Data Binding（二）

文章目录

1. 1. 在Fargment中使用
2. 2. 在GridView中使用

在Fargment中使用

<layout>
    <date>
        <variable
            name="user"
            type="io.github.seniorzhai.databindingdemo.model.PlainUser" />
    </date>
</layout>

在Fragment.java中

onCreateView() {
    ItemGridBinding binding = DataBindingUtil.inflate(inflater, R.layout.item_grid, container, false);
    PlainUser user = new PlainUser();
    user.name.set("SBBBBBBBB");
    user.age.set(111);
    binding.setUser(user);
    binding.getRoot().setBackgroundColor(RandomColor.getColor());
    return binding.getRoot();
}

https://github.com/SeniorZhai/DataBindingDemo/blob/master/app/src/main/java/io/github/seniorzhai/databindingdemo/BingdingFragment.java

在GridView中使用

主要的实现代码需要在Adapter的getView方法中实现

public View getView(int position,View convertView,ViewGroup parent) {
    if (convertView == null) {
        binding = DataBindingUtil.inflate(inflater,R.layout.item_grid,parent,false);
        convertView = binding.getRoot();
        convertView.setTag(binding);
    } else {
        binding = convertView.getTag();
    }
    binding.setVariable(BR.user,getItem(position));
    return converView;
} 

https://github.com/SeniorZhai/DataBindingDemo/blob/master/app/src/main/java/io/github/seniorzhai/databindingdemo/MyAdapter.java