仅在首次启动应用程序时，如何启动具有特定活动的应用程序？

我只想在我的App首次启动时就启动一个Activity，从那时起，该App应该每次都与另一个（启动器）Activity一起启动。因此，我基于此SO答案实施了一个解决方案。

该解决方案围绕一种boolean偏好（startedBeforePreferenceKey在以下代码中具有作为键的偏好）进行。在onCreate()启动程序活动的中，我尝试使用键检索首选项startedBeforePreferenceKey并将其存储在变量中startedBefore。如果首选项不存在，startedBefore则分配false。

然后，我检查是否startedBefore为false，如果是，则创建所提到的首选项，为其赋予一个值true并将其存储在中SharedPreferences，然后启动此活动，该活动应首次启动该应用程序。这样，当下次执行该检查时onCreate()，startedBefore将分配该检查true，因此一次启动活动将不会开始。

问题在于，当首次启动该应用程序时，普通启动器会在该活动之前立即显示，只有在首次启动该应用程序时才应启动该应用程序。

首次启动该应用程序时，普通启动器完全不显示。直接，应该显示我想在应用程序首次启动时显示的特殊活动。

我该怎么办？

SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
boolean startedBefore = sharedPreferences.getBoolean(getString(R.string.startedBeforePreferenceKey), false);

if (!startedBefore) {
    SharedPreferences.Editor sharedPreferencesEditor = sharedPreferences.edit();
    sharedPreferencesEditor.putBoolean(getString(R.string.startedBeforePreferenceKey), true);
    sharedPreferencesEditor.commit();
    startActivity(new Intent(this, MainActivity.class)); 
} 

编辑： @HammadTariqSahi

首先，摘录自LogCat：

03-16 08:42:25.629: E/AndroidRuntime(1837): FATAL EXCEPTION: main
03-16 08:42:25.629: E/AndroidRuntime(1837): Process: tests.globalactivitytest, PID: 1837
03-16 08:42:25.629: E/AndroidRuntime(1837): java.lang.RuntimeException: Unable to instantiate application tests.globalactivitytest.activity.GlobalActivity: java.lang.ClassNotFoundException: Didn't find class "tests.globalactivitytest.activity.GlobalActivity" on path: DexPathList[[zip file "/data/app/tests.globalactivitytest-1/base.apk"],nativeLibraryDirectories=[/data/app/tests.globalactivitytest-1/lib/x86, /vendor/lib, /system/lib]]
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.LoadedApk.makeApplication(LoadedApk.java:578)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4680)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.ActivityThread.-wrap1(ActivityThread.java)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.os.Handler.dispatchMessage(Handler.java:102)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.os.Looper.loop(Looper.java:148)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.ActivityThread.main(ActivityThread.java:5417)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at java.lang.reflect.Method.invoke(Native Method)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
03-16 08:42:25.629: E/AndroidRuntime(1837): Caused by: java.lang.ClassNotFoundException: Didn't find class "tests.globalactivitytest.activity.GlobalActivity" on path: DexPathList[[zip file "/data/app/tests.globalactivitytest-1/base.apk"],nativeLibraryDirectories=[/data/app/tests.globalactivitytest-1/lib/x86, /vendor/lib, /system/lib]]
03-16 08:42:25.629: E/AndroidRuntime(1837):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.Instrumentation.newApplication(Instrumentation.java:981)
03-16 08:42:25.629: E/AndroidRuntime(1837):     at android.app.LoadedApk.makeApplication(LoadedApk.java:573)
03-16 08:42:25.629: E/AndroidRuntime(1837):     ... 9 more
03-16 08:42:25.629: E/AndroidRuntime(1837):     Suppressed: java.lang.ClassNotFoundException: tests.globalactivitytest.activity.GlobalActivity
03-16 08:42:25.629: E/AndroidRuntime(1837):         at java.lang.Class.classForName(Native Method)
03-16 08:42:25.629: E/AndroidRuntime(1837):         at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
03-16 08:42:25.629: E/AndroidRuntime(1837):         at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
03-16 08:42:25.629: E/AndroidRuntime(1837):         at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
03-16 08:42:25.629: E/AndroidRuntime(1837):         ... 12 more
03-16 08:42:25.629: E/AndroidRuntime(1837):     Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

GlobalActivity.java：

package tests.globalactivitytest;

import android.app.Application;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;

public class GlobalActivity extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        //SharedPreferences.Editor editor = sharedPreferences.edit(); 
        boolean launchedBefore = sharedPreferences.getBoolean("launchedBefore", false);
        if (launchedBefore) {
            Intent intent = new Intent(this, MainActivity.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        } else {
            Intent intent = new Intent(this, LaunchOnceActivity.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        }
    }
}

MainActivity.java：

package tests.globalactivitytest;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

LaunchOnceActivity.java：

package tests.globalactivitytest;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

public class LaunchOnceActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_launch_once);
    }
}

清单文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="tests.globalactivitytest"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="23" />

    <application
        android:name=".activity.GlobalActivity"
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <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>
        <activity
            android:name=".LaunchOnceActivity"
            android:label="@string/title_activity_launch_once" >
        </activity>
    </application>

</manifest>