The method Inflate() in android

最新推荐文章于 2021-05-28 10:08:48 发布

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本文详细介绍了Android开发中Inflate()方法与findViewById()方法的区别，特别是在使用不同布局时如何正确应用这些方法。通过实例演示了如何在对话框布局中设置组件内容，并解释了ViewStub的‘隐藏膨胀’特性。

Inflate() method can find out a layout defined by xml,as like the findViewById() method,but there have some different between them.

The different are:

If your Activity used other layout,such as the dialog layout,and you want to set the component's content in that layout.you must use the inflate() method to find it out,then use the findViewById() method to find other components above it.such as:

View view1=View.inflate(this,R.layout.dialog_layout,null);  
　　  
　　TextViewdialogTV=(TextView)view1.findViewById(R.id.dialog_tv);  
　　  
　　dialogTV.setText("abcd");

note:R.id.dialog_tv is in dialog layout,if you direct to use the this.findViewById(R.id.diaog_tv),it will throw error.

View viewStub = ((ViewStub) findViewById(R.id.stubView)).inflate();

you can imagine it as "hidden inflation",hide placed in view,before inflate() just to find the control,but no size and didn't occupy place in the view.

after inflate(),it must have size,but hide.

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