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'dan sonra Şu anda okulda Android uygulaması üzerinde çalışıyorum. Zaten forumlara baktım ve sorunu kendim düzeltmeye çalıştım, ama kaydetme düğmesine bastığımda ListView'imin neden otomatik olarak güncellenmediğini anlayamıyorum. Aslında Aşağı açılır menüsüne basmalı ve güncellemeden önce öğesini seçmeliyim. Herkes ona bir göz atabilir ve neyi yanlış yaptığımı bana bildirebilir mi?Android ListView saveButton'dan sonra güncellenmiyor, ancak onItemSelected
Teşekkürler!
activity_main.xml
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/GridLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnCount="1"
android:orientation="horizontal"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.physicalactivitytracker.MainActivity" >
<Spinner
android:id="@+id/activityDropDown"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start"
android:background="@android:drawable/btn_dropdown"
android:entries="@array/activity_array"
android:spinnerMode="dropdown" >
<requestFocus/>
</Spinner>
<LinearLayout android:layout_gravity="fill_horizontal"
android:focusable="true"
android:focusableInTouchMode="true">
<EditText
android:id="@+id/infoText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="bottom|fill_horizontal"
android:ems="10"
android:hint="@string/infoHint"
android:imeOptions="actionDone"
android:singleLine="true"
android:lines="1"
android:inputType="number" />
<ImageButton
android:id="@+id/saveButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="@string/saveDescription"
android:src="@android:drawable/ic_menu_save" />
</LinearLayout>
<LinearLayout android:gravity="fill_horizontal" >
<Button
android:id="@+id/soFarButton"
style="android:buttonBarStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/psf" />
<Button
android:id="@+id/startOverButton"
style="android:buttonBarStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/so" />
</LinearLayout>
<LinearLayout
android:layout_height="0dp"
android:layout_gravity="fill"
android:layout_marginTop="@dimen/activity_vertical_margin"
android:background="@android:color/holo_blue_bright"
android:orientation="vertical"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin" >
<TextView
android:id="@+id/textView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="fill_horizontal"
android:gravity="center_horizontal"
android:text="@string/taggedSearches"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_gravity="fill"
android:layout_weight="1" />
</LinearLayout>
activity_list.xml
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium" >
MainActivity.java
package com.example.physicalactivitytracker;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ListActivity {
private static final String SEARCHES = "searches";
private Spinner activityDropDown;
private ImageButton saveButton;
private EditText infoText;
private SharedPreferences savedSearches;
private ArrayList<String> tags;
private ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addItemsOnSpinner();
// get references
activityDropDown = (Spinner) findViewById(R.id.activityDropDown);
infoText = (EditText) findViewById(R.id.infoText);
activityDropDown.setOnItemSelectedListener(acList);
//Get Users Saved Searches
savedSearches = getSharedPreferences(SEARCHES, MODE_PRIVATE);
// Store Saved Info to List
tags = new ArrayList<String>(savedSearches.getAll().keySet());
// Create Array Adapter
adapter = new ArrayAdapter<String>(this, R.layout.activity_list_item, tags);
setListAdapter(adapter);
// Register Listener to Save Searches
ImageButton saveButton = (ImageButton) findViewById(R.id.saveButton);
saveButton.setOnClickListener(saveButtonListener);
// Register listener to touches on list
getListView().setOnItemClickListener(itemClickListener);
// Set Listener on long click item to edit/delete/etc
getListView().setOnItemLongClickListener(itemLongClickListener);
} //end on create
//saveButtonListener for Saving Info to List
public OnClickListener saveButtonListener = new OnClickListener() {
@Override
public void onClick(View v)
{
// create info tags that match drop down activity
if (infoText.getText().length() > 0 && infoText.getText().toString().matches(".*\\d+.*")
&& activityDropDown.getSelectedItem().toString().matches("Walking"))
{
addTaggedSearch(activityDropDown.getSelectedItem().toString() + " " + infoText.getText().toString()
+ " Miles");
infoText.setText(""); // clear infoText
}
else if (infoText.getText().length() > 0 && infoText.getText().toString().matches(".*\\d+.*")
&& activityDropDown.getSelectedItem().toString().matches("Running"))
{
addTaggedSearch(activityDropDown.getSelectedItem().toString() + " " + infoText.getText().toString()
+ " Miles");
infoText.setText(""); // clear infoText
}
else if (infoText.getText().length() > 0 && infoText.getText().toString().matches(".*\\d+.*")
&& activityDropDown.getSelectedItem().toString().matches("Stairs"))
{
addTaggedSearch(activityDropDown.getSelectedItem().toString() + " " + infoText.getText().toString()
+ " Number of Floors");
infoText.setText(""); // clear infoText
}
else if (infoText.getText().length() > 0 && infoText.getText().toString().matches(".*\\d+.*")
&& activityDropDown.getSelectedItem().toString().matches("Generic"))
{
addTaggedSearch(activityDropDown.getSelectedItem().toString() + " " + infoText.getText().toString()
+ " Calories");
infoText.setText(""); // clear infoText
}
else // display message asking user to enter info
{
// create new alert
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
// set alert message to display
builder.setMessage(R.string.missingMessage);
// provide an OK button to dismiss dialog
builder.setPositiveButton(R.string.OK, null);
// create the alert dialog from builder
AlertDialog errorDialog = builder.create();
errorDialog.show(); // displays error dialog
}
}
}; // end OnClickListener
// add new search to save file and refresh buttons
private void addTaggedSearch(String tag)
{
// get a SharedPrefrences.Editor to store info
SharedPreferences.Editor preferencesEditor = savedSearches.edit();
preferencesEditor.putString(tag, tag); // store search
preferencesEditor.apply(); // store updated preference
// add info
if (!tags.add(tag))
{
tags.add(tag); // add new tag
adapter.notifyDataSetChanged(); // rebind tags to ListView
}
} // end add tag
// itemClickListenerListener opens tag info
OnItemClickListener itemClickListener = new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
//show tag info
}
}; // end itemClickListener
//itemLongCLickListener displays a dialog allowing user to delete or edit saves list item
OnItemLongClickListener itemLongClickListener = new OnItemLongClickListener()
{
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id)
{
// get tag that user clicked
final String tag = ((TextView) view).getText().toString();
// create new alert dialog
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
// set the AlertDialog Title
builder.setTitle(getString(R.string.shareEditDeleteTitle, tag));
// set list of items to display in alert
builder.setItems(R.array.dialog_items, new DialogInterface.OnClickListener()
{
// respond to touch by sharing, editing or deleting
@Override
public void onClick(DialogInterface dialog, int which)
{
switch (which)
{
case 0: //share
shareSearch(tag);
break;
case 1: //edit
// sets infoText to match tag
infoText.setText(tag);
infoText.setText(savedSearches.getString(tag, ""));
break;
case 2: // delete
deleteSearch(tag);
break;
}
}
} //end DialogInterface.OnClickListener
); // end call to builder.setItems
// set AlertDialog negative Button
builder.setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener()
{
// called when cancel button is clicked
public void onClick(DialogInterface dialog, int id)
{
dialog.cancel(); //dismiss AlertDialog
}
}
); // end call to setNegativeButon
builder.create().show(); //display AlertDialog
return true;
} // end method onItemLongClick
}; // end onItemLongClick declaration
//allow user to choose an app for sharing saved items
private void shareSearch(String tag)
{
// create Intent to share urlString
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.shareSubject));
shareIntent.putExtra(Intent.EXTRA_TEXT, getString(R.string.shareMessage));
shareIntent.setType("text/plain");
// display apps that can share text
startActivity(Intent.createChooser(shareIntent, getString(R.string.shareSearch)));
}
// deletes search after user confirms the delete operation
private void deleteSearch(final String tag)
{
// create new AlertDialog
AlertDialog.Builder confirmBuilder = new AlertDialog.Builder(this);
// set the AlertDialog message
confirmBuilder.setMessage(getString(R.string.confirmMessage, tag));
// set AlertDialog negative message
confirmBuilder.setNegativeButton(getString(R.string.cancel), new DialogInterface.OnClickListener()
{
// called when Cancel is clicked
public void onClick(DialogInterface dialog, int id)
{
dialog.cancel(); // dismiss dialog
}
}
); // end call to setNegativeButton
// set the AlertDialogs positive button
confirmBuilder.setPositiveButton(getString(R.string.delete), new DialogInterface.OnClickListener()
{
// called when Cancel button is clicked
public void onClick(DialogInterface dialog, int id)
{
tags.remove(tag); // remove tag from tags
// get SharePrefrences.Editor to remove saved info
SharedPreferences.Editor preferencesEditor = savedSearches.edit();
preferencesEditor.remove(tag); // remove search
preferencesEditor.apply(); // save the changes
// rebind tags ArrayList to ListView to show updates list
adapter.notifyDataSetChanged();
}
} // end OnClickListener
); // end call to setPositiveButton
confirmBuilder.create().show(); // display AlertDialog
} // end method Delete Search
public void addItemsOnSpinner() {
activityDropDown = (Spinner) findViewById(R.id.activityDropDown);
List<String> list = new ArrayList<String>();
list.add("Walking");
list.add("Running");
list.add("Stairs");
list.add("Generic");
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, list);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
activityDropDown.setAdapter(dataAdapter);
}
// on Item Select Update infoText Hint
public OnItemSelectedListener acList = new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
{
String selectedItem = parent.getItemAtPosition(position).toString();
if(selectedItem.equals("Walking"))
{
infoText.setHint("# of Miles Walked");
}
else if(selectedItem.equals("Running"))
{
infoText.setHint("# of Miles Ran");
}
else if(selectedItem.equals("Stairs"))
{
infoText.setHint("# of Floors Walked");
}
else if(selectedItem.equals("Generic"))
{
infoText.setHint("# of Calories Burned");
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
};
public void addListenerOnSpinnerItemSelection() {
activityDropDown = (Spinner) findViewById(R.id.activityDropDown);
activityDropDown.setOnItemSelectedListener(new CustomOnItemSelectedListener());
}
public void addListenerOnButton() {
activityDropDown = (Spinner) findViewById(R.id.activityDropDown);
saveButton = (ImageButton) findViewById(R.id.saveButton);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}