代码整理——contact

package test.contact;import java.util.ArrayList;import java.util.HashMap;import test.contact.db.DBHelper;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.Gravity;import android.view.KeyEvent;import android.view.View;import android.widget.AdapterView;import android.widget.GridView;import android.widget.ListView;import android.widget.SimpleAdapter;import android.widget.AdapterView.OnItemClickListener;public class MainActivity extends Activity {GridView gv_buttom_menu;ListView lv_userList;SimpleAdapter adapter;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);this.setContentView(R.layout.main);loadUserList();}private void loadUserList() {lv_userList = (ListView) this.findViewById(R.id.lv_userlist);ArrayList data = DBHelper.getInstance(this).getUserList();adapter = new SimpleAdapter(this, data, R.layout.list_item, new String[]{"imageid","name","mobilephone"}, new int[]{R.id.user_image,R.id.tv_showname,R.id.tv_showmobilephone});lv_userList.setAdapter(adapter);lv_userList.setOnItemClickListener(new OnItemClickListener(){@Overridepublic void onItemClick(AdapterView<?> parent, View view,int position, long id) {HashMap map = (HashMap)parent.getItemAtPosition(position);Intent intent = new Intent(MainActivity.this,DetailActivity.class);intent.putExtra("usermap", map);//当requestCode为3的时候代表请求转向DetailActivity这个页面startActivityForResult(intent, 3);}});}@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if(keyCode == KeyEvent.KEYCODE_MENU) {if(gv_buttom_menu == null) {loadButtomMenu();}if(gv_buttom_menu.getVisibility()==View.GONE) {gv_buttom_menu.setVisibility(View.VISIBLE);} else {gv_buttom_menu.setVisibility(View.GONE);}}return super.onKeyDown(keyCode, event);}private void loadButtomMenu() {gv_buttom_menu = (GridView) this.findViewById(R.id.gv_buttom_menu);gv_buttom_menu.setBackgroundResource(R.drawable.channelgallery_bg);gv_buttom_menu.setNumColumns(5);gv_buttom_menu.setGravity(Gravity.CENTER);gv_buttom_menu.setVerticalSpacing(10);gv_buttom_menu.setHorizontalSpacing(10);ArrayList data = new ArrayList();HashMap map = new HashMap();map.put("itemImage", R.drawable.menu_new_user);map.put("itemText","增加");data.add(map);map = new HashMap();map.put("itemImage", R.drawable.menu_search);map.put("itemText","查找");data.add(map);map = new HashMap();map.put("itemImage", R.drawable.menu_delete);map.put("itemText","删除");data.add(map);map = new HashMap();map.put("itemImage", R.drawable.controlbar_showtype_list);map.put("itemText","菜单");data.add(map);map = new HashMap();map.put("itemImage", R.drawable.menu_exit);map.put("itemText","退出");data.add(map);SimpleAdapter adapter = new SimpleAdapter(this, data, R.layout.item_menu,new String[]{"itemImage","itemText"},new int[]{R.id.item_image,R.id.item_text});gv_buttom_menu.setAdapter(adapter);gv_buttom_menu.setOnItemClickListener(new OnItemClickListener(){@Overridepublic void onItemClick(AdapterView<?> parent, View view,int position, long id) {//HashMap map = (HashMap)parent.getItemAtPosition(1);switch(position) {case 0: {Intent intent = new Intent(MainActivity.this,AddNewActivity.class);//0代表的是请求调转到添加界面startActivityForResult(intent, 0);break;}case 1: {break;}case 2: {break;}case 3: {break;}case 4: {break;}}}});}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if(requestCode==0) {if(resultCode == 1) {//增加用户成功   进行刷新ArrayList userData = DBHelper.getInstance(this).getUserList();adapter = new SimpleAdapter(this, userData, R.layout.list_item, new String[]{"imageid","name","mobilephone"}, new int[]{R.id.user_image,R.id.tv_showname,R.id.tv_showmobilephone});lv_userList.setAdapter(adapter);} else if(resultCode == 2) {//增加用户失败  不 进行刷新}}super.onActivityResult(requestCode, resultCode, data);}}

package test.contact;import java.util.HashMap;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.ImageButton;public class DetailActivity extends Activity {EditText et_name;EditText et_mobilePhone;EditText et_familyPhone;EditText et_officePhone;EditText et_position;EditText et_company;EditText et_address;EditText et_zipCode;EditText et_email;EditText et_otherContact;EditText et_remark;ImageButton btn_img;HashMap map;Button btn_modify;Button btn_delete;Button btn_return;boolean flag = false;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.detail);initWidget();setEditTextDisable();Intent intent = getIntent();map = (HashMap)intent.getSerializableExtra("usermap");displayData();btn_modify.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {setEditTextAble();if(flag) {flag = false;btn_modify.setText("修改");setEditTextDisable();} else {flag = true;btn_modify.setText("保存");setEditTextAble();}}});}public void initWidget() {et_name = (EditText) this.findViewById(R.id.et_name);et_mobilePhone = (EditText) this.findViewById(R.id.et_mobilephone);et_familyPhone = (EditText) this.findViewById(R.id.et_familyphone);et_officePhone = (EditText) this.findViewById(R.id.et_officephone);et_position = (EditText) this.findViewById(R.id.et_position);et_company = (EditText) this.findViewById(R.id.et_company);et_address = (EditText) this.findViewById(R.id.et_address);et_zipCode = (EditText) this.findViewById(R.id.et_zipcode);et_email = (EditText) this.findViewById(R.id.et_email);et_otherContact = (EditText) this.findViewById(R.id.et_other);et_remark = (EditText) this.findViewById(R.id.et_remark);btn_img = (ImageButton) this.findViewById(R.id.btn_img);btn_modify = (Button) this.findViewById(R.id.btn_modify);btn_delete = (Button) this.findViewById(R.id.btn_delete);btn_return = (Button)this.findViewById(R.id.btn_return);}private void setEditTextDisable() {et_name.setEnabled(false);et_mobilePhone.setEnabled(false);et_familyPhone.setEnabled(false);et_officePhone.setEnabled(false);et_position.setEnabled(false);et_company.setEnabled(false);et_address.setEnabled(false);et_zipCode.setEnabled(false);et_email.setEnabled(false);et_otherContact.setEnabled(false);et_remark.setEnabled(false);btn_img.setEnabled(false);}private void setEditTextAble() {et_name.setEnabled(true);et_mobilePhone.setEnabled(true);et_familyPhone.setEnabled(true);et_officePhone.setEnabled(true);et_position.setEnabled(true);et_company.setEnabled(true);et_address.setEnabled(true);et_zipCode.setEnabled(true);et_email.setEnabled(true);et_otherContact.setEnabled(true);et_remark.setEnabled(true);btn_img.setEnabled(true);}private void displayData() {et_name.setText(String.valueOf(map.get("name")));et_mobilePhone.setText(String.valueOf(map.get("mobilephone")));et_familyPhone.setText(String.valueOf(map.get("familyphone")));et_officePhone.setText(String.valueOf(map.get("officephone")));et_position.setText(String.valueOf(map.get("position")));et_company.setText(String.valueOf(map.get("company")));et_address.setText(String.valueOf(map.get("address")));et_zipCode.setText(String.valueOf(map.get("zipcode")));et_email.setText(String.valueOf(map.get("email")));et_otherContact.setText(String.valueOf(map.get("othercontact")));et_remark.setText(String.valueOf(map.get("remark")));btn_img.setImageResource(Integer.parseInt(String.valueOf(map.get("imageid"))));}}

package test.contact;import test.contact.db.DBHelper;import test.contact.entity.User;import android.app.Activity;import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.View.OnClickListener;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.Gallery;import android.widget.ImageButton;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.Toast;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ViewSwitcher.ViewFactory;public class AddNewActivity extends Activity {ImageButton btn_img;AlertDialog imageChooseDialog;Gallery gallery;ImageSwitcher is;int imagePosition;EditText et_name;EditText et_mobilePhone;EditText et_familyPhone;EditText et_officePhone;EditText et_position;EditText et_company;EditText et_address;EditText et_zipCode;EditText et_email;EditText et_otherContact;EditText et_remark;Button btn_save;Button btn_return;private int[] images = {R.drawable.icon,R.drawable.image1,R.drawable.image2,R.drawable.image3,R.drawable.image4,R.drawable.image5,R.drawable.image6,R.drawable.image7,R.drawable.image8,R.drawable.image9,R.drawable.image10,R.drawable.image11,R.drawable.image12,R.drawable.image13,R.drawable.image14,R.drawable.image15,R.drawable.image16,R.drawable.image17,R.drawable.image18,R.drawable.image19,R.drawable.image20,R.drawable.image21,R.drawable.image22,R.drawable.image23,R.drawable.image24,R.drawable.image25,R.drawable.image26,R.drawable.image27,R.drawable.image28,R.drawable.image29,R.drawable.image30};protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.addnew);initWidget();btn_save.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {String name = et_name.getText().toString();if(name.equals("")) {Toast.makeText(AddNewActivity.this, "姓名无能为空", Toast.LENGTH_LONG).show();return;}String mobilePhone = et_mobilePhone.getText().toString();String officePhone = et_officePhone.getText().toString();String familyPhone = et_familyPhone.getText().toString();String position = et_position.getText().toString();String company = et_company.getText().toString();String address = et_address.getText().toString();String email = et_email.getText().toString();String zipCode = et_zipCode.getText().toString();String otherContact = et_otherContact.getText().toString();String remark = et_remark.getText().toString();int imageId = images[imagePosition];User user = new User();user.address = address;user.company = company;user.email = email;user.familyPhone = familyPhone;user.imageId = imageId;user.mobilePhone = mobilePhone;user.officePhone = officePhone;user.name = name;user.otherContact = otherContact;user.position = position;user.remark = remark;user.zipCode = zipCode;//save user to databaselong success = DBHelper.getInstance(AddNewActivity.this).save(user);if(success != -1) {Toast.makeText(AddNewActivity.this, "添加成功!", Toast.LENGTH_LONG).show();//resultCode为1的时候代表增加用户成功，返回到主页面setResult(1);finish();} else {Toast.makeText(AddNewActivity.this, "添加失败，请重新操作!", Toast.LENGTH_LONG).show();//resultCode为2的时候代表增加用户失败，返回到主页面setResult(2);finish();}}});btn_img = (ImageButton) this.findViewById(R.id.btn_img);btn_img.setOnClickListener(new OnClickListener(){public void onClick(View v) {initImageChooseDialog();imageChooseDialog.show();}});btn_return.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View v) {setResult(2);finish();}});}public void initWidget() {et_name = (EditText) this.findViewById(R.id.et_name);et_mobilePhone = (EditText) this.findViewById(R.id.et_mobilephone);et_familyPhone = (EditText) this.findViewById(R.id.et_familyphone);et_officePhone = (EditText) this.findViewById(R.id.et_officephone);et_position = (EditText) this.findViewById(R.id.et_position);et_company = (EditText) this.findViewById(R.id.et_company);et_address = (EditText) this.findViewById(R.id.et_address);et_zipCode = (EditText) this.findViewById(R.id.et_zipcode);et_email = (EditText) this.findViewById(R.id.et_email);et_otherContact = (EditText) this.findViewById(R.id.et_other);et_remark = (EditText) this.findViewById(R.id.et_remark);btn_save = (Button) this.findViewById(R.id.btn_save);btn_return = (Button) this.findViewById(R.id.btn_return);   }private void initImageChooseDialog(){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("请选择图像");builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {btn_img.setImageResource(images[imagePosition%images.length]);}});builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {}});LayoutInflater inflater = LayoutInflater.from(this);View view = inflater.inflate(R.layout.imageswitch, null);gallery = (Gallery) view.findViewById(R.id.img_gallery);gallery.setAdapter(new ImageAdapter(this));gallery.setSelection(images.length/2);is = (ImageSwitcher) view.findViewById(R.id.image_switcher);gallery.setOnItemSelectedListener(new OnItemSelectedListener(){@Overridepublic void onItemSelected(AdapterView<?> parent, View view,int position, long id) {imagePosition = position;is.setImageResource(images[position%images.length]);}@Overridepublic void onNothingSelected(AdapterView<?> parent) {}});is.setFactory(new MyViewFactory(this));builder.setView(view);imageChooseDialog = builder.create();}class ImageAdapter extends BaseAdapter {private Context context;public ImageAdapter(Context context) {this.context = context;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn Integer.MAX_VALUE;}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn null;}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {ImageView iv = new ImageView(context);iv.setImageResource(images[position%images.length]);iv.setAdjustViewBounds(true);iv.setLayoutParams(new Gallery.LayoutParams(80, 80));iv.setPadding(15, 10, 15, 10);return iv;}}class MyViewFactory implements ViewFactory {private Context context;public MyViewFactory(Context context) {this.context = context;}@Overridepublic View makeView() {ImageView iv = new ImageView(context);iv.setLayoutParams(new ImageSwitcher.LayoutParams(90,90));return iv;}}}

package test.contact.entity;public class User {public int _id;public int imageId;public String name;public String mobilePhone;public String officePhone;public String familyPhone;public String position;public String company;public String address;public String zipCode;public String email;public String otherContact;public String remark;}

package test.contact.db;import java.util.ArrayList;import java.util.HashMap;import test.contact.entity.User;import android.content.ContentValues;import android.content.Context;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteOpenHelper;public class DBHelper extends SQLiteOpenHelper {public final static  String DB_NAME="contact";public final static int VERSION = 2;private static DBHelper instance = null;private SQLiteDatabase db;public static DBHelper getInstance(Context context) {if(instance == null) {instance = new DBHelper(context);}return instance;}private  void openDatabase() {if(db == null) {db = this.getWritableDatabase();}}private DBHelper(Context context) {super(context, DB_NAME, null, VERSION);}@Overridepublic void onCreate(SQLiteDatabase db) {StringBuffer tableCreate = new StringBuffer();tableCreate.append("create table user ( _id integer primary key autoincrement,").append("name text,").append("mobilephone text,").append("familyphone text,").append("officephone text,").append("position text,").append("company text,").append("address text,").append("email text,").append("othercontact text,").append("zipcode text,").append("remark text,").append("imageid int )");db.execSQL(tableCreate.toString());}@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {String sql = "drop table if exists user";db.execSQL(sql);onCreate(db);}public long save(User user) {openDatabase();ContentValues value = new ContentValues();value.put("name", user.name);value.put("mobilephone", user.mobilePhone);value.put("familyphone", user.familyPhone);value.put("officephone", user.officePhone);value.put("position", user.position);value.put("company", user.company);value.put("address", user.address);value.put("email", user.email);value.put("othercontact", user.otherContact);value.put("zipcode", user.zipCode);value.put("remark", user.remark);value.put("imageid", user.imageId);return db.insert("user", null, value);}public ArrayList getUserList() {openDatabase();Cursor cursor = db.query("user", null, null, null, null, null, null);ArrayList list = new ArrayList();while(cursor.moveToNext()) {HashMap map = new HashMap();map.put("_id", cursor.getInt(cursor.getColumnIndex("_id")));map.put("familyphone", cursor.getString(cursor.getColumnIndex("familyphone")));map.put("officephone", cursor.getString(cursor.getColumnIndex("officephone")));map.put("position", cursor.getString(cursor.getColumnIndex("position")));map.put("company", cursor.getString(cursor.getColumnIndex("company")));map.put("address", cursor.getString(cursor.getColumnIndex("address")));map.put("email", cursor.getString(cursor.getColumnIndex("email")));map.put("othercontact", cursor.getString(cursor.getColumnIndex("othercontact")));map.put("zipcode", cursor.getString(cursor.getColumnIndex("zipcode")));map.put("remark", cursor.getString(cursor.getColumnIndex("remark")));map.put("imageid", cursor.getInt(cursor.getColumnIndex("imageid")));map.put("name", cursor.getString(cursor.getColumnIndex("name")));map.put("mobilephone", cursor.getString(cursor.getColumnIndex("mobilephone")));list.add(map);}return list;}}