Better way to do drill-down selection in iOS?

Question

I show a UIPickerView with a list of options:

• Vegetables,
• Fruits,
• Greetings,
• Shopping

When selecting any of the above options, will show another UIPickerView with options like (if we have selected greetings):

• Hi,
• Hello,
• Good morning.

When selecting any of that, will show another picker with options like:

• Hi dear,
• Hi, how are you,
• Hi, how are you doing

Now when selecting any of that, needs to be placed on a text view. The functionality is supposed to behave like templates to choose from.

I feel there is something odd in this, but cannot pinpoint it. Is there a better pattern?

Answer 1

Instead of pickers, you should probably use table views with disclosure indicators (>), as seen in the Settings app. Per the iOS Human Interface Guidelines:

The plain table style is well-suited to display a hierarchy of information. Each list item can lead to a different subset of information displayed in another list. Users follow a path through the hierarchy by selecting one item in each successive list. The disclosure indicator tells users that tapping anywhere in the row reveals the subset of information in a new list.