I have been attempting to store data into a ListView as separate items but it just isn't working. If someone who understands Android Studio and my issue could help me I would be so helpful. I think my organization in MainActivity.java might be why it doesn't work. MainActivity.java has the ListView while NewTask.java is where the user inputs data such as the name of a task and its due date. I have used startActivityForResult() but I am still having an issue. Please help.
MainActivity.java
package com.example.shaan.todoer;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends Activity {
ArrayList<String> list = new ArrayList<String>();
ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Things still left to do:
//Prevent Overriding of Items
//Activate Delete Tasks on Hard Click of Items
//Fit Name, Date, and Priority on One Line of List
//Attempt to be able to sort items in Listview
Button firstButton = (Button) findViewById(R.id.add_task_group);
firstButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, CalendarViewActivity.class));
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_multiple_choice, list);
ListView listViewToDo = (ListView) findViewById(R.id.listViewToDo);
listViewToDo.setAdapter(adapter);
Intent i = new Intent(this, NewTask.class);
startActivityForResult(i, 1);
if(requestCode == 1) {
if(resultCode == RESULT_OK) {
String str = data.getStringExtra("type_task_name");
String str1 = data.getStringExtra("text_date");
int seek = data.getIntExtra("seekBar", 0);
adapter.add(str);
}
adapter.notifyDataSetChanged();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
NewTask.java
package com.example.shaan.todoer;
import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;
public class NewTask extends Activity implements OnClickListener {
Button set_date;
private int calYear, calMonth, calDay;
private SeekBar slider;
private TextView sliderLevel;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_task);
initialize();
Button cancel_new_task = (Button) findViewById(R.id.cancel_new_task);
cancel_new_task.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(NewTask.this, MainActivity.class));
}
});
sliderLevel.setText("Priority Level: " + slider.getProgress() + "/" + slider.getMax());
slider.setOnClickListener(this);
slider.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
int work = 0;
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
work = progress;
Toast.makeText(getApplicationContext(), "Priority Level is Changing", Toast.LENGTH_SHORT);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
Toast.makeText(getApplicationContext(), "Started tracking Slider", Toast.LENGTH_SHORT);
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
sliderLevel.setText("Priority Level: " + work + "/" + slider.getMax());
Toast.makeText(getApplicationContext(), "Stopped tracking Slider", Toast.LENGTH_SHORT);
}
});
}
private void initialize() {
slider = (SeekBar) findViewById(R.id.seekBar);
sliderLevel = (TextView) findViewById(R.id.textView7);
set_date = (Button) findViewById(R.id.set_date);
text_date = (EditText) findViewById(R.id.text_date);
set_date.setOnClickListener(this);
text_date.setOnClickListener(this);
create_task = (Button) findViewById(R.id.create_task);
type_task_name = (EditText) findViewById(R.id.type_task_name);
seekBar = (SeekBar) findViewById(R.id.seekBar);
text_date = (EditText) findViewById(R.id.text_date);
}
Button create_task;
EditText type_task_name;
SeekBar seekBar;
EditText text_date;
@Override
public void onClick(View v) {
if (v == set_date) {
final Calendar cal = Calendar.getInstance();
calYear = cal.get(Calendar.YEAR);
calMonth = cal.get(Calendar.MONTH);
calDay = cal.get(Calendar.DAY_OF_MONTH);
DatePickerDialog date = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker look, int year, int month, int day) {
text_date.setText((month + 1) + "/" + (day) + "/" + year);
}
}, calYear, calMonth, calDay);
date.show();
}
}
public void buttonAddClick(View v) {
startActivity(new Intent(NewTask.this, MainActivity.class));
Intent i = new Intent();
i.putExtra("type_task_name", type_task_name.getText().toString());
i.putExtra("text_date", text_date.getText().toString());
i.putExtra("seekBar", seekBar.getProgress());
setResult(RESULT_OK, i);
finish();
}
}
