java.lang.IndexOutOfBoundsException: Index: 1, Size: 0

报错如下：

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.ex1, PID: 7652
    java.lang.IndexOutOfBoundsException: Index: 1, Size: 0
        at java.util.ArrayList.add(ArrayList.java:483)
        at com.example.ex1.slice.MainAbilitySlice.getList(MainAbilitySlice.java:58)
        at com.example.ex1.slice.MainAbilitySlice.initData(MainAbilitySlice.java:34)
        at com.example.ex1.slice.MainAbilitySlice.onStart(MainAbilitySlice.java:27)
        at ohos.aafwk.ability.AbilitySlice.start(AbilitySlice.java:3270)
        at ohos.aafwk.ability.AbilitySliceScheduler.handleStartAbilitySlice(AbilitySliceScheduler.java:717)
        at ohos.aafwk.ability.AbilitySliceManager.onAbilityStart(AbilitySliceManager.java:300)
        at ohos.aafwk.ability.Ability.dispatchAbilityLifecycle(Ability.java:4579)
        at ohos.aafwk.ability.Ability.start(Ability.java:3634)
        at ohos.aafwk.ability.Ability.handleLifecycleTransaction(Ability.java:4751)
        at ohos.aafwk.ability.Ability.scheduleAbilityLifecycle(Ability.java:1517)
        at ohos.abilityshell.AbilityShellDelegate.scheduleAbilityLifecycle(AbilityShellDelegate.java:132)
        at ohos.abilityshell.AbilityShellActivityDelegate.onStart(AbilityShellActivityDelegate.java:339)
        at ohos.abilityshell.AbilityShellActivity.onStart(AbilityShellActivity.java:67)
        at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1447)
        at android.app.Activity.performStart(Activity.java:8237)
        at android.app.ActivityThread.handleStartActivity(ActivityThread.java:4084)
        at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:235)
        at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:215)
        at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:187)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:105)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2613)
        at android.os.Handler.dispatchMessage(Handler.java:110)
        at android.os.Looper.loop(Looper.java:219)
        at android.app.ActivityThread.main(ActivityThread.java:8668)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109)

原因
我在对arraylist添加元素时，id是从1开始的。