Java tutorial
/* * Copyright (C) 2012 Dominik Schrmann <dominik@dominikschuermann.de> * Copyright (C) 2010 Thialfihar <thi@thialfihar.org> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.sufficientlysecure.keychain.ui.widget; import org.sufficientlysecure.keychain.Id; import org.sufficientlysecure.keychain.helper.OtherHelper; import org.sufficientlysecure.keychain.helper.PgpHelper; import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds; import org.sufficientlysecure.keychain.R; import android.content.Context; import android.database.Cursor; import android.support.v4.widget.CursorAdapter; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.CheckBox; import android.widget.ListView; import android.widget.TextView; public class SelectKeyCursorAdapter extends CursorAdapter { protected int mKeyType; private LayoutInflater mInflater; private ListView mListView; public final static String PROJECTION_ROW_AVAILABLE = "available"; public final static String PROJECTION_ROW_VALID = "valid"; @SuppressWarnings("deprecation") public SelectKeyCursorAdapter(Context context, ListView listView, Cursor c, int keyType) { super(context, c); mInflater = LayoutInflater.from(context); mListView = listView; mKeyType = keyType; } public String getUserId(int position) { mCursor.moveToPosition(position); return mCursor.getString(mCursor.getColumnIndex(UserIds.USER_ID)); } public long getMasterKeyId(int position) { mCursor.moveToPosition(position); return mCursor.getLong(mCursor.getColumnIndex(KeyRings.MASTER_KEY_ID)); } @Override public void bindView(View view, Context context, Cursor cursor) { boolean valid = cursor.getInt(cursor.getColumnIndex(PROJECTION_ROW_VALID)) > 0; TextView mainUserId = (TextView) view.findViewById(R.id.mainUserId); mainUserId.setText(R.string.unknownUserId); TextView mainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest); mainUserIdRest.setText(""); TextView keyId = (TextView) view.findViewById(R.id.keyId); keyId.setText(R.string.noKey); TextView status = (TextView) view.findViewById(R.id.status); status.setText(R.string.unknownStatus); String userId = cursor.getString(cursor.getColumnIndex(UserIds.USER_ID)); if (userId != null) { String[] userIdSplit = OtherHelper.splitUserId(userId); if (userIdSplit[1] != null) { mainUserIdRest.setText(userIdSplit[1]); } mainUserId.setText(userIdSplit[0]); } long masterKeyId = cursor.getLong(cursor.getColumnIndex(KeyRings.MASTER_KEY_ID)); keyId.setText(PgpHelper.getSmallFingerPrint(masterKeyId)); if (mainUserIdRest.getText().length() == 0) { mainUserIdRest.setVisibility(View.GONE); } if (valid) { if (mKeyType == Id.type.public_key) { status.setText(R.string.canEncrypt); } else { status.setText(R.string.canSign); } } else { if (cursor.getInt(cursor.getColumnIndex(PROJECTION_ROW_AVAILABLE)) > 0) { // has some CAN_ENCRYPT keys, but col(ROW_VALID) = 0, so must be revoked or // expired status.setText(R.string.expired); } else { status.setText(R.string.noKey); } } CheckBox selected = (CheckBox) view.findViewById(R.id.selected); if (mKeyType == Id.type.public_key) { selected.setVisibility(View.VISIBLE); if (!valid) { mListView.setItemChecked(cursor.getPosition(), false); } selected.setChecked(mListView.isItemChecked(cursor.getPosition())); selected.setEnabled(valid); } else { selected.setVisibility(View.GONE); } status.setText(status.getText() + " "); view.setEnabled(valid); mainUserId.setEnabled(valid); mainUserIdRest.setEnabled(valid); keyId.setEnabled(valid); status.setEnabled(valid); } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { return mInflater.inflate(R.layout.select_key_item, null); } }