chenshiqiang1202 / CsqSwipeRefreshLayout

参考google的SwipeRefreshLayout，开发的一个可以自定义刷新界面的layout

CsqSwipeRefreshLayout

参考google的SwipeRefreshLayout，开发的一个可以自定义刷新界面的layout，支持AdapterView、ScrollView。

此控件已经有一个更好的实现： android-Ultra-Pull-to-Refresh：https://github.com/liaohuqiu/android-Ultra-Pull-To-Refresh 此控件考虑的方面更全面。

CsqSwipeRefreshLayout使用步骤：

1、implements ISwipeRefresh自定义一个顶部刷新的View，View的高度即为刷新的阀值，即下拉View的高度的距离，就会触发刷新：

public class SwipeRefreshHeader extends FrameLayout implements ISwipeRefresh {

// ------------------------ Constants ------------------------


// ------------------------- Fields --------------------------

private ImageView mArrowImageView;
private ProgressBar mProgressBar;
private TextView mHintTextView;
private View lyRefreshTime;
private TextView tvRefreshTime;
private Animation mRotateUpAnim;
private Animation mRotateDownAnim;

private LoadingStatus mState = LoadingStatus.STATE_NORMAL;

private final int ROTATE_ANIM_DURATION = 180;

// ----------------------- Constructors ----------------------

public SwipeRefreshHeader(Context context) {
    super(context);
    initView(context);
}

public SwipeRefreshHeader(Context context, AttributeSet attrs) {
    super(context, attrs);
    initView(context);
}


// -------- Methods for/from SuperClass/Interfaces -----------

@Override
public View getView() {
    return this;
}

@Override
public void setTriggerPercentage(float percent) {

}

@Override
public void changeLoadingStatus(LoadingStatus status) {
    setState(status);
}

@Override
public void setRefreshTime(long time) {
    if(lyRefreshTime.getVisibility() != View.VISIBLE){
        lyRefreshTime.setVisibility(View.VISIBLE);
    }
    tvRefreshTime.setText(DateUtil.formatTimeSimple(time));
}

// --------------------- Methods public ----------------------


// --------------------- Methods private ---------------------

private void initView(Context context) {
    // 初始情况，设置下拉刷新view高度为0
    LayoutInflater.from(context).inflate(
            R.layout.view_swipe_refresh_header, this, true);

    mArrowImageView = (ImageView)findViewById(R.id.xlistview_header_arrow);
    mHintTextView = (TextView)findViewById(R.id.xlistview_header_hint_textview);
    mProgressBar = (ProgressBar)findViewById(R.id.xlistview_header_progressbar);
    lyRefreshTime = findViewById(R.id.lyRefreshTime);
    lyRefreshTime.setVisibility(View.GONE);
    tvRefreshTime = (TextView)findViewById(R.id.tvRefreshTime);

    mRotateUpAnim = new RotateAnimation(0.0f, -180.0f,
            Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
            0.5f);
    mRotateUpAnim.setDuration(ROTATE_ANIM_DURATION);
    mRotateUpAnim.setFillAfter(true);

    mRotateDownAnim = new RotateAnimation(-180.0f, 0.0f,
            Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
            0.5f);
    mRotateDownAnim.setDuration(ROTATE_ANIM_DURATION);
    mRotateDownAnim.setFillAfter(true);
}

private void setState(LoadingStatus state) {
    if (state == mState) return ;

    if (state == LoadingStatus.STATE_LOADING) {	// 显示进度
        mArrowImageView.clearAnimation();

        mArrowImageView.setVisibility(View.INVISIBLE);
        mProgressBar.setVisibility(View.VISIBLE);
    } else {	// 显示箭头图片
        mArrowImageView.setVisibility(View.VISIBLE);
        mProgressBar.setVisibility(View.INVISIBLE);
    }

    switch(state){
        case STATE_NORMAL:
            if (mState == LoadingStatus.STATE_READY) {
                mArrowImageView.startAnimation(mRotateDownAnim);
            }
            if (mState == LoadingStatus.STATE_LOADING) {
                mArrowImageView.clearAnimation();
            }
            mHintTextView.setText(R.string.swiperefresh_header_hint_normal);
            break;
        case STATE_READY:
            if (mState != LoadingStatus.STATE_READY) {
                mArrowImageView.clearAnimation();
                mArrowImageView.startAnimation(mRotateUpAnim);
                mHintTextView.setText(R.string.swiperefresh_header_hint_ready);
            }
            break;
        case STATE_LOADING:
            mHintTextView.setText(R.string.swiperefresh_header_hint_loading);
            break;
        default:
            break;
    }


    mState = state;
}

// --------------------- Getter & Setter ---------------------


// --------------- Inner and Anonymous Classes ---------------


// --------------------- logical fragments -------------------

}

2、布局中定义HeadView及TargetView：

<csq.github.swiperefresh.CsqSwipeRefreshLayout android:id="@+id/lySwipeRefresh" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@null" app:IdContentView="@+id/lvList" app:IdHeaderView="@+id/vSwipeHeader">

    <csq.github.swiperefresh.SwipeRefreshHeader
            android:id="@+id/vSwipeHeader"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            />

    <ListView
            android:id="@+id/lvList"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@null"
            android:cacheColorHint="@android:color/transparent"
            android:listSelector="@android:color/transparent"
            />

</csq.github.swiperefresh.CsqSwipeRefreshLayout>

3、设置刷新回调OnRefreshListener：

lySwipeRefresh.setOnRefreshListener(refreshListener);

private CsqSwipeRefreshLayout.OnRefreshListener refreshListener = new CsqSwipeRefreshLayout.OnRefreshListener() { @Override public void onRefresh() { pageLoader.loadFirstPage(); } };

4、根据数据刷新加载状态，更新界面：

private DataLoadListener dataLoadListener = new DataLoadListener() { @Override public void loadPre(int page) { loadNextPageView.setStatus(PageLoadStatus.Loading); }

    @Override
    public void loadSuccess(List<TestData> newDatas) {
        lySwipeRefresh.setRefreshing(false);
        lySwipeRefresh.setRefreshTime(System.currentTimeMillis());
        loadNextPageView.setStatus(PageLoadStatus.Finished);

        adapter.updateData(newDatas);
    }

    @Override
    public void loadFinish(List<TestData> newDatas) {
        lySwipeRefresh.setRefreshing(false);
        lySwipeRefresh.setRefreshTime(System.currentTimeMillis());
        loadNextPageView.setStatus(PageLoadStatus.LoadedAll);

        adapter.updateData(newDatas);
    }

    @Override
    public void loadFailed(String error) {
        lySwipeRefresh.setRefreshing(false);
        loadNextPageView.setStatus(PageLoadStatus.Finished);

        ToastUtil.showInfo(ListViewTestActivity.this, "加载失败", false);
    }
};

暂时此控件还不算特别完善，欢迎交流！