Android 应用程序停止工作

日志显示

10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime: Process: com.example.rahul.myapplication, PID: 15064
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.rahul.myapplication/com.example.rahul.myapplication.StudentDetail}; have you declared this activity in your AndroidManifest.xml?
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1794)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.Instrumentation.execStartActivity(Instrumentation.java:1512)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.Activity.startActivityForResult(Activity.java:3917)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.Activity.startActivityForResult(Activity.java:3877)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.Activity.startActivity(Activity.java:4200)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.Activity.startActivity(Activity.java:4168)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at com.example.rahul.myapplication.MainActivity.onClick(MainActivity.java:52)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.view.View.performClick(View.java:5198)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.view.View$PerformClick.run(View.java:21147)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.os.Handler.handleCallback(Handler.java:739)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:95)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:148)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5417)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
10-16 13:51:51.310 15064-15064/com.example.rahul.myapplication E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

我的android清单文件

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

    </application>

</manifest>

请帮助我，在我单击“添加”按钮并进入“意图”后，程序将无法运行

---

调用学生详细信息类添加此项您的舱单：

<activity
   android:name=".StudentDetail"
   android:label="@string/student_label"
   android:theme="@style/AppTheme.NoActionBar" />

 <activity
        android:name=".StudentDetail"
        android:label="yourAppLabel"
        android:theme="@style/AppTheme.NoActionBar" />

---

在清单中写下下面的代码

 <activity
        android:name=".StudentDetail"
        android:label="@string/app_name"
        android:theme="@style/AppTheme.NoActionBar" >

    </activity>

---

您应该在清单文件中添加应用程序的每个活动。为了添加StudentDetail活动，请在清单中添加以下代码：

<activity
   android:name=".StudentDetail"
   android:label="@string/student_label"
   android:theme="@style/AppTheme.NoActionBar" />

 <activity
        android:name=".StudentDetail"
        android:label="yourAppLabel"
        android:theme="@style/AppTheme.NoActionBar" />

---

请注意，您可以为您的活动保留自己的标签和主题。这里使用的主题是AppTheme.NoActionBar。

您需要将StudentDetail活动添加到清单文件中 加

---

ActivityNotFoundException not found ExOption表示您没有在清单文件中声明您的活动您没有在清单中声明

StudentDetail

活动。可能的重复项您应该花多一点时间阅读日志：

[…]无法找到显式活动类{com.example.rahul.myapplication/com.example.rahul.myapplication.StudentDetail}；您是否在AndroidManifest.xml中声明了此活动？