編輯：關於Android編程
配置：
Provider:
public class PersonProvider extends ContentProvider {
private SQLiteDatabase db;
//創建uri匹配器
UriMatcher um = new UriMatcher(UriMatcher.NO_MATCH);
{
//添加匹配規則
//arg0:主機名
//arg1:路徑
//arg2:匹配碼
um.addURI("com.itheima.people", "person", 1);//content://com.itheima.people/person
um.addURI("com.itheima.people", "handsome", 2);//content://com.itheima.people/handsome
um.addURI("com.itheima.people", "person/#", 3);//content://com.itheima.people/person/10
}
//內容提供者創建時調用
@Override
public boolean onCreate() {
MyOpenHelper oh = new MyOpenHelper(getContext());
db = oh.getWritableDatabase();
return false;
}
//values:其他應用要插的數據
@Override
public Uri insert(Uri uri, ContentValues values) {
if(um.match(uri) == 1){
db.insert("person", null, values);
//數據庫改變了,內容提供者發出通知
//arg0:通知發到哪個uri上，注冊在這個uri上的內容觀察者都可以收到通知
getContext().getContentResolver().notifyChange(uri, null);
}
else if(um.match(uri) == 2){
db.insert("handsome", null, values);
getContext().getContentResolver().notifyChange(uri, null);
}
else{
throw new IllegalArgumentException("uri傳錯啦傻逼");
}
return uri;
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
int i = 0;
if(um.match(uri) == 1){
i = db.delete("person", selection, selectionArgs);
}
else if(um.match(uri) == 2){
i = db.delete("handsome", selection, selectionArgs);
}
else{
throw new IllegalArgumentException("uri又傳錯啦傻逼");
}
return i;
}
@Override
public int update(Uri uri, ContentValues values, String selection,
String[] selectionArgs) {
int i = db.update("person", values, selection, selectionArgs);
return i;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
Cursor cursor = null;
if(um.match(uri) == 1){
cursor = db.query("person", projection, selection, selectionArgs, null, null, sortOrder, null);
}
else if(um.match(uri) == 2){
cursor = db.query("handsome", projection, selection, selectionArgs, null, null, sortOrder, null);
}
else if(um.match(uri) == 3){
//取出uri末尾攜帶的數字
long id = ContentUris.parseId(uri);
cursor = db.query("person", projection, "_id = ?", new String[]{"" + id}, null, null, sortOrder, null);
}
return cursor;
}
//返回通過指定uri獲取的數據的mimetype
@Override
public String getType(Uri uri) {
if(um.match(uri) == 1){
return "vnd.android.cursor.dir/person";
}
else if(um.match(uri) == 2){
return "vnd.android.cursor.dir/handsome";
}
else if(um.match(uri) == 3){
return "vnd.android.cursor.item/person";
}
return null;
}
}
OpenHelper:
public class MyOpenHelper extends SQLiteOpenHelper {
public MyOpenHelper(Context context) {
super(context, "people.db", null, 2);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table person(_id integer primary key autoincrement, name char(10), phone char(20), money integer(10))");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("create table handsome(_id integer primary key autoincrement, name char(10), phone char(20))");
}
}
調用：
public void insert(View v){
//通過內容提供者把數據插入01數據庫
//1.獲取contentResolver
ContentResolver resolver = getContentResolver();
//2.訪問內容提供者，插入數據
ContentValues values = new ContentValues();
values.put("name", "流氓潤");
values.put("phone", 138992);
values.put("money", 14000);
//arg0:指定內容提供者的主機名
resolver.insert(Uri.parse("content://com.itheima.people/person"), values);
values.clear();
values.put("name", "侃哥");
values.put("phone", 15999);
//arg0:指定內容提供者的主機名
resolver.insert(Uri.parse("content://com.itheima.people/handsome"), values);
}
public void delete(View v){
ContentResolver resolver = getContentResolver();
int i = resolver.delete(Uri.parse("content://com.itheima.people"), "name = ?", new String[]{"鳳姐"});
System.out.println(i);
}
public void update(View v){
ContentResolver resolver = getContentResolver();
ContentValues values = new ContentValues();
values.put("money", 16001);
int i = resolver.update(Uri.parse("content://com.itheima.people"), values, "name = ?", new String[]{"春曉"});
System.out.println(i);
}
public void query(View v){
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(Uri.parse("content://com.itheima.people/person"), null, null, null, null);
while(cursor.moveToNext()){
String name = cursor.getString(1);
String phone = cursor.getString(2);
String money = cursor.getString(3);
System.out.println(name + ";" + phone + ";" + money);
}
}
public void queryOne(View v){
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(Uri.parse("content://com.itheima.people/person/4"), null, null, null, null);
if(cursor.moveToNext()){
String name = cursor.getString(1);
String phone = cursor.getString(2);
String money = cursor.getString(3);
System.out.println(name + ";" + phone + ";" + money);
}
}
public void click1(View v){
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(Uri.parse("content://sms"), new String[]{"address", "date", "type", "body"}, null, null, null);
while(cursor.moveToNext()){
String address = cursor.getString(0);
long date = cursor.getLong(1);
int type = cursor.getInt(2);
String body = cursor.getString(3);
System.out.println(address + ";" + date + ";" + type + ";" + body);
}
}
public void click(View v){
Thread t = new Thread(){
@Override
public void run() {
try {
sleep(7000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ContentResolver resolver = getContentResolver();
ContentValues values = new ContentValues();
values.put("address", 95555);
values.put("date", System.currentTimeMillis());
values.put("type", 1);
values.put("body", "您尾號為XXXX的招行儲蓄卡收到轉賬1,000,000");
resolver.insert(Uri.parse("content://sms"), values);
}
};
t.start();
}
public void click(View v){
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(Uri.parse("content://com.android.contacts/raw_contacts"), new String[]{"contact_id"},
null, null, null);
while(cursor.moveToNext()){
String contactId = cursor.getString(0);
//使用聯系人id作為where條件去查詢data表，查詢出屬於該聯系人的信息
Cursor cursorData = resolver.query(Uri.parse("content://com.android.contacts/data"), new String[]{"data1", "mimetype"}, "raw_contact_id = ?",
new String[]{contactId}, null);
// Cursor cursorData = resolver.query(Uri.parse("content://com.android.contacts/data"), null, "raw_contact_id = ?",
// new String[]{contactId}, null);
// int count = cursorData.getColumnCount();
// for (int i = 0; i < count; i++) {
// System.out.println(cursorData.getColumnName(i));
// }
Contact contact = new Contact();
while(cursorData.moveToNext()){
String data1 = cursorData.getString(0);
String mimetype = cursorData.getString(1);
// System.out.println(data1 + ";" + mimetype);
if("vnd.android.cursor.item/email_v2".equals(mimetype)){
contact.setEmail(data1);
}
else if("vnd.android.cursor.item/phone_v2".equals(mimetype)){
contact.setPhone(data1);
}
else if("vnd.android.cursor.item/name".equals(mimetype)){
contact.setName(data1);
}
}
System.out.println(contact.toString());
}
}
public void click(View v){
ContentResolver resolver = getContentResolver();
//先查詢最新的聯系人的主鍵，主鍵+1，就是要插入的聯系人id
Cursor cursor = resolver.query(Uri.parse("content://com.android.contacts/raw_contacts"), new String[]{"_id"}, null, null, null);
int _id = 0;
if(cursor.moveToLast()){
_id = cursor.getInt(0);
}
_id++;
//插入聯系人id
ContentValues values = new ContentValues();
values.put("contact_id", _id);
resolver.insert(Uri.parse("content://com.android.contacts/raw_contacts"), values);
//把具體聯系人信息插入data表
values.clear();
values.put("data1", "剪刀手坤哥");
values.put("mimetype", "vnd.android.cursor.item/name");
values.put("raw_contact_id", _id);
resolver.insert(Uri.parse("content://com.android.contacts/data"), values);
values.clear();
values.put("data1", "8899667");
values.put("mimetype", "vnd.android.cursor.item/phone_v2");
values.put("raw_contact_id", _id);
resolver.insert(Uri.parse("content://com.android.contacts/data"), values);
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//注冊內容觀察者，觀察者就生效了，可以接受內容提供者發出的通知
ContentResolver resolver = getContentResolver();
//arg0:指定接收哪個內容提供者發出的通知
resolver.registerContentObserver(Uri.parse("content://sms"),
true, //如果為true,以這個uri作為開頭的uri上的數據改變了,該內容觀察者都會收到通知
new MyObserver(new Handler()));
}
class MyObserver extends ContentObserver{
public MyObserver(Handler handler) {
super(handler);
// TODO Auto-generated constructor stub
}
@Override
public void onChange(boolean selfChange) {
// TODO Auto-generated method stub
super.onChange(selfChange);
System.out.println("短信數據庫改變");
}
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
showfagment01();
}
private void showfagment01() {
//1.創建fragment對象
Fragment01 fragment1 = new Fragment01();
//2.獲取fragment管理器
FragmentManager fm = getFragmentManager();
//3.開啟事務
FragmentTransaction ft = fm.beginTransaction();
//4.顯示fragment
//arg0:設置把fragment顯示在哪個容器中
ft.replace(R.id.fl, fragment1);
//5.提交
ft.commit();
}
public void click1(View v){
showfagment01();
}
public void click2(View v){
//1.創建fragment對象
Fragment02 fragment2 = new Fragment02();
//2.獲取fragment管理器
FragmentManager fm = getFragmentManager();
//3.開啟事務
FragmentTransaction ft = fm.beginTransaction();
//4.顯示fragment
//arg0:設置把fragment顯示在哪個容器中
ft.replace(R.id.fl, fragment2);
//5.提交
ft.commit();
}
public void click3(View v){
//1.創建fragment對象
Fragment03 fragment3 = new Fragment03();
//2.獲取fragment管理器
FragmentManager fm = getFragmentManager();
//3.開啟事務
FragmentTransaction ft = fm.beginTransaction();
//4.顯示fragment
//arg0:設置把fragment顯示在哪個容器中
ft.replace(R.id.fl, fragment3);
//5.提交
ft.commit();
}
public void click4(View v){
EditText et_main = (EditText) findViewById(R.id.et_main);
String text = et_main.getText().toString();
fragment1.setText(text);
}
public void setText(String text){
TextView tv_main = (TextView) findViewById(R.id.tv_main);
tv_main.setText(text);
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView rocketImage = (ImageView) findViewById(R.id.iv);
//設置iv的背景圖
rocketImage.setBackgroundResource(R.drawable.plusstolensee);
//獲取iv的背景
AnimationDrawable rocketAnimation = (AnimationDrawable) rocketImage.getBackground();
//開始播放
rocketAnimation.start();
}
private ImageView iv;
private TranslateAnimation ta;
private ScaleAnimation sa;
private AlphaAnimation aa;
private RotateAnimation ra;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = (ImageView) findViewById(R.id.iv);
}
public void translate(View v){
//定義位移補間動畫
// TranslateAnimation ta = new TranslateAnimation(-100, 100, -60, 60);
ta = new TranslateAnimation(Animation.RELATIVE_TO_SELF, -1.5f, Animation.RELATIVE_TO_SELF, 1.5f,
Animation.RELATIVE_TO_SELF, -2, Animation.RELATIVE_TO_SELF, 2);
//定義動畫持續時間
ta.setDuration(2000);
//設置重復次數
ta.setRepeatCount(1);
//設置重復模式
ta.setRepeatMode(Animation.REVERSE);
//在結束位置上填充動畫
ta.setFillAfter(true);
//播放動畫
iv.startAnimation(ta);
}
public void scale(View v){
// ScaleAnimation sa = new ScaleAnimation(0.2f, 2, 0.2f, 2);
// ScaleAnimation sa = new ScaleAnimation(0.2f, 2, 0.2f, 2, iv.getWidth()/2, iv.getHeight()/2);
sa = new ScaleAnimation(0.3f, 2, 0.2f, 1, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
//定義動畫持續時間
sa.setDuration(2000);
//設置重復次數
sa.setRepeatCount(1);
//設置重復模式
sa.setRepeatMode(Animation.REVERSE);
//在結束位置上填充動畫
sa.setFillAfter(true);
//播放動畫
iv.startAnimation(sa);
}
public void alpha(View v){
aa = new AlphaAnimation(1, 0.2f);
aa.setDuration(2000);
aa.setRepeatCount(1);
aa.setRepeatMode(Animation.REVERSE);
aa.setFillAfter(true);
iv.startAnimation(aa);
}
public void rotate(View v){
// RotateAnimation ra = new RotateAnimation(0, 720);
// RotateAnimation ra = new RotateAnimation(0, 720, iv.getWidth()/2, iv.getHeight()/2);
ra = new RotateAnimation(0, -720, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
ra.setDuration(2000);
ra.setRepeatCount(1);
ra.setRepeatMode(Animation.REVERSE);
ra.setFillAfter(true);
iv.startAnimation(ra);
}
public void fly(View v){
//創建動畫集合
AnimationSet set = new AnimationSet(false);
//把動畫添加至集合
set.addAnimation(ta);
set.addAnimation(sa);
set.addAnimation(aa);
set.addAnimation(ra);
//開始播放集合
iv.startAnimation(set);
}
private ImageView iv;
private ObjectAnimator oa1;
private ObjectAnimator oa2;
private ObjectAnimator oa3;
private ObjectAnimator oa4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = (ImageView) findViewById(R.id.iv);
iv.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "點我上miss", 0).show();
}
});
}
public void translate(View v){
// TranslateAnimation ta = new TranslateAnimation(-100, 100, 0, 0);
// ta.setDuration(2000);
// ta.setFillAfter(true);
// iv.startAnimation(ta);
//創建屬性動畫師
//arg0:要操作的對象
//arg1:要修改的屬性的名字
oa1 = ObjectAnimator.ofFloat(iv, "translationX", 0, 70, 30, 100);
oa1.setDuration(2000);
oa1.setRepeatCount(1);
oa1.setRepeatMode(ValueAnimator.REVERSE);
oa1.start();
}
public void scale(View v){
oa2 = ObjectAnimator.ofFloat(iv, "scaleX", 0.2f, 2, 1, 2.5f);
oa2.setDuration(2000);
oa2.setRepeatCount(1);
oa2.setRepeatMode(ValueAnimator.REVERSE);
oa2.start();
}
public void alpha(View v){
oa3 = ObjectAnimator.ofFloat(iv, "alpha", 0.2f, 1);
oa3.setDuration(2000);
oa3.setRepeatCount(1);
oa3.setRepeatMode(ValueAnimator.REVERSE);
oa3.start();
}
public void rotate(View v){
oa4 = ObjectAnimator.ofFloat(iv, "rotation", 0, 360, 180, 720);
oa4.setDuration(2000);
oa4.setRepeatCount(1);
oa4.setRepeatMode(ValueAnimator.REVERSE);
oa4.start();
}
public void fly(View v){
//創建動畫師集合
AnimatorSet set = new AnimatorSet();
//排隊飛
// set.playSequentially(oa1, oa2, oa3, oa4);
//一起飛
set.playTogether(oa1, oa2, oa3, oa4);
//設置屬性動畫師操作的對象
set.setTarget(iv);
set.start();
}
public void xml(View v){
//使用動畫師填充器把xml資源文件填充成屬性動畫對象
Animator animator = AnimatorInflater.loadAnimator(this, R.animator.property_animation);
animator.setTarget(iv);
animator.start();
}
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