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POHow to Add Views to the Scroll View in Android?
 

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  1. POHow to Add Views to the Scroll View in Android?
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    <p>I create the following code to create the Bar Chart and Pie Chart using Canvas.</p> <p>Here is my code</p> <pre><code>public class ChartDemo extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //ScrollView sv = new ScrollView(this); LinearLayout llay = new LinearLayout(this); llay.setOrientation(LinearLayout.VERTICAL); float[] values = { 50, 100, 50, 20, 30, 60, 100, 90 }; // Bar Chart BarGraph BarChart = new BarGraph(this, values); llay.addView(BarChart); //Pie Chart PieChartView Pie = new PieChartView(this, values); llay.addView(Pie); //sv.addView(llay); setContentView(llay); //setContentView(sv); } } </code></pre> <p>The above code show the BarChart only. I change my code like the following it gives the Black(blank)Screen only.With out no error and exception</p> <pre><code> public class ChartDemo extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ScrollView sv = new ScrollView(this); LinearLayout llay = new LinearLayout(this); llay.setOrientation(LinearLayout.VERTICAL); float[] values = { 50, 100, 50, 20, 30, 60, 100, 90 }; // Bar Chart BarGraph BarChart = new BarGraph(this, values); llay.addView(BarChart); //Pie Chart PieChartView Pie = new PieChartView(this, values); llay.addView(Pie); sv.addView(llay); setContentView(sv); } } </code></pre> <p>And i create my Chart Views like the following </p> <pre><code>public class PieChartView extends View { private float[] Values; public PieChartView(Context context, float[] Values) { super(context); this.Values = Values; } protected void onDraw(Canvas canvas) { super.onDraw(canvas); ....... ......... } } </code></pre> <p>I need to add both chart in Single Screen with Scroll View . But i am not able to add Both in the single Activity.How to do this ?? </p>
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    1. PTQuestion
    1. USKarthick Ramu
    1. USKarthick Ramu
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      1. POHow to Add Views to the Scroll View in Android?
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    1. COCould you elaborate a bit more what you mean by "not able". DO you get some error or are they not showing up at all / correctly?
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      1. POHow to Add Views to the Scroll View in Android?
      1. USJuhani
    2. COWhen i add LinearLayout in to a ScrollView i got the Black Screen Only sv.addView(llay); setContentView(sv);
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      1. POHow to Add Views to the Scroll View in Android?
      1. USKarthick Ramu
 

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