android 多文件上传(有进度条)例子源码

一款还不错的静态壁纸代码 核心代码：package com.example.wallpaperchange;import android.os.Bundle;import android.app.Activity;import android.app.AlarmManager;import android.app.PendingIntent;import android.app.Service;import android.content.Intent;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast; public class MainActivity extends Activity { AlarmManager aManager; Button start,stop; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); start = (Button)findViewById(R.id.start); stop = (Button)findViewById(R.id.stop); aManager = (AlarmManager)getSystemService(Service.ALARM_SERVICE); //指定ChangeService组件 Intent intent = new Intent(MainActivity.this,ChangeService.class); //创建PendingIntent对象 final PendingIntent pi = PendingIntent.getService( MainActivity.this, 0, intent, 0); start.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub aManager.setRepeating(AlarmManager.RTC_WAKEUP, 0, 5000, pi); start.setEnabled(false); stop.setEnabled(true); Toast.makeText(MainActivity.this, "壁纸定时更换启动成功", 5000).show(); } }); stop.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub start.setEnabled(true); stop.setEnabled(false); aManager.cancel(pi); } }); } }

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android联系人带字母检索源码/** * 联系人列表适配器。 * * @author guolin */public class ContactAdapter extends ArrayAdapter { /** * 需要渲染的item布局文件 */ private int resource; /** * 字母表分组工具 */ private SectionIndexer mIndexer; public ContactAdapter(Context context, int textViewResourceId, List objects) { super(context, textViewResourceId, objects); resource = textViewResourceId; } @Override public View getView(int position, View convertView, ViewGroup parent) { Contact contact = getItem(position); LinearLayout layout = null; if (convertView == null) { layout = (LinearLayout) LayoutInflater.from(getContext()).inflate(resource, null); } else { layout = (LinearLayout) convertView; } TextView name = (TextView) layout.findViewById(R.id.name); LinearLayout sortKeyLayout = (LinearLayout) layout.findViewById(R.id.sort_key_layout); TextView sortKey = (TextView) layout.findViewById(R.id.sort_key); name.setText(contact.getName()); int section = mIndexer.getSectionForPosition(position); if (position == mIndexer.getPositionForSection(section)) { sortKey.setText(contact.getSortKey()); sortKeyLayout.setVisibility(View.VISIBLE); } else { sortKeyLayout.setVisibility(View.GONE); } return layout; } /** * 给当前适配器传入一个分组工具。 * * @param indexer */ public void setIndexer(SectionIndexer indexer) { mIndexer = indexer; }}

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这个项目是一个简单的教务查询系统，该练手小项目希望能帮助到大家，熟悉SSM的整合开发