Text view losing characters that is to be displayed [Android]

Question

I have a text to be displayed in a text view. The text contains 200 lines of data, each line is having 10 characters. So total 2000 characters . The text view is inside a vertical scrollable view. The first 50 lines are not getting displayed . If the text view had a limitation to the number of characters, then its fair enough if it loses the last few lines, but why is it taking off the head?? . And also what is the limit on the number of characters for a text view??

My code:

<ScrollView
        android:id="@+id/scroll_layout_ECG"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/btn_ECG"
        android:layout_alignLeft="@+id/btn_ECG"
        android:layout_alignStart="@+id/btn_ECG"
        android:layout_marginBottom="16dp"
        android:layout_marginTop="16dp" >

        <TextView
            android:id="@+id/tvECG_samples"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center"
            android:hint="ECG\nsamples"
            android:textSize="25sp" />
    </ScrollView>

In the 1st screen shot, the data is being shown from 51st line. The first 50 lines are clipped off. Why??

Answer 1

no need of external scrollbar rather than u can use textview's property

                   android:scrollbars="vertical"

I think It will help u