Android intent

1. Explicit intent:

-- In the same application

Intent intent = new Intent(this, TestActivity.class);

startActivity(intent);

//startService(intent);

-- In differenct application

Intent intent = new Intent();

intent.setClassName("com.china.testapp", "com.china.testapp.TestActivity");

startActivity(intent);

//startService(intent);

2. Implicit intent:

Intent intent = new Intent("com.china.testapp.MYACTION");

startActivity(intent);

//startService(intent);

--OR

Intent intent = new Intent();

intent.setAction("com.china.testapp.MYACTION");

startActivity(intent);

//startService(intent);

--API reference:

public Intent (String action)

Create an intent with a given action. All other fields (data, type, class) are null. Note that the action must be in a namespace because Intents are used globally in the system -- for example the system VIEW action is android.intent.action.VIEW; an application's custom action would be something like com.google.app.myapp.CUSTOM_ACTION.