Log a problem with a particular SB. NestedScrollView nested LinearLayout cannot scroll.
The viewpager nested layout was used in the initial project, and LinearLayout could not be scrolled. I thought that the event distribution viewpager will consume the sliding time.
By prohibiting left and right swipes and calculating up and down gestures, LinearLayout still cannot scroll.
Original code:
<?xml version="1.0" encoding="utf-8"?>
<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg"
android:orientation="vertical"
android:scrollbars="vertical">
<LinearLayout
android:id="@+id/custom_func_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="1px"
android:paddingBottom="1px">
<LinearLayout
android:id="@+id/custom_func_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/system_func_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="1px"
android:paddingBottom="1px">
<LinearLayout
android:id="@+id/system_func_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1px"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:background="@color/bg" />
<View
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="@color/white" />
<View
android:layout_width="match_parent"
android:layout_height="10dp"
android:background="@color/bg" />
<View
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="@color/white" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="@dimen/top_bar_height"
android:background="@color/white"
android:gravity="center"
android:orientation="horizontal"
android:paddingLeft="15dp"
android:paddingRight="15dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:ellipsize="end"
android:gravity="center_vertical"
android:singleLine="true"
android:text="跟进方式"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@+id/tv_task_info_follow"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="15dp"
android:background="@drawable/shape_storke_black_w_3"
android:gravity="center_vertical"
android:paddingLeft="15dp"
android:text="请选择" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="10dp"
android:background="@color/white" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:orientation="horizontal"
android:padding="15dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:ellipsize="end"
android:paddingTop="15dp"
android:singleLine="true"
android:text="跟进记录"
android:textColor="@color/black"
android:textSize="16sp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:background="@drawable/shape_storke_black_w_3">
<EditText
android:id="@+id/tv_task_info_record"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/edit_text_sms"
android:gravity="left"
android:hint="输入跟进记录情况"
android:maxLength="300"
android:minHeight="150dp"
android:padding="15dp"
android:text=""
android:textColor="@color/black"
android:textColorHint="@color/black_99"
android:textSize="18sp" />
<TextView
android:id="@+id/tv_num"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@id/tv_task_info_record"
android:layout_alignBottom="@id/tv_task_info_record"
android:padding="15dp"
android:text="0/300"
android:textColor="@color/black_99"
android:textSize="12sp" />
</RelativeLayout>
</LinearLayout>
<Button
android:id="@+id/btn_save"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="60dp"
android:layout_marginRight="30dp"
android:background="@color/blue"
android:text="@string/save"
android:textColor="@color/white"
android:textSize="18sp" />
<Button
android:id="@+id/btn_change"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="30dp"
android:layout_marginRight="30dp"
android:layout_marginBottom="50dp"
android:background="@color/blue"
android:text="转为我的客户"
android:textColor="@color/white"
android:textSize="18sp" />
</LinearLayout>
</androidx.core.widget.NestedScrollView>
after modification
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg"
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="match_parent"
android:background="@color/bg"
android:orientation="vertical"
android:scrollbars="vertical">
<LinearLayout
android:id="@+id/custom_func_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="1px"
android:paddingBottom="1px">
<LinearLayout
android:id="@+id/custom_func_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/system_func_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="1px"
android:paddingBottom="1px">
<LinearLayout
android:id="@+id/system_func_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1px"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:background="@color/bg" />
<View
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="@color/white" />
<View
android:layout_width="match_parent"
android:layout_height="10dp"
android:background="@color/bg" />
<View
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="@color/white" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="@dimen/top_bar_height"
android:background="@color/white"
android:gravity="center"
android:orientation="horizontal"
android:paddingLeft="15dp"
android:paddingRight="15dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:ellipsize="end"
android:gravity="center_vertical"
android:singleLine="true"
android:text="跟进方式"
android:textColor="@color/black"
android:textSize="16sp" />
<TextView
android:id="@+id/tv_task_info_follow"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:layout_marginLeft="15dp"
android:background="@drawable/shape_storke_black_w_3"
android:gravity="center_vertical"
android:paddingLeft="15dp"
android:text="请选择" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="10dp"
android:background="@color/white" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:orientation="horizontal"
android:padding="15dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:ellipsize="end"
android:paddingTop="15dp"
android:singleLine="true"
android:text="跟进记录"
android:textColor="@color/black"
android:textSize="16sp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:background="@drawable/shape_storke_black_w_3">
<EditText
android:id="@+id/tv_task_info_record"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/edit_text_sms"
android:gravity="left"
android:hint="输入跟进记录情况"
android:maxLength="300"
android:minHeight="150dp"
android:padding="15dp"
android:text=""
android:textColor="@color/black"
android:textColorHint="@color/black_99"
android:textSize="18sp" />
<TextView
android:id="@+id/tv_num"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="@id/tv_task_info_record"
android:layout_alignBottom="@id/tv_task_info_record"
android:padding="15dp"
android:text="0/300"
android:textColor="@color/black_99"
android:textSize="12sp" />
</RelativeLayout>
</LinearLayout>
<Button
android:id="@+id/btn_save"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="60dp"
android:layout_marginRight="30dp"
android:background="@color/blue"
android:text="@string/save"
android:textColor="@color/white"
android:textSize="18sp" />
<Button
android:id="@+id/btn_change"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"
android:layout_marginTop="30dp"
android:layout_marginRight="30dp"
android:layout_marginBottom="50dp"
android:background="@color/blue"
android:text="转为我的客户"
android:textColor="@color/white"
android:textSize="18sp" />
</LinearLayout>
</androidx.core.widget.NestedScrollView>
</LinearLayout>NestedScrollView is written in the root directory. That's right, it's that mentally handicapped. I hereby record it, if similar situations occur in the future, cut the chicken live!