Im beginner of android. try to call API with Request body(application/json) and Request headers.here is what i have tried
private String doEmotionAPICall(String imgURL){
//creating map object to creat Json object from it
try {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("https://api.projectoxford.ai/emotion/v1.0/recognize");
JSONObject data = new JSONObject();
try {
data.put("url", imgURL);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
StringEntity se = new StringEntity(data.toString());
se.setContentEncoding("UTF-8");
se.setContentType("application/json");
post.setEntity(se);
post.setHeader("Ocp-Apim-Subscription-Key", "my key");
HttpResponse response = client.execute(post);
String result = EntityUtils.toString(response.getEntity());
Toast.makeText(getApplicationContext(),result,Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
return "result if success";
}
}
it gives error like
01-15 13:13:36.188 3849-3849/net.simplifiedcoding.imageuploadsample E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: net.simplifiedcoding.imageuploadsample, PID: 3849
android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145)
at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
at java.net.InetAddress.getAllByName(InetAddress.java:214)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:374)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:575)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:498)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:476)
at net.simplifiedcoding.imageuploadsample.MainActivity.doEmotionAPICall(MainActivity.java:184)
at net.simplifiedcoding.imageuploadsample.MainActivity.onClick(MainActivity.java:149)
at android.view.View.performClick(View.java:4456)
at android.view.View$PerformClick.run(View.java:18465)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5086)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
UPDATE
tried with AsyncTask toast message message not showing only on pre toast message shows others are not and no errors also. is there any other way to debug it or im doing wrong?
here is code
private void doEmotionAPICall() {
class CallAPI extends AsyncTask<String, Integer, String> {
protected void onPreExecute() {
Toast.makeText(getApplicationContext(), "on pre", Toast.LENGTH_LONG).show();
}
protected void onPostExecute() {
Toast.makeText(getApplicationContext(), "on post", Toast.LENGTH_LONG).show();
}
@Override
protected String doInBackground(String... params) {
try {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("https://api.projectoxford.ai/emotion/v1.0/recognize");
JSONObject data = new JSONObject();
String imgURL = "http://amysdayspa.com/wp-content/uploads/2015/02/smile.jpg";
try {
data.put("url", imgURL);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText(getApplicationContext(), "json" + data, Toast.LENGTH_LONG).show();
StringEntity se = new StringEntity(data.toString());
se.setContentEncoding("UTF-8");
se.setContentType("application/json");
post.setEntity(se);
post.setHeader("Ocp-Apim-Subscription-Key", "my key");
HttpResponse response = client.execute(post);
Toast.makeText(getApplicationContext(), "response", Toast.LENGTH_LONG).show();
String result = EntityUtils.toString(response.getEntity());
Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
return "selva";
}
}
String imgURL = "http://amysdayspa.com/wp-content/uploads/2015/02/smile.jpg";
new CallAPI().execute(imgURL);
//creating map object to creat Json object from it
}
You are doing some long running operation on Main Thread. Please use AsyncTask. Here is a good tutorial for this.