看到了Android版知乎实现了这种效果,就自己也实现了一下。
使用这个效果,不用另外再加loading了。
实现方式:
方法一
①在onWindowFocusChanged()方法中,设置为刷新状态为true
@Override public void onWindowFocusChanged(boolean hasFocus) { super.onWindowFocusChanged(hasFocus); mSwipeRefreshLayout.setRefreshing(true); }
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②在获取数据完成后,设置刷新状态为false
if (mSwipeRefreshLayout.isRefreshing()) { mSwipeRefreshLayout.setRefreshing(false); }
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方法二
①调用mSwipeRefreshLayout.measure()方法后,设置刷新状态为true
//手动调用,通知系统去测量 mSwipeRefreshLayout.measure(0,0); mSwipeRefreshLayout.setRefreshing(true);
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②在获取数据完成后,设置刷新状态为false
if (mSwipeRefreshLayout.isRefreshing()) { mSwipeRefreshLayout.setRefreshing(false); }
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方法三
①在view.post(new Runnable)方法中设置刷新状态为true
mSwipeRefreshLayout.post(new Runnable() { @Override public void run() { Log.i("getMeasuredHeight",mSwipeRefreshLayout.getMeasuredHeight()+""); mSwipeRefreshLayout.setRefreshing(true); } });
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②在获取数据完成后,设置刷新状态为false
if (mSwipeRefreshLayout.isRefreshing()) { mSwipeRefreshLayout.setRefreshing(false); }
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方法四
①使用ViewTreeObserver
ViewTreeObserver obeser=mSwipeRefreshLayout.getViewTreeObserver(); obeser.addOnWindowFocusChangeListener(new ViewTreeObserver.OnWindowFocusChangeListener() { @Override public void onWindowFocusChanged(boolean hasFocus) { mSwipeRefreshLayout.setRefreshing(true); Log.i("11getMeasuredHeight",mSwipeRefreshLayout.getMeasuredHeight()+""); } });
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②在获取数据完成后,设置刷新状态为false
if (mSwipeRefreshLayout.isRefreshing()) { mSwipeRefreshLayout.setRefreshing(false); }
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说明:
每种方法的第一步,都是为了保证SwipeRefreshLayout绘制完成,再调用方法显示刷新球,否则界面比较的复杂的时候,刷新球会不显示。