Set an Activity as the initial activity of an android app

Question

In my new android sudio project I created two activities. The first is the MainActivity and the second is called SecondActivity. The second is more like a sort of menù. Logically, when the app starts, SecondActivity must appear as first.

In the manifest I declared both the activities but I don't know how to declare them correctly so that SecondActivity appears as the first activity in the application after I loaded it on my Android device.

This is my project's manifest :

<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=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

`` to `` and second activity change to Main – Ivan86 May 29 '17 at 15:31 — Ivan86, May 29 '17 at 15:31

score 1 · Accepted Answer · answered May 29 '17 at 15:32

Did you tried this, my friend

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

score 0 · Answer 2 · answered May 29 '17 at 15:30

0

Two options...

1) Move the intent filter.

2) Switch the android:name property since ordering does not matter

answered May 29 '17 at 15:30

OneCricketeer

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score 0 · Answer 3 · answered May 29 '17 at 15:32

Try this:

<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=".MainActivity">

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

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

The intent-filter tag let you choose trough the action wich activity will be the main.

score 0 · Answer 4 · answered May 29 '17 at 15:37

Simply move the intent filters to the second activity like so:

...

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

...

The parts between the intent-filter tags (<intent-filter> and </intent-filter>) tell Android that this activity should be used when the launcher icon of your app is pressed (i.e. the initial activity).

Set an Activity as the initial activity of an android app

4 Answers4