Android腾讯微薄客户端开发十二:博主的偶像
程序员文章站
2022-03-02 23:05:20
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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
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;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.idol);
setUpViews();//设置view
setUpListeners();//设置listenter
asyncImageLoader = 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 {
@Override
public 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 {
@Override
public 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);
}
@Override
public int getCount() {
return array.length();
}
@Override
public Object getItem(int position) {
return array.opt(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public 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;
}
@Override
public 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
}
}
<?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>
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns: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"> <RelativeLayout android:layout_width="50.0dip" android:layout_height="50.0dip" android:layout_weight="0.0"> <ImageView android:id="@+id/idol_headicon" android:layout_width="45.0dip" android:layout_height="45.0dip" android:scaleType="fitCenter" android:layout_centerInParent="true" /> </RelativeLayout> <RelativeLayout android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="4.0dip" android:layout_weight="1.0"> <TextView android: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"/> <TextView android: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>
