在Android开发中,使用SmartRefreshLayout可以帮助我们轻松实现下拉刷新和上拉加载更多功能。为了使SmartRefreshLayout适配不同屏幕尺寸,我们需要考虑以下几点:
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical" />
<com.scwang.smartrefresh.layout.SmartRefreshLayout
android:id="@+id/smartRefreshLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
</com.scwang.smartrefresh.layout.SmartRefreshLayout>
RecyclerView recyclerView = findViewById(R.id.recyclerView);
SmartRefreshLayout smartRefreshLayout = findViewById(R.id.smartRefreshLayout);
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
MyAdapter adapter = new MyAdapter();
recyclerView.setAdapter(adapter);
smartRefreshLayout.setOnRefreshListener(new OnRefreshListener() {
@Override
public void onRefresh(RefreshLayout refreshLayout) {
// 在这里执行刷新操作
refreshLayout.finishRefreshing();
}
});
smartRefreshLayout.setOnLoadMoreListener(new OnLoadMoreListener() {
@Override
public void onLoadMore(RefreshLayout refreshLayout) {
// 在这里执行加载更多操作
refreshLayout.finishLoadMore();
}
});
public static int getScreenHeight(Context context) {
WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics displayMetrics = new DisplayMetrics();
windowManager.getDefaultDisplay().getMetrics(displayMetrics);
return displayMetrics.heightPixels;
}
然后,在Activity或Fragment的onCreate
方法中设置SmartRefreshLayout的高度:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
int screenHeight = getScreenHeight(this);
ViewGroup.LayoutParams layoutParams = smartRefreshLayout.getLayoutParams();
layoutParams.height = screenHeight - getSupportActionBar().getHeight() - (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 48, getResources().getDisplayMetrics());
smartRefreshLayout.setLayoutParams(layoutParams);
}
这样,SmartRefreshLayout就能根据屏幕尺寸自动调整高度,从而实现不同屏幕尺寸的适配。