无法添加Android的窗口对话框 [英] Unable to add window Android dialog box
本文介绍了无法添加Android的窗口对话框的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
首先,用户输入自己的用户名和密码,然后应用程序从API获取数据的列表。
我试图显示一个对话框,而应用程序是从API同步数据,但我发现了以下错误:
日志:
错误07-03 14:12:29.791 24439-24439 / com.rep E / AndroidRuntime:致命异常:主要
android.view.WindowManager $ BadTokenException:无法添加窗口 - 令牌null不是一个应用程序
在android.view.ViewRootImpl.setView(ViewRootImpl.java:571)
在android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:246)
在android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
在android.app.Dialog.show(Dialog.java:281)
在com.app.login.LoginActivity $ SincronizarTask。(LoginActivity.java:292)
在com.app.login.LoginActivity $ AutenticacaoLocalTask.onPostExecute(LoginActivity.java:248)
在com.app.login.LoginActivity $ AutenticacaoLocalTask.onPostExecute(LoginActivity.java:163)
在android.os.AsyncTask.finish(AsyncTask.java:631)
在android.os.AsyncTask.access $ 600(AsyncTask.java:177)
在android.os.AsyncTask $ InternalHandler.handleMessage(AsyncTask.java:644)
在android.os.Handler.dispatchMessage(Handler.java:99)
在android.os.Looper.loop(Looper.java:137)
在android.app.ActivityThread.main(ActivityThread.java:5226)
在java.lang.reflect.Method.invokeNative(本机方法)
在java.lang.reflect.Method.invoke(Method.java:511)
在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:795)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
在dalvik.system.NativeStart.main(本机方法)
的同步类:
公共类SincronizarTask扩展的AsyncTask {私人最终ProgressDialog对话框;
私人上下文CTX;
私人ProgressDialog mProgressDialog;
私人Sincronizar mSincronizar =新Sincronizar(this.ctx);公共SincronizarTask(上下文活动){CTX =活动;
mSincronizar =新Sincronizar(CTX);对话框=新ProgressDialog(CTX);
dialog.setCancelable(假);
dialog.setTitle(Sincronizando);
dialog.setMessage(Aguarde ......);如果(!dialog.isShowing()){
dialog.show();
}}@覆盖
在preExecute保护无效(){
super.on preExecute();
Log.i(关于preExecute,RM);
}@覆盖
保护布尔doInBackground(虚空...... PARAMS){Log.i(RM,doInBackground);尝试{
ClientesRest mClientesRest =新ClientesRest(this.ctx);Log.i(RM,doInBackground:P1);mClientesRest.getClientes(新ClientesRest.ClientesRestListener(){
公共无效clientesReceived(名单clientes){
Log.i(RM,doInBackground:P:2);
Log.i(RM,将String.valueOf(clientes));
Log.i(RM,doInBackground:P:3);
}
});
}赶上(例外五){
e.printStackTrace();
}返回true;}@覆盖
保护无效onPostExecute(最终布尔成功){
dialog.dismiss();
}@覆盖
保护无效onCancelled(){
mAutenticacaoLocalTask = NULL;
dialog.dismiss();
}}
该ClientRest类:
进口android.content.Context;
进口android.util.Log;进口com.model.ClienteModel;
进口com.webservice.Servidor;
进口com.webservice.volley.AuthFailureError;
进口com.webservice.volley.Request;
进口com.webservice.volley.RequestQueue;
进口com.webservice.volley.Response;
进口com.webservice.volley.VolleyError;
进口com.webservice.volley.toolbox.JsonObjectRequest;
进口com.webservice.volley.toolbox.Volley;进口org.json.JSONArray;
进口org.json.JSONException;
进口org.json.JSONObject;进口的java.util.ArrayList;
进口的java.util.HashMap;
进口的java.util.List;
进口的java.util.Map;进口静态java.lang.String.valueOf;公共类ClientesRest扩展Servidor { 私人字符串recursoRest =clientes; 私人请求队列mRequestQueue; 私人上下文的背景下; 公共ClientesRest(上下文CTX){
this.context = CTX;
} 公共接口ClientesRestListener {
公共无效clientesReceived(列表< ClienteModel> clientes);
} 公众最终无效getClientes(最终ClientesRestListener监听){ 字符串URL = this.URL_WS + recursoRest;
mRequestQueue = Volley.newRequestQueue(this.context); JsonObjectRequest mJsonObjectRequest =新JsonObjectRequest(Request.Method.GET,网址,空,新Response.Listener<&JSONObject的GT;(){ @覆盖
公共无效onResponse(JSONObject的响应){
清单< ClienteModel> clientes = NULL;
尝试{
clientes = parseJSON(响应);
}赶上(JSONException E){
e.printStackTrace();
// Log.i(RM,将String.valueOf(e.getStackTrace()));
}
listener.clientesReceived(clientes);
} },新Response.ErrorListener(){ @覆盖
公共无效onErrorResponse(VolleyError错误){
Log.i(RM,error.getMessage());
} }
){
@覆盖
公共地图<字符串,字符串> getHeaders()抛出AuthFailureError {
HashMap的<字符串,字符串>标题=新的HashMap<字符串,字符串>();
headers.put(X - 令牌,xxxxxxxxxxxxxxxxxxxxxxxx);
返回头;
}
}; mRequestQueue.add(mJsonObjectRequest);
} 私人列表< ClienteModel> parseJSON(JSONObject的JSON)抛出JSONException { Log.i(RM,executouÒparseJSON); / *数组第armazenar OS clientes * /
ArrayList的< ClienteModel> arrayClientes =新的ArrayList< ClienteModel>(); / * PEGAØ阵dados阙VEM呐resposta达CONSULTA AO休息* /
JSONArray dados = json.getJSONArray(dados); / * percorreØ数组* /
的for(int i = 0; I< dados.length();我++){ / * PEGA一个posição德CADA linha没有数组* /
JSONObject的项目= dados.getJSONObject(I) / * CRIA UM objeto做TIPO ClienteModel * /
ClienteModel mClienteModel =新ClienteModel(); / * cadastra OS dadosnecessários没有objeto mClienteModel * /
mClienteModel.set_idrm(的Integer.parseInt(item.optString(ID)));
mClienteModel.set_nome(item.optString(诺姆));
mClienteModel.set_tipo(item.getString(TIPO));
mClienteModel.set_endereco(item.optString(endereco));
mClienteModel.set_numero(item.optString(NUMERO));
mClienteModel.set_complemento(item.optString(补语));
mClienteModel.set_cep(item.optString(CEP));
mClienteModel.set_bairro(item.optString(上城区));
mClienteModel.set_cidade(item.optString(CIDADE));
mClienteModel.set_estado(item.optString(国家体制));
mClienteModel.set_informacao_adicional(informacao_adicional); / * adicionarØobjeto mClienteModel没有数组德ClientesarrayClientes* /
arrayClientes.add(mClienteModel);
} 返回arrayClientes; }
}
解决方案
私人Sincronizar mSincronizar =新Sincronizar(this.ctx);
它替换为
私人Sincronizar mSincronizar;
First the user enter his username and password, then the app gets a list of data from an API.
I'm trying to show a dialog box while the the app is synchronizing the data from an API, but I'm getting the following error:
Log:
ERROR
07-03 14:12:29.791 24439-24439/com.rep E/AndroidRuntime﹕ FATAL EXCEPTION: main
android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
at android.view.ViewRootImpl.setView(ViewRootImpl.java:571)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:246)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.app.Dialog.show(Dialog.java:281)
at com.app.login.LoginActivity$SincronizarTask.(LoginActivity.java:292)
at com.app.login.LoginActivity$AutenticacaoLocalTask.onPostExecute(LoginActivity.java:248)
at com.app.login.LoginActivity$AutenticacaoLocalTask.onPostExecute(LoginActivity.java:163)
at android.os.AsyncTask.finish(AsyncTask.java:631)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5226)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
at dalvik.system.NativeStart.main(Native Method)
The Sync class:
public class SincronizarTask extends AsyncTask {
private final ProgressDialog dialog;
private Context ctx;
private ProgressDialog mProgressDialog;
private Sincronizar mSincronizar = new Sincronizar(this.ctx);
public SincronizarTask(Context activity) {
ctx = activity;
mSincronizar = new Sincronizar(ctx);
dialog = new ProgressDialog(ctx);
dialog.setCancelable(false);
dialog.setTitle("Sincronizando");
dialog.setMessage("Aguarde...");
if (!dialog.isShowing()) {
dialog.show();
}
}
@Override
protected void onPreExecute() {
super.onPreExecute();
Log.i("RM", "onPreExecute");
}
@Override
protected Boolean doInBackground(Void... params) {
Log.i("RM", "doInBackground");
try {
ClientesRest mClientesRest = new ClientesRest(this.ctx);
Log.i("RM", "doInBackground : P1");
mClientesRest.getClientes(new ClientesRest.ClientesRestListener() {
public void clientesReceived(List clientes) {
Log.i("RM", "doInBackground : P:2");
Log.i("RM", String.valueOf(clientes));
Log.i("RM", "doInBackground : P:3");
}
});
} catch (Exception e) {
e.printStackTrace();
}
return true;
}
@Override
protected void onPostExecute(final Boolean success) {
dialog.dismiss();
}
@Override
protected void onCancelled() {
mAutenticacaoLocalTask = null;
dialog.dismiss();
}
}
The ClientRest class:
import android.content.Context;
import android.util.Log;
import com.model.ClienteModel;
import com.webservice.Servidor;
import com.webservice.volley.AuthFailureError;
import com.webservice.volley.Request;
import com.webservice.volley.RequestQueue;
import com.webservice.volley.Response;
import com.webservice.volley.VolleyError;
import com.webservice.volley.toolbox.JsonObjectRequest;
import com.webservice.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static java.lang.String.valueOf;
public class ClientesRest extends Servidor {
private String recursoRest = "clientes";
private RequestQueue mRequestQueue;
private Context context;
public ClientesRest(Context ctx) {
this.context = ctx;
}
public interface ClientesRestListener {
public void clientesReceived(List<ClienteModel> clientes);
}
public final void getClientes(final ClientesRestListener listener) {
String url = this.URL_WS + recursoRest;
mRequestQueue = Volley.newRequestQueue(this.context);
JsonObjectRequest mJsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
List<ClienteModel> clientes = null;
try {
clientes = parseJSON(response);
} catch (JSONException e) {
e.printStackTrace();
// Log.i("RM", String.valueOf(e.getStackTrace()));
}
listener.clientesReceived(clientes);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.i("RM", error.getMessage());
}
}
) {
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("X--TOKEN", "xxxxxxxxxxxxxxxxxxxxxxxx");
return headers;
}
};
mRequestQueue.add(mJsonObjectRequest);
}
private List<ClienteModel> parseJSON(JSONObject json) throws JSONException {
Log.i("RM", "executou o parseJSON");
/* array para armazenar os clientes */
ArrayList<ClienteModel> arrayClientes = new ArrayList<ClienteModel>();
/* pega o array "dados" que vem na resposta da consulta ao rest */
JSONArray dados = json.getJSONArray("dados");
/* percorre o array */
for (int i = 0; i < dados.length(); i++) {
/* pega a posição de cada linha no array */
JSONObject item = dados.getJSONObject(i);
/* cria um objeto do tipo ClienteModel */
ClienteModel mClienteModel = new ClienteModel();
/* cadastra os dados necessários no objeto mClienteModel */
mClienteModel.set_idrm(Integer.parseInt(item.optString("id")));
mClienteModel.set_nome(item.optString("nome"));
mClienteModel.set_tipo(item.getString("tipo"));
mClienteModel.set_endereco(item.optString("endereco"));
mClienteModel.set_numero(item.optString("numero"));
mClienteModel.set_complemento(item.optString("complemento"));
mClienteModel.set_cep(item.optString("cep"));
mClienteModel.set_bairro(item.optString("bairro"));
mClienteModel.set_cidade(item.optString("cidade"));
mClienteModel.set_estado(item.optString("estado"));
mClienteModel.set_informacao_adicional("informacao_adicional");
/* adicionar o objeto mClienteModel no array de Clientes "arrayClientes" */
arrayClientes.add(mClienteModel);
}
return arrayClientes;
}
}
解决方案
private Sincronizar mSincronizar = new Sincronizar(this.ctx);
replace it with
private Sincronizar mSincronizar;
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