在Android中搜索將無法正常工作;應用程序崩潰

我試圖在我的應用程序上實現一個搜索選項，從聯機數據庫獲取數據。我在我的libs文件夾中有okhhtp3.jar和okio.jar。每當我將文本輸入到搜索字段時，應用程序就會崩潰並關閉。這是我的代碼搜索：
`在Android中搜索將無法正常工作;應用程序崩潰

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.webkit.URLUtil; 
import android.widget.SearchView; 


import java.io.IOException; 

import okhttp3.MediaType; 
import okhttp3.OkHttpClient; 
import okhttp3.Request; 
import okhttp3.RequestBody; 
import okhttp3.Response; 


`public class Search extends Fragment { 

    private SearchView searchField; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 
     View rootView = inflater.inflate(R.layout.search, container, false); 
     this.searchField = (SearchView) rootView.findViewById(R.id.searchView); 


     // perform set on query text listener event 
     this.searchField.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 
      @Override 
      public boolean onQueryTextSubmit(String query) { 
       String url = "https://api.themoviedb.org/3/search/movie?api_key&language=en-US&query="+query+"&page=1&include_adult=false"; 
       //URLUtil.isValidUrl(query); 
       if (URLUtil.isValidUrl(url) == true) { 

        OkHttpClient client = new OkHttpClient(); 

        MediaType mediaType = MediaType.parse("application/octet-stream"); 
        RequestBody body = RequestBody.create(mediaType, "{}"); 
        Request request = new Request.Builder().url(url).get().build(); 

        try { 
         Response response = client.newCall(request).execute(); 
         //System.out.println(response.message()); 
        } catch (IOException e) { 
         e.printStackTrace(); 
        } 

       } 

       System.out.println(query); 
       return false; 
      } 

      @Override 
      public boolean onQueryTextChange(String newText) { 
       // do something when text changes 
       return false; 
      } 
     }); 

     this.searchField.getQuery(); 
     return rootView; 
    } 




}

例外我越來越：

04-15 08:33:18 E/InputEventSender: Exception dispatching finished signal. 
04-15 08:33:18 E/MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback 
04-15 08:33:18 E/MessageQueue-JNI: android.os.NetworkOnMainThreadException 
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1303) 
at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:86) 
at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:74) 
at java.net.InetAddress.getAllByName(InetAddress.java:752) 
at okhttp3.Dns$1.lookup(Dns.java:39) 
at okhttp3.internal.connection.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:170) 
at okhttp3.internal.connection.RouteSelector.nextProxy(RouteSelector.java:136) 
at okhttp3.internal.connection.RouteSelector.next(RouteSelector.java:81) 
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:171) 
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:121) 
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:100) 
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)                     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92) 
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67) 
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) 
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92) 
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67) 
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)                     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92) 
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:120)                     at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92) 
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67) 
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:179) 
at okhttp3.RealCall.execute(RealCall.java:63)                     at Search$1.onQueryTextSubmit(Search.java:46)                     at android.widget.SearchView.onSubmitQuery(SearchView.java:1285)                     at android.widget.SearchView.-wrap8(SearchView.java)                     at android.widget.SearchView$6.onEditorAction(SearchView.java:1262)                     at android.widget.TextView.doKeyDown(TextView.java:6193)                     at android.widget.TextView.onKeyDown(TextView.java:6075)                     at android.widget.AutoCompleteTextView.onKeyDown(AutoCompleteTextView.java:829)                     at android.view.KeyEvent.dispatch(KeyEvent.java:2688)                     at android.view.View.dispatchKeyEvent(View.java:9960)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.support.v4.view.ViewPager.dispatchKeyEvent(ViewPager.java:2761)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1630)                     at com.android.internal.policy.DecorView.superDispatchKeyEvent(DecorView.java:405)                     at com.android.internal.policy.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1798)                     at android.app.Activity.dispatchKeyEvent(Activity.java:3021)                     at android.support.v7.app.AppCompatActivity.dispatchKeyEvent(AppCompatActivity.java:547)                     at android.support.v7.view.WindowCallbackWrapper.dispatchKeyEvent(WindowCallbackWrapper.java:59)                     at android.support.v7.app.AppCompatDelegateImplBase$AppCompatWindowCallbackBase.dispatchKeyEvent(AppCompatDelegateImplBase.java:319)                     at android.support.v7.view.WindowCallbackWrapper.dispatchKeyEvent(WindowCallbackWrapper.java:59) 
at com.a 
04-15 08:33:18 D/AndroidRuntime: Shutting down VM 
04-15 08:33:18 E/AndroidRuntime: FATAL EXCEPTION: main 
Process: PID: 4675 
android.os.NetworkOnMainThreadException 
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1303) 
at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:86) 
at java.net.Inet6AddressImpl.lookupAllHostAddr(Inet6AddressImpl.java:74)                     at java.net.InetAddress.getAllByName(InetAddress.java:752)                     at okhttp3.Dns$1.lookup(Dns.java:39)

我會很感激任何幫助！

來源

2017-04-15 Alex B.

將stacktrace添加到您的問題。你可以在Logcat中找到堆棧跟蹤。請參閱[this]（http://stackoverflow.com/questions/23353173/uncomfort-myapp-has-stopped-how-can-i-solve-this）以供參考 – Zoe

替換此

Response response = client.newCall(request).execute();

With an async call。

client.newCall(request).enqueue(new Callback() { 
    // TODO: Learn to implement this correctly 
});

我有okhhtp3.jar和okio.jar在我的libs文件夾

嘗試使用搖籃，而不是jar文件。

compile 'com.squareup.okhttp3:okhttp:(insert latest version)'

來源

2017-04-15 08:47:26

嘗試使用異步調用來實現您的答案，我不是現在我得到'java.lang.SecurityException：權限被拒絕（缺少INTERNET權限？）'我有''使用權限android：name =「android.permission.INTERNET 「/> '在我的清單文件中。 –

好吧，谷歌搜索這些消息應該是第一件事 –

這看起來（根據堆棧跟蹤）就像試圖調用主線程上的網絡電話：

android.os.NetworkOnMainThreadException

這意味着你必須運行你有任何的網絡假象異步線程：

//Change String, Void, String with whatever you want it to take as input and return 
private class DownloadTask extends AsyncTask<String, Void, String> { 


    @Override 
    protected void onPreExecute() {} 

    @Override 
    protected String doInBackground(String... urls) { 
     //What you do here: Add your network tasks. 
     return result; 
    } 


    @Override 
    protected void onPostExecute(String result) { 
    } 

}

來源

2017-04-15 08:54:57 Zoe

OkHttp不需要一個AsyncTask –

它不會但它必須是某種或另一種方式的異步。你建議一種方法，我建議一個不同的方法。 – Zoe

在Android中搜索將無法正常工作;應用程序崩潰

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