java - GoogleMap Android API V2 捕获错误

Question

我试试@ Tarsem已经回答但发生 fatal error 我可以知道为什么吗？@ Tarsem回答: https://stackoverflow.com/a/18308611/2398886

<--- 这些是我在 eclipse 中的错误代码:--->

08-21 18:52:23.399: W/dalvikvm(29376): threadid=1: thread exiting with uncaught exception (group=0x40018578)

08-21 18:52:23.409: E/AndroidRuntime(29376): FATAL EXCEPTION: main

08-21 18:52:23.409: E/AndroidRuntime(29376): java.lang.NoClassDefFoundError: com.example.testing01.MainActivity2$6

08-21 18:52:23.409: E/AndroidRuntime(29376): at com.example.testing01.MainActivity2.CaptureMapScreen(MainActivity2.java:410)

08-21 18:52:23.409: E/AndroidRuntime(29376): at com.example.testing01.MainActivity2$3.onClick(MainActivity2.java:182)

08-21 18:52:23.409: E/AndroidRuntime(29376): at android.view.View.performClick(View.java:2485)

08-21 18:52:23.409: E/AndroidRuntime(29376): at android.view.View$PerformClick.run(View.java:9080)

08-21 18:52:23.409: E/AndroidRuntime(29376): at android.os.Handler.handleCallback(Handler.java:587)

08-21 18:52:23.409: E/AndroidRuntime(29376): at android.os.Handler.dispatchMessage(Handler.java:92)

08-21 18:52:23.409: E/AndroidRuntime(29376): at android.os.Looper.loop(Looper.java:130)

08-21 18:52:23.409: E/AndroidRuntime(29376): at android.app.ActivityThread.main(ActivityThread.java:3687)

08-21 18:52:23.409: E/AndroidRuntime(29376): at java.lang.reflect.Method.invokeNative(Native Method)

08-21 18:52:23.409: E/AndroidRuntime(29376): at java.lang.reflect.Method.invoke(Method.java:507)

08-21 18:52:23.409: E/AndroidRuntime(29376): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:867)

08-21 18:52:23.409: E/AndroidRuntime(29376): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)

08-21 18:52:23.409: E/AndroidRuntime(29376): at dalvik.system.NativeStart.main(Native Method)

<--- 这些是我在 eclipse 中的错误代码:--->

这是我的编码，请问我的编码有什么bug吗？

public void CaptureMapScreen() 
 {
 SnapshotReadyCallback callback = new SnapshotReadyCallback() {
             Bitmap bitmap;

             @Override
             public void onSnapshotReady(Bitmap snapshot) {
                 // TODO Auto-generated method stub
                 bitmap = snapshot;
                 try {
                     FileOutputStream out = new FileOutputStream("/mnt/sdcard/"
                         + "MyMapScreen" + System.currentTimeMillis()
                         + ".png");

                     // above "/mnt ..... png" => is a storage path (where image will be stored) + name of image you can customize as per your Requirement

                     bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
                 } catch (Exception e) {
                     e.printStackTrace();
                 }
             }
         };

         map.snapshot(callback);

         // myMap is object of GoogleMap +> GoogleMap myMap;
         // which is initialized in onCreate() => 
         // myMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map_pass_home_call)).getMap();
 }

我的停止按钮功能:

//End Button Function
 Button timerStopButton = (Button) findViewById(R.id.btnTimerStop);      
 timerStopButton.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view){          

            String latitude3=Double.toString(latitude1);
            String latitude4=Double.toString(latitude2);
            String longitude3=Double.toString(longitude1);
            String longitude4=Double.toString(longitude2);
            String Kcalories=String.format("%.2f", calories);

            Intent intent = new Intent(view.getContext(),NewDataActivity.class);
            intent.putExtra("lat1", latitude3);
            intent.putExtra("lat2", latitude4);
            intent.putExtra("long1", longitude3);
            intent.putExtra("long2", longitude4);
            intent.putExtra("timer", timerStop1);
            intent.putExtra("distance", distance2 + " m");
            intent.putExtra("Ccalories", Kcalories + " kcal");
            Toast.makeText(getApplicationContext(), "Calories (kcal):" + Kcalories, Toast.LENGTH_LONG).show();
            startActivity(intent);                                          

            try {
                CaptureMapScreen();
            } catch (Exception e) {
                // TODO: handle exception
                e.printStackTrace();
            }

            //kill task timer and other 
            int pid = android.os.Process.myPid();
            android.os.Process.killProcess(pid);
        }                

 });

是我的代码有什么错误还是我的逻辑有问题？谁能帮我？谢谢:)

Answer 1

注意 您捕获 map 屏幕的代码是正确的，如果您仍然感到困惑，那么

请确保以下每个步骤:-

以下是使用示例捕获 Google Map V2 屏幕截图的步骤

第 1 步打开Android Sdk Manager(窗口> Android Sdk Manager)然后Expand Extras现在更新/安装Google Play版本 10 的服务如果已经安装

则忽略此步骤

在这里阅读笔记 https://developers.google.com/maps/documentation/android/releases#august_2013

第 2 步。 重新启动 Eclipse

第 3 步。 import com.google.android.gms.maps.GoogleMap.SnapshotReadyCallback;

第 4 步。 如下所示制作捕获/存储屏幕/ map 图像的方法

public void CaptureMapScreen() 
{
SnapshotReadyCallback callback = new SnapshotReadyCallback() {
            Bitmap bitmap;

            @Override
            public void onSnapshotReady(Bitmap snapshot) {
                // TODO Auto-generated method stub
                bitmap = snapshot;
                try {
                    FileOutputStream out = new FileOutputStream("/mnt/sdcard/"
                        + "MyMapScreen" + System.currentTimeMillis()
                        + ".png");

                    // above "/mnt ..... png" => is a storage path (where image will be stored) + name of image you can customize as per your Requirement

                    bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };

        myMap.snapshot(callback);

        // myMap is object of GoogleMap +> GoogleMap myMap;
        // which is initialized in onCreate() => 
        // myMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map_pass_home_call)).getMap();
}

第 5 步。现在在您要捕获图像的位置调用此 CaptureMapScreen() 方法

在我的例子中，我在我的onCreate()中点击按钮调用这个方法，它工作正常

喜欢:

Button btnCap = (Button) findViewById(R.id.btnTakeScreenshot);
    btnCap.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            try {
                CaptureMapScreen();
            } catch (Exception e) {
                // TODO: handle exception
                e.printStackTrace();
            }

        }
    });

检查文档 here和 here