I'm new to Android development. I'm just trying to get some data from the Internet and display it . When I run the program, no blank page is displayed, no error appears.
Thanks
HttpExample.java
package com.example. Bucky1; Import android App Importroid.os.Bundle; Import android.widget.TextView; Public class increases the HttpExample activity {TextView httpStuff; @ Override Protected Zero (InstanceStat saved from bundle) {// Todo auto-generated method stub super. Connet (Saved Instantstate); SetContentView (R.layout.httpexample); HttpStuff = (TextView) findViewById (R.id.tvhttp); GetMethodEx getdata = new GetMethodEx (); Returned string; Try {return = getdata.getInternetData (); HttpStuff.setText (returned); } Hold (exception e) {e.printStackTrace (); }}} GetMethod.java
package com.example.bucky1; Import java.io.buffferedReader; Import java.io.InputStreamReader; Import java.net.URI; Import org.apache.http.HttpResponse; Import org.apache.http.client.HttpClient; Import org.apache.http.client.methods.HttpGet; Import org.apache.http.impl.client.DefaultHttpClient; Public class GetMethodEx {public string getInternetData () throws an exception {in BufferedReader = zero; String data = null; Try {HTTP Client Client = New DefaultHttpClient (); URI website = new URI ("http://www.mybringback.com"); HttpGet Request = New HttpGet (); Request.setURI (website); HTTPRPRESS response = Client Execute (request); In = new buffer reader (new interstitial reader (feedback gatitity). GetContent ())); String l = ""; String nl = System.getProperty ("line.seprator"); Stringbuffer sb = new stringbuffer (""); While ((l = in.readline ()) = null (sb.append (l + nl); } In.close (); Data = sb.toString (); Return data; } Finally {if (in! = Null) {try {in.close ()} Return data; } Hold (exception e) {e.printStackTrace (); }}}}} httpexample.xml
& lt ;? Xml version = "1.0" encoding = "UTF-8"? & Gt; & Lt; LinearLayout xmlns: Android = "http://schemas.android.com/apk/res/android" Android: layout_width = "match_parent" Android: layout_height = "match_parent" Android: orientation = "vertical" & gt; & Lt; ScrollView Android: layout_width = "fill_parent" Android: layout_height = "fill_parent" & gt; & Lt; TextView Android: id = "@ + id / tvhttp" Android: layout_width = "wrap_content" Android: layout_height = "wrap_content" Android: text = "TextView" /> & Lt; / Scrollview & gt; & Lt; / LinearLayout & gt;
You need to talk a lot to work things out
- Make sure you have Internet permission set.
- You can only connect to the Internet on a different thread which is not a UI thread
- You can edit UI only on the UI thread, so use the onPostExecute method on your asyncTask
- To get an easy way, use the content of your response EntityUtils.toString (response.getEntity)
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