Chapter 24 ] 맵서비스 (24-1 위치제공자, 위치 기반 서비스, 위치 제공자, 위치 조사, 도착 알림)

오늘은 카메라와 위치정보를 이용하여 특정지역에 진입하였을 경우 알려주는 테스트 어플을 제작해 보았다.

우선은 매니페스트 부터 훑어보자. *. AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest        xmlns:android="http://schemas.android.com/apk/res/android"        package="lee.hyeontae.C25_Camera"        android:versionCode="1"        android:versionName="1.0">            <application              android:icon="@drawable/icon"              android:label="@string/app_name">                <!-- Activity -->              <activity                     android:name=".C25_Camera"                     android:label="@string/app_name"                     android:screenOrientation="landscape">                     <intent-filter>                            <action                                  android:name="android.intent.action.MAIN" />                            <category                                  android:name="android.intent.category.LAUNCHER" />                     </intent-filter>              </activity>                <activity                     android:name=".LocationAlert"                     android:theme="@android:style/Theme.Dialog"                     android:screenOrientation="landscape" />                <receiver                     android:name=".LocationAlertReceiver">                     <intent-filter>                            <action                                  android:name="lee.hyeontae.C25_Camera" />                     </intent-filter>              </receiver>        </application>              <!-- Permission -->        <uses-permission              android:name="android.permission.CAMERA" />        <uses-feature              android:name="android.hardware.camera" />        <uses-feature              android:name="android.hardware.camera.autofocus" />        <uses-permission              android:name="android.permission.WRITE_EXTERNAL_STORAGE" />        <uses-permission              android:name="android.permission.READ_EXTERNAL_STORAGE" />        <uses-permission              android:name="android.permission.LOCATION" />        <uses-permission              android:name="android.permission.ACCESS_FINE_LOCATION" />        <uses-permission              android:name="android.permission.ACCESS_COARSE_LOCATION" />        <uses-permission              android:name="android.permission.VIBRATE" />            <!-- Screen Size Support -->        <supports-screens              android:largeScreens="true"              android:normalScreens="true"              android:smallScreens="true"              android:resizeable="true"              android:anyDensity="true" />            <uses-sdk              android:minSdkVersion="8" /> </manifest>  항상 생각하는건데 퍼미션 너무 많아.... Activity 두개 Receiver하나 설정했다. C25_Camera Activity는 메인 Activity이고, LocationAlert 는 팝업을 출력할때 사용할 테마가 적용된 Activity이다. LocationAlertReceiver 는 특정지역에 진입하였을 경우 BroadCast를 수신받도록한 Receiver이다.

*. C25_Camera.java package lee.hyeontae.C25_Camera;   import java.io.File; import java.io.FileOutputStream; import java.util.List;   import android.app.Activity; import android.app.PendingIntent; import android.app.Service; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.drawable.Drawable; import android.hardware.Camera; import android.hardware.Camera.AutoFocusCallback; import android.hardware.Camera.PictureCallback; import android.location.Criteria; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.SubMenu; import android.view.View; import android.view.Window; import android.widget.Button; import android.widget.ImageButton; import android.widget.TextView; import android.widget.Toast;       public class C25_Camera extends Activity {        SharedPreferences preferences;        SharedPreferences.Editor editor;               MyCameraSuface mSurface;        ImageButton mShutter;        TextView providerTextView, locationTextView, currentDestination;        public static LocationManager LM;        String mBestProvider;        int mCount=0;        public static PendingIntent mPending;        @Override        public void onCreate(Bundle savedInstanceState) {              super.onCreate(savedInstanceState);              requestWindowFeature(Window.FEATURE_NO_TITLE);              setContentView(R.layout.main);                InitViews();                preferences = getSharedPreferences("destination", Service.MODE_PRIVATE);                           LocationProviderList();                           locationAlert();                                                     /**               * @description 카메라 촬영 버튼을 눌렀을 경우 동작.               */              mShutter.setOnClickListener(new Button.OnClickListener() {                     @Override                     public void onClick(View v) {                            mShutter.setEnabled(false);                            mSurface.mCamera.autoFocus(mAutoFocus);                            handler.sendEmptyMessageDelayed(0, 1000);                     }              });        }          /**         * @description 카메라 촬영시 Focus조정후 1초뒤 자동으로 촬영함.         */        Handler handler = new Handler(){              @Override              public void handleMessage(Message msg) {                     super.handleMessage(msg);                     mSurface.mCamera.takePicture(null, null, mPicture);              }        };                      /**         * @description Focus조정을 위한 Callback         */        AutoFocusCallback mAutoFocus = new AutoFocusCallback() {              @Override              public void onAutoFocus(boolean success, Camera camera) {                     mShutter.setEnabled(success);              }        };                             /**         * @description 카메라 영상을 JPG파일로 저장.         */        PictureCallback mPicture = new PictureCallback() {              @Override              public void onPictureTaken(byte[] data, Camera camera) {                     String sd = Environment.getExternalStorageDirectory()                                  .getAbsolutePath();                     String path = sd + "/cameratest.jpg";                       File file = new File(path);                     try {                            FileOutputStream fos = new FileOutputStream(file);                            fos.write(data);                            fos.flush();                            fos.close();                     } catch (Exception e) {                            Toast.makeText(C25_Camera.this, "파일 저장 중 에러 발생 : " + e.getMessage(), 0).show();                            return;                     }                       Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);                     Uri uri = Uri.parse("file://" + path);                     intent.setData(uri);                     sendBroadcast(intent);                       Toast.makeText(C25_Camera.this, "사진 저장 완료  : " + path, 0).show();                     mSurface.mCamera.startPreview();              }        };                 /**         * @description 위치정보를 구하기에 최적의 Provider를 선택.         */        @SuppressWarnings("static-access")        private void LocationProviderList() {              LM = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);              List<String> arProvider = LM.getProviders(false);              String result = "";              for (int i = 0; i < arProvider.size(); i++) {                     result += ("Provider " + i + " : " + arProvider.get(i) + "\n");              }                Criteria crit = new Criteria();              crit.setAccuracy(Criteria.NO_REQUIREMENT);              crit.setPowerRequirement(Criteria.NO_REQUIREMENT);              crit.setAltitudeRequired(false);              crit.setCostAllowed(false);              mBestProvider = LM.getBestProvider(crit, true);              result += ("\nBest Provider : " + mBestProvider + "\n\n");                result += LM.GPS_PROVIDER + " : " + LM.isProviderEnabled(LocationManager.GPS_PROVIDER) + "\n";              result += LM.NETWORK_PROVIDER + " : " + LM.isProviderEnabled(LocationManager.NETWORK_PROVIDER) + "\n";              providerTextView.setText(result);        }                 /**         * @description 모든 View를 초기화함.         */        private void InitViews() {              mSurface = (MyCameraSuface) findViewById(R.id.preview);                           mShutter = (ImageButton) findViewById(R.id.shutter);              Drawable alpha1 = mShutter.getBackground();              alpha1.setAlpha(0);                           providerTextView = (TextView) findViewById(R.id.providerTextView);                           locationTextView = (TextView) findViewById(R.id.currentLocationTextView);                           currentDestination = (TextView)findViewById(R.id.currentDestinationTextView);        }                             /**         * @description 단말의 현재 위치를 구함.         */        LocationListener mListener = new LocationListener() {              @Override              public void onLocationChanged(Location location) {                     mCount++;                     String sloc = String.format("수신회수:%d\n위도:%f\n경도:%f\n고도:%f", mCount,                                  location.getLatitude(), location.getLongitude(), location.getAltitude());                     locationTextView.setText(sloc);              }                @Override              public void onProviderDisabled(String provider) {              }                @Override              public void onProviderEnabled(String provider) {              }                @Override              public void onStatusChanged(String provider, int status, Bundle extras) {              }        };                        /**         * @description 특정 지역 접근시 알림 팝업 출력. 예) 가산 디지털 단지역         */        private void locationAlert() {              Log.d("dodo4989","locationAlert");              Intent intent = new Intent(this, LocationAlertReceiver.class);              intent.setAction("lee.hyeontae.C25_Camera");              mPending = PendingIntent.getBroadcast(this, 0, intent, 0);              Log.d("dodo4989","preferences.getInt="+preferences.getInt("where", 4));                                        switch (preferences.getInt("where", 4)){              case 1:                     LM.addProximityAlert(37.48030511658541, 126.8828335404396, 500, -1, mPending);                     currentDestination.setText("가산디지털단지역");                     break;              case 2:                     LM.addProximityAlert(37.4994995976215, 126.9287234544754, 500, -1, mPending);                     currentDestination.setText("신대방삼거리역");                     break;              case 3:                     LM.addProximityAlert(37.483957534386015, 126.93013697862625, 500, -1, mPending);                     currentDestination.setText("신림역");                     break;              case 4:                     LM.addProximityAlert(37.487049, 126.878930, 500, -1, mPending);                     currentDestination.setText("회사");                     break;              }        }                             /**         * @description 메뉴 버튼 Create         */        @Override        public boolean onCreateOptionsMenu(Menu menu) {              SubMenu sub = menu.addSubMenu("목적지설정");              sub.add(0,1,0,"가산디지털단지역");              sub.add(0,2,0,"신대방삼거리역");              sub.add(0,3,0,"신림역");              sub.add(0,4,0,"회사");              return super.onCreateOptionsMenu(menu);        }          /**         * @description 메뉴에서 각 옵션 선택시 동작 구현.         */        @Override        public boolean onOptionsItemSelected(MenuItem item) {                           editor = preferences.edit();              Intent intent = new Intent(this, LocationAlertReceiver.class);              intent.setAction("lee.hyeontae.C25_Camera");              mPending = PendingIntent.getBroadcast(this, 0, intent, 0);                           switch(item.getItemId()){              case 1:                     Log.d("dodo4989","1");                     editor.putInt("where", 1);                     LM.addProximityAlert(37.48030511658541, 126.8828335404396, 500, -1, mPending);                     currentDestination.setText("가산디지털단지역");                     break;              case 2:                     Log.d("dodo4989","2");                     editor.putInt("where", 2);                     LM.addProximityAlert(37.4994995976215, 126.9287234544754, 500, -1, mPending);                     currentDestination.setText("신대방삼거리역");                     break;              case 3:                     Log.d("dodo4989","3");                     editor.putInt("where", 3);                     LM.addProximityAlert(37.483957534386015, 126.93013697862625, 500, -1, mPending);                     currentDestination.setText("신림역");                     break;              case 4:                     Log.d("dodo4989","4");                     editor.putInt("where", 4);                     LM.addProximityAlert(37.487049, 126.878930, 500, -1, mPending);                     currentDestination.setText("회사");                     break;              }              editor.commit();              return super.onOptionsItemSelected(item);        }            @Override        protected void onResume() {              super.onResume();              LM.requestLocationUpdates(mBestProvider, 1000, 1, mListener); // 1초마다 위치정보를 받아옴, 1미터 변경시 위치정보를 받아옴.          }          @Override        protected void onPause() {              super.onPause();              LM.removeUpdates(mListener);              LM.removeProximityAlert(mPending);        }          @Override        protected void onDestroy() {              super.onDestroy();        }   }   워매...쏘스 길다^^ 대강의 주석은 달아 두었으니까 패쓰!!!

*. main.xml <?xml version="1.0" encoding="utf-8"?> <FrameLayout        xmlns:android="http://schemas.android.com/apk/res/android"        android:orientation="vertical"        android:layout_width="fill_parent"        android:layout_height="fill_parent">        <lee.hyeontae.C25_Camera.MyCameraSuface              android:id="@+id/preview"              android:layout_width="fill_parent"              android:layout_height="fill_parent" />              <TextView              android:id="@+id/currentDestinationTextView"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:textSize="20dip"              android:textColor="#0000FF"              android:layout_gravity="center_horizontal"              />        <ImageButton              android:id="@+id/shutter"              android:src="@drawable/camera_shutter_image"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:layout_gravity="center_vertical|right"              android:layout_marginRight="5dip"              />        <TextView              android:id="@+id/providerTextView"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:layout_gravity="center_vertical|left" />        <TextView              android:id="@+id/currentLocationTextView"              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:layout_gravity="right"              android:textColor="#FF0000"              /> </FrameLayout>     SurfaceView와 Button 그리고 TextView들을 모두 보여주기 위해 FrameLayout으로 정의되었다.

*. MyCameraSuface.java package lee.hyeontae.C25_Camera;   import java.util.List;   import android.content.Context; import android.graphics.PixelFormat; import android.hardware.Camera; import android.hardware.Camera.Size; import android.util.AttributeSet; import android.view.SurfaceHolder; import android.view.SurfaceView;   public class MyCameraSuface extends SurfaceView implements SurfaceHolder.Callback{        SurfaceHolder mHolder;        Camera mCamera;                      public MyCameraSuface(Context context, AttributeSet attrs) {              super(context, attrs);              mHolder = getHolder();              mHolder.addCallback(this);              mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);        }          @Override        public void surfaceChanged(SurfaceHolder holder, int format, int width,                     int height) {              Camera.Parameters params = mCamera.getParameters();              List<Size> arSize = params.getSupportedPreviewSizes();              if(arSize == null){                     params.setPreviewSize(width, height);              }                           else {                     int diff = 10000;                     Size opti = null;                     for(Size s : arSize) {                            if(Math.abs(s.height - height) < diff) {                                  diff = Math.abs(s.height - height);                                  opti = s;                            }                     }                     params.setPreviewSize(opti.width, opti.height);              }              params.setPictureFormat(PixelFormat.JPEG);              mCamera.setParameters(params);              mCamera.startPreview();                 }          @Override        public void surfaceCreated(SurfaceHolder holder) {              mCamera = Camera.open();              try {                     mCamera.setPreviewDisplay(mHolder);              } catch (Exception e) {                     mCamera.release();                     mCamera = null;              }                     }          @Override        public void surfaceDestroyed(SurfaceHolder holder) {              if(mCamera != null) {                     mCamera.stopPreview();                     mCamera.release();                     mCamera = null;              }                     }   }     카메라 동작과 관련되 소스이다. 책과 인터넷을 찾아보면 쉽게 알 수있으며, 메소드 이름만 봐도 알겠네^^ 쓸데없는 카메라 촬영기능도 있다^^

*. LocationAlertReceiver.java   package lee.hyeontae.C25_Camera;   import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.location.LocationManager; import android.media.AudioManager; import android.media.MediaPlayer; import android.os.Vibrator; import android.util.Log; import android.widget.Toast;     /**  * @description 특정지역 접근시 날라온 BroadCast를 Receive하여 처리함.  */ public class LocationAlertReceiver extends BroadcastReceiver{        Beeper DingDong;        Vibrator vibrator;        @Override        public void onReceive(Context context, Intent intent) {              Log.d("dodo4989","onReceive");              if(!MannerMode(context)){                     DingDong = new Beeper(context, R.raw.dingdong);                     DingDong.play();              }              vibrator = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE);              vibrator.vibrate(1000);                           boolean bEnter = intent.getBooleanExtra(LocationManager.KEY_PROXIMITY_ENTERING, true); // true이면 특정지역 접근, false이면 특정지역에서 해제              Toast.makeText(context, bEnter ? "아싸 도착!!" : "나갔네!!", Toast.LENGTH_LONG).show();                           //           토스트 팝업 말고 Activity팝업 띄우기         //           if(bEnter){ //                  Intent alert_intent = new Intent(context, LocationAlert.class); //                  alert_intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //                  context.startActivity(alert_intent); //           }        }                      /**         * @description 매너모드 인지 체크함.         * @param context         * @return 매너모드이면 true, 일반모드이면 false         */        private boolean MannerMode(Context context){              AudioManager mAudioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);              switch (mAudioManager.getRingerMode()){              case AudioManager.RINGER_MODE_SILENT:              case AudioManager.RINGER_MODE_VIBRATE:                     return true;              }              return false;        } }   /**  * @description 비프음을 출력하기 위한 클래스.  */ class Beeper{        MediaPlayer player;        Beeper(Context context, int id) {              player = MediaPlayer.create(context, id);                     }        void play() {              player.seekTo(0);              player.start();        } }   특정 지역에 진입했을때 날라온 BroadCast를 Receive한다. 이때 토스트도 띄우고, 진동도 울리고, 소리도 나고^^ 매너모드를 체크하는것도 잊지 않았지!!!

*. LocationAlert.java package lee.hyeontae.C25_Camera;   import android.R.style; import android.app.Activity; import android.content.res.Resources.Theme; import android.os.Bundle; import android.view.Window;       /**  * @description 특정지역 접근시 알림 팝업 출력  */ public class LocationAlert extends Activity{        @Override        protected void onCreate(Bundle savedInstanceState) {              super.onCreate(savedInstanceState);              requestWindowFeature(Window.FEATURE_NO_TITLE);              setContentView(R.layout.location_alert);        }                 @Override        protected void onApplyThemeResource(Theme theme, int resid, boolean first) {              super.onApplyThemeResource(theme, resid, first);              theme.applyStyle(style.Theme_Panel, true);        }            @Override        protected void onPause() {              super.onPause();              //C25_Camera.LM.removeProximityAlert(C25_Camera.mPending);        }                      }     이게 이게 사용은 안되고 있지만 Activity에 테마를 적용시켜서 마치 팝업이 뜬것처럼 동작하는것이다. 요거 띄우니까 동작이 이상해져서 일단 패스함.

*. location_alert.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout        xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_width="100dip"        android:layout_height="100dip">        <TextView              android:layout_width="wrap_content"              android:layout_height="wrap_content"              android:text="아싸 도착!!!"              android:textSize="30dip" /> </LinearLayout>     위 Activity와 같이 동작하는 XML파일이다. 마찬가지로 지금은 사용하지 않는다.

카메라 공부만 해볼려고한건데...LBS도 공부하는구나~~~~ㅋㅋㅋ