LayoutInflater作用是将layout的xml布局文件实例化为View类对象。
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:
publicclass MyInflate extendsActivity{ privateTextView tv; publicvoid OnCreate(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); }}