(转摘)Android腾讯微薄客户端开发十二:博主的偶像

点击收听，显示此博主的偶像列表，点击列表，将显示偶像的详情界面

Java代码

publicclassIdolActivityextendsListActivityimplementsOnItemClickListener{
privateDataHelperdataHelper;
privateUserInfouser;
privateMyWeiboSyncweibo;
privateHandlerhandler;
privateAsyncImageLoaderasyncImageLoader;
privateIdolThreadthread;
privateProgressDialogprogressDialog;
privateJSONArrayarray;
privateIdolAdapteradapter;
privateListViewlistView;
privateStringname;
privateStringcurrentNick;//当前界面的昵称
privateViewtop_panel;
privateButtontop_btn_left;
privateButtontop_btn_right;
privateTextViewtop_title;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.idol);
setUpViews();//设置view
setUpListeners();//设置listenter
asyncImageLoader=newAsyncImageLoader();
dataHelper=newDataHelper(IdolActivity.this);
weibo=newMyWeiboSync();
List<UserInfo>userList=dataHelper.GetUserList(false);
SharedPreferencespreferences=getSharedPreferences("default_user",Activity.MODE_PRIVATE);
Stringnick=preferences.getString("user_default_nick","");
if(nick!=""){
user=dataHelper.getUserByName(nick,userList);
}
weibo.setAccessTokenKey(user.getToken());
weibo.setAccessTokenSecrect(user.getTokenSecret());
Intentintent=getIntent();
name=intent.getStringExtra("name");//获取从前面页面传递过来的数据
currentNick=intent.getStringExtra("nick");
top_title.setText(currentNick+"的偶像");
progressDialog=newProgressDialog(IdolActivity.this);//生成一个进度条
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
progressDialog.setTitle("请稍等");
progressDialog.setMessage("正在读取数据中!");
handler=newIdolHandler();
thread=newIdolThread();
thread.start();//开启一个线程获取数据
progressDialog.show();
}
privatevoidsetUpViews(){
listView=getListView();
top_panel=(View)findViewById(R.id.idol_top);
top_btn_left=(Button)top_panel.findViewById(R.id.top_btn_left);
top_btn_right=(Button)top_panel.findViewById(R.id.top_btn_right);
top_title=(TextView)top_panel.findViewById(R.id.top_title);
}
privatevoidsetUpListeners(){
listView.setOnItemClickListener(this);
}
classIdolThreadextendsThread{
@Override
publicvoidrun(){
StringjsonStr=weibo.getIdols(weibo.getAccessTokenKey(),weibo.getAccessTokenSecrect(),20,0,name);
try{
JSONObjectdataObj=newJSONObject(jsonStr).getJSONObject("data");
array=dataObj.getJSONArray("info");
}catch(JSONExceptione){
e.printStackTrace();
}
//通知handler处理数据
Messagemsg=handler.obtainMessage();
handler.sendMessage(msg);
}
}
classIdolHandlerextendsHandler{
@Override
publicvoidhandleMessage(Messagemsg){
adapter=newIdolAdapter(IdolActivity.this,array);
listView.setAdapter(adapter);
progressDialog.dismiss();//关闭进度条
}
}
classIdolAdapterextendsBaseAdapter{
privateContextcontext;
privateLayoutInflaterinflater;
privateJSONArrayarray;
publicIdolAdapter(Contextcontext,JSONArrayarray){
super();
this.context=context;
this.array=array;
this.inflater=LayoutInflater.from(context);
}
@Override
publicintgetCount(){
returnarray.length();
}
@Override
publicObjectgetItem(intposition){
returnarray.opt(position);
}
@Override
publiclonggetItemId(intposition){
returnposition;
}
@Override
publicViewgetView(finalintposition,ViewconvertView,ViewGroupparent){
asyncImageLoader=newAsyncImageLoader();
IdolViewHolderviewHolder=newIdolViewHolder();
JSONObjectdata=(JSONObject)array.opt(position);
convertView=inflater.inflate(R.layout.idol_list_item,null);
viewHolder.idol_headicon=(ImageView)convertView.findViewById(R.id.idol_headicon);
viewHolder.idol_nick=(TextView)convertView.findViewById(R.id.idol_nick);
viewHolder.idol_name=(TextView)convertView.findViewById(R.id.idol_name);
DrawablecachedImage=null;
if(data!=null){
try{
convertView.setTag(data.get("name"));
viewHolder.idol_nick.setText(data.getString("nick"));
viewHolder.idol_name.setText("@"+data.getString("name"));
//异步加载图片
cachedImage=asyncImageLoader.loadDrawable(data.getString("head")+"/100",viewHolder.idol_headicon,newImageCallback(){
@Override
publicvoidimageLoaded(DrawableimageDrawable,ImageViewimageView,StringimageUrl){
imageView.setImageDrawable(imageDrawable);
}
});
if(cachedImage==null){
viewHolder.idol_headicon.setImageResource(R.drawable.icon);
}
}catch(JSONExceptione){
e.printStackTrace();
}catch(Exceptione){
e.printStackTrace();
}
}
returnconvertView;
}
}
staticclassIdolViewHolder{
privateImageViewidol_headicon;
privateTextViewidol_nick;
privateTextViewidol_name;
}
@Override
publicvoidonItemClick(AdapterView<?>arg0,Viewarg1,intposition,longarg3){
Intentintent=newIntent(IdolActivity.this,UserInfoActivity.class);
try{
JSONObjectfansInfo=(JSONObject)array.opt(position);
JSONArraytweets=fansInfo.getJSONArray("tweet");
JSONObjecttweet=null;
if(tweets!=null&&tweets.length()>0){
tweet=(JSONObject)tweets.opt(0);
intent.putExtra("origtext",tweet.getString("text"));
intent.putExtra("timestamp",TimeUtil.getStandardTime(tweet.getLong("timestamp")));
}
intent.putExtra("name",fansInfo.getString("name"));
intent.putExtra("nick",fansInfo.getString("nick"));
}catch(JSONExceptione){
e.printStackTrace();
}
startActivity(intent);//跳转到用户信息界面
}
}

public class IdolActivity extends ListActivity implements OnItemClickListener{private DataHelper dataHelper;private UserInfo user;private MyWeiboSync weibo;private Handler handler;private AsyncImageLoader asyncImageLoader; private IdolThread thread;private ProgressDialog progressDialog;private JSONArray array;private IdolAdapter adapter;private ListView listView;private String name;private String currentNick;//当前界面的昵称private View top_panel;private Button top_btn_left;private Button top_btn_right;private TextView top_title;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.idol);setUpViews();//设置viewsetUpListeners();//设置listenterasyncImageLoader = new AsyncImageLoader();dataHelper = new DataHelper(IdolActivity.this);weibo = new MyWeiboSync();List<UserInfo> userList = dataHelper.GetUserList(false);SharedPreferences preferences = getSharedPreferences("default_user",Activity.MODE_PRIVATE);String nick = preferences.getString("user_default_nick", "");if (nick != "") {user = dataHelper.getUserByName(nick,userList);}weibo.setAccessTokenKey(user.getToken());weibo.setAccessTokenSecrect(user.getTokenSecret());Intent intent = getIntent();name = intent.getStringExtra("name");//获取从前面页面传递过来的数据currentNick = intent.getStringExtra("nick");top_title.setText(currentNick+"的偶像");progressDialog = new ProgressDialog(IdolActivity.this);// 生成一个进度条progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);progressDialog.setTitle("请稍等");progressDialog.setMessage("正在读取数据中!");handler = new IdolHandler();thread = new IdolThread();thread.start();//开启一个线程获取数据progressDialog.show();}private void setUpViews(){listView = getListView();top_panel = (View)findViewById(R.id.idol_top);top_btn_left = (Button)top_panel.findViewById(R.id.top_btn_left);top_btn_right = (Button)top_panel.findViewById(R.id.top_btn_right);top_title = (TextView)top_panel.findViewById(R.id.top_title);}private void setUpListeners(){listView.setOnItemClickListener(this);}class IdolThread extends Thread {@Overridepublic void run() {String jsonStr = weibo.getIdols(weibo.getAccessTokenKey(), weibo.getAccessTokenSecrect(), 20, 0, name);try {JSONObject dataObj = new JSONObject(jsonStr).getJSONObject("data");array = dataObj.getJSONArray("info");} catch (JSONException e) {e.printStackTrace();}//通知handler处理数据Message msg = handler.obtainMessage();handler.sendMessage(msg);}}class IdolHandler extends Handler { @Overridepublic void handleMessage(Message msg){adapter = new IdolAdapter(IdolActivity.this, array);listView.setAdapter(adapter);progressDialog.dismiss();// 关闭进度条}}class IdolAdapter extends BaseAdapter {private Context context;private LayoutInflater inflater;private JSONArray array;public IdolAdapter(Context context, JSONArray array) {super();this.context = context;this.array = array;this.inflater = LayoutInflater.from(context);}@Overridepublic int getCount() {return array.length();}@Overridepublic Object getItem(int position) {return array.opt(position);}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {asyncImageLoader = new AsyncImageLoader();IdolViewHolder viewHolder = new IdolViewHolder();JSONObject data = (JSONObject)array.opt(position);convertView = inflater.inflate(R.layout.idol_list_item, null);viewHolder.idol_headicon = (ImageView) convertView.findViewById(R.id.idol_headicon);viewHolder.idol_nick = (TextView) convertView.findViewById(R.id.idol_nick);viewHolder.idol_name = (TextView) convertView.findViewById(R.id.idol_name);Drawable cachedImage = null;if(data!=null){try {convertView.setTag(data.get("name"));viewHolder.idol_nick.setText(data.getString("nick"));viewHolder.idol_name.setText("@"+data.getString("name"));//异步加载图片cachedImage = asyncImageLoader.loadDrawable(data.getString("head")+"/100",viewHolder.idol_headicon, new ImageCallback(){                    @Override                    public void imageLoaded(Drawable imageDrawable,ImageView imageView, String imageUrl) {                        imageView.setImageDrawable(imageDrawable);                    }                });if(cachedImage == null) {viewHolder.idol_headicon.setImageResource(R.drawable.icon);}} catch (JSONException e) {e.printStackTrace();} catch (Exception e) {e.printStackTrace();}}return convertView;}}static class IdolViewHolder {private ImageView idol_headicon;private TextView idol_nick;private TextView idol_name;}@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {Intent intent = new Intent(IdolActivity.this,UserInfoActivity.class);try {JSONObject fansInfo = (JSONObject)array.opt(position);JSONArray tweets = fansInfo.getJSONArray("tweet");JSONObject tweet = null;if(tweets!=null&&tweets.length()>0){tweet = (JSONObject)tweets.opt(0);intent.putExtra("origtext", tweet.getString("text"));intent.putExtra("timestamp", TimeUtil.getStandardTime(tweet.getLong("timestamp")));}intent.putExtra("name", fansInfo.getString("name"));intent.putExtra("nick", fansInfo.getString("nick"));} catch (JSONException e) {e.printStackTrace();}startActivity(intent);//跳转到用户信息界面}}

Java代码

<?xmlversion="1.0"encoding="utf-8"?>
<RelativeLayoutandroid:layout_width="fill_parent"android:layout_height="fill_parent"android:background="#ffffffff"
xmlns:android="http://schemas.android.com/apk/res/android">
<includeandroid:id="@+id/idol_top"layout="@layout/top_panel"android:layout_alignParentTop="true"/>
<ListViewandroid:id="@id/android:list"android:layout_below="@id/idol_top"android:layout_width="fill_parent"android:cacheColorHint="#00000000"
android:layout_height="fill_parent"android:layout_weight="1"android:divider="@drawable/list_divider"/>
<RelativeLayoutandroid:layout_width="fill_parent"android:layout_height="40.0dip"android:layout_alignParentBottom="true">
<Buttonandroid:id="@+id/idol_back_btn"android:layout_width="40.0dip"android:drawableTop="@drawable/btn_back_selector"android:background="@drawable/bottom_back_bg"
android:layout_height="40.0dip"android:layout_alignParentLeft="true"/>
<Buttonandroid:id="@+id/idol_tohome_btn"android:layout_width="40.0dip"
android:layout_height="40.0dip"android:drawableTop="@drawable/btn_home_selector"android:background="@drawable/bottom_home_bg"android:layout_alignParentRight="true"/>
</RelativeLayout>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?><RelativeLayout android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffffffff"xmlns:android="http://schemas.android.com/apk/res/android"><include android:id="@+id/idol_top" layout="@layout/top_panel" android:layout_alignParentTop="true"/><ListView android:id="@id/android:list" android:layout_below="@id/idol_top" android:layout_width="fill_parent" android:cacheColorHint="#00000000"android:layout_height="fill_parent" android:layout_weight="1" android:divider="@drawable/list_divider"/><RelativeLayout android:layout_width="fill_parent" android:layout_height="40.0dip" android:layout_alignParentBottom="true"><Button android:id="@+id/idol_back_btn" android:layout_width="40.0dip" android:drawableTop="@drawable/btn_back_selector" android:background="@drawable/bottom_back_bg"android:layout_height="40.0dip"  android:layout_alignParentLeft="true"/><Button android:id="@+id/idol_tohome_btn" android:layout_width="40.0dip"android:layout_height="40.0dip" android:drawableTop="@drawable/btn_home_selector" android:background="@drawable/bottom_home_bg" android:layout_alignParentRight="true"/></RelativeLayout></RelativeLayout>

Java代码

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:paddingTop="3.0dip"android:orientation="horizontal"android:background="@drawable/listitem_selector"android:layout_width="fill_parent"android:layout_height="wrap_content">
<RelativeLayoutandroid:layout_width="50.0dip"android:layout_height="50.0dip"android:layout_weight="0.0">
<ImageViewandroid:id="@+id/idol_headicon"android:layout_width="45.0dip"android:layout_height="45.0dip"android:scaleType="fitCenter"android:layout_centerInParent="true"/>
</RelativeLayout>
<RelativeLayoutandroid:orientation="vertical"android:layout_width="wrap_content"android:layout_height="wrap_content"android:padding="4.0dip"android:layout_weight="1.0">
<TextViewandroid:id="@+id/idol_nick"android:textColor="#000000"android:layout_width="wrap_content"android:layout_height="32.0dip"android:textSize="14.0sp"android:layout_alignParentLeft="true"/>
<TextViewandroid:id="@+id/idol_name"android:layout_marginLeft="6.0dip"android:layout_below="@id/idol_nick"android:textColor="#ff000000"android:layout_width="wrap_content"android:layout_height="32.0dip"android:textSize="8.0sp"android:layout_alignParentLeft="true"/>
</RelativeLayout>
</LinearLayout>
http://helloandroid.iteye.com/blog/1136761

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