Android 只有创建视图层次结构的原始线程才能接触其视图异常
这个类有一个例外：“只有创建视图层次结构的原始线程才能接触它的视图” 我知道这可能是因为我使用了async，但我是android开发的新手，甚至在阅读Stackoverflow上的其他案例时，我都没有安排好。欢迎光临 我的班级：Android 只有创建视图层次结构的原始线程才能接触其视图异常,android,json,asynchronous,Android,Json,Asynchronous,这个类有一个例外：“只有创建视图层次结构的原始线程才能接触它的视图” 我知道这可能是因为我使用了async，但我是android开发的新手，甚至在阅读Stackoverflow上的其他案例时，我都没有安排好。欢迎光临 我的班级： package com.test.example; import java.util.ArrayList; import java.util.HashMap; import org.json.JSONArray; import or
package com.test.example;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ImageButton;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class ShopsActivity extends Activity {
private ProgressDialog pDialog;
// URL to get contacts JSON
private static String url = "mywebserviceurl";
// JSON Node names
private static final String TAG_NAME = "shop_name";
private static final String TAG_ADDRESS_STRING = "shop_address";
TextView shop_address;
TextView shop_name;
TextView api;
private ListView list;
private ImageButton button1;
private ImageButton button2;
private ImageButton button3;
private ImageButton button4;
// contacts JSONArray
JSONArray contacts = null;
// Hashmap for ListView
ArrayList<HashMap<String, String>> oslist = new ArrayList<HashMap<String, String>>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_shops);
// Calling async task to get json
new GetJson().execute();
}
/**
* Async task class to get json by making HTTP call
* */
private class GetJson extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
pDialog = new ProgressDialog(ShopsActivity.this);
pDialog.setMessage("Mise à jour...");
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonStr = sh.makeServiceCall(url, ServiceHandler.GET);
Log.d("Response: ", "> " + jsonStr);
JSONArray array = null;
try {
array = new JSONArray(jsonStr);
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
for (int i = 0; i <array.length(); i++){
JSONObject jsonObject = array.getJSONObject(i);
String id = jsonObject.getString("id");
System.out.println("id --->" + id);
String url = jsonObject.getString("url");
System.out.println("url --->" + url);
String created_at = jsonObject.getString("created_at");
System.out.println("created_at --->" + created_at);
String updated_at = jsonObject.getString("updated_at");
System.out.println("updated_at --->" + updated_at);
String name = jsonObject.getString("name");
System.out.println("name --->" + name);
JSONArray photos_urls = jsonObject.getJSONArray("photos_urls");
System.out.println("photos_urls --->" + photos_urls);
String address_string = jsonObject.getString("address_string");
System.out.println("address_string --->" + address_string);
JSONObject booklet = jsonObject.getJSONObject("booklet");
String id_booklet = booklet.getString("id");
System.out.println("id_booklet --->" + id_booklet);
String url_booklet = booklet.getString("url");
System.out.println("url_booklet --->" + url_booklet);
String created_at_booklet = booklet.getString("created_at");
System.out.println("created_at_booklet --->" + created_at_booklet);
String updated_at_booklet = booklet.getString("updated_at");
System.out.println("updated_at_booklet --->" + updated_at_booklet);
String document_url = booklet.getString("document_url");
System.out.println("document_url --->" + document_url);
String presented = booklet.getString("presented");
System.out.println("presented --->" + presented);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_NAME, name);
map.put(TAG_ADDRESS_STRING, address_string);
oslist.add(map);
list=(ListView)findViewById(R.id.list);
ListAdapter adapter = new SimpleAdapter(ShopsActivity.this, oslist,
R.layout.listview_item_row,
new String[] { TAG_NAME, TAG_ADDRESS_STRING }, new int[] {
R.id.name_shop, R.id.address_shop});
list.setAdapter(adapter);
/* list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(ShopsActivity.this, ShopActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.animationin, R.anim.animationout);
}
});*/
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (pDialog.isShowing())
pDialog.dismiss();
}
}
}
package com.test.example；
导入java.util.ArrayList；
导入java.util.HashMap；
导入org.json.JSONArray；
导入org.json.JSONException；
导入org.json.JSONObject；
导入android.app.Activity；
导入android.app.ListActivity；
导入android.app.ProgressDialog；
导入android.content.Intent；
导入android.os.AsyncTask；
导入android.os.Bundle；
导入android.util.Log；
导入android.view.view；
导入android.widget.AdapterView；
导入android.widget.AdapterView.OnItemClickListener；
导入android.widget.ImageButton；
导入android.widget.ListAdapter；
导入android.widget.ListView；
导入android.widget.simpledapter；
导入android.widget.TextView；
公共类ShopsActivity扩展了活动{
私人对话；
//获取联系人JSON的URL
私有静态字符串url=“mywebserviceurl”；
//JSON节点名称
私有静态最终字符串TAG_NAME=“shop_NAME”；
私有静态最终字符串TAG\u ADDRESS\u String=“shop\u ADDRESS”；
TextView商店地址；
TextView商店名称；
TextView api；
私有列表视图列表；
私有图像按钮1；
私有图像按钮2；
私有图像按钮3；
私有图像按钮4；
//联系JSONArray
JSONArray联系人=null；
//ListView的Hashmap
ArrayList oslist=新的ArrayList（）；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_shops）；
//调用异步任务以获取json
新建GetJson（）.execute（）；
}
/**
*异步任务类通过HTTP调用获取json
* */
私有类GetJson扩展异步任务{
@凌驾
受保护的void onPreExecute（）{
super.onPreExecute（）；
//显示进度对话框
pDialog=新建进度对话框（ShopsActivity.this）；
pDialog.setMessage（“Miseájour…”）；
pDialog.setCancelable（假）；
pDialog.show（）；
}
@凌驾
受保护的Void doInBackground（Void…arg0）{
//创建服务处理程序类实例
ServiceHandler sh=新的ServiceHandler（）；
//向url发出请求并获得响应
字符串jsonStr=sh.makeServiceCall（url，ServiceHandler.GET）；
Log.d（“响应：”、“>”+jsonStr）；
JSONArray数组=null；
试一试{
数组=新的JSONArray（jsonStr）；
}捕获（JSONException e1）{
//TODO自动生成的捕捉块
e1.printStackTrace（）；
}
试一试{
对于（int i=0；i值
HashMap=newHashMap（）；
地图放置（标签名称、名称）；
map.put（标记\地址\字符串，地址\字符串）；
添加（地图）；
list=（ListView）findViewById（R.id.list）；
ListAdapter=new SimpleAdapter（ShopsActivity.this，oslist，
R.layout.listview\u项目\u行，
新字符串[]{TAG_NAME，TAG_ADDRESS_String}，新int[]{
R.id.name_shop，R.id.address_shop}）；
list.setAdapter（适配器）；
/*list.setOnItemClickListener（新的AdapterView.OnItemClickListener（）{
@凌驾
public void onItemClick（AdapterView父级、视图、，
内部位置，长id）{
意向意向=新意向（ShopsActivity.this、ShopActivity.class）；
星触觉（意向）；
覆盖转换（R.anim.animationin，R.anim.animationout）；
}
});*/
}
}捕获（JSONException e）{
e、 printStackTrace（）；
}
返回null；
}
@凌驾
受保护的void onPostExecute（void结果）{
super.onPostExecute（结果）；
//关闭进度对话框
if（pDialog.isShowing（））
pDialog.disclose（）；
}
}
}
12-30 14:10:28.515: E/AndroidRuntime(12951): FATAL EXCEPTION: AsyncTask #1
12-30 14:10:28.515: E/AndroidRuntime(12951): java.lang.RuntimeException: An error occured while executing doInBackground()
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.os.AsyncTask$3.done(AsyncTask.java:299)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.lang.Thread.run(Thread.java:856)
12-30 14:10:28.515: E/AndroidRuntime(12951): Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:4609)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.view.ViewRootImpl.invalidateChildInParent(ViewRootImpl.java:867)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.view.ViewGroup.invalidateChild(ViewGroup.java:4066)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.view.View.invalidate(View.java:10250)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.view.View.invalidate(View.java:10205)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.widget.AbsListView.resetList(AbsListView.java:1952)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.widget.ListView.resetList(ListView.java:502)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.widget.ListView.setAdapter(ListView.java:442)
12-30 14:10:28.515: E/AndroidRuntime(12951): at com.begital.votrebijoutier.ShopsActivity$GetJson.doInBackground(ShopsActivity.java:141)
12-30 14:10:28.515: E/AndroidRuntime(12951): at com.begital.votrebijoutier.ShopsActivity$GetJson.doInBackground(ShopsActivity.java:1)
12-30 14:10:28.515: E/AndroidRuntime(12951): at android.os.AsyncTask$2.call(AsyncTask.java:287)
12-30 14:10:28.515: E/AndroidRuntime(12951): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
12-30 14:10:28.515: E/AndroidRuntime(12951): ... 5 more
12-30 14:10:28.975: E/WindowManager(12951): Activity com.begital.votrebijoutier.ShopsActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@419962f8 that was originally added here
12-30 14:10:28.975: E/WindowManager(12951): android.view.WindowLeaked: Activity com.begital.votrebijoutier.ShopsActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@419962f8 that was originally added here
12-30 14:10:28.975: E/WindowManager(12951): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:374)
12-30 14:10:28.975: E/WindowManager(12951): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:292)
12-30 14:10:28.975: E/WindowManager(12951): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
12-30 14:10:28.975: E/WindowManager(12951): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
12-30 14:10:28.975: E/WindowManager(12951): at android.view.Window$LocalWindowManager.addView(Window.java:547)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.Dialog.show(Dialog.java:277)
12-30 14:10:28.975: E/WindowManager(12951): at com.begital.votrebijoutier.ShopsActivity$GetJson.onPreExecute(ShopsActivity.java:77)
12-30 14:10:28.975: E/WindowManager(12951): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
12-30 14:10:28.975: E/WindowManager(12951): at android.os.AsyncTask.execute(AsyncTask.java:534)
12-30 14:10:28.975: E/WindowManager(12951): at com.begital.votrebijoutier.ShopsActivity.onCreate(ShopsActivity.java:61)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.Activity.performCreate(Activity.java:5008)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.ActivityThread.access$600(ActivityThread.java:130)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
12-30 14:10:28.975: E/WindowManager(12951): at android.os.Handler.dispatchMessage(Handler.java:99)
12-30 14:10:28.975: E/WindowManager(12951): at android.os.Looper.loop(Looper.java:137)
12-30 14:10:28.975: E/WindowManager(12951): at android.app.ActivityThread.main(ActivityThread.java:4745)
12-30 14:10:28.975: E/WindowManager(12951): at java.lang.reflect.Method.invokeNative(Native Method)
12-30 14:10:28.975: E/WindowManager(12951): at java.lang.reflect.Method.invoke(Method.java:511)
12-30 14:10:28.975: E/WindowManager(12951): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
12-30 14:10:28.975: E/WindowManager(12951): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
12-30 14:10:28.975: E/WindowManager(12951): at dalvik.system.NativeStart.main(Native Method)
12-30 14:10:31.905: I/Process(12951): Sending signal. PID: 12951 SIG: 9
12-30 14:10:28.515:E/AndroidRuntime（12951）：致命异常：AsyncTask#1
12-30 14:10:28.515:E/AndroidRuntime（12951）：java.lang.RuntimeException:执行doInBackground（）时出错
12-30 14:10:28.515:E/AndroidRuntime（12951）：在android.os.AsyncTask$3.done（AsyncTask.java:299）
12-30 14:10:28.515:E/AndroidRuntime（12951）：位于java.util.concurrent.FutureTask$Sync.innerSetException（FutureTask.java:273）
12-30 14:10:28.515:E/AndroidRuntime（12951）：位于java.util.concurrent.FutureTask.setException（FutureTask.java:124）
12-30 14:10:28.515:E/AndroidRuntime（12951）：在java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:307）
12-30 14:10:28.515:E/AndroidRuntime（12951）：在java.util.concurrent.FutureTask.run（FutureTask.java:137）
12-30 14:10:28.515:E/AndroidRuntime（12951）：在android.os.AsyncTask$SerialExecutor$1.run（AsyncTask.java:230）
12-30 14:10:28.515:E/AndroidRuntime（12951）：位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1076）
12-30 14:10:28.515:E/AndroidRuntime（12951）：位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor）。
runOnUiThread(new Runnable() {
@Override
public void run() {
list.setAdapter(adapter);
}
});
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
list = (ListView) findViewById(R.id.list);
ListAdapter adapter = new SimpleAdapter(ShopsActivity.this, oslist,
R.layout.listview_item_row, new String[] { TAG_NAME,
TAG_ADDRESS_STRING }, new int[] { R.id.name_shop,
R.id.address_shop });
list.setAdapter(adapter);
}
> HashMap<String, String> map = new HashMap<String, String>();
> map.put(TAG_NAME, name);
> map.put(TAG_ADDRESS_STRING, address_string);
> oslist.add(map);
> list=(ListView)findViewById(R.id.list);
> ListAdapter adapter = new SimpleAdapter(ShopsActivity.this, oslist,
> R.layout.listview_item_row,
> new String[] { TAG_NAME, TAG_ADDRESS_STRING }, new int[] {
> R.id.name_shop, R.id.address_shop});
> list.setAdapter(adapter);
ListAdapter adapter = new SimpleAdapter(ShopsActivity.this, oslist,
R.layout.listview_item_row, new String[] {TAG_NAME,TAG_ADDRESS_STRING},
new int[] {
R.id.name_shop, R.id.address_shop
});
list.setAdapter(adapter);