Hi guys, I'm currently facing a problem, after inserting data on activity, after pressing the send button, another activity is loaded on which the most recent data stored in the database is loaded in displayed in a TextView.
But each time I pressed the send button, when the app redirect me to the next activity it crashed and I dunno why. If you could help me, I thank you in advance.
Below the DBHelper.java
Below the activity that is fetching the data
But each time I pressed the send button, when the app redirect me to the next activity it crashed and I dunno why. If you could help me, I thank you in advance.
Below the DBHelper.java
Java:
public Cursor getDataSoilData(String username){
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery("Select pH, OCarbon, nitrogen, phosphorus, potassium, zinc, temparature, date from soilData where username = ? ORDER BY id DESC LIMIT 1", new String[] {username}, null);
return cursor;
};
Below the activity that is fetching the data
Java:
public class StatusActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_status);
Button viewData = (Button)findViewById(R.id.submitBtn);
TextView pHLevel = (TextView)findViewById(R.id.phLevel);
TextView organicCLevel = (TextView)findViewById(R.id.organicCLevel);
TextView nitrogenLevel = (TextView)findViewById(R.id.nitrogenlevel);
TextView phosphorusLevel = (TextView)findViewById(R.id.phosphorusLevel);
TextView potassiumLevel = (TextView)findViewById(R.id.potassiumLevel);
TextView zincLevel = (TextView)findViewById(R.id.zincLevel);
TextView temperatureLevel = (TextView)findViewById(R.id.temparatureLevel);
TextView date1 = (TextView)findViewById(R.id.date);
String tempMessage;
String pHMessage;
String organicCMessage;
String nitrogenMessage;
String phosphorusMessage;
String potassiumMessage;
String zincMessage;
DBHelper db = new DBHelper(this);
String username = getIntent().getStringExtra("username");
Cursor cursor = db.getDataSoilData(username);
StringBuilder pH = new StringBuilder();
StringBuilder organicC1 = new StringBuilder();
StringBuilder nitrogen1 = new StringBuilder();
StringBuilder phosphorus1 = new StringBuilder();
StringBuilder potassium1 = new StringBuilder();
StringBuilder zinc1 = new StringBuilder();
StringBuilder temp = new StringBuilder();
StringBuilder date = new StringBuilder();;
while(cursor.moveToNext()){
pH.append(cursor.getDouble(2));
organicC1.append(cursor.getDouble(3));
nitrogen1.append(cursor.getDouble(4));
phosphorus1.append(cursor.getDouble(5));
potassium1.append(cursor.getDouble(6));
zinc1.append(cursor.getDouble(7));
temp.append(cursor.getDouble(8));
date.append(cursor.getString(9));
}