Why is my Android Scrollview not scrolling?

问题

For some reason scrolling is not getting activated. I want to have that black place cover half the screen also. But if I change that height of ScrollView to wrap content then this black space disappears.

This black space will have photo thats why I need it to cover at least half.

I used layout weight for it but because the pictures are dynamicly loaded I have to reserve the space. Currently in this code it reserves half of the screen but Scrool does not get activated and other items are not visible.

 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:custom="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/scrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#e0e0e0"
android:fadeScrollbars="false"
android:fillViewport="true"
tools:context="com.example.Test.MainActivity">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#e0e0e0"
    android:orientation="vertical"
    android:weightSum="4">


    <LinearLayout
        android:id="@+id/level1"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="2"
        android:background="#e0e0e0"
        android:orientation="vertical">

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"

            android:background="@color/vk_white">


            <android.support.v4.view.ViewPager
                android:id="@+id/pager"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"

                android:background="@color/black"
                android:scaleType="fitXY" />


        </FrameLayout>


    </LinearLayout>

    <LinearLayout
        android:id="@+id/level2"
        android:layout_width="match_parent"
        android:layout_height="0dp"

        android:layout_weight="2"
        android:background="@color/vk_white"
        android:orientation="vertical">

        <TextView
            android:id="@+id/temelBilgilerInfo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="18dp"
            android:text="@string/temelbilgileriinfo"
            android:textColor="@android:color/black"
            android:textSize="20dp" />

        <View
            android:id="@+id/layout_root"
            android:layout_width="fill_parent"
            android:layout_height="1dip"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_below="@+id/temelBilgilerInfo"
            android:background="@drawable/ruhesi_lines" />

        <EditText
            android:id="@+id/birthday_edit"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/layout_root"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit1"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit2"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit1"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit3"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit2"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit4"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit3"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday1"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit5"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit4"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday123213"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit7"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit6"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit8"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit7"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />
        android:gravity="center_horizontal"/>

        <EditText
            android:id="@+id/birthday_edit9"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit8"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit10"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit9"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit11"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit10"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit12"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit11"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit13"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit12"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter asd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


    </LinearLayout>


</LinearLayout>
</ScrollView>

Not working

回答1:

Answer is also located:

ScrollView with two views, first view filling screen

What I did was to programmaticly arrange that space for the pager. This part of the other answer was useful for me.

    layout = (LinearLayout)findViewById(R.id.linlayout);
        f1=(FrameLayout) findViewById(R.id.f1);
        f2=(FrameLayout) findViewById(R.id.f2);
        ViewTreeObserver vto = layout.getViewTreeObserver(); 
        vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() { 
            @Override 
            public void onGlobalLayout() { 
                layout.getViewTreeObserver().removeGlobalOnLayoutListener(this); 
                int width  = layout.getMeasuredWidth();
                int height = layout.getMeasuredHeight(); 

                f1.setLayoutParams(new LayoutParams(width, height));
                f2.setLayoutParams(new LayoutParams(width, height));
            } 
        });

回答2:

i check your xml layout and I see that you don't close the ScrollView Correctly.

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#e0e0e0"
    android:orientation="vertical"
       >
            <android.support.v4.view.ViewPager
                android:id="@+id/pager"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:scaleType="fitXY" />

        <TextView
            android:id="@+id/temelBilgilerInfo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentTop="true"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="18dp"

            android:textColor="@android:color/black"
            android:textSize="20dp" />

        <View
            android:id="@+id/layout_root"
            android:layout_width="fill_parent"
            android:layout_height="1dip"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_below="@+id/temelBilgilerInfo"
            />

        <EditText
            android:id="@+id/birthday_edit"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/layout_root"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit1"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit2"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit1"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit3"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit2"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit4"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit3"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday1"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit5"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit4"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthday123213"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />

        <EditText
            android:id="@+id/birthday_edit7"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit6"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit8"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit7"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />
        android:gravity="center_horizontal"/>

        <EditText
            android:id="@+id/birthday_edit9"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit8"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit10"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit9"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit11"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit10"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit12"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit11"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter Birthdayasdasdasd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />


        <EditText
            android:id="@+id/birthday_edit13"
            android:layout_width="250dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/birthday_edit12"
            android:layout_centerHorizontal="true"
            android:layout_centerInParent="true"
            android:ellipsize="start"
            android:ems="10"
            android:gravity="center_horizontal"
            android:hint="Enter asd"
            android:inputType="date"
            android:textColor="#000000"
            android:textColorHint="#DDAAAAAA" />
</LinearLayout>

</ScrollView>

this code goes inside your Scrollview hope it helps!!!!!!!!!

来源：https://stackoverflow.com/questions/35209107/why-is-my-android-scrollview-not-scrolling