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Classification of Intent (purpose)

• An explicit Intent

One of the constructor overloads:

     Intent Intent = new Intent (firstactivity.this,secondactivity.class);         Creates a intent object, the first parameter, content (incoming context), and the second parameter passes into the target activity.     startactivity (intent);                                                       Starting an activity with the StartActivity method, passing in parameters (intent)    

• Stealth Intent

The action and category descriptions are described in androidmainfest to initiate the activity only if the action and category in intent match category defaults to default (default ))

        <ActivityAndroid:name=". Secondactivity "Android:label= "This is the activity to start">            <Intent-filter>                <ActionAndroid:name= "Com.example.cenzhongman.ACTION_START"/>                <categoryAndroid:name= "Android.intent.category.DEFAULT"/>            </Intent-filter>        </Activity>

Constructor overload two:

 Public void OnClick (view view) {                Toast.maketext (firstactivity. This, "Start Page two", Toast.length_short). Show ();                 New Intent ("Com.example.cenzhongman.ACTION_START"); // A string                that passes directly to the action // default category default Match                 startactivity (intent);            }

Second, self-destruct an activity

Killing a person only requires a word, and the destruction activity is the same:

Finish ();

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