Intent usage intent (1) Add category

Intent intent allows you to jump to different activity pages. However, intent has three different fields: Action, category, and data. Different functions can be implemented in the program; not to mention nonsense. Next we will introduce category.

Program Development with intent:

Intent. category_alternative;
Intent. category_app_browser;
Intent. category_app_calculator;
Intent. category_app_calendar;
Intent. category_app_contacts;
Intent. category_app_email;
Intent. category_app_gallery;
Intent. category_app_maps;
Intent. category_app_market;
Intent. category_app_messaging;
Intent. category_app_music;
Intent. category_browsable;
Intent. category_car_dock;
Intent. category_car_mode;
Intent. category_default;
Intent. category_assist_dock;
Intent. category_development_preference;
Intent. category_embed;
Intent. category_framework_instrumentation_test;
Intent. category_he_assist_dock;
Intent. category_home;
Intent. category_info;
Intent. category_launcher;
Intent. category_le_assist_dock;
Intent. category_monkey;
Intent. category_openable;
Intent. category_preference;
Intent. category_sample_code;
Intent. category_selected_alternative;
Intent. category_tab;
Intent. category_test;
Intent. category_unit_test;