我建议你先解析数据，然后将其保存到数据库中，然后显示。
如果您没有创建数据库，则必须先创建数据库，示例代码如下
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
/**
*
* @author Robert
*
*/
public class DatabaseHelper extends SQLiteOpenHelper{
/**
* Default constructor- creates database
* @param context
*/
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}
/**
* Implemented methood from SQLiteOpenHelper- called when
* constructor of DatabaseHelper is called
* Creates three tables (TRIP, POINT, TRANSFER) with relations
* TRAVEL-POINT and POINT TRANSFER
* @see SQLiteOpenHelper
*/
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TRIP_TABLE_NAME
+ "(_id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ FROM + " TEXT, "
+ TO + " TEXT);");
db.execSQL("CREATE TABLE " + TRANSFER_TABLE_NAME
+ "(_id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ NOTE + " TEXT, "
+ TIME + " TEXT, "
+ DATE + " TEXT, "
+ ADDRESS + " TEXT, "
+ CITY + " TEXT, "
+ COUNTRY + " TEXT, "
+ LATITUDE + " TEXT, "
+ LOGITUDE + " TEXT, "
+ TRANFER_TYPE + " TEXT, "
+ FK_POINT + " INTEGER NOT NULL REFERENCES "+ POINT_TABLE_NAME +"(_id)"
+ "ON DELETE CASCADE);");
db.execSQL("CREATE TABLE " + POINT_TABLE_NAME
+ "(_id INTEGER PRIMARY KEY AUTOINCREMENT, "
+ NAME + " TEXT, "
+ ADDRESS + " TEXT, "
+ CITY + " TEXT, "
+ COUNTRY + " TEXT, "
+ LATITUDE + " TEXT, "
+ LOGITUDE + " TEXT, "
+ FK_TRAVEL + " INTEGER NOT NULL REFERENCES "+ TRIP_TABLE_NAME +"(_id)"
+ "ON DELETE CASCADE);");
}
/**
* Implemented method from SQLiteOpenHelper- we don't use it now
* @see SQLiteOpenHelper
*/
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
/**
* Private fields, mainly names of columns and tables in database
*/
private static final String DATABASE_NAME = "TRAVELER_NOTEBOOK";
//Table names
private static final String TRIP_TABLE_NAME = "TRIP";
private static final String POINT_TABLE_NAME = "POINT";
private static final String TRANSFER_TABLE_NAME = "TRANSFER";
//Columns names
private static final String FROM = "FROM_PLACE";
private static final String TO = "TO_PLACE";
private static final String NAME = "NAME";
private static final String ADDRESS = "ADDRESS";
private static final String CITY = "CITY";
private static final String COUNTRY = "COUNTRY";
private static final String LATITUDE = "LATITUDE";
private static final String LOGITUDE = "LOGITUDE";
private static final String NOTE = "NOTE";
private static final String TIME = "TIME";
private static final String DATE = "DATE";
private static final String TRANFER_TYPE = "TRANSFER_TYPE";
//Foregin keys name
private static final String FK_TRAVEL = "FK_TRAVEL_ID";
private static final String FK_POINT = "FK_POINT_ID";
}
下一步是在您的活动中获取可写数据库，您可以通过创建来完成
SQLiteDatabase database = (new DatabaseHelper(this).getWritableDatabase());
其中 DatabaseHelper 是数据库助手类的名称。如果你想向数据库中插入一些东西，只需做一些类似的事情，如下所示：
private void processAdd(values_to_save) {
ContentValues values = new ContentValues(number_of_values);
values.put(column_name, value);
values.put(column_name, value);
if(database!=null){
database.insert(TABLE_NAME, null, values);
} else{
Log.e("MyAppError", "Database is null");
}
}
ContentValue 类似于 HashMap 键值，其中键是列名，值是您要插入的内容。
请记住，在每个表中，您应该有“_id 主键自动增量”列，因为我记得很好，您不必这样做，但这会使您的项目更加复杂。
