Maps + SQLite

Version imprimable

Maps + SQLite

Bonjour à tous,
Je suis en train d'essayer d'enregistrer les positions lors d'un déplacement avec google maps.
Sauf que j'ai un problème avec sqlite qui me met une erreur et j'ai beau chercher je trouve pas la solution.

Pouvez vous m'aider ?

Les erreurs :

Code:

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11-25 18:31:41.850: D/dalvikvm(716): GC_FOR_MALLOC freed 4995 objects / 308328 bytes in 206ms
11-25 18:31:42.259: D/dalvikvm(716): GC_FOR_MALLOC freed 10114 objects / 614856 bytes in 105ms
11-25 18:31:42.609: D/dalvikvm(716): GC_FOR_MALLOC freed 4772 objects / 313216 bytes in 107ms
11-25 18:31:42.999: D/dalvikvm(716): GC_FOR_MALLOC freed 6181 objects / 377648 bytes in 115ms
11-25 18:31:43.429: D/dalvikvm(716): GC_FOR_MALLOC freed 8537 objects / 651080 bytes in 117ms
11-25 18:31:43.799: D/dalvikvm(716): GC_FOR_MALLOC freed 6091 objects / 370136 bytes in 102ms
11-25 18:31:44.139: I/Maps.MyLocationOverlay(716): Request updates from gps
11-25 18:31:44.389: I/MapActivity(716): Handling network change notification:CONNECTED
11-25 18:31:44.389: E/MapActivity(716): Couldn't get connection factory client
11-25 18:31:44.679: D/dalvikvm(716): GC_EXTERNAL_ALLOC freed 3645 objects / 319584 bytes in 116ms
11-25 18:31:44.709: E/Cursor(716): Finalizing a Cursor that has not been deactivated or closed. database = /data/data/com.android.map/databases/followmi.db, table = Positions, query = SELECT techKey, createDate, longitude, latitude, altitude, speed FROM Positions ORDER BY createDate 
11-25 18:31:44.709: E/Cursor(716): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
11-25 18:31:44.709: E/Cursor(716): 	at android.database.sqlite.SQLiteCursor.<init>(SQLiteCursor.java:210)
11-25 18:31:44.709: E/Cursor(716): 	at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:53)
11-25 18:31:44.709: E/Cursor(716): 	at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1345)
11-25 18:31:44.709: E/Cursor(716): 	at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1229)
11-25 18:31:44.709: E/Cursor(716): 	at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1184)
11-25 18:31:44.709: E/Cursor(716): 	at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1301)
11-25 18:31:44.709: E/Cursor(716): 	at com.android.map.database.DataBase.getPositions(DataBase.java:103)
11-25 18:31:44.709: E/Cursor(716): 	at com.android.map.HelloGoogleMapActivity.onCreate(HelloGoogleMapActivity.java:84)
11-25 18:31:44.709: E/Cursor(716): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-25 18:31:44.709: E/Cursor(716): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
11-25 18:31:44.709: E/Cursor(716): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
11-25 18:31:44.709: E/Cursor(716): 	at android.app.ActivityThread.access$2300(ActivityThread.java:125)
11-25 18:31:44.709: E/Cursor(716): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
11-25 18:31:44.709: E/Cursor(716): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-25 18:31:44.709: E/Cursor(716): 	at android.os.Looper.loop(Looper.java:123)
11-25 18:31:44.709: E/Cursor(716): 	at android.app.ActivityThread.main(ActivityThread.java:4627)
11-25 18:31:44.709: E/Cursor(716): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-25 18:31:44.709: E/Cursor(716): 	at java.lang.reflect.Method.invoke(Method.java:521)
11-25 18:31:44.709: E/Cursor(716): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-25 18:31:44.709: E/Cursor(716): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-25 18:31:44.709: E/Cursor(716): 	at dalvik.system.NativeStart.main(Native Method)
11-25 18:31:44.989: D/dalvikvm(716): GC_FOR_MALLOC freed 809 objects / 255640 bytes in 109ms
11-25 18:31:45.219: D/dalvikvm(716): GC_FOR_MALLOC freed 3597 objects / 305648 bytes in 97ms
11-25 18:31:45.338: D/dalvikvm(716): GC_EXTERNAL_ALLOC freed 46 objects / 25408 bytes in 99ms
11-25 18:33:03.591: I/Maps.MyLocationOverlay(716): Running deferred on first fix: com.android.map.HelloGoogleMapActivity$1@44fd5de0
11-25 18:33:05.469: D/dalvikvm(716): GC_EXTERNAL_ALLOC freed 1896 objects / 235344 bytes in 118ms
11-25 18:33:06.189: D/dalvikvm(716): GC_EXPLICIT freed 2742 objects / 171200 bytes in 95ms
11-25 18:33:08.559: D/dalvikvm(716): GC_EXPLICIT freed 446 objects / 88144 bytes in 112ms
11-25 18:33:10.829: D/dalvikvm(716): GC_EXPLICIT freed 154 objects / 45064 bytes in 95ms
11-25 18:33:13.289: D/dalvikvm(716): GC_EXPLICIT freed 147 objects / 43392 bytes in 110ms
11-25 18:33:38.919: D/AndroidRuntime(716): Shutting down VM
11-25 18:33:38.932: W/dalvikvm(716): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
11-25 18:33:38.959: E/AndroidRuntime(716): FATAL EXCEPTION: main
11-25 18:33:38.959: E/AndroidRuntime(716): java.lang.NullPointerException
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.google.android.maps.ItemizedOverlay.getItemsAtLocation(ItemizedOverlay.java:617)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.google.android.maps.ItemizedOverlay.getItemAtLocation(ItemizedOverlay.java:586)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.google.android.maps.ItemizedOverlay.handleMotionEvent(ItemizedOverlay.java:498)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.google.android.maps.ItemizedOverlay.onTouchEvent(ItemizedOverlay.java:572)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.google.android.maps.OverlayBundle.onTouchEvent(OverlayBundle.java:63)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.google.android.maps.MapView.onTouchEvent(MapView.java:643)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.View.dispatchTouchEvent(View.java:3766)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:897)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1671)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.app.Activity.dispatchTouchEvent(Activity.java:2086)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1655)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.view.ViewRoot.handleMessage(ViewRoot.java:1785)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.os.Looper.loop(Looper.java:123)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at android.app.ActivityThread.main(ActivityThread.java:4627)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at java.lang.reflect.Method.invoke(Method.java:521)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-25 18:33:38.959: E/AndroidRuntime(716): 	at dalvik.system.NativeStart.main(Native Method)
11-25 18:33:43.071: I/Process(716): Sending signal. PID: 716 SIG: 9

Le code concerné :

Code:

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package com.android.map.database;
 
import java.util.ArrayList;
import java.util.Calendar;
 
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;
import com.android.map.pojos.PositionMarker;
 
 
public class DataBase extends SQLiteOpenHelper{
 
	/** Nom du fichier de la DB **/
	private static String DATABASE_NAME = "followmi.db";
 
	/** Version de la DB, utilisé pour les mises à jour **/
	private static final int DATABASE_VERSION = 1;
 
	/** Référence vers la connection DB **/
	private SQLiteDatabase db;
 
	/** Nom de la table centralisant les Positions enregistrées **/
	private static String COLUMN_TECHKEY = "techKey";
	private static String COLUMN_CREATIONDATE = "createDate";
	private static String TABLE_POSITIONS = "Positions";
	private static String COLUMN_LONGITUDE = "longitude";
	private static String COLUMN_LATITUDE = "latitude";
	private static String COLUMN_ALTITUDE = "altitude";
	private static String COLUMN_SPEED = "speed";
 
 
	private static String CREATE_TABLE_POSITIONS =
			"create table " + TABLE_POSITIONS + " ( " +
					COLUMN_TECHKEY + " integer PRIMARY KEY AUTOINCREMENT," +
					COLUMN_CREATIONDATE + " TIMESTAMP," +
					COLUMN_LONGITUDE + " FLOAT," +
					COLUMN_LATITUDE + " FLOAT," +
					COLUMN_ALTITUDE + " FLOAT," +
					COLUMN_SPEED + " FLOAT" +
					");";
	public DataBase(Context context, String name, CursorFactory factory, int version) {
		super(context, name, factory, version);
		db = getWritableDatabase();
		// TODO Auto-generated constructor stub
	}
 
	@Override
	public void onCreate(SQLiteDatabase db) {
		// TODO Auto-generated method stub
		//on créé la table à partir de la requête écrite dans la variable CREATE_TABLE_POSITIONS
		db.execSQL(CREATE_TABLE_POSITIONS);
	}
	/**
         * Exécuté lorsque le numéro de version change (DATABASE_VERSION).
         * Supprime l'ancienne table Positions et la remplace par la nouvelle.
         */
 
	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		// TODO Auto-generated method stub
		db.execSQL("DROP TABLE IF EXISTS " + TABLE_POSITIONS);
		onCreate(db);
	}
 
	public DataBase(Context context) {
		super(context, DATABASE_NAME, null, DATABASE_VERSION);
		db = getWritableDatabase();
	}
 
	public long insertPosition(PositionMarker positionMarker) {
		if (null != positionMarker) {
			ContentValues positionToInsert = new ContentValues();
			positionToInsert.put(COLUMN_CREATIONDATE, positionMarker.getCreationDate().getTimeInMillis());
			positionToInsert.put(COLUMN_LONGITUDE, positionMarker.getLongitude());
			positionToInsert.put(COLUMN_LATITUDE, positionMarker.getLatitude());
			positionToInsert.put(COLUMN_ALTITUDE, positionMarker.getAltitude());
			positionToInsert.put(COLUMN_SPEED, positionMarker.getSpeed());
			long output = db.insert(TABLE_POSITIONS, null, positionToInsert);
			db.close();
			return output;
		} else {
			return 0;
		} // end-if
	}
 
	/**
         * Récupère l'ensemble des positions disponibles en DB.
         */
	public ArrayList<PositionMarker> getPositions() {
		ArrayList<PositionMarker> output = new ArrayList<PositionMarker>();
		String[] colonnesARecup = new String[] {
				COLUMN_TECHKEY,
				COLUMN_CREATIONDATE,
				COLUMN_LONGITUDE,
				COLUMN_LATITUDE,
				COLUMN_ALTITUDE,
				COLUMN_SPEED
		};
		Cursor cursorResults = db.query(TABLE_POSITIONS, colonnesARecup, null, null, null, null, COLUMN_CREATIONDATE + " asc", null);
		if (null != cursorResults) {
			if (cursorResults.moveToFirst()) {
				do {
					long techKey =  cursorResults.getLong(cursorResults.getColumnIndex(COLUMN_TECHKEY));
					Calendar creationDate = Calendar.getInstance(); creationDate.setTimeInMillis(cursorResults.getLong(cursorResults.getColumnIndex(COLUMN_CREATIONDATE)));
					double longitude = cursorResults.getDouble(cursorResults.getColumnIndex(COLUMN_LONGITUDE));
					double altitude = cursorResults.getDouble(cursorResults.getColumnIndex(COLUMN_ALTITUDE));
					float speed = cursorResults.getFloat(cursorResults.getColumnIndex(COLUMN_SPEED));
					double latitude = cursorResults.getDouble(cursorResults.getColumnIndex(COLUMN_LATITUDE));
					PositionMarker positionToAdd = new PositionMarker(techKey,creationDate,longitude,latitude,altitude,speed);
					output.add(positionToAdd);
				} while (cursorResults.moveToNext());
			} // end-if
		} // end-if
		db.close();
		return output;
	}
}

26/11/2011, 15h50
nicolofontana12

Tu peux d'abord enlever "float" pour le remplacer par Text ou real;
Je pense pas que SQlite gere les types float d'abord.
27/11/2011, 11h38
b_zakaria

Il faut que tu fermes ton curseur juste avant la fermeture de la base :

Code:

cursorResults.close();

Merci b_zakaria.
J'avais déjà trouvé le close.

Par contre dorénavant j'ai un pointeur null exception ...

Code:

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12-01 07:22:06.370: D/dalvikvm(312): GC_FOR_MALLOC freed 4901 objects / 304680 bytes in 177ms
12-01 07:22:06.770: D/dalvikvm(312): GC_FOR_MALLOC freed 10093 objects / 613920 bytes in 113ms
12-01 07:22:07.101: D/dalvikvm(312): GC_FOR_MALLOC freed 4772 objects / 313136 bytes in 97ms
12-01 07:22:07.510: D/dalvikvm(312): GC_FOR_MALLOC freed 6173 objects / 376840 bytes in 115ms
12-01 07:22:07.960: D/dalvikvm(312): GC_FOR_MALLOC freed 8532 objects / 650704 bytes in 119ms
12-01 07:22:08.330: D/dalvikvm(312): GC_FOR_MALLOC freed 6089 objects / 370096 bytes in 114ms
12-01 07:22:08.612: I/Maps.MyLocationOverlay(312): Request updates from gps
12-01 07:22:08.840: I/MapActivity(312): Handling network change notification:CONNECTED
12-01 07:22:08.860: E/MapActivity(312): Couldn't get connection factory client
12-01 07:22:09.130: D/dalvikvm(312): GC_EXTERNAL_ALLOC freed 3657 objects / 319912 bytes in 119ms
12-01 07:22:09.410: D/dalvikvm(312): GC_FOR_MALLOC freed 408 objects / 215552 bytes in 120ms
12-01 07:22:09.600: D/dalvikvm(312): GC_FOR_MALLOC freed 3593 objects / 317352 bytes in 99ms
12-01 07:22:09.730: D/dalvikvm(312): GC_EXTERNAL_ALLOC freed 88 objects / 49168 bytes in 103ms
12-01 07:22:10.060: D/dalvikvm(312): GC_FOR_MALLOC freed 418 objects / 318120 bytes in 92ms
12-01 07:22:10.180: D/dalvikvm(312): GC_EXTERNAL_ALLOC freed 2677 objects / 148096 bytes in 113ms
12-01 07:22:36.811: I/Maps.MyLocationOverlay(312): Running deferred on first fix: com.android.map.HelloGoogleMapActivity$1@44fdd410
12-01 07:22:37.421: D/dalvikvm(312): GC_FOR_MALLOC freed 4201 objects / 271496 bytes in 210ms
12-01 07:22:37.813: D/dalvikvm(312): GC_FOR_MALLOC freed 6646 objects / 403440 bytes in 106ms
12-01 07:23:05.692: D/dalvikvm(312): GC_FOR_MALLOC freed 10047 objects / 842248 bytes in 135ms
12-01 07:23:07.600: D/AndroidRuntime(312): Shutting down VM
12-01 07:23:07.610: W/dalvikvm(312): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
12-01 07:23:07.660: E/AndroidRuntime(312): FATAL EXCEPTION: main
12-01 07:23:07.660: E/AndroidRuntime(312): java.lang.NullPointerException
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.google.android.maps.ItemizedOverlay.getItemsAtLocation(ItemizedOverlay.java:617)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.google.android.maps.ItemizedOverlay.getItemAtLocation(ItemizedOverlay.java:586)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.google.android.maps.ItemizedOverlay.handleMotionEvent(ItemizedOverlay.java:498)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.google.android.maps.ItemizedOverlay.onTouchEvent(ItemizedOverlay.java:572)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.google.android.maps.OverlayBundle.onTouchEvent(OverlayBundle.java:63)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.google.android.maps.MapView.onTouchEvent(MapView.java:643)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.View.dispatchTouchEvent(View.java:3766)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:897)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:863)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1671)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.app.Activity.dispatchTouchEvent(Activity.java:2086)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1655)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.view.ViewRoot.handleMessage(ViewRoot.java:1785)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.os.Handler.dispatchMessage(Handler.java:99)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.os.Looper.loop(Looper.java:123)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at android.app.ActivityThread.main(ActivityThread.java:4627)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at java.lang.reflect.Method.invokeNative(Native Method)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at java.lang.reflect.Method.invoke(Method.java:521)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-01 07:23:07.660: E/AndroidRuntime(312): 	at dalvik.system.NativeStart.main(Native Method)
12-01 07:23:17.780: I/Process(312): Sending signal. PID: 312 SIG: 9

01/12/2011, 09h20
chpil

Tu dois avoir un problème dans l'implémentation de ton ItemizedOverlay
02/12/2011, 13h06
Feanorin

Pour compléter chpil , celui via de ta fonction getItemsAtLocation ...

Citation:

12-01 07:23:07.660: E/AndroidRuntime(312): java.lang.NullPointerException
12-01 07:23:07.660: E/AndroidRuntime(312): at com.google.android.maps.ItemizedOverlay.getItemsAtLocation(ItemizedOverlay.java:617)
1
05/12/2011, 15h18
Gth35

J'ai trouvé, j'avais oublié de mettre un populate() dans mon PositionMakertList.

Maintenant par contre je n'arrive pas a afficher mon trajet sur la carte ...
05/12/2011, 23h37
nicolofontana12

Il est conseillé d'utiliser l'interface que la classe implementant l'interface

Dans ta methode getPosition()
tu aura pu mettre :

Code:

List<PositionMarker> output = new ArrayList<PositionMarker>();

Au lieu de :

Code:

ArrayList<PositionMarker> output = new ArrayList<PositionMarker>();

C'est des petits details mais ça compte beaucoup sur la qualité et optimisation du code

see ==> http://fmora.developpez.com/tutoriel.../introduction/
11/01/2012, 16h18
Gth35

Merci.

J'ai un nouveau soucis mais ça n'a plus vraiment de rapport.
J'enregistre mes informations dans ma bdd.
Ensuite j'y accède, il n'y a pas de problème.

J'aimerais donc utiliser les points que j'ai enregistrer pour tracer un graphique des altitudes. J'ai mes points mais je sais pas comment faire un graphe ...
Un peu comme ça : http://www.visugpx.com/embed_exemple.html
Enfin juste le graphe pas le fait de pouvoir bouger.

Auriez vous des pistes pour moi ?
11/01/2012, 17h15
Feanorin

Bonjour,

Une librairie si tu veux l'utiliser .
http://code.google.com/p/chartdroid/

Sinon il faut que tu te créer une View personnalisé et dans son Canvas tu créer ton graphique ;) depuis la méthode onDraw()