GSON: Array or List as root of JSON @DrBFraser

Uploaded January 2023 | Updated September 2026, 2 weeks ago

Reading/writing an array or list as the root of a JSON file using GSON.

My Videos on GSON
- GSON: Deserializing JSON under explicit control of Named fields: youtu.be/HSuVtkdej8Q
- GSON: Use IntelliJ: youtu.be/Qc9EfiepfWs
- GSON: Array or List as root of JSON: youtu.be/trCGXXNVVYE
- GSON: LocalDate Adapter: youtu.be/j2vWhohxBVA

$Context (Option) Menu: Android Programming Demonstration on how to create a context menu (options menu) on the Android phone. Contents: - Understanding the context menu. - Adding items to a context menu. - Responding to click events for the menu: launching another activity or changing text in a TextView. - Adding an icon to the context menu. Sample icons I show are from the Annadroid Tehxseven icon pack: http://www.themebowl.com/annadroid-icons-by-tehkseven.html Code: @Override public boolean onOptionsItemSelected(MenuItem item) { super.onOptionsItemSelected(item); // Dump out the event: String message = Title: + item.getTitle() + , id= + item.getItemId(); Toast.makeText(this, message, Toast.LENGTH_LONG).show(); switch(item.getItemId()) { case R.id.menu_help: startActivity(new Intent(this, HelpActivity.class)); break; case R.id.menu_settings: TextView textView = (TextView) findViewById(R.id.mainText); textView.setText(You changed the text!); } return true; }$

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