Bu derste yazılan veya değiştirilen kodlar aşağıdaki gibidir.
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package emrealtunbilek.com.notdefterim.data; import android.content.AsyncQueryHandler; import android.content.ContentResolver; public class NotDefterimQueryHandler extends AsyncQueryHandler { public NotDefterimQueryHandler(ContentResolver cr) { super(cr); } } |
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package emrealtunbilek.com.notdefterim.data; import android.content.ContentProvider; import android.content.ContentUris; import android.content.ContentValues; import android.content.UriMatcher; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteQueryBuilder; import android.net.Uri; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.util.Log; import android.widget.Toast; public class NotDefterimProvider extends ContentProvider { private static final UriMatcher matcher=new UriMatcher(UriMatcher.NO_MATCH); private static final int URICODE_NOTLAR=1; private static final int URICODE_KATEGORILER=2; static { matcher.addURI(NotDefterimContract.CONTENT_AUTHORITY, NotDefterimContract.PATH_NOTLAR, URICODE_NOTLAR); matcher.addURI(NotDefterimContract.CONTENT_AUTHORITY, NotDefterimContract.PATH_KATEGORILER, URICODE_KATEGORILER); } private SQLiteDatabase db; private DatabaseHelper helper; @Override public boolean onCreate() { helper=new DatabaseHelper(getContext()); db=helper.getWritableDatabase(); return true; } @Nullable @Override public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) { Cursor cursor; SQLiteQueryBuilder builder; String tabloBirlestir="notlar inner join kategoriler on notlar.kategoriID = kategoriler._id"; switch (matcher.match(uri)){ case URICODE_NOTLAR: builder=new SQLiteQueryBuilder(); builder.setTables(tabloBirlestir); cursor= builder.query(db, projection,selection,selectionArgs,null,null,null); break; case URICODE_KATEGORILER: cursor=db.query(NotDefterimContract.KategoriEntry.TABLE_NAME, projection,selection,selectionArgs,null,null,null); break; default: throw new IllegalArgumentException("BILINMEYEN QUERY URI"+uri); } cursor.setNotificationUri(getContext().getContentResolver(), uri); return cursor; } @Nullable @Override public String getType(@NonNull Uri uri) { return null; } @Nullable @Override public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) { switch (matcher.match(uri)){ case URICODE_NOTLAR: return kayitEkle(uri, values, NotDefterimContract.NotlarEntry.TABLE_NAME); case URICODE_KATEGORILER: return kayitEkle(uri, values, NotDefterimContract.KategoriEntry.TABLE_NAME); default: throw new IllegalArgumentException("INSERT BILINMEYEN URI:"+uri); } } @Override public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) { //Toast.makeText(getContext(), "Eslesen kod:"+matcher.match(uri)+" Link:"+uri, Toast.LENGTH_LONG).show(); switch (matcher.match(uri)){ case URICODE_NOTLAR: return kayitSil(uri, selection, selectionArgs,NotDefterimContract.NotlarEntry.TABLE_NAME); case URICODE_KATEGORILER: return kayitSil(uri, selection, selectionArgs,NotDefterimContract.KategoriEntry.TABLE_NAME); default: throw new IllegalArgumentException("BILINMEYEN DELETE URI"+uri); } } @Override public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs) { switch (matcher.match(uri)){ case URICODE_NOTLAR: return kayitGuncelle(uri,values,selection,selectionArgs, NotDefterimContract.NotlarEntry.TABLE_NAME); case URICODE_KATEGORILER: return kayitGuncelle(uri,values,selection,selectionArgs, NotDefterimContract.KategoriEntry.TABLE_NAME); default: throw new IllegalArgumentException("BILINMEYEN UPDATE URI"+uri); } } private Uri kayitEkle(Uri uri, ContentValues values, String tabloAdi){ long id= db.insert(tabloAdi, null, values); if(id==-1){ Log.e("NotDefterimProvider", "INSERT HATA"+uri); return null; } getContext().getContentResolver().notifyChange(uri, null); return ContentUris.withAppendedId(uri, id); } private int kayitGuncelle(Uri uri, ContentValues values, String selection, String[] selectionArgs, String tabloAdi){ int id= db.update(tabloAdi, values, selection,selectionArgs); if(id==0) { Log.e("HATA", "UPDATE HATA"+uri); return -1; } getContext().getContentResolver().notifyChange(uri, null); return id; } private int kayitSil(Uri uri, String selection, String[] selectionArgs, String tabloAdi){ int id= db.delete(tabloAdi, selection,selectionArgs); if(id==0) { Log.e("HATA", "UPDATE HATA"+uri); return -1; } getContext().getContentResolver().notifyChange(uri, null); return id; } } |
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package emrealtunbilek.com.notdefterim; import android.app.LoaderManager; import android.content.ContentValues; import android.content.CursorLoader; import android.content.Intent; import android.content.Loader; import android.database.Cursor; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.util.Log; import android.view.View; import android.view.Menu; import android.view.MenuItem; import android.widget.ListView; import android.widget.Spinner; import android.widget.Toast; import emrealtunbilek.com.notdefterim.data.NotDefterimContract; import emrealtunbilek.com.notdefterim.data.NotDefterimContract.NotlarEntry; import emrealtunbilek.com.notdefterim.data.NotDefterimQueryHandler; public class MainActivity extends AppCompatActivity implements LoaderManager.LoaderCallbacks<Cursor> { private static final int TUM_NOTLAR = -1; private static final int TUM_KATEGORILER = -1; Spinner spinner; ListView notlarListesi; NotlarCursorAdapter adapter; Cursor cursor; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); //loader initialize edilir ve oncreateloader tetiklenir getLoaderManager().initLoader(100, null, this); spinner = (Spinner) findViewById(R.id.spinner); notlarListesi = (ListView) findViewById(R.id.lvNotlar); adapter = new NotlarCursorAdapter(this, cursor, false); notlarListesi.setAdapter(adapter); /* notlarListesi.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Intent intent = new Intent(MainActivity.this, NotActivity.class); String tiklanilanNot = (String) notlarListesi.getItemAtPosition(position); intent.putExtra("notIcerik", tiklanilanNot); startActivity(intent); } });*/ FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent intent = new Intent(MainActivity.this, NotActivity.class); startActivity(intent); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { int id = item.getItemId(); if (id == R.id.action_settings) { return true; } if (id == R.id.action_kategori) { Intent intent = new Intent(this, KategoriActivity.class); startActivity(intent); return true; } if (id == R.id.action_tum_kategorileri_sil) { kategorileriSil(TUM_KATEGORILER); return true; } if (id == R.id.action_tum_notlari_sil) { notlariSil(TUM_NOTLAR); return true; } if (id == R.id.action_test_kategoriler) { testKategorilerOlustur(); return true; } if (id == R.id.action_test_notlar) { testNotlarOlustur(); return true; } return super.onOptionsItemSelected(item); } private void testKategorilerOlustur() { for (int i = 1; i <= 20; i++) { ContentValues values = new ContentValues(); values.put(NotDefterimContract.KategoriEntry.COLUMN_KATEGORI, "Deneme Kategori #" + i); NotDefterimQueryHandler handler = new NotDefterimQueryHandler(this.getContentResolver()); handler.startInsert(1, null, NotDefterimContract.KategoriEntry.CONTENT_URI, values); } } private void testNotlarOlustur() { for (int i = 1; i <= 1000; i++) { ContentValues yeniKayit = new ContentValues(); yeniKayit.put(NotlarEntry.COLUMN_NOT_ICERIK, "YENİ NOT #" + i); yeniKayit.put(NotlarEntry.COLUMN_KATEGORI_ID, (i % 20) + 1); yeniKayit.put(NotlarEntry.COLUMN_OLUSTURULMA_TARIHI, "06-05-2017"); yeniKayit.put(NotlarEntry.COLUMN_YAPILDI, 1); NotDefterimQueryHandler handler = new NotDefterimQueryHandler(this.getContentResolver()); handler.startInsert(1, null, NotlarEntry.CONTENT_URI, yeniKayit); } } private void kategoriGoster() { String[] projection = {"_id", "kategori"}; Cursor cursor = getContentResolver().query(NotDefterimContract.KategoriEntry.CONTENT_URI, projection, null, null, null, null); String tumKategoriler = ""; while (cursor.moveToNext()) { String id = cursor.getString(0); String kategori = cursor.getString(1); tumKategoriler = tumKategoriler + "id:" + id + " kategori:" + kategori + "\n"; } Toast.makeText(this, tumKategoriler, Toast.LENGTH_LONG).show(); Log.d("VERI", tumKategoriler); } private void notlariGuncelle() { ContentValues values = new ContentValues(); values.put(NotlarEntry.COLUMN_NOT_ICERIK, "güncellenen yeni değer"); int id = getContentResolver().update(NotlarEntry.CONTENT_URI, values, "_id=?", new String[]{"8"}); Toast.makeText(this, "Kayıt Güncellendi:" + id, Toast.LENGTH_LONG).show(); } private void notlariSil(int silinecekID) { String selection = "_id=?"; String[] args = {String.valueOf(silinecekID)}; if (silinecekID == TUM_NOTLAR) { selection = null; args = null; } NotDefterimQueryHandler handler = new NotDefterimQueryHandler(this.getContentResolver()); handler.startDelete(1, null, NotlarEntry.CONTENT_URI, selection, args); } private void kategorileriSil(int silinecekID) { String selection = "_id=?"; String[] args = {String.valueOf(silinecekID)}; if (silinecekID == TUM_KATEGORILER) { selection = null; args = null; } int id = getContentResolver().delete(NotDefterimContract.KategoriEntry.CONTENT_URI, selection, args); Toast.makeText(this, "Kayıt Silindi:" + id, Toast.LENGTH_LONG).show(); } @Override public Loader<Cursor> onCreateLoader(int id, Bundle args) { if (id == 100) { String[] projection = {"notlar._id", "notlar.notIcerik", "kategoriler._id", "kategoriler.kategori"}; return new CursorLoader(this, NotlarEntry.CONTENT_URI, projection, null, null, null); } return null; } @Override public void onLoadFinished(Loader<Cursor> loader, Cursor data) { adapter.swapCursor(data); } @Override public void onLoaderReset(Loader<Cursor> loader) { adapter.swapCursor(null); } } |