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POHow do I instantiate a class in android which is also an activity?
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  1. POHow do I instantiate a class in android which is also an activity?
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    copied!<p>In android, how can I create a <code>constructor</code> for a <code>class</code> which is also an <code>Activity</code>?</p> <p>My problem is, <p>I want to have two activity classes (estimateFare and Mapping) which both send data to a an activity class (<code>CalculateFare</code>). Mapping takes the data from real time network info, whereas estimateFare takes data from user input. I want <code>CalculateFare</code> to be able to use the data from either class to perform the calculation, although I have run into trouble with the <code>onCreate</code> method and the constructor for <code>CalculateFare</code>. When the class is called during runtime of the application I get the following message in the <code>LogCat</code>;</p> <pre><code>Unable to instantiate activity ComponentInfo. </code></pre> <p>A snippet from CalculateFare is as follows;</p> <pre><code> public class CalculateFare extends Activity { TextView t; static long length; static int dist; static int mMonth; static int mDay; public static double fare; double rate1 = 0, rate2a, rate2b, rate3, rate4a, rate4b; int remDist = 0; double remLength; private static int TTS_DATA_CHECK = 1; private TextToSpeech tts = null; private boolean ttsIsInit = false; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.fare); } public CalculateFare(long length, int dist, int mMonth, int mDay) { } public static void setLength(long l) { length = l; } public static void setDist(int d) { dist = d; } public static void setDate(int m, int d) { mMonth = m; mDay = d; } public void calc() { </code></pre> <p>Any Advice much appreciated</p>
 

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