[英]Hiding textView below toolbar in coordinator layout
我正在創建一個如下工作的布局:
工具欄在main_activity中,其他工具在另一個xml文件中
當我滾動時,我想將textView隱藏在頂部工具欄和recyclerView之間。
為什么不嘗試以下操作,可能會有所幫助
myRecyclerview.addOnScrollListener(new RecyclerView.OnScrollListener(){
@Override
public void onScrolled(RecyclerView rv, int dx, int dy) {
//boolean hasStarted = state == rv.SCROLL_STATE_DRAGGING; //Scrollbar is MOVING
//boolean hasEnded = state == rv.SCROLL_STATE_IDLE; //ScrollBar is NOT MOVING
//boolean isStopping = state == rv.SCROLL_STATE_SETTLING; //Scrollbar is STOPPING
if(dy > 0){
myTextview.setVisibility(View.VISIBLE);
}
}
});
這是主要活動
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
>
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<FrameLayout
android:id="@+id/toolbar_container"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="center"
app:titleMarginStart="10dp"
<com.miguelcatalan.materialsearchview.MaterialSearchView
android:id="@+id/search_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="textAutoCorrect"
app:searchBackIcon="@drawable/ic_back_arrow"
app:searchVoiceIcon="@drawable/ic_voice_black"
/>
</FrameLayout>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
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