1.RecyclerView
ViewHolder
Adapter
LayoutManager
ItemDecoration
.
.
.
当想通过ItemViewType的值来显示不同的内容时，先重写getItemViewType(int postion)，之后会将getItemViewType()的返回值写入onCreateViewHolder(parent, viewType)中作为参数。在onCreateViewHolder()方法中调用viewType即可。
2.Fragment
activity_fragment
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent">
</FrameLayout>
创建Fragment
public abstract class SingleFragmentActivity extends AppCompatActivity {
/*需要实现此抽象方法*/
protected abstract Fragment createFragment();
@LayoutRes
protected int getLayoutResId() {
return R.layout.activity_fragment;
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResId());
FragmentManager fm = getSupportFragmentManager();
Fragment fragment = fm.findFragmentById(R.id.fragment_container);
if (fragment == null) {
fragment = createFragment();
fm.beginTransaction()
.add(R.id.fragment_container, fragment)
.commit();
}
}
}
