I'm making an app where Epileptic users can store information into an SQLite database about seizures they have recently had and display view them in another activity via a ListView. The app stops working on the emulator when I press the submit data button and if I press any button or tab that brings me to the page (ActivityDiary) where they can view any records..
In the logcat I'm getting a critical RuntimeException .. here FATAL EXCEPTION: main Process: com.example.administrator.seizuretrack, PID: 2783
android.database.sqlite.SQLiteException: near "TimeTEXTDescriptionTEXT": syntax error (code 1): , while compiling: CREATE TABLE diary_table (ID INTEGER PRIMARY KEY AUTOINCREMENT,Date TEXT TimeTEXTDescriptionTEXT
Activity for submitting the data:
public class RecordSeizuresActivity extends AppCompatActivity {
/**instantiating the floating button objects**/
FloatingActionButton homeBut;
FloatingActionButton seizureBut;
FloatingActionButton diaryBut;
DatabaseHelper myDB;
/**instantiate the objects for database handling**/
private Button butAddData, butViewData;
private EditText dateText, timeText, desText;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_rec_seizures);
/************Database code in onCreate method*************************/
/**Create an instance of Database Helper class, call the constructor**/
myDB = new DatabaseHelper(this);
dateText = (EditText) findViewById(R.id.dateText);
timeText = (EditText) findViewById(R.id.timeText);
desText = (EditText) findViewById(R.id.desText);
butAddData = (Button) findViewById(R.id.butAddData);
butViewData = (Button) findViewById(R.id.butViewData);
myDB = new DatabaseHelper(this);
butAddData.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String getDate = dateText.getText().toString();
String getTime = timeText.getText().toString();
String getDescription = desText.getText().toString();
if (dateText.length() != 0 && timeText.length() != 0 && desText.length() != 0){
AddData(getDate, getTime, getDescription);
/**reset the text boxes so that they are blank**/
dateText.setText(" ");
timeText.setText(" ");
desText.setText(" ");
} else {
Toast.makeText(getApplicationContext(), "Please enter all fields!", Toast.LENGTH_LONG).show();
}
}
});
butViewData.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view){
Intent intent = new Intent(RecordSeizuresActivity.this,ActivityDiary.class);
startActivity(intent);
}
});
}
public void AddData(String getDate, String getTime, String getDescription){
boolean insertData = myDB.AddData(getDate, getTime, getDescription);
if (insertData == true){
Toast.makeText(getApplicationContext(), "Successfully Entered A New Seizure Record!", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(), "Something went wrong", Toast.LENGTH_LONG).show();
}
}
DatabaseHelper:
public class DatabaseHelper extends SQLiteOpenHelper {
private static final String TAG = "DatabaseHelper";
public static final String DATABASE_NAME = "SeizureTrack.db";
public static final String TABLE_NAME = "diary_table";
public static final String COL_1 = "ID";
public static final String COL_2 = "Date";
public static final String COL_3 = "Time";
public static final String COL_4 = "Description";
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_NAME + " (ID INTEGER PRIMARY KEY AUTOINCREMENT,"
+ COL_2 + " TEXT " + COL_3 + "TEXT" + COL_4 + "TEXT");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
onCreate(db);
}
public boolean AddData(String item, String item2, String item3) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(COL_2, item);
contentValues.put(COL_3, item2);
contentValues.put(COL_4, item3);
Log.d(TAG, "AddData: Adding " + item + item2 + item3 + " to " + TABLE_NAME);
long result = db.insert(TABLE_NAME, null, contentValues);
/**if data is inserted incorrectly it will return -1**/
if (result == -1){
return false;
} else {
return true;
}
}
public Cursor getListContents() {
SQLiteDatabase db = this.getWritableDatabase();
Cursor data = db.rawQuery("SELECT * FROM " + TABLE_NAME, null);
return data;
}
}
activity for viewing the data:
public class ActivityDiary extends AppCompatActivity {
FloatingActionButton homeBut;
FloatingActionButton seizureBut;
FloatingActionButton diaryBut;
DatabaseHelper myDB;
ArrayList<User> userList;
ListView listView;
User user;
/**instantiate the objects for database handling**/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_diary);
Toast.makeText(getApplicationContext(), "Diary", Toast.LENGTH_LONG).show();
homeBut = (FloatingActionButton)findViewById(R.id.floatingHomeButton);
homeBut.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ActivityDiary.this, HomeActivity.class));
}
});
seizureBut = (FloatingActionButton)findViewById(R.id.floatingRecSeizuresButton);
seizureBut.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ActivityDiary.this, RecordSeizuresActivity.class));
}
});
diaryBut = (FloatingActionButton)findViewById(R.id.floatingDiaryButton);
diaryBut.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(ActivityDiary.this, ActivityDiary.class));
}
});
/************Database code in onCreate method*************************/
/**Create an instance of Database Helper class, call the constructor**/
myDB = new DatabaseHelper(this);
userList = new ArrayList<>();
Cursor data = myDB.getListContents();
int numRows = data.getCount();
if(numRows == 0){
/**handles all NullPointerExceptions**/
Toast.makeText(ActivityDiary.this, "You No Have Seizures On Record!", Toast.LENGTH_LONG).show();
} else {
while (data.moveToNext()) {
user = new User(data.getString(1), data.getString(2), data.getString(3));
userList.add(user);
}
ThreeColumn_ListAdapter adapter = new ThreeColumn_ListAdapter(this, R.layout.adapter_view_layout, userList);
listView = (ListView) findViewById(R.id.listView);
listView.setAdapter(adapter);
}
}
}
List adapter class:
public class ThreeColumn_ListAdapter extends ArrayAdapter<User> {
private LayoutInflater uInflater;
private ArrayList<User> users;
private int uViewResourceId;
public ThreeColumn_ListAdapter(Context context, int textViewResourceId, ArrayList<User> users){
super(context, textViewResourceId, users);
this.users = users;
uInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
uViewResourceId = textViewResourceId;
}
public View getView(int position, View convertView, ViewGroup parents){
User user = users.get(position);
if(user != null){
TextView getDes = (TextView) convertView.findViewById(R.id.textSeizureType);
TextView getDate = (TextView) convertView.findViewById(R.id.textDate);
TextView getTime = (TextView) convertView.findViewById(R.id.textTime);
if(getDes != null){
getDes.setText((user.getDescription()));
}
if(getDate != null){
getDate.setText((user.getDate()));
}
if(getTime != null){
getTime.setText((user.getTime()));
}
}
return convertView;
}
}
Manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.administrator.seizuretrack">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".LoginActivity1"
android:label="@string/title_activity_login1"
android:parentActivityName=".MainActivity"
android:theme="@style/AppTheme.NoActionBar">
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.example.administrator.seizuretrack.MainActivity" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".HomeActivity" />
<activity android:name=".AboutActivity"/>
<activity android:name=".RecordSeizuresActivity"/>
<activity android:name=".ActivitySettings"/>
<activity android:name=".ActivityDiary"/>
</application>
</manifest>
答案 0 :(得分：1)
update your db.execSQL query like this
String CREATE_BILL_TABLE = "CREATE TABLE "
+ TABLE_NAME +
"("
+ id +
" INTEGER PRIMARY KEY AUTOINCREMENT,"
+ COL_2 +
" TEXT,"
+ COL_3 +
" TEXT,"
+ COL_4 + " TEXT" + ")";
db.execSQL(CREATE_BILL_TABLE);
答案 1 :(得分：0)
It's better to consider using some ORM instead of using SQLite directly. There are some variants:
1) Realm: https://realm.io/docs/java/latest/#getting-started
2) GreenDao: http://greenrobot.org/greendao/documentation/updating-to-greendao-3-and-annotations/
3) etc...