cast a variable of one type to an incompatible type.
- You are either trying to cast something incompatible to TextView type variable, or you are casting TextView to an incompatible type.
Eg:
Button b = (TextView)findViewById(R.id.mbut);
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