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POSpinner to String to Intent to Array . Why won't this Intent work?
 

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    <p>Why won't the intent work properly? MainActivity is a graph that originally plotted one of the lines from an array (series1Numbers).I have another class (Main2Activity) with a spinner that i would like to have populate the (series1numbers) Array in MainActivity thereby generating my graph. Currently the graph line for (series1numbers) is blank which makes alot of sense because i have not been able to figure out how to populate it with the single number from (Main2Activity). I have searched and searched and not been able to connect the dots for this issue.</p> <p>Main Activity.java</p> <pre><code>package com.example; import java.util.Arrays; import android.app.Activity; import android.content.Intent; import android.graphics.Color; import android.os.Bundle; import com.androidplot.series.XYSeries; import com.androidplot.xy.LineAndPointFormatter; import com.androidplot.xy.SimpleXYSeries; import com.androidplot.xy.XYPlot; /** * The simplest possible example of using AndroidPlot to plot some data. */ public class MainActivity extends Activity { private XYPlot mySimpleXYPlot; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Intent intename = getIntent(); String name = (String) intename.getSerializableExtra("series1Numbers"); // initialize our XYPlot reference: mySimpleXYPlot = (XYPlot) findViewById(R.id.mySimpleXYPlot); // Create a couple arrays of y-values to plot: Number[] series1Numbers ={name}; Number[] series2Numbers = {-4, -4, -5, -4, -4, -4, -3, -7, -4, -2, -4, -5, -5, -5}; // Turn the above arrays into XYSeries': XYSeries series1 = new SimpleXYSeries(Arrays.asList(series1Numbers), // SimpleXYSeries takes a List so turn our array into a List SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, // Y_VALS_ONLY means use the element index as the x value "Series1"); // Set the display title of the series // same as above XYSeries series2 = new SimpleXYSeries(Arrays.asList(series2Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Series2"); // Create a formatter to use for drawing a series using LineAndPointRenderer: LineAndPointFormatter series1Format = new LineAndPointFormatter( Color.rgb(0, 200, 0), // line color Color.rgb(0, 100, 0), // point color null); // fill color (none) // add a new series' to the xyplot: mySimpleXYPlot.addSeries(series1, series1Format); // same as above: mySimpleXYPlot.addSeries(series2, new LineAndPointFormatter(Color.rgb(0, 0, 200), Color.rgb(0, 0, 100), null)); // reduce the number of range labels mySimpleXYPlot.setTicksPerRangeLabel(3); // by default, AndroidPlot displays developer guides to aid in laying out your plot. // To get rid of them call disableAllMarkup(): mySimpleXYPlot.disableAllMarkup(); </code></pre> <p>}</p> <p>Main2Activity.java</p> <pre><code>package com.example; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.TextView; import android.widget.AdapterView.OnItemSelectedListener; public class Main2Activity extends Activity implements OnItemSelectedListener { //TextView series1Numbers ; Spinner spin; String[] series1Numbers = { "-1", "-2", "-3", "-4", "-5", "-6", "-7", "-8" , "-9" , "-10" }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main2); //series1Numbers = (TextView) findViewById(R.id.series1Numbers ); Spinner spin = (Spinner) findViewById(R.id.spinner); spin.setOnItemSelectedListener(this); ArrayAdapter&lt;String&gt; aa = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_spinner_item, series1Numbers); spin.setAdapter(aa); } @Override public void onItemSelected(AdapterView&lt;?&gt; parent, View v, int position, long id) { // TODO Auto-generated method stub // series1Numbers .setText(items[position]); if (position == 1){ Intent intentObj = new Intent(Main2Activity.this, MainActivity.class); intentObj.putExtra("series1Numbers", series1Numbers); startActivity(intentObj); } } </code></pre>
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