android

android smartrefreshlayout 适配不同屏幕尺寸

小樊
81
2024-11-19 08:33:41
栏目: 编程语言

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:

  1. 在布局文件中声明SmartRefreshLayout和RecyclerView:
<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>
  1. 在Activity或Fragment中初始化SmartRefreshLayout和RecyclerView:
RecyclerView recyclerView = findViewById(R.id.recyclerView);
SmartRefreshLayout smartRefreshLayout = findViewById(R.id.smartRefreshLayout);
  1. 设置LayoutManager:
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
  1. 设置适配器:
MyAdapter adapter = new MyAdapter();
recyclerView.setAdapter(adapter);
  1. 设置SmartRefreshLayout的刷新和加载监听器:
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();
    }
});
  1. 为了使SmartRefreshLayout适配不同屏幕尺寸,我们需要在代码中动态设置其高度。可以使用以下方法获取屏幕尺寸:
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。

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