Question

当我在Android模拟器中运行我的项目时，active_main.xml界面会正确弹出按下发送按钮后，必须切换到activity_Display_Message界面但它在模拟器上给我错误

应用程序第一个应用程序（进程com.helloworld.myfisrtapp）意外停止了。请再试一次。

这些是错误：

06-04 16:32:04.648: D/dalvikvm(276): VFY: dead code 0x008e-0092 in Landroid/support/v7/internal/widget/ActionBarView;.<init> (Landroid/content/Context;Landroid/util/AttributeSet;)V
06-04 16:32:04.648: D/dalvikvm(276): VFY: dead code 0x009c-00a0 in Landroid/support/v7/internal/widget/ActionBarView;.<init> (Landroid/content/Context;Landroid/util/AttributeSet;)V
06-04 16:32:17.908: D/AndroidRuntime(276): Shutting down VM
06-04 16:32:17.908: W/dalvikvm(276): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
06-04 16:32:18.028: D/dalvikvm(276): GC_FOR_MALLOC freed 4899 objects / 284512 bytes in 105ms
06-04 16:32:18.048: E/AndroidRuntime(276): FATAL EXCEPTION: main
06-04 16:32:18.048: E/AndroidRuntime(276): java.lang.IllegalStateException: Could not find a method SendMessage(View) in the activity class com.helloworld.myfirstapp.MainActivity for onClick handler on view class android.widget.Button
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.view.View$1.onClick(View.java:2059)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.view.View.performClick(View.java:2408)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.view.View$PerformClick.run(View.java:8816)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.os.Handler.handleCallback(Handler.java:587)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.os.Handler.dispatchMessage(Handler.java:92)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.os.Looper.loop(Looper.java:123)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.app.ActivityThread.main(ActivityThread.java:4627)
06-04 16:32:18.048: E/AndroidRuntime(276):  at java.lang.reflect.Method.invokeNative(Native Method)
06-04 16:32:18.048: E/AndroidRuntime(276):  at java.lang.reflect.Method.invoke(Method.java:521)
06-04 16:32:18.048: E/AndroidRuntime(276):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-04 16:32:18.048: E/AndroidRuntime(276):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-04 16:32:18.048: E/AndroidRuntime(276):  at dalvik.system.NativeStart.main(Native Method)
06-04 16:32:18.048: E/AndroidRuntime(276): Caused by: java.lang.NoSuchMethodException: SendMessage
06-04 16:32:18.048: E/AndroidRuntime(276):  at java.lang.ClassCache.findMethodByName(ClassCache.java:308)
06-04 16:32:18.048: E/AndroidRuntime(276):  at java.lang.Class.getMethod(Class.java:985)
06-04 16:32:18.048: E/AndroidRuntime(276):  at android.view.View$1.onClick(View.java:2052)
06-04 16:32:18.048: E/AndroidRuntime(276):  ... 11 more

我的清单文件：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.helloworld.myfirstapp"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="19" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.helloworld.myfirstapp.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>
    <activity
        android:name="com.helloworld.myfirstapp.DisplayMessageActivity"
        android:label="@string/title_activity_display_message"
        android:parentActivityName="com.helloworld.myfirstapp.MainActivity" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.helloworld.myfirstapp.MainActivity" />
    </activity>
</application>

我没有任何线索如何修复它我是android开发的新手以及stackoverflow 谢谢你的帮助

Answer 1

java.lang.IllegalStateException：无法在视图类android.widget.Button上的onClick处理程序的活动类com.helloworld.myfirstapp.MainActivity中找到方法SendMessage（View）

您有一个XML格式为android:onClick="SendMessage"的按钮，而您的活动没有SendMessage(View)方法。从XML中删除onClick或在活动中添加方法。

Answer 2

请提供您在其中加载的Activity和xml的代码。看来你在xml和onClick参数函数中有一个按钮，你没有把它放在你的活动中......

应用程序第一个应用程序意外停止

2 个答案: