首页 > 移动开发 > LayoutInflater作用是将layout的xml布局文件实例化为View类对象。

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:

 

public class MyInflate extends Activity{
    private TextView tv;
    public void 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);
    }
}

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