App is reopening all time from the splash screen

The Android Manifest file is what determines the "launcher" or what activity will start when opening your app from the icon. While browsing through the app, if you open another application or press the home button your app goes into the foreground or "pause" state. That is why when you find your app in the recent tab it is resumed from it's last location. The question is where exactly do you want your app to start from? Your android manifest file should be the only file with an orange icon in your project file list. Open it up and it should look similar to this:

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <activity
            android:name=".CrimePagerActivity"
            android:parentActivityName=".CrimeListActivity">
        </activity>
        <activity
            android:name=".CrimeListActivity">

                  //THIS IS YOUR LAUNCHER!!!

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

    </application>

</manifest>

In order copy and paste your launcher (everything inside the intent filter tag)and paste it inside of the activity tag that you want your application to start from.