获取LayoutInflater的方法有如下三种:
LayoutInflater inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.main, null);
LayoutInflater inflater = LayoutInflater.from(context); (该方法实质就是第一种方法，可参考源代码)
View layout = inflater.inflate(R.layout.main, null);
LayoutInflater inflater = getLayoutInflater();（在Activity中可以使用，实际上是View子类下window的一个函数）
View layout = inflater.inflate(R.layout.main, null);
使用方法：
publicclassMyInflate extendsActivity{
privateTextView tv;
publicvoidOnCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
//tv = (TextView) findViewById(R.id.tv);
LayoutInflater inflate = LayoutInflater.from(this);
View view = inflate.inflate(R.layout.main,null);
setContentView(view);
}
}
