A little proof of concept of getting current market version number for an app

marketcheck/.gitignore

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+*.class

marketcheck/make.sh

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+#!/bin/sh
+javac -classpath androidmarketapi-0.3.jar test.java

marketcheck/run.sh

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+#!/bin/sh
+java -classpath ".:androidmarketapi-0.3.jar" test $1 $2 $3

marketcheck/test.java

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+
+import java.io.FileOutputStream;
+
+import com.gc.android.market.api.MarketSession.Callback;
+import com.gc.android.market.api.MarketSession;
+import com.gc.android.market.api.model.Market.App;
+import com.gc.android.market.api.model.Market.AppsResponse;
+import com.gc.android.market.api.model.Market.AppsRequest;
+import com.gc.android.market.api.model.Market.CommentsRequest;
+import com.gc.android.market.api.model.Market.GetImageRequest;
+import com.gc.android.market.api.model.Market.GetImageResponse;
+import com.gc.android.market.api.model.Market.ResponseContext;
+import com.gc.android.market.api.model.Market.GetImageRequest.AppImageUsage;
+
+class test {
+
+    /**
+     * @param args
+     */
+    public static void main(String[] args) {
+        try {
+            if(args.length < 3) {
+                System.out.println("Parameters :\n" +
+                        "email password package");
+                return;
+            }
+
+
+            String login = args[0];
+            String password = args[1];
+            String query = args.length > 2 ? args[2] : "Test";
+
+            MarketSession session = new MarketSession();
+            System.out.println("Login...");
+            session.login(login,password);
+            System.out.println("Login done");
+
+            AppsRequest appsRequest = AppsRequest.newBuilder()
+                .setQuery(query)
+                .setStartIndex(0).setEntriesCount(10)
+                .setWithExtendedInfo(true)
+                .build();
+
+            MarketSession.Callback callback = new MarketSession.Callback() {
+
+                @Override
+                    public void onResult(ResponseContext contex, Object oresp) {
+                        AppsResponse response = (AppsResponse)oresp;
+                        if(response.getAppCount() != 1) {
+                            System.out.println("Not in market, or multiple results");
+                        } else {
+                            App app = response.getAppList().get(0);
+                            System.out.println("Version Code:" + app.getVersionCode());
+                            System.out.println("Version:" + app.getVersion());
+                        }
+                    }
+
+            };
+            session.append(appsRequest, callback);
+            session.flush();
+        } catch(Exception ex) {
+            ex.printStackTrace();
+        }
+    }
+
+}