Ao inserir a tag name para a Application no manifesto, o app passou a apresentar crash ao buildar:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.cursoandroid.agenda">
<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"
android:name=".app.AgendaApplication">
<activity android:name=".app.ui.activity.ListaAlunosActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".app.ui.activity.FormularioAlunoActivity" />
<!-- <intent-filter>-->
<!-- <action android:name="android.intent.action.MAIN" />-->
<!-- <category android:name="android.intent.category.LAUNCHER" />-->
<!-- </intent-filter>-->
<!-- </activity>-->
</application>
</manifest>
Log de Erro:
--------- beginning of crash
2020-05-12 17:40:46.201 6475-6475/com.cursoandroid.agenda E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.cursoandroid.agenda, PID: 6475
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cursoandroid.agenda/com.cursoandroid.agenda.app.ui.activity.ListaAlunosActivity}: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.cursoandroid.agenda.app.adapter.ListaAlunosAdapter.getItemId(ListaAlunosAdapter.java:41)
at android.widget.AdapterView.getItemIdAtPosition(AdapterView.java:815)
at android.widget.AdapterView.setSelectedPositionInt(AdapterView.java:1236)
at android.widget.ListView.setAdapter(ListView.java:599)
at com.cursoandroid.agenda.app.ui.activity.ListaAlunosActivity.configuraAdapter(ListaAlunosActivity.java:115)
at com.cursoandroid.agenda.app.ui.activity.ListaAlunosActivity.configuraLista(ListaAlunosActivity.java:86)
at com.cursoandroid.agenda.app.ui.activity.ListaAlunosActivity.onCreate(ListaAlunosActivity.java:34)
at android.app.Activity.performCreate(Activity.java:7802)
at android.app.Activity.performCreate(Activity.java:7791)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7356)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)