Question

Logcat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>

请点击添加按钮并在意图中帮助我该程序无法正常工作致电学生详情课.............................................. .................................................. .................................................. .................................................. .................................................. .................................................. ...........

Answer 1

将此添加到您的清单：

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

Answer 2

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

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

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

Answer 3

您需要将StudentDetail活动添加到清单文件中添加

free

Answer 4

在清单

中写下以下代码

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

    </activity>

Apllictication停止工作

4 个答案: