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Android httpclient获取到JSON数据并展示到ListView

java

2020-8-2

package com.demo.app.ui;

import java.util.List;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;

import com.demo.app.AppContext;
import com.demo.app.AppException;
import com.demo.app.R;
import com.demo.app.adapter.MainListViewAdapter;
import com.demo.app.bean.News;
import com.demo.app.bean.NewsList;
import com.demo.app.common.UIHelper;
import com.demo.app.widget.MyListView;

public class MainActivity extends Activity {
	private MyListView listview;
	private List<News> newsList;
	private AppContext appContext;// 全局Context
	private MainListViewAdapter listViewAdapter;
	private ProgressDialog selectorDialog;
	private Button bt_news, bt_forum, bt_cartype, bt_favour, bt_more;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		appContext = (AppContext) getApplication();
		// 网络连接判断
		if (!appContext.isNetworkConnected())
			UIHelper.ToastMessage(this, R.string.network_not_connected);
		init();
		initData();
	}

	private void init() {
		bt_news = (Button) findViewById(R.id.bt_news);
		bt_forum = (Button) findViewById(R.id.bt_forum);
		bt_cartype = (Button) findViewById(R.id.bt_cartype);
		bt_favour = (Button) findViewById(R.id.bt_favour);
		bt_more = (Button) findViewById(R.id.bt_more);
		bt_news.setSelected(true);
		bt_news.setOnClickListener(onClick(bt_news));
		bt_forum.setOnClickListener(onClick(bt_forum));
		bt_cartype.setOnClickListener(onClick(bt_cartype));
		bt_favour.setOnClickListener(onClick(bt_favour));
		bt_more.setOnClickListener(onClick(bt_more));
		listview = (MyListView) findViewById(R.id.news_listview);
		selectorDialog = ProgressDialog.show(this, null, "正在加载,请稍候...", true,
				false);

	}

	private View.OnClickListener onClick(final Button btn) {
		return new View.OnClickListener() {
			public void onClick(View v) {

				bt_news.setSelected(false);
				bt_forum.setSelected(false);
				bt_cartype.setSelected(false);
				bt_favour.setSelected(false);
				bt_more.setSelected(false);
				if (btn == bt_news) {
					bt_news.setSelected(true);
				} else if (btn == bt_forum) {
					bt_forum.setSelected(true);
				} else if (btn == bt_cartype) {
					bt_cartype.setSelected(true);
				} else if (btn == bt_favour) {
					bt_favour.setSelected(true);
				} else if (btn == bt_more) {
					bt_more.setSelected(true);
				}
			}
		};
	}

	Handler mHandler = new Handler() {
		public void handleMessage(Message msg) {
			selectorDialog.cancel();
			if (msg.what == 1) {
				newsList = (List<News>) msg.obj;
				listViewAdapter = new MainListViewAdapter(MainActivity.this,
						newsList);
				listview.setAdapter(listViewAdapter);
			} else if (msg.what == -1) {
				UIHelper.ToastMessage(MainActivity.this, "没有数据");
			} else if (msg.what == -2) {
				UIHelper.ToastMessage(MainActivity.this,
						R.string.xml_parser_failed);
			}
		}
	};

	private void initData() {

		selectorDialog.show();
		new Thread() {
			public void run() {
				Message msg = new Message();
				boolean isRefresh = false;
				try {
					NewsList list = appContext.getNewsList();
					if (list.getNewsCount() > 0) {
						msg.what = 1;
						msg.obj = list.getNewslist();
						appContext.saveObject(list, "newslist_");
					} else {
						msg.what = -1;
					}
				} catch (AppException e) {
					e.printStackTrace();
					msg.what = -2;
					msg.obj = e;
				}
				mHandler.sendMessage(msg);
			}
		}.start();
	}
}

资源下载此资源下载价格为3D币(VIP免费),请先
资源文件列表
.classpath , 611
.project , 848
.settings/org.eclipse.jdt.core.prefs , 177
AndroidManifest.xml , 1346
bin/AndroidManifest.xml , 1346
bin/classes.dex , 1252304
bin/classes/com/demo/app/adapter/MainListViewAdapter$ViewHolder.class , 826
bin/classes/com/demo/app/adapter/MainListViewAdapter.class , 3927
bin/classes/com/demo/app/api/ApiClient.class , 11054
bin/classes/com/demo/app/api/JSONProvider.class , 4458
bin/classes/com/demo/app/AppConfig.class , 5473
bin/classes/com/demo/app/AppContext$1.class , 877
bin/classes/com/demo/app/AppContext.class , 11579
bin/classes/com/demo/app/AppException$1.class , 667
bin/classes/com/demo/app/AppException.class , 6520
bin/classes/com/demo/app/AppManager.class , 2668
bin/classes/com/demo/app/bean/Base.class , 694
bin/classes/com/demo/app/bean/News.class , 1114
bin/classes/com/demo/app/bean/NewsList.class , 1942
bin/classes/com/demo/app/bean/Notice.class , 1558
bin/classes/com/demo/app/bean/URLs.class , 2997
bin/classes/com/demo/app/BuildConfig.class , 333
bin/classes/com/demo/app/common/BitmapManager$1.class , 1811
bin/classes/com/demo/app/common/BitmapManager$2.class , 1285
bin/classes/com/demo/app/common/BitmapManager.class , 4938
bin/classes/com/demo/app/common/FileUtils.class , 8886
bin/classes/com/demo/app/common/ImageUtils.class , 17163
bin/classes/com/demo/app/common/MethodsCompat.class , 1540
bin/classes/com/demo/app/common/StringUtils$1.class , 772
bin/classes/com/demo/app/common/StringUtils$2.class , 763
bin/classes/com/demo/app/common/StringUtils.class , 5844
bin/classes/com/demo/app/common/UIHelper$1.class , 822
bin/classes/com/demo/app/common/UIHelper$2.class , 908
bin/classes/com/demo/app/common/UIHelper$3.class , 1085
bin/classes/com/demo/app/common/UIHelper$4.class , 946
bin/classes/com/demo/app/common/UIHelper$5.class , 765
bin/classes/com/demo/app/common/UIHelper.class , 8195
bin/classes/com/demo/app/R$attr.class , 322
bin/classes/com/demo/app/R$color.class , 23965
bin/classes/com/demo/app/R$dimen.class , 2688
bin/classes/com/demo/app/R$drawable.class , 1447
bin/classes/com/demo/app/R$id.class , 869
bin/classes/com/demo/app/R$layout.class , 492
bin/classes/com/demo/app/R$menu.class , 370
bin/classes/com/demo/app/R$string.class , 2655
bin/classes/com/demo/app/R$style.class , 525
bin/classes/com/demo/app/R.class , 655
bin/classes/com/demo/app/ui/MainActivity$1.class , 1864
bin/classes/com/demo/app/ui/MainActivity$2.class , 1368
bin/classes/com/demo/app/ui/MainActivity$3.class , 1565
bin/classes/com/demo/app/ui/MainActivity.class , 4099
bin/classes/com/demo/app/widget/MyListView.class , 1373
bin/dexedLibs/android-support-v4-1066c405bdee763b0d7532390eb28270.jar , 189224
bin/dexedLibs/android-support-v4-650a8865dfb10012c1078f9bcf89860b.jar , 189231
bin/dexedLibs/annotations-090d5654f82d064adf0d03ee4e0eaebc.jar , 943
bin/dexedLibs/annotations-28e0d440ffae02fd40b6eb8dc327994c.jar , 943
bin/dexedLibs/commons-httpclient-3.1-0969573825b9ed385340a0804b740c58.jar , 137052
bin/dexedLibs/commons-httpclient-3.1-7f8f87adc987e88acb2522b735595fcf.jar , 137052
bin/jarlist.cache , 120
bin/ListViewJSON.apk , 684424
bin/resources.ap_ , 320084
bin/res/crunch/drawable-hdpi/ad_layout_bg.png , 192107
bin/res/crunch/drawable-hdpi/beautiful_progress_dialog_vertical_divider.png , 97
bin/res/crunch/drawable-hdpi/booking_list_minor_bg.9.png , 1926
bin/res/crunch/drawable-hdpi/headtab_bg.png , 185
bin/res/crunch/drawable-hdpi/icon_cartype_normal.png , 1091
bin/res/crunch/drawable-hdpi/icon_cartype_selected.png , 2025
bin/res/crunch/drawable-hdpi/icon_favour_normal.png , 1549
bin/res/crunch/drawable-hdpi/icon_favour_selected.png , 2197
bin/res/crunch/drawable-hdpi/icon_forum_normal.png , 1316
bin/res/crunch/drawable-hdpi/icon_forum_selected.png , 2331
bin/res/crunch/drawable-hdpi/icon_more_normal.png , 1724
bin/res/crunch/drawable-hdpi/icon_more_selected.png , 2731
bin/res/crunch/drawable-hdpi/icon_news_normal.png , 1245
bin/res/crunch/drawable-hdpi/icon_news_selected.png , 2190
bin/res/crunch/drawable-hdpi/ic_launcher.png , 5964
bin/res/crunch/drawable-hdpi/line2.png , 85
bin/res/crunch/drawable-hdpi/umeng_socialize_share_pic.png , 564
bin/res/crunch/drawable-hdpi/widget_head_bg.png , 94
bin/res/crunch/drawable-mdpi/ic_launcher.png , 3112
bin/res/crunch/drawable-xhdpi/ic_launcher.png , 9355
bin/res/crunch/drawable-xxhdpi/ic_launcher.png , 17889
bin/res/crunch/drawable/icon_cartype_normal.png , 1616
bin/res/crunch/drawable/nt_icon_cartype_normal.png , 2264
bin/res/drawable-hdpi/ad_layout_bg.png , 192107
bin/res/drawable-hdpi/beautiful_progress_dialog_vertical_divider.png , 97
bin/res/drawable-hdpi/booking_list_minor_bg.9.png , 1926
bin/res/drawable-hdpi/headtab_bg.png , 185
bin/res/drawable-hdpi/icon_cartype_normal.png , 1091
bin/res/drawable-hdpi/icon_cartype_selected.png , 2025
bin/res/drawable-hdpi/icon_favour_normal.png , 1549
bin/res/drawable-hdpi/icon_favour_selected.png , 2197
bin/res/drawable-hdpi/icon_forum_normal.png , 1316
bin/res/drawable-hdpi/icon_forum_selected.png , 2331
bin/res/drawable-hdpi/icon_more_normal.png , 1724
bin/res/drawable-hdpi/icon_more_selected.png , 2731
bin/res/drawable-hdpi/icon_news_normal.png , 1245
bin/res/drawable-hdpi/icon_news_selected.png , 2190
bin/res/drawable-hdpi/ic_launcher.png , 5964
bin/res/drawable-hdpi/line2.png , 85
bin/res/drawable-hdpi/umeng_socialize_share_pic.png , 564
bin/res/drawable-hdpi/widget_head_bg.png , 94
bin/res/drawable-mdpi/ic_launcher.png , 3112
bin/res/drawable-xhdpi/ic_launcher.png , 9355
bin/res/drawable-xxhdpi/ic_launcher.png , 17889
bin/res/drawable/icon_cartype_normal.png , 1616
bin/res/drawable/nt_icon_cartype_normal.png , 2264
gen/com/demo/app/BuildConfig.java , 154
gen/com/demo/app/R.java , 47155
ic_launcher-web.png , 51394
libs/android-support-v4.jar , 484258
libs/commons-httpclient-3.1.jar , 305001
proguard-project.txt , 781
project.properties , 563
res/drawable-hdpi/ad_layout_bg.png , 192107
res/drawable-hdpi/beautiful_progress_dialog_vertical_divider.png , 97
res/drawable-hdpi/booking_list_minor_bg.9.png , 2480
res/drawable-hdpi/headtab_bg.png , 185
res/drawable-hdpi/icon_cartype_normal.png , 1091
res/drawable-hdpi/icon_cartype_selected.png , 2025
res/drawable-hdpi/icon_favour_normal.png , 1549
res/drawable-hdpi/icon_favour_selected.png , 2197
res/drawable-hdpi/icon_forum_normal.png , 1316
res/drawable-hdpi/icon_forum_selected.png , 2331
res/drawable-hdpi/icon_more_normal.png , 1724
res/drawable-hdpi/icon_more_selected.png , 2731
res/drawable-hdpi/icon_news_normal.png , 1245
res/drawable-hdpi/icon_news_selected.png , 2190
res/drawable-hdpi/ic_launcher.png , 7658
res/drawable-hdpi/line2.png , 85
res/drawable-hdpi/umeng_socialize_share_pic.png , 564
res/drawable-hdpi/widget_head_bg.png , 94
res/drawable-mdpi/ic_launcher.png , 3777
res/drawable-xhdpi/ic_launcher.png , 12516
res/drawable-xxhdpi/ic_launcher.png , 24777
res/drawable/icon_cartype_normal.png , 1616
res/drawable/icon_cartype_seletor.xml , 313
res/drawable/icon_favour_seletor.xml , 311
res/drawable/icon_forum_seletor.xml , 309
res/drawable/icon_more_seletor.xml , 307
res/drawable/icon_news_seletor.xml , 307
res/drawable/list_item_drawable_bg.xml , 240
res/drawable/nt_icon_cartype_normal.png , 2264
res/drawable/widget_bar_bg.xml , 356
res/layout/activity_main.xml , 1003
res/layout/listview_item.xml , 2898
res/layout/main_footer.xml , 1707
res/layout/main_header.xml , 640
res/menu/main.xml , 223
res/values-sw600dp/dimens.xml , 201
res/values-sw720dp-land/dimens.xml , 275
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