Android Intents and Intent Filters(一)

package com.flysnow.intent; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.ListActivity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.view.View; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.Toast; /** * Intents测试列表类 * @author 飞雪无情 * @since 2011-3-14 */ public class IntentsTestList extends ListActivity { private String ACTION_VIEW="com.flysnow.intent.ACTION_VIEW"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //定义ListAdapter setListAdapter(new SimpleAdapter(this, getData(), android.R.layout.simple_list_item_1, new String[] { "title" },new int[] {android.R.id.text1})); getListView().setTextFilterEnabled(true); //注册一个广播 super.registerReceiver(new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { Toast.makeText(context, "该Broadcast的Intent Filter值只设置了Action", Toast.LENGTH_SHORT).show(); } },new IntentFilter(ACTION_VIEW)); } @Override protected void onListItemClick(ListView l, View v, int position, long id) { Intent intent=(Intent)getData().get(position).get("intent"); Boolean isActivity=(Boolean)getData().get(position).get("isActivity"); if(isActivity){ startActivity(intent); }else{ sendBroadcast(intent); } } /** * 返回ListView需要的数据 * @return ListView需要的数据 */ private List<Map<String,Object>> getData() { List<Map<String,Object>> data=new ArrayList<Map<String,Object>>(); addItem(data, "空Action的Activity", new Intent(),true); addItem(data, "Action检测-Activity", new Intent(ACTION_VIEW),true); addItem(data, "Action检测-Broadcast", new Intent(ACTION_VIEW),false); return data; } /** * 给ListView添加数据 * @param data 存储数据的List * @param name 要显示的Title * @param intent 单击某一项时要启动的Activity * @param isActivity 启动的是否是Activity，true是，false为广播 */ private void addItem(List<Map<String,Object>> data, String name, Intent intent,boolean isActivity) { Map<String, Object> temp = new HashMap<String, Object>(); temp.put("title", name); temp.put("intent", intent); temp.put("isActivity", isActivity); data.add(temp); } }