Android 私密通讯录源码-IT计算机-毕业设计.zip

/* * [程序名称] Android 通讯录 * [作者] xmobileapp团队 * [参考资料] Google Android Samples * [开源协议] Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0) * * 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 com.xmobileapp.contact; import com.xmobileapp.contact.R; import android.app.Activity; import android.content.ContentValues; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class ContactEditor extends Activity { private static final String TAG = "ContactEditor"; private static final int STATE_EDIT = 0; private static final int STATE_INSERT = 1; private static final int REVERT_ID = Menu.FIRST; private static final int DISCARD_ID = Menu.FIRST + 1; private static final int DELETE_ID = Menu.FIRST + 2; private int mState; private Uri mUri; private Cursor mCursor; private EditText nameText; private EditText mPhoneText; private EditText emailText; private Button saveButton; private Button cancelButton; private String originalNameText = ""; private String originalMPhoneText = ""; private String originalEmailText = ""; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Intent intent = getIntent(); final String action = intent.getAction(); Log.e(TAG + ":onCreate", action); if (Intent.ACTION_EDIT.equals(action)) { mState = STATE_EDIT; mUri = intent.getData(); } else if (Intent.ACTION_INSERT.equals(action)) { mState = STATE_INSERT; mUri = getContentResolver().insert(intent.getData(), null); if (mUri == null) { Log.e(TAG + ":onCreate", "Failed to insert new Contact into " + getIntent().getData()); finish(); return; } setResult(RESULT_OK, (new Intent()).setAction(mUri.toString())); } else { Log.e(TAG + ":onCreate", " unknown action"); finish(); return; } setContentView(R.layout.contact_editor); nameText = (EditText) findViewById(R.id.EditText01); mPhoneText = (EditText) findViewById(R.id.EditText02); emailText = (EditText) findViewById(R.id.EditText03); saveButton = (Button) findViewById(R.id.Button01); cancelButton = (Button) findViewById(R.id.Button02); saveButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { String text = nameText.getText().toString(); if (text.length() == 0) { setResult(RESULT_CANCELED); deleteContact(); finish(); } else { updateContact(); } } }); cancelButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { if (mState == STATE_INSERT) { setResult(RESULT_CANCELED); deleteContact(); finish(); } else { backupContact(); } } }); Log.e(TAG + ":onCreate", mUri.toString()); // 获得并保存原始联系人信息 mCursor = managedQuery(mUri, ContactColumn.PROJECTION, null, null, null); mCursor.moveToFirst(); originalNameText = mCursor.getString(ContactColumn.NAME_COLUMN); originalMPhoneText = mCursor.getString(ContactColumn.MOBILE_COLUMN); originalEmailText = mCursor.getString(ContactColumn.EMAIL_COLUMN); Log.e(TAG, "end of onCreate()"); } @Override protected void onResume() { super.onResume(); if (mCursor != null) { Log.e(TAG + ":onResume", "count:" + mCursor.getColumnCount()); // 读取并显示联系人信息 mCursor.moveToFirst(); if (mState == STATE_EDIT) { setTitle(getText(R.string.contact_edit)); } else if (mState == STATE_INSERT) { setTitle(getText(R.string.contact_create)); } String name = mCursor.getString(ContactColumn.NAME_COLUMN); String mPhone = mCursor.getString(ContactColumn.MOBILE_COLUMN); String email = mCursor.getString(ContactColumn.EMAIL_COLUMN); Log.e(TAG + ":onResume", "name:" + name + "mPhone:" + mPhone + "email:" + email); nameText.setText(name); mPhoneText.setText(mPhone); emailText.setText(email); } else { setTitle(getText(R.string.error_msg)); } } @Override protected void onPause() { super.onPause(); if (mCursor != null) { String text = nameText.getText().toString(); if (text.length() == 0) { Log.e(TAG + ":onPause", "nameText is null "); setResult(RESULT_CANCELED); deleteContact(); // 更新信息 } else { ContentValues values = new ContentValues(); values.put(ContactColumn.NAME, nameText.getText().toString()); values.put(ContactColumn.MOBILE, mPhoneText.getText() .toString()); values.put(ContactColumn.EMAIL, emailText.getText().toString()); Log.e(TAG + ":onPause", mUri.toString()); Log.e(TAG + ":onPause", values.toString()); getContentResolver().update(mUri, values, null, null); } } } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); if (mState == STATE_EDIT) { menu.add(0, REVERT_ID, 0, R.string.menu_revert).setShortcut('0', 'r').setIcon(android.R.drawable.ic_menu_revert); menu.add(0, DELETE_ID, 0, R.string.menu_delete).setShortcut('0', 'd').setIcon(android.R.drawable.ic_menu_delete); } else { menu.add(0, DISCARD_ID, 0, R.string.menu_discard).setShortcut('0', 'd').setIcon(android.R.drawable.ic_menu_delete); } return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case DELETE_ID: deleteContact(); finish(); break; case DISCARD_ID: cancelContact(); break; case REVERT_ID: backupContact(); break; } return super.onOptionsItemSelected(item); } // 删除联系人信息 private void deleteContact() { if (mCursor != null) { mCursor.close(); mCursor = null; getContentResolver().delete(mUri, null, null); nameText.setText(""); } } // 丢弃信息 private void cancelContact() { if (mCursor != null) { deleteContact(); } setResult(RESULT_CANCELED); finish(); } // 更新 变更的信息 private void updateContact() { if (mCursor != null) { mCursor.close(); mCursor = null; ContentValues values = new ContentValues(); values.put(ContactColumn.NAME, nameText.getText().toString()); values.put(ContactColumn.MOBILE, mPhoneText.getText().toString()); values.put(ContactColumn.EMAIL, emailText.getText().toString()); Log.e(TAG + ":onPause", mUri.toString()); Log.e(TAG + ":onPause", values.toString()); getContentResolver().update(mUri, values, null, null); } setResult(RESULT_CANCELED); finish(); } // 取消用，回退到最初的信息 private void backupContact() { if (mCursor != null) { mCursor.close(); mCursor = null; ContentValues values = new ContentValues(); values.put(ContactColumn.NAME, this.originalNameText); values.put(ContactColumn.MOBILE, this.originalMPhoneText); values.put(ContactColumn.EMAIL, this.originalEmailText); Log.e(TAG + ":onPause", mUri.toString()); Log.e(TAG + ":onPause", values.toString()); getContentResolver().update(mUri, values, null, null); } setResult(RES