LinearLayout achartengine Chart not displaying in ScrollView

Question

I'm trying to create an achartengine chart within a scrollview but it won't display! It just shows a black screen, but doesn't crash or anything. The thing is if I just change my tag to the chart displays just fine. And in my Java code I do have renderer.setInScroll(true); for the charts renderer. Is this an issue with my xml?

Here is my xml:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

    <LinearLayout
    android:layout_height="wrap_content"
    android:layout_width="fill_parent"
    android:orientation="vertical" >

        <LinearLayout
        android:id="@+id/trendchart"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" />
    </LinearLayout>

</ScrollView>

(Currently the only thing in the ScrollView is the chart I plan to add more elements to make scrolling necessary, I just want it to display first)

Also I have tried to display it both with and without the wrapping linearlayout and it is the same result.

score 10 · Accepted Answer · answered Jul 23 '12 at 19:50

10

Under the scrollview you have to insert

android:fillViewport="true"

answered Jul 23 '12 at 19:50

VinC

447
1
7
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1

But then after I put this the scollview is not scrolling – Dec 22 '14 at 03:38

score 6 · Answer 2 · answered Jul 24 '12 at 06:53

6

You will also have to do the following call, otherwise there will be display issues:

renderer.setInScroll(true);

answered Jul 24 '12 at 06:53

Dan D.

32,246
5
63
79

score 2 · Answer 3 · answered Feb 08 '13 at 17:35

Other solution is to give a size for your LinearLayout @+id/trendchart:

for example:

<LinearLayout
        android:id="@+id/trendchart"
        android:layout_width="fill_parent"
        android:layout_height="180dp"
        android:orientation="vertical" />
    </LinearLayout>

works fine for me.

score 1 · Answer 4 · answered Nov 29 '13 at 09:00

I've tried the accepted answers but none of them work for me. I solved my problem by adding

chartView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, 500));

But don't use
chartView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
because for some reason it still not displaying the chart. Hope that will help someone

LinearLayout achartengine Chart not displaying in ScrollView

4 Answers4

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