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SQL database for android

+2 votes
253 views

Is there an easier way to use SQL/SQLite in android applications? I am fine with using any third party libraries.

posted Aug 16, 2016 by Akshay

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1 Answer

+1 vote
 
Best answer

Yes, OrmLite and SugarORM are really very useful libraries that make your DB process very easy. Try theses and let me know if you have any questions

answer Aug 22, 2016 by Vinod Kumar K V
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+1 vote

My app cashes when i click submit, it doesnt verify the fields as it should.
It works the way i want to but if i click on submit without entering anything it crashes.

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button addBtn = (Button) findViewById(R.id.addBtn);
        addBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                EditText amoutGiven = (EditText) findViewById(R.id.amountG);
                EditText manyPeople = (EditText) findViewById(R.id.mPeople);
                EditText moenyGiven = (EditText) findViewById(R.id.moneyG);
                TextView changeTxt  = (TextView) findViewById(R.id.changeTxt);
                Button nxtBtn     = (Button) findViewById(R.id.nxtBtn);
                Button tryBtn     = (Button) findViewById(R.id.tryBtn);
                android.view.inputmethod.InputMethodManager imm = (android.view.inputmethod.InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), 0);

                if (amoutGiven.getText().length()==0){
                    amoutGiven.setError("This field is required");
                }

                if (manyPeople.getText().length()==0){
                    manyPeople.setError("This field is required");
                }

                if (moenyGiven.getText().length()==0){
                    moenyGiven.setError("This field is required");
                }

                int num1 = Integer.parseInt(amoutGiven.getText().toString());
                int num2 = Integer.parseInt(manyPeople.getText().toString());
                int num3 = Integer.parseInt(moenyGiven.getText().toString());
                int total = num1 * num2;
                int change = num3 - total;

                changeTxt.setVisibility((changeTxt.getVisibility() == View.VISIBLE)
                        ? View.INVISIBLE : View.VISIBLE);

                if (change < 0 ){
                    changeTxt.setText("Your numbers dont add up");
                    tryBtn.setVisibility((tryBtn.getVisibility() == View.VISIBLE)
                            ? View.INVISIBLE : View.VISIBLE);
                    tryBtn.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            startActivity(new Intent(MainActivity.this, MainActivity.class));

                        }
                    });

                }else {

                    changeTxt.setText( "Give Back Change oF: R" + change +"" );
                    nxtBtn.setVisibility((nxtBtn.getVisibility() == View.VISIBLE)
                            ? View.INVISIBLE : View.VISIBLE);
                    nxtBtn.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            startActivity(new Intent(MainActivity.this, MainActivity.class));    
                        }
                    });    
                }    
            }
        });    
    }
}
...