9-29

来源：互联网发布：ios10移动网络开关编辑：程序博客网时间：2024/05/17 04:06

1 静态变量传参

在广播接收者里将

private List<Map<String, Object>> datalists数据传到activity中去，

setDataList("tanlin",datalits);
//采用gson可以传递任何对象，

public void setDataList(String tag,List<Map<String,Object>> datalist) {   if (null == datalist|| datalist.size() <= 0)      return;   Gson gson = new Gson();   String strJson = gson.toJson(datalist);   editor.putString(tag,strJson).commit();}
在MessageActivity中
public  static  List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();

listView= (ListView) findViewById(R.id.notice_content);
msgAdapter=new MsgAdapter(MessageCenterActivity.this,getDataList("tanlin"));
listView.setAdapter(msgAdapter);
//取数据的方法
public List<Map<String,Object>> getDataList(String tag) {    String strJson = sharedPreferences.getString(tag,null);    if (null == strJson) {        return null;    }    Gson gson = new Gson();    List<Map<String,Object>> datalist= gson.fromJson(strJson,            new TypeToken<List<Map<String,Object>>>() {            }.getType());    return datalist;}

//在收到广播中更新
private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {    @Override    public void onReceive(Context context, Intent intent) {        if(intent == null){            return;        }             String command = intent.getAction();        if(MessageCenterActivity.HOME_REFRESH_ACTION.equals(command)){            msgAdapter.notifyDataSetChanged();        }    }};

2 TextView点击背景色改变
android:background="@drawable/textview_background"

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">        <item android:state_focused="true" android:drawable="@color/textview_background"></item>        <item android:state_checked="true" android:drawable="@color/textview_background"></item>        <item android:state_pressed="true" android:drawable="@color/textview_background"></item></selector>

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