inflate, findViewById与setContentView的差别与联系

protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_news_content);

		viewFlipperNewsUi = (ViewFlipper) findViewById(R.id.viewflipper_news_ui);
		inflater = getLayoutInflater();
		View rLNewsUi = inflater.inflate(R.layout.news_body, null);
		viewFlipperNewsUi.addView(rLNewsUi);

	}

1、inflate是用来找layout下布局文件，并实例化；而findViewById是找布局文件下的详细widget。

2、setContentView()一旦调用, layout就会立马显示UI；而inflate仅仅会把Layout形成一个以view类实现成的对象，有须要时再用setContentView(view)显示出来。