ScrollView嵌套RecyclerView滾動衝突
1. 概述
使用ScrollView嵌套RecyclerView會造成滾動衝突。這個問題可以使用NestedScrollView來解決。
2.佈局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/rl_root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="5dp"
android:paddingRight="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="10dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top|left"
android:text="單號:" />
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rv_num"
android:layout_width="match_parent"
android:layout_height="200dp"
android:minHeight="20dp" />
</LinearLayout>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/black"
android:text="最多可上傳4張"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/black"
android:text="最多可上傳4張"/>
...
</LinearLayout>
</androidx.core.widget.NestedScrollView>
</LinearLayout>
3.MainActivity
public class MainActivity extends AppCompatActivity {
private RecyclerView mRV;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 運單號列表
mRV = (RecyclerView) findViewById(R.id.rv_num);
// 防止卡頓
mRV.setHasFixedSize(true);
mRV.setNestedScrollingEnabled(true);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
linearLayoutManager.setSmoothScrollbarEnabled(true);
// 取消recycleview的滑動
mRV.setLayoutManager(linearLayoutManager);
List<String> list = new ArrayList<>();
for(int i = 0; i < 30;i++){
list.add("020-88888"+i);
}
mRV.setAdapter(new RVAdapter(list));
}
}