与CollapsingToolbarLayout嵌套使用，上下滑动冲突

[xiliangxiaoke]

与CollapsingToolbarLayout嵌套使用，CollapsingToolbarLayout中有可折叠控件，上下滑动冲突

[xiliangxiaoke]

when springView work with AppbarLayout and CollapsingToolbarLayout . have the problem when pull down with springView refresh. I found a solution:

`public class MainActivity extends AppCompatActivity implements AppBarLayout.OnOffsetChangedListener {

...  

@Override  
public void onOffsetChanged(AppBarLayout appBarLayout, int i) {  
    swipeRefreshLayout.setEnabled(i == 0);  
}  

@Override  
     protected void onResume() {  
    super.onResume();  
    app_bar.addOnOffsetChangedListener(this);  
}  

@Override  
protected void onPause() {  
    super.onPause();  
    app_bar.removeOnOffsetChangedListener(this);  
}  

...  

} `

if springView is used in fragment with viewPager, I save appBarLayout in Application. and override setUserVisibleHint to control the appBarLayout's OnOffsetChangedListener. Like this:

public class NewsLinearListFragment extends Fragment implements AppBarLayout.OnOffsetChangedListener{ ..... @Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); LogEx.L("setUserVisibleHint---"+isVisibleToUser+mParam1);

    /**
     * 这段代码是为了解决springview 和tabBarLayout中嵌套时上下滚动冲突
     */
    if(isVisibleToUser && this.getContext()!=null){
        MyApplication application = (MyApplication) this.getContext().getApplicationContext();
        if(application.appBarLayout!=null){
            application.appBarLayout.addOnOffsetChangedListener(this);
        }else if (isVisibleToUser && this.getContext() == null) {
        //viewpager中第一页加载的太早,getContext还拿不到,做个延迟
        new Handler().post(new Runnable() {

            @Override
            public void run() {
                try {
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                if (NewsLinearListFragment.this.getContext() != null) {

                    MyApplication application = (MyApplication) NewsLinearListFragment.this.getContext().getApplicationContext();
                    if (application.appBarLayout != null) {
                        application.appBarLayout.addOnOffsetChangedListener(NewsLinearListFragment.this);
                    }
                }
            }
        });
    }
    }
}

...... @Override public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) { LogEx.L("#######onOffsetChanged"+mParam1); springView.setEnable(verticalOffset==0); }