Android - 原生下拉刷新功能(SwipeRefreshLayout)

• 使用场景

鉴于公司内部要求,禁止使用第三方控件,所以使用android原生刷新控件

• 遇到的问题

1.刷新控件SwipeRefreshLayout与首页控件CoordinatorLayout产生冲突

具体实现

一、xml代码(未解决冲突之前的代码)

二、java代码

public class RefreshActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener {

    @BindView(R.id.main_refresh)
    SwipeRefreshLayout mMainRefresh;
    @BindView(R.id.refresh_btn)
    Button mRefreshBtn;
    private boolean isRefresh = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_refresh);
        ButterKnife.bind(this);

        mMainRefresh.setOnRefreshListener(this);
    }

    @Override
    public void onRefresh() {
        if (!isRefresh) {
            isRefresh = true;
            mRefreshBtn.setText("刷新成功");
            mMainRefresh.setRefreshing(false);
            isRefresh = false;
        }
    }
}

三、解决滑动冲突xml代码修改

• 修改方式

将布局内的LinearLayout替换成CoordinatorLayout

// 判断AppBarLayout是否为展开状态,如果状态为展开,则进行下拉刷新动作
// 添加APPBarLayout状态监听
mAppBar.addOnOffsetChangedListener(mOnOffsetChangedListener);

private AppBarLayout.OnOffsetChangedListener mOnOffsetChangedListener = new AppBarLayout.OnOffsetChangedListener() {
        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int i) {
            if (i == 0) {
                if (mState != ToolbarLayoutState.EXPANDED) {
                    // 展开
                    mState = ToolbarLayoutState.EXPANDED;
                    mRefreshLayout.setEnabled(true);
                }
            } else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
                if (mState != ToolbarLayoutState.COLLAPSED) {
                    //  关闭
                    mState = ToolbarLayoutState.COLLAPSED;
                    mRefreshLayout.setEnabled(false);
                }
            } else {
                if (mState != ToolbarLayoutState.INTERNEDIATE) {
                    mState = ToolbarLayoutState.INTERNEDIATE;
                }
            }
        }
    };