1、
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cn.itcast.db"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<uses-library android:name="android.test.runner" />
<activity android:name=".MainActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider android:name=".PersonContentProvider" android:authorities="cn.itcast.provides.personprovider"/>
</application>
<uses-sdk android:minSdkVersion="8" />
<instrumentation android:name="android.test.InstrumentationTestRunner"
android:targetPackage="cn.itcast.db" android:label="Tests for My App" />
</manifest>
2、
package cn.itcast.db;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import cn.itcast.domain.Person;
import cn.itcast.service.PersonService;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
public class MainActivity extends Activity {
private static final String TAG = "MainActivity";
private ListView listView;
private PersonService service;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button)this.findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ContentResolver contentResolver = getContentResolver();
Uri insertUri = Uri.parse("content://cn.itcast.provides.personprovider/person");
ContentValues values = new ContentValues();
values.put("name", "laofang");
values.put("phone", "13800029333");
values.put("amount", "1000");
contentResolver.insert(insertUri, values);
}
});
listView = (ListView)this.findViewById(R.id.listView);
service = new PersonService(this);
/* List<Person> persons = service.getScrollData(0, 5);
List<HashMap<String, Object>> data = new ArrayList<HashMap<String,Object>>();
for(Person person : persons){
HashMap<String, Object> item = new HashMap<String, Object>();
item.put("name", person.getName());
item.put("phone", person.getPhone());
item.put("amount", person.getAmount());
data.add(item);
}
SimpleAdapter adapter = new SimpleAdapter(this, data, R.layout.item,
new String[]{"name","phone", "amount"}, new int[]{R.id.name, R.id.phone, R.id.amount});
listView.setAdapter(adapter);
listView.setOnItemClickListener(new ItemClickListener());
*/
Cursor cursor = service.getCursorScrollData(0, 5);
SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(this, R.layout.item, cursor,
new String[]{"name","phone","amount"}, new int[]{R.id.name, R.id.phone, R.id.amount});
listView.setAdapter(cursorAdapter);
listView.setOnItemClickListener(new ItemClickListener());
}
private final class ItemClickListener implements OnItemClickListener{
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
ListView lView = (ListView)parent;
/*HashMap<String, Object> item = (HashMap<String, Object>)lView.getItemAtPosition(position);
Log.i(TAG, item.get("name").toString());
Toast.makeText(MainActivity.this, item.get("name").toString(), 1).show();*/
Cursor cursor = (Cursor)lView.getItemAtPosition(position);
String name = cursor.getString(cursor.getColumnIndex("name"));
Toast.makeText(MainActivity.this, name, 1).show();
}
}
}
3、
package cn.itcast.db;
import cn.itcast.service.DBOpenHelper;
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.net.Uri;
public class PersonContentProvider extends ContentProvider {
private static final UriMatcher sMatcher = new UriMatcher(UriMatcher.NO_MATCH);
private static final int PERSONS = 1;
private static final int PERSON = 2;
private DBOpenHelper dbOpenHelper;
static{
sMatcher.addURI("cn.itcast.provides.personprovider", "person", PERSONS);
sMatcher.addURI("cn.itcast.provides.personprovider", "person/#", PERSON);
}
// content://cn.itcast.provides.personprovider/person
@Override
public Uri insert(Uri uri, ContentValues values) {
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
switch (sMatcher.match(uri)) {
case PERSONS:
long rowid = db.insert("person", "name", values);
getContext().getContentResolver().notifyChange(uri, null);
return ContentUris.withAppendedId(uri, rowid);
default:
throw new IllegalArgumentException("Unknown Uri:"+ uri);
}
}
// content://cn.itcast.provides.personprovider/person 删除表中的所有记录
// content://cn.itcast.provides.personprovider/person/10 删除表中指定id的记录
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
int num = 0;
switch (sMatcher.match(uri)) {
case PERSONS:
num = db.delete("person", selection, selectionArgs);
break;
case PERSON:
long personid = ContentUris.parseId(uri);
String where = "personid="+ personid;
if(selection!=null && !"".equals(selection)){
where = where + " and "+ selection;
}
num = db.delete("person", where, selectionArgs);
break;
default:
throw new IllegalArgumentException("Unknown Uri:"+ uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return num;
}
@Override
public String getType(Uri uri) {// gif image/gif text/plain
switch (sMatcher.match(uri)) {
case PERSONS:
return "vnd.android.cursor.dir/person";
case PERSON:
return "vnd.android.cursor.item/person";
default:
throw new IllegalArgumentException("Unknown Uri:"+ uri);
}
}
@Override
public boolean onCreate() {
this.dbOpenHelper = new DBOpenHelper(this.getContext());
return true;
}
// content://cn.itcast.provides.personprovider/person 获取表中的所有记录
// content://cn.itcast.provides.personprovider/person/10 获取表中指定id的记录
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
switch (sMatcher.match(uri)) {
case PERSONS:
return db.query("person", projection, selection, selectionArgs, null, null, sortOrder);
case PERSON:
long personid = ContentUris.parseId(uri);
String where = "personid="+ personid;
if(selection!=null && !"".equals(selection)){
where = where + " and "+ selection;
}
return db.query("person", projection, where, selectionArgs, null, null, sortOrder);
default:
throw new IllegalArgumentException("Unknown Uri:"+ uri);
}
}
// content://cn.itcast.provides.personprovider/person 更新表中的所有记录
// content://cn.itcast.provides.personprovider/person/10 更新表中指定id的记录
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
int num = 0;
switch (sMatcher.match(uri)) {
case PERSONS:
num = db.update("person", values, selection, selectionArgs);
break;
case PERSON:
long personid = ContentUris.parseId(uri);
String where = "personid="+ personid;
if(selection!=null && !"".equals(selection)){
where = where + " and "+ selection;
}
num = db.update("person", values, where, selectionArgs);
break;
default:
throw new IllegalArgumentException("Unknown Uri:"+ uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return num;
}
}
4、
package cn.itcast.db;
import java.util.List;
import cn.itcast.domain.Person;
import cn.itcast.service.OtherPersonService;
import android.test.AndroidTestCase;
import android.util.Log;
public class OtherPersonServiceTest extends AndroidTestCase {
private static final String TAG = "PersonServiceTest";
public void testSave() throws Throwable{
OtherPersonService service = new OtherPersonService(this.getContext());
Person person = new Person();
person.setName("zhangxiaoxiao");
person.setPhone("13671555567");
service.save(person);
Person person2 = new Person();
person2.setName("laobi");
person2.setPhone("13679993567");
service.save(person2);
Person person3 = new Person();
person3.setName("lili");
person3.setPhone("13888323567");
service.save(person3);
Person person4 = new Person();
person4.setName("zhaoxiaogang");
person4.setPhone("1367132300");
service.save(person4);
}
public void testFind() throws Throwable{
OtherPersonService service = new OtherPersonService(this.getContext());
Person person = service.find(1);
Log.i(TAG, person.toString());
}
public void testUpdate() throws Throwable{
OtherPersonService service = new OtherPersonService(this.getContext());
Person person = service.find(1);
person.setName("liming");
service.update(person);
}
public void testCount() throws Throwable{
OtherPersonService service = new OtherPersonService(this.getContext());
Log.i(TAG, service.getCount()+"");
}
public void testScrollData() throws Throwable{
OtherPersonService service = new OtherPersonService(this.getContext());
List<Person> persons = service.getScrollData(0, 3);
for(Person person : persons){
Log.i(TAG, person.toString());
}
}
public void testDelete() throws Throwable{
OtherPersonService service = new OtherPersonService(this.getContext());
service.delete(1);
}
}
5、
package cn.itcast.db;
import java.util.List;
import cn.itcast.domain.Person;
import cn.itcast.service.DBOpenHelper;
import cn.itcast.service.PersonService;
import android.test.AndroidTestCase;
import android.util.Log;
public class PersonServiceTest extends AndroidTestCase {
private static final String TAG = "PersonServiceTest";
public void testDBCreate() throws Throwable{
DBOpenHelper dbOpenHelper = new DBOpenHelper(this.getContext());
dbOpenHelper.getWritableDatabase();
}
public void testSave() throws Throwable{
PersonService service = new PersonService(this.getContext());
Person person = new Person();
person.setName("zhangxiaoxiao");
person.setPhone("13671555567");
person.setAmount(100);
service.save(person);
Person person2 = new Person();
person2.setName("laobi");
person2.setPhone("13679993567");
person2.setAmount(50);
service.save(person2);
Person person3 = new Person();
person3.setName("lili");
person3.setPhone("13888323567");
person3.setAmount(80);
service.save(person3);
Person person4 = new Person();
person4.setName("zhaoxiaogang");
person4.setPhone("1367132300");
person4.setAmount(90);
service.save(person4);
}
public void testFind() throws Throwable{
PersonService service = new PersonService(this.getContext());
Person person = service.find(1);
Log.i(TAG, person.toString());
}
public void testUpdate() throws Throwable{
PersonService service = new PersonService(this.getContext());
Person person = service.find(1);
person.setName("liming");
service.update(person);
}
public void testCount() throws Throwable{
PersonService service = new PersonService(this.getContext());
Log.i(TAG, service.getCount()+"");
}
public void testScrollData() throws Throwable{
PersonService service = new PersonService(this.getContext());
List<Person> persons = service.getScrollData(0, 3);
for(Person person : persons){
Log.i(TAG, person.toString());
}
}
public void testDelete() throws Throwable{
PersonService service = new PersonService(this.getContext());
service.delete(1);
}
public void testPayment() throws Throwable{
PersonService service = new PersonService(this.getContext());
service.payment();
}
}
6、
package cn.itcast.domain;
public class Person {
private Integer id;
private String name;
private String phone;
private Integer amount;
public Integer getAmount() {
return amount;
}
public void setAmount(Integer amount) {
this.amount = amount;
}
public Person(){}
public Person(Integer id, String name, String phone, Integer amount) {
this.id = id;
this.name = name;
this.phone = phone;
this.amount = amount;
}
public Person(Integer id, String name, String phone) {
this.id = id;
this.name = name;
this.phone = phone;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
@Override
public String toString() {
return "Person [amount=" + amount + ", id=" + id + ", name=" + name
+ ", phone=" + phone + "]";
}
}
7、
package cn.itcast.service;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DBOpenHelper extends SQLiteOpenHelper {
public DBOpenHelper(Context context) {
super(context, "itcast.db", null, 2);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE person (personid integer primary key autoincrement, name varchar(20))");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("ALTER TABLE person ADD phone VARCHAR(12) NULL");
db.execSQL("ALTER TABLE person ADD amount integer");
}
}
8、
package cn.itcast.service;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import cn.itcast.domain.Person;
public class PersonService {
private DBOpenHelper dbOpenHelper;
public PersonService(Context context){
dbOpenHelper = new DBOpenHelper(context);
}
public void payment(){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
db.beginTransaction();//开启事务
try{
db.execSQL("update person set amount=amount-10 where personid=?", new Object[]{1});
db.execSQL("update person set amount=amount+10 where personid=?", new Object[]{2});
db.setTransactionSuccessful();//设置事务标志为成功，在结束事务时才会提供事务，否则回滚事务
}finally{
db.endTransaction();//结束事务
}
}
public void save(Person person){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
db.execSQL("insert into person(name, phone, amount) values(?,?,?)",
new Object[]{person.getName(), person.getPhone(), person.getAmount()});
//db.close();
}
public void update(Person person){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
db.execSQL("update person set name=?,phone=?, amount=? where personid=?",
new Object[]{person.getName(), person.getPhone(), person.getAmount(), person.getId()});
}
public void delete(Integer id){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
db.execSQL("delete from person where personid=?", new Object[]{id});
}
public Person find(Integer id){
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
Cursor cursor = db.rawQuery("select * from person where personid=?", new String[]{id.toString()});
if(cursor.moveToFirst()){
int personid = cursor.getInt(cursor.getColumnIndex("personid"));
String name = cursor.getString(cursor.getColumnIndex("name"));
String phone = cursor.getString(cursor.getColumnIndex("phone"));
int amount = cursor.getInt(cursor.getColumnIndex("amount"));
cursor.close();
return new Person(personid, name, phone, amount);
}
return null;
}
public List<Person> getScrollData(int offset, int maxResult){
List<Person> persons = new ArrayList<Person>();
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
Cursor cursor = db.rawQuery("select * from person limit ?,?",
new String[]{String.valueOf(offset), String.valueOf(maxResult)});
while(cursor.moveToNext()){
int personid = cursor.getInt(cursor.getColumnIndex("personid"));
String name = cursor.getString(cursor.getColumnIndex("name"));
String phone = cursor.getString(cursor.getColumnIndex("phone"));
int amount = cursor.getInt(cursor.getColumnIndex("amount"));
persons.add(new Person(personid, name, phone, amount));
}
return persons;
}
public Cursor getCursorScrollData(int offset, int maxResult){
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
return db.rawQuery("select personid as _id,name,phone,amount from person limit ?,?",
new String[]{String.valueOf(offset), String.valueOf(maxResult)});
}
public long getCount(){
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
Cursor cursor = db.rawQuery("select count(*) from person", null);
cursor.moveToFirst();
return cursor.getLong(0);
}
}
9、
package cn.itcast.service;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import cn.itcast.domain.Person;
public class OtherPersonService {
private DBOpenHelper dbOpenHelper;
public OtherPersonService(Context context){
dbOpenHelper = new DBOpenHelper(context);
}
public void save(Person person){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
ContentValues values = new ContentValues();
values.put("name", person.getName());
values.put("phone", person.getPhone());
values.put("amount", person.getAmount());
db.insert("person", null, values); // insert into person(personid) values(NULL)
//db.close();
}
public void update(Person person){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
ContentValues values = new ContentValues();
values.put("name", person.getName());
values.put("phone", person.getPhone());
values.put("amount", person.getAmount());
db.update("person", values, "personid=?", new String[]{person.getId().toString()});
}
public void delete(Integer id){
SQLiteDatabase db = dbOpenHelper.getWritableDatabase();
db.delete("person", "personid=?", new String[]{id.toString()});
}
public Person find(Integer id){
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
Cursor cursor = db.query("person", new String[]{"personid","name","phone"},
"personid=?", new String[]{id.toString()}, null, null, null);
if(cursor.moveToFirst()){
int personid = cursor.getInt(cursor.getColumnIndex("personid"));
String name = cursor.getString(cursor.getColumnIndex("name"));
String phone = cursor.getString(cursor.getColumnIndex("phone"));
int amount = cursor.getInt(cursor.getColumnIndex("amount"));
cursor.close();
return new Person(personid, name, phone, amount);
}
return null;
}
public List<Person> getScrollData(int offset, int maxResult){
List<Person> persons = new ArrayList<Person>();
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
Cursor cursor = db.query("person", null, null, null, null, null, null, offset+ ","+ maxResult);
while(cursor.moveToNext()){
int personid = cursor.getInt(cursor.getColumnIndex("personid"));
String name = cursor.getString(cursor.getColumnIndex("name"));
String phone = cursor.getString(cursor.getColumnIndex("phone"));
int amount = cursor.getInt(cursor.getColumnIndex("amount"));
persons.add(new Person(personid, name, phone, amount));
}
return persons;
}
public long getCount(){
SQLiteDatabase db = dbOpenHelper.getReadableDatabase();
Cursor cursor = db.query("person", new String[]{"count(*)"} , null, null, null, null, null);
cursor.moveToFirst();
return cursor.getLong(0);
}
}
10、
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="100dip"
android:layout_height="wrap_content"
android:text="姓名"
android:id="@+id/name"
/>
<TextView
android:layout_width="100dip"
android:layout_height="wrap_content"
android:text="电话"
android:id="@+id/phone"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="存款"
android:id="@+id/amount"
/>
</LinearLayout>
11、
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="往内容提供者添加数据"
android:id="@+id/button"
/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="100dip"
android:layout_height="wrap_content"
android:text="姓名"
/>
<TextView
android:layout_width="100dip"
android:layout_height="wrap_content"
android:text="电话"
/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="存款"
/>
</LinearLayout>
<ListView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/listView"
/>
</LinearLayout>
扫一扫
5624
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
