ScrollView does not display its contents properly in lower versions of Android

Question

You can see that my scrollview displays the same in jellybean, and kitkat is very cool:

But I'm shocked to see the same thing in lower versions, such as 2.2, 2.3.3

It seems to display a piece of text attached to the top and bottom of the screen.

BTW, the lines in the middle are just text images with a gray background.

You can see my xml code, sorry its a bit long code

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/stars" android:padding="5dp" android:scrollbars="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <EditText android:id="@+id/editText1" android:layout_width="match_parent" android:layout_height="wrap_content" android:ems="10" android:textColor="#fff" android:hint="Type your Full Name here" android:inputType="textPersonName" android:digits="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz " > <requestFocus /> </EditText> <Button android:id="@+id/button1" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:background="#330000" android:onClick="showresult" android:textColor="#ffffff" android:alpha=".8" android:text="Show My Fortune" /> <TextView android:id="@+id/textView13" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceSmall" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:baselineAligned="false"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="horizontal" > <TextView android:id="@+id/textView1" android:layout_width="20dp" android:layout_height="wrap_content" android:textColor="#ffffff" android:textSize="18sp" /> <TextView android:id="@+id/textView2" android:layout_width="50dp" android:layout_height="wrap_content" android:textColor="#ffffff" android:textSize="18sp" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_weight="1" > <TextView android:id="@+id/textView3" android:layout_width="20dp" android:layout_height="wrap_content" android:textColor="#ffffff" android:textSize="18sp" /> <TextView android:id="@+id/textView4" android:layout_width="50dp" android:layout_height="wrap_content" android:textColor="#ffffff" android:textSize="18sp" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_weight="1" > <TextView android:id="@+id/textView5" android:layout_width="20dp" android:layout_height="wrap_content" android:textColor="#ffffff" android:textSize="18sp"/> <TextView android:id="@+id/textView6" android:layout_width="50dp" android:layout_height="wrap_content" android:textColor="#ffffff" android:textSize="18sp" /> </LinearLayout> </LinearLayout> <TextView android:id="@+id/textView7" android:layout_width="match_parent" android:layout_height=".5dp" android:textAppearance="?android:attr/textAppearanceSmall" /> <TextView android:id="@+id/textView8" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceSmall" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <TextView android:id="@+id/textView9" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#ffffff" /> <TextView android:id="@+id/textView14" android:layout_width="match_parent" android:layout_height="wrap_content" android:textColor="#ffffff" android:gravity="right" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <TextView android:id="@+id/textView10" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#ffffff" /> <TextView android:id="@+id/textView15" android:layout_width="match_parent" android:layout_height="wrap_content" android:textColor="#ffffff" android:gravity="right" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <TextView android:id="@+id/textView11" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textAppearance="?android:attr/textAppearanceLarge" android:textColor="#ffffff" /> <TextView android:id="@+id/textView16" android:layout_width="match_parent" android:layout_height="wrap_content" android:textColor="#ffffff" android:gravity="right" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> <TextView android:id="@+id/textView12" android:layout_width="match_parent" android:layout_height=".5dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/textView17" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView18" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="right" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> <TextView android:id="@+id/textView19" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceSmall" /> <TextView android:id="@+id/textView20" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ff0000" android:textAppearance="?android:attr/textAppearanceLarge" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <TextView android:id="@+id/textView21" android:layout_width="40dp" android:layout_height="wrap_content" android:gravity="right" android:textColor="#ff0000" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView27" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView22" android:layout_width="match_parent" android:layout_height="wrap_content" android:textColor="#ffff00" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="match_parent" android:orientation="horizontal" > <TextView android:id="@+id/textView23" android:layout_width="40dp" android:layout_height="wrap_content" android:textColor="#ff0000" android:gravity="right" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView28" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView24" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffff00" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/textView25" android:layout_width="40dp" android:layout_height="wrap_content" android:gravity="right" android:textColor="#ff0000" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView29" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView26" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffff00" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> </LinearLayout> </ScrollView> 

GraphicalLayout also shows this warning:

Hope I clearly explained my problem!

Looking for an answer

Thank you in advance

---

UPDATE . After @semsamot answered, the warning was gone, but the problem is still not resolved.

Sorry, my code above is too long, but I have a different layout in my application displaying the same problem

Consider this code:

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:background="@drawable/stars" tools:context="com.vivekwarde.numerologyfortune.MyLuckyNumber" > <ScrollView android:layout_width="match_parent" android:layout_height="wrap_content" android:scrollbars="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <Button android:id="@+id/button1" android:layout_width="match_parent" android:layout_height="60dp" android:textColor="#fff" android:gravity="center" android:onClick="showDatePickerDialog" android:text="Birthdate ?" android:background="#4c0000" /> <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="15dp" android:textColor="#ffffff" android:text="Large Text" android:textAppearance="?android:attr/textAppearanceLarge" /> <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Large Text" android:textColor="#ffffff" android:textAppearance="?android:attr/textAppearanceLarge" /> </LinearLayout> </ScrollView> </RelativeLayout> 

If I show this layout, it will display as expected in a jelly bean and kitkat, like this

But see this conclusion in 2.2 and 2.3.3

Why the text in the TextView does not display properly as expected.

Answer 1

Do not use float values ​​that are less than 1 in this format: ".x" Use this format instead: "0.x"

If you change these values, you will see that the warnings have disappeared!

Note: Also note that the alpha attribute, introduced at API level 11, will therefore not work in lower APIs (s).

Answer 2

I don't think this will work, but I have to try it once.

instead of using android:layout_height="60dp" use maxHeight and minHeight with the same 60dp as ur. I think he will solve your problem. And also fill in some background color to see what is wrong with soln.

Answer 3

Do not use wrap_content for ScrollView. ScrollView should have a specific size, which is related to the size of the screen, not the content. LinearLayout inside it should contain wrap_content. In both examples you should use match_parent for ScrollView

Answer 4

Do not use .5dp when setting height or width

 <TextView android:id="@+id/textView7" android:layout_width="match_parent" android:layout_height=".5dp" // **modify** this to android:layout_height="1dp" android:textAppearance="?android:attr/textAppearanceSmall" /> 

 <TextView android:id="@+id/textView12" android:layout_width="match_parent" android:layout_height=".5dp" // **modify** this to android:layout_height="1dp" /> 

With this feature you can remove this error requestfocus does not set the required layout_height attribute , and maybe you can also solve your problem