##Abstract Android event manager is an utility class to simplify android listeners. It has encapsulated most of the view event listeners. When bind an event to a view, you just need declare a method that has the corresponding event args signature, and annotate it with the EventAnnotation. It contains a CommonEventManager which just has implemented listeners that declared in View class directly, and a FullEventManager that has impemented more listeners.
We will get rid of the fussy listener's implementation by this utility. It is easy to use and uncouples activity with the views' event. Meanwhile, it has a good performance.
It is open source and free to use.
##How to use? Step 1: Define a class that extends the CommonEventManager or FullEventManager class, then you can define the event as you need. What we just need is annotating the method with EventAnnotation, and ensure the method has the proper signature. Note: the return value match is not required but recommended. E.g.
public class MainActivityEvent extends FullEventManager {
public MainActivityEvent(Activity activity) {
super(activity);
}
@EventAnnotation(R.id.redirectBtn) // or (value = R.id.redirectBtn, eventType = EventType.OnClick)
private void redirect(EventArgs args) {
// Do something.
}
@EventAnnotation(value = R.id.categoryList, eventType = EventType.AdapterView_OnItemClick)
private void onCategoryItemClick(AdapterViewEventArgs args) {
// Do something.
}
}
Step 2: Just initialize the event class in the corresponding activity's onCreate method. This will finished the register automatically.E.g.
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initialize/Register the events.
new MainActivityEvent(this);
}
...
}
##Document
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CommonEventManager Members
Field:
* _protected final Activity activity_ Des: Represent the activity that current event manager attached to.Constructor:
* _protected EventManager(Activity activity)_ Des: The only provided constructor with one parameter of Activity type.Inner Types:
* _EventArgs_ Des: Base class of all event args class. Argument type of: **_OnClick_**, **_OnLongClick_**. * _ContextMenuEventEventArgs_ Des: Base class of all event args class. Argument type of: **_OnCreateContextMenu_**. * _DragEventEventArgs_ Des: Base class of all event args class. Argument type of: **_OnDrag_**. * _FocusChangeEventEventArgs_ Des: Base class of all event args class. Argument type of: **_OnFocusChange_**. * _GenericMotionEventEventArgs_ Des: Base class of all event args class. Argument type of: **_OnGenericMotion_**, **_OnHover_**, **_OnTouch_**. * _KeyEventEventArgs_ Des: Base class of all event args class. Argument type of: **_OnKey_**. * _ContextMenuEventEventArgs_ Des: Base class of all event args class. Argument type of: **_OnCreateContextMenu_**. -
FullEventManager Members
Description:
Inherits from CommonEventManager.
Inner Types:
* _AdapterViewEventArgs_ Des: Base class of all event args class. Argument type of: **_AdapterView_OnItemClick_**, **_AdapterView_OnItemLongClick_**, **_AdapterView_OnItemSelected_**, **_AdapterView_OnNothingSelected_**. * _RadioGroupEventArgs_ Des: Base class of all event args class. Argument type of: **_RadioGroup_OnCheckedChanged_**. * _CompoundButtonEventArgs_ Des: Base class of all event args class. Argument type of: **_CompoundButton_OnCheckedChanged_**. * _TimePickerEventArgs_ Des: Base class of all event args class. Argument type of: **_TimePicker_OnTimeChanged_**. * _SeekBarEventArgs_ Des: Base class of all event args class. Argument type of: **_SeekBar_OnProgressChanged_**, **_SeekBar_OnStartTrackingTouch_**, **_SeekBar_OnStopTrackingTouch_**. * _RatingBarEventArgs_ Des: Base class of all event args class. Argument type of: **_RatingBar_OnRatingChanged_**. -
EventAnnotation Members
* _@IdRes int value_ Des: Default annotation member, view id of the view that register the handler to. Required. * _EventType eventType_ Des: Event type. Optional. Default value is EventType.OnClick. -
EventType Members
* _AdapterView_OnItemClick_ * _AdapterView_OnItemLongClick_ * _AdapterView_OnItemSelected_ * _AdapterView_OnNothingSelected_ * _CompoundButton_OnCheckedChanged_ * _OnClick_ * _OnCreateContextMenu_ * _OnDrag_ * _OnFocusChange_ * _OnGenericMotion_ * _OnHover_ * _OnKey_ * _OnLongClick_ * _OnTouch_ * _RadioGroup_OnCheckedChanged_ * _CompoundButton_OnCheckedChanged_ * _TimePicker_OnTimeChanged_ * _SeekBar_OnProgressChanged_ * _SeekBar_OnStartTrackingTouch_ * _SeekBar_OnStopTrackingTouch_ * _RatingBar_OnRatingChanged_