I use OkHttpClient to fetch data from server and show it in runOnUiThread event, but the event does not always work
Basic logic is that I tap on a button, and OkHttpClient gets a json from the server, parse it and shows me the json data. Don't know why, sometimes it works fine but in more cases I need to tap for several times for this to work. I test and find out that the json data is always successfully fetched so the problems seems to be that the runOnUiThread event is not triggered in a proper way? Sorry I'm new to android
private void getDocDetail() {
OkHttpClient client = new OkHttpClient.Builder().build();
RequestBody post = new FormBody.Builder()
.add("DocTypeID", Integer.toString(DocTypeID))
.add("DocID", Integer.toString(DocID))
.build();
final Request req = new Request.Builder()
.url("http://127.0.0.1/GetDocData.php"))
.post(post)
.build();
client.newCall(req).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
e.printStackTrace();
}
@Override
public void onResponse(Call call, final Response response) throws IOException {
runOnUiThread(new Runnable() {
@Override
public void run() {
try {
final String s = response.body().string();
JSONObject jo = new JSONObject(s);
AttachCount = jo.optInt("Attach");
edtAttach.setText(String.valueOf(AttachCount));
} catch (JSONException e) { e.printStackTrace(); }
catch (IOException e) { e.printStackTrace(); }
catch (Exception e) { e.printStackTrace(); }
});
}
});
}
no error message at all. What I need is that each time I tap the button I can see the AttachCount correctly, instead of tapping for 10 times and only 1 time works
when it works fine, the log is very simple like this:
2019-07-16 10:56:16.553 13332-13332/com.example.lance.platform I/Timeline:
Timeline: Activity_launch_request time:5633500 intent:Intent { cmp=com.example.lance.platform/.DocsignActivity (has extras) }
2019-07-16 10:56:16.624 13332-13379/com.example.lance.platform I/ContentCatcher: ViewContentFetcher : ViewContentFetcher
2019-07-16 10:56:17.093 13332-13337/com.example.lance.platform I/zygote64: Do full code cache collection, code=481KB, data=346KB
2019-07-16 10:56:17.095 13332-13337/com.example.lance.platform I/zygote64: After code cache collection, code=470KB, data=294KB
But if I tap and nothing happens, the log becomes as below:
2019-07-16 10:48:14.443 12870-12870/com.example.lance.platform I/Timeline: Timeline: Activity_launch_request time:5151391 intent:Intent { cmp=com.example.lance.platform/.DocsignActivity (has extras) }
2019-07-16 10:48:14.554 12870-12896/com.example.lance.platform D/ViewContentFactory: initViewContentFetcherClass
2019-07-16 10:48:14.554 12870-12896/com.example.lance.platform I/ContentCatcher: ViewContentFetcher : ViewContentFetcher
2019-07-16 10:48:14.554 12870-12896/com.example.lance.platform D/ViewContentFactory: createInterceptor took 1ms
2019-07-16 10:48:14.810 12870-12875/com.example.lance.platform I/zygote64: Compiler allocated 7MB to compile void android.widget.TextView.(android.content.Context, android.util.AttributeSet, int, int)
2019-07-16 10:48:14.845 12870-12870/com.example.lance.platform W/Looper: Slow Frame: doFrame is 318ms late
2019-07-16 10:48:15.065 12870-12870/com.example.lance.platform W/System.err: android.os.NetworkOnMainThreadException
2019-07-16 10:48:15.066 12870-12870/com.example.lance.platform W/System.err: at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1450)
2019-07-16 10:48:15.066 12870-12870/com.example.lance.platform W/System.err: at java.net.SocketInputStream.read(SocketInputStream.java:169)
2019-07-16 10:48:15.066 12870-12870/com.example.lance.platform W/System.err: at java.net.SocketInputStream.read(SocketInputStream.java:139)
2019-07-16 10:48:15.066 12870-12870/com.example.lance.platform W/System.err: at okio.Okio$2.read(Okio.java:139)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okio.AsyncTimeout$2.read(AsyncTimeout.java:237)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okio.RealBufferedSource.read(RealBufferedSource.java:46)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okhttp3.internal.http1.Http1Codec$FixedLengthSource.read(Http1Codec.java:384)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okhttp3.internal.Util.skipAll(Util.java:171)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okhttp3.internal.Util.discard(Util.java:153)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okhttp3.internal.http1.Http1Codec$FixedLengthSource.close(Http1Codec.java:400)
2019-07-16 10:48:15.067 12870-12870/com.example.lance.platform W/System.err: at okio.RealBufferedSource.close(RealBufferedSource.java:455)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at okhttp3.internal.Util.closeQuietly(Util.java:106)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at okhttp3.ResponseBody.string(ResponseBody.java:177)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at com.example.lance.platform.DocsignActivity$1$1.run(DocsignActivity.java:229)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at android.os.Handler.handleCallback(Handler.java:794)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at android.os.Handler.dispatchMessage(Handler.java:99)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at android.os.Looper.loop(Looper.java:176)
2019-07-16 10:48:15.068 12870-12870/com.example.lance.platform W/System.err: at android.app.ActivityThread.main(ActivityThread.java:6651)
2019-07-16 10:48:15.069 12870-12870/com.example.lance.platform W/System.err: at java.lang.reflect.Method.invoke(Native Method)
2019-07-16 10:48:15.069 12870-12870/com.example.lance.platform W/System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
2019-07-16 10:48:15.069 12870-12870/com.example.lance.platform W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:824)
2019-07-16 10:48:15.098 12870-12898/com.example.lance.platform D/OpenGLRenderer: endAllActiveAnimators on 0x6fd8b62000 (ListView) with handle 0x6fd8ac0460
