Android http Verbindung mit OkHttp funktioniert nicht
Ich versuche, OkHttp zu verwenden, aber es stürzt immer wieder ab. Kann jemand einen kurzen Blick darauf werfen und sehen, ob Sie wissen, was passiert. Vielen Dank
Log cat:
01-24 08:34:46.952: E/AndroidRuntime(31953): FATAL EXCEPTION: OkHttp Dispatcher
01-24 08:34:46.952: E/AndroidRuntime(31953): java.lang.NoClassDefFoundError: okio.Okio
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.internal.http.HttpConnection.<init>(HttpConnection.java:87)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Connection.upgradeToTls(Connection.java:272)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Connection.connect(Connection.java:158)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Connection.connectAndSetOwner(Connection.java:174)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:120)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.internal.http.RouteSelector.next(RouteSelector.java:131)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:312)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:235)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Call.getResponse(Call.java:262)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:219)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:192)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Call.access$100(Call.java:34)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.Call$AsyncCall.execute(Call.java:156)
01-24 08:34:46.952: E/AndroidRuntime(31953): at com.squareup.okhttp.internal.NamedRunnable.run(NamedRunnable.java:33)
01-24 08:34:46.952: E/AndroidRuntime(31953): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
01-24 08:34:46.952: E/AndroidRuntime(31953): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
01-24 08:34:46.952: E/AndroidRuntime(31953): at java.lang.Thread.run(Thread.java:841)
Hier ist das Codebeispiel, das ich verwenden möchte. Es stammt aus einem Online-Tutorial (teamtreehouse.com) Java-Code:
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(forecastUrl)
.build();
Call call = client.newCall(request);
call.enqueue(new Callback() {
@Override
public void onFailure(Request request, IOException e) {
runOnUiThread(new Runnable() {
@Override
public void run() {
toggleRefresh();
}
});
alertUserAboutError();
}
@Override
public void onResponse(Response response) throws IOException {
runOnUiThread(new Runnable() {
@Override
public void run() {
toggleRefresh();
}
});
try {
String jsonData = response.body().string();
Log.v(TAG, jsonData);
if (response.isSuccessful()) {
mCurrentWeather = getCurrentDetails(jsonData);
runOnUiThread(new Runnable() {
@Override
public void run() {
updateDisplay();
}
});
} else {
alertUserAboutError();
}
}
catch (IOException e) {
Log.e(TAG, "Exception caught: ", e);
}
catch (JSONException e) {
Log.e(TAG, "Exception caught: ", e);
}
}
});