Java tutorial
/* * Copyright 2011-2014 the original author or authors. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.hivewallet.androidclient.wallet.ui; import java.io.FileNotFoundException; import java.io.IOException; import javax.annotation.Nonnull; import javax.annotation.Nullable; import android.app.Activity; import android.app.Dialog; import android.content.ContentResolver; import android.content.ContentValues; import android.content.DialogInterface; import android.content.Intent; import android.graphics.Bitmap; import android.net.Uri; import android.os.Bundle; import android.provider.MediaStore; import android.support.v4.app.DialogFragment; import android.support.v4.app.FragmentManager; import android.view.LayoutInflater; import android.view.View; import android.widget.AutoCompleteTextView; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import com.hivewallet.androidclient.wallet.AddressBookProvider; import com.hivewallet.androidclient.wallet.AddressBookProvider.AddressBookEntry; import com.hivewallet.androidclient.wallet.Constants; import com.hivewallet.androidclient.wallet.util.WalletUtils; import com.hivewallet.androidclient.wallet_test.R; import com.squareup.picasso.Picasso; /** * @author Andreas Schildbach */ public final class EditAddressBookEntryFragment extends DialogFragment { private static final String FRAGMENT_TAG = EditAddressBookEntryFragment.class.getName(); private static final int REQUEST_CODE_PICK_PHOTO = 0; private static final String KEY_ADDRESS = "address"; private static final String KEY_SUGGESTED_ADDRESS_LABEL = "suggested_address_label"; private static final String KEY_SUGGESTED_PHOTO_URI = "suggested_photo_uri"; public static void edit(final FragmentManager fm, @Nonnull final String address) { edit(fm, address, null); } public static void edit(final FragmentManager fm, @Nonnull final String address, @Nullable final String suggestedAddressLabel) { edit(fm, address, suggestedAddressLabel, null); } public static void edit(final FragmentManager fm, @Nonnull final String address, @Nullable final String suggestedAddressLabel, @Nullable final Uri suggestedPhotoUri) { final DialogFragment newFragment = EditAddressBookEntryFragment.instance(address, suggestedAddressLabel, suggestedPhotoUri); newFragment.show(fm, FRAGMENT_TAG); } private static EditAddressBookEntryFragment instance(@Nonnull final String address, @Nullable final String suggestedAddressLabel, @Nullable final Uri suggestedPhotoUri) { final EditAddressBookEntryFragment fragment = new EditAddressBookEntryFragment(); final Bundle args = new Bundle(); args.putString(KEY_ADDRESS, address); args.putString(KEY_SUGGESTED_ADDRESS_LABEL, suggestedAddressLabel); args.putParcelable(KEY_SUGGESTED_PHOTO_URI, suggestedPhotoUri); fragment.setArguments(args); return fragment; } private Activity activity; private ContentResolver contentResolver; private Uri photoUri; private ImageView photo; @Override public void onAttach(final Activity activity) { super.onAttach(activity); this.activity = activity; this.contentResolver = activity.getContentResolver(); } private void updateImageView() { if (photo == null) return; Picasso.with(activity).load(photoUri).placeholder(R.drawable.ic_contact_picture).into(photo); } @Override public Dialog onCreateDialog(final Bundle savedInstanceState) { final Bundle args = getArguments(); final String address = args.getString(KEY_ADDRESS); final String suggestedAddressLabel = args.getString(KEY_SUGGESTED_ADDRESS_LABEL); final Uri suggestedPhotoUri = args.getParcelable(KEY_SUGGESTED_PHOTO_URI); final LayoutInflater inflater = LayoutInflater.from(activity); final Uri uri = AddressBookProvider.contentUri(activity.getPackageName()).buildUpon().appendPath(address) .build(); final AddressBookEntry entry = AddressBookProvider.lookupEntry(activity, address); String label = null; if (entry != null) { label = entry.getLabel(); photoUri = entry.getPhotoUri(); } if (photoUri == null) photoUri = suggestedPhotoUri; final boolean isAdd = entry == null; final DialogBuilder dialog = new DialogBuilder(activity); dialog.setTitle(isAdd ? R.string.edit_address_book_entry_dialog_title_add : R.string.edit_address_book_entry_dialog_title_edit); final View view = inflater.inflate(R.layout.edit_address_book_entry_dialog, null); final TextView viewAddress = (TextView) view.findViewById(R.id.edit_address_book_entry_address); viewAddress.setText(WalletUtils.formatHash(address, Constants.ADDRESS_FORMAT_GROUP_SIZE, Constants.ADDRESS_FORMAT_LINE_SIZE)); final AutoCompleteTextView viewLabel = (AutoCompleteTextView) view .findViewById(R.id.edit_address_book_entry_label); viewLabel.setText(label != null ? label : suggestedAddressLabel); photo = (ImageView) view.findViewById(R.id.iv_edit_address_photo); updateImageView(); final Button pickPhotoButton = (Button) view.findViewById(R.id.b_edit_address_pick_photo); pickPhotoButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { handlePickPhoto(); } }); final Button clearPhotoButton = (Button) view.findViewById(R.id.b_edit_address_clear_photo); clearPhotoButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { handleClearPhoto(); } }); dialog.setView(view); final DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() { @Override public void onClick(final DialogInterface dialog, final int which) { if (which == DialogInterface.BUTTON_POSITIVE) { final String newLabel = viewLabel.getText().toString().trim(); if (!newLabel.isEmpty()) { final ContentValues values = new ContentValues(); values.put(AddressBookProvider.KEY_LABEL, newLabel); values.put(AddressBookProvider.KEY_PHOTO, photoUri == null ? null : photoUri.toString()); if (isAdd) contentResolver.insert(uri, values); else contentResolver.update(uri, values, null, null); } else if (!isAdd) { contentResolver.delete(uri, null, null); } } else if (which == DialogInterface.BUTTON_NEUTRAL) { contentResolver.delete(uri, null, null); } dismiss(); } }; dialog.setPositiveButton(isAdd ? R.string.button_add : R.string.edit_address_book_entry_dialog_button_edit, onClickListener); if (!isAdd) dialog.setNeutralButton(R.string.button_delete, onClickListener); dialog.setNegativeButton(R.string.button_cancel, onClickListener); return dialog.create(); } private void handlePickPhoto() { Intent imageIntent = new Intent(); imageIntent.setType("image/*"); imageIntent.setAction(Intent.ACTION_GET_CONTENT); Intent choiceIntent = Intent.createChooser(imageIntent, getString(R.string.edit_address_book_entry_dialog_photo_selection)); startActivityForResult(choiceIntent, REQUEST_CODE_PICK_PHOTO); } private void handleClearPhoto() { photoUri = null; updateImageView(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQUEST_CODE_PICK_PHOTO && resultCode == Activity.RESULT_OK) { Uri uri = data.getData(); Bitmap bitmap = null; try { bitmap = MediaStore.Images.Media.getBitmap(contentResolver, uri); } catch (FileNotFoundException ignored) { } catch (IOException ignored) { } if (bitmap != null) { photoUri = AddressBookProvider.storeBitmap(activity, bitmap); } else { photoUri = null; } updateImageView(); } } }