2015.01.16 Android Error Set (1)

The first method in 1.MainActivity

protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview ( R.layout.main); Findviewbyid (R.id.btn01). Setonclicklistener (this);}

If you don't add Findviewbyid, There's no response to any of the buttons on the interface. 2. The above Findviewbyid if the back bracket is only (R.ID.BTN01) run when only Btn01 reaction the rest of the button is not responding 3.androidmanifest.xml, the activity tag has an Android : Name= "Com.example.test.xxx", if the name of XXX here is not on the number, even if the compilation is not a problem can not run out, will be displayed on the simulator "Sorry ... force close"

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2015.01.16 Android Error Set (1)