- 博客(21)
- 收藏
- 关注
RSS订阅原创 Day17
音乐播放器及各种功能public class Main2Activity extends AppCompatActivity { private Button btn; private MediaPlayer player; private Button stop; private Button puase; private Button restart;...
2019-11-20 21:08:15
157
原创 day16
day16mainMyServiceaidlmainpublic class MainActivity extends AppCompatActivity { private EditText ed1; private EditText ed2; private IMyAidlInterface iMyAidlInterface; private TextVie...
2019-11-19 21:07:16
186
原创 Day15
day15IntentServiceIntentServicemainpublic class MainActivity extends AppCompatActivity { private Intent receiver; private MyReceiver myReceiver; @Override protected void onCreate(Bu...
2019-11-18 21:09:16
241
原创 day16
day13mainmain2MyServicemainpublic class MainActivity extends AppCompatActivity { private Button btn1; private Button btn2; private Button btn3; private Button btn4; private Butto...
2019-11-15 21:12:42
216
原创 BroadcastReceiver
BroadcastReceiverBroadcastReceivermainMyReceiverMyReceiver2MyReceiver3BroadcastReceivermainpublic class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle sa...
2019-11-14 21:09:55
102
原创 day10ContentProvider
ContentProviderContentProviderMyContentProvider接收ContentProviderMyContentProviderpublic class MyContentProvider extends ContentProvider { private MySqlHelp help; private SQLiteDatabase data...
2019-11-12 21:20:03
95
原创 day09Sql
SqliteSql帮助类主类Sql帮助类public class Mysqlhelp extends SQLiteOpenHelper {//自定义sql帮助类继承SQLiteOpenHelper /** * * @param context * @param name * @param factory * @param version...
2019-11-11 20:34:54
116
原创 day06
ViewPager适配器public class MyAdpter extends PagerAdapter { private List<Integer> lists; private Context context; public MyAdpter(List<Integer> lists, Context context) { ...
2019-11-07 21:08:17
92
原创 day05
Fragment2activity向fragment传输数据activity代码fragment代码fragment传fragmentactivity向fragment传输数据activity代码public class MainActivity extends AppCompatActivity { private EditText ed; private Button s...
2019-11-06 19:49:34
176
1
原创 day04
Fragment动态加载底部导航切换fragment动态加载public class MainActivity extends AppCompatActivity { private FragmentManager manager; private BlankFragment fragment; @Override protected void onCreate...
2019-11-05 20:39:33
90
原创 day03
双击退出，Notitfcation 通知双击退出普通通知进度条通知分组大图和列表双击退出 private long last=0; @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode==KeyEvent.KEYCODE_BACK){ if...
2019-11-04 20:57:10
185
原创 专高一day01Dialog
Dialogjava代码布局java代码public class MainActivity extends AppCompatActivity { private Button btn; private Button btn2; private String a=""; private Button btn3; private Button btn4;...
2019-11-01 20:30:08
125
原创 day16
day16MessengerServerServiceclientApplicationMessengerServerServicepublic class ServerService extends Service { public ServerService() { } Messenger messenger= new Messenger(new Handler(...
2019-10-22 19:57:21
113
原创 day11
ContentProvider和BroadCastReceiverContentProviderMyObservermainBroadCastReceiverMyReceivermainContentProviderMyObserverpublic class MyObserver extends ContentObserver { private ContentResolver r...
2019-10-16 16:43:02
109
原创 week02
work121public class FileUtils { public static void write_json(String json) { if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){ File file=Environme...
2019-10-13 23:04:35
116
原创 day08
ViewPager和SharedPreferences存储+SD卡存储ViewPagerSharedPreferences存储+SD卡存储SharedPreferences存储SD卡储存ViewPagerprotected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);...
2019-10-13 21:09:27
220
原创 Fragment和ViewPager
Fragment和ViewPagerFragment传值Fragment向Activity传值(接口回调)Fragment向Fragment传值(直接查找id)Fragment向Fragment传值(接口回调)ViewPagerPagerAdapter适配器(自动翻页 )ViewPager与Fragment结合(翻页)Fragment传值Fragment向Activity传值(接口回调)ma...
2019-10-11 20:05:12
316
原创 第四天 fragment
Fragment加载fragmentfragment切换activity向fragment传输数据activity代码fragment代码加载fragmentpublic class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceSt...
2019-10-10 20:31:37
92
原创 day02
Menu菜单系统菜单OptionsMenujava代码xml文件上下文菜单ContextMenujava文件xml文件弹出菜单java文件xmlPopupWindowjava文件style布局系统菜单OptionsMenujava代码@Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInf...
2019-09-28 21:14:41
133
原创 设计模式
设计模式单例饿汉懒汉构造者User类测试类单例饿汉public class Hunger { private static Hunger hunger=new Hunger(); private Hunger() { } public static Hunger getHunger() { return hunger; }}懒汉public clas...
2019-09-26 17:16:30
249
原创 你猜我发的啥
静夜思窗前明月光疑是地上霜举头望明月低头思故乡窗前明月光package com.example.exam20;import android.util.Log;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpU...
2019-09-26 15:35:31
110
空空如也
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人