im trying to save a remote web file (.html) inside my sdcard, so i can read it later or manipulate it, but the application crash in the start
public class MainActivity extends ActionBarActivity {
private WebView mWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_PROGRESS);
WebView webview = new WebView(this);
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
setContentView(webview);
webview.setWebViewClient(new WebViewClient());
webview.loadUrl("file:///android_asset/paginas/index.html");
//This LoadURL it load properly if i comment the img.DownloadFromURL, something is wrong there =/, if downloadfromurl is not commented, it crash!
String url = "http://empregocerto.uol.com.br/info/vagas_por_area.html";
ImageManager img = new ImageManager();
img.DownloadFromUrl(url, "index.txt");
//its ImageManager coz in the example the guy was downloading image, but i want all the html code in a file at my cellphone
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public class ImageManager {
private final String PATH = "/data/data/com.helloandroid.downloader/"; //put the downloaded file here
public void DownloadFromUrl(String imageURL, String fileName) { //this is the downloader method
try {
URL url = new URL(imageURL); //you can write here any link
File file = new File(fileName);
long startTime = System.currentTimeMillis();
Log.d("ImageManager", "download begining");
Log.d("ImageManager", "download url:" + url);
Log.d("ImageManager", "downloaded file name:" + fileName);
/* Open a connection to that URL. */
URLConnection ucon = url.openConnection();
/*
* Define InputStreams to read from the URLConnection.
*/
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
/*
* Read bytes to the Buffer until there is nothing more to read(-1).
*/
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
/* Convert the Bytes read to a String. */
FileOutputStream fos = new FileOutputStream(file);
fos.write(baf.toByteArray());
fos.close();
Log.d("ImageManager", "download ready in"
+ ((System.currentTimeMillis() - startTime) / 1000)
+ " sec");
} catch (IOException e) {
Log.d("ImageManager", "Error: " + e);
}
}
}
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
}
LOG CAT ERROR:
04-02 14:33:24.660: V/WebViewChromium(1370): Binding Chromium to the main looper Looper (main, tid 1) {b3d8e1c8} 04-02 14:33:24.680: I/chromium(1370): [INFO:library_loader_hooks.cc(112)] Chromium logging enabled: level = 0, default verbosity = 0 04-02 14:33:24.700: I/BrowserProcessMain(1370): Initializing chromium process, renderers=0 04-02 14:33:24.790: D/(1370): HostConnection::get() New Host Connection established 0xb7df38f8, tid 1370 04-02 14:33:24.800: W/chromium(1370): [WARNING:proxy_service.cc(888)] PAC support disabled because there is no system implementation 04-02 14:33:24.980: D/dalvikvm(1370): GC_FOR_ALLOC freed 86K, 6% free 2889K/3060K, paused 42ms, total 43ms 04-02 14:33:24.980: I/dalvikvm-heap(1370): Grow heap (frag case) to 3.508MB for 635812-byte allocation 04-02 14:33:25.040: D/dalvikvm(1370): GC_FOR_ALLOC freed <1K, 5% free 3510K/3684K, paused 50ms, total 50ms 04-02 14:33:25.350: D/dalvikvm(1370): GC_FOR_ALLOC freed 13K, 3% free 3953K/4060K, paused 21ms, total 22ms 04-02 14:33:25.560: D/ImageManager(1370): download begining 04-02 14:33:25.560: D/ImageManager(1370): download url:http://empregocerto.uol.com.br/info/vagas_por_area.html 04-02 14:33:25.560: D/ImageManager(1370): downloaded file name:index.txt
//there is no file index.txt saved
04-02 14:33:25.750: D/dalvikvm(1370): GC_FOR_ALLOC freed 81K, 4% free 4382K/4548K, paused 23ms, total 24ms 04-02 14:33:25.810: D/AndroidRuntime(1370): Shutting down VM 04-02 14:33:25.810: W/dalvikvm(1370): threadid=1: thread exiting with uncaught exception (group=0xb3accba8) 04-02 14:33:25.830: E/AndroidRuntime(1370): FATAL EXCEPTION: main 04-02 14:33:25.830: E/AndroidRuntime(1370): Process: com.example.helloworld, PID: 1370 04-02 14:33:25.830: E/AndroidRuntime(1370): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.helloworld/com.example.helloworld.MainActivity}: android.os.NetworkOnMainThreadException 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.ActivityThread.access$800(ActivityThread.java:135) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.os.Handler.dispatchMessage(Handler.java:102) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.os.Looper.loop(Looper.java:136) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.ActivityThread.main(ActivityThread.java:5017) 04-02 14:33:25.830: E/AndroidRuntime(1370): at java.lang.reflect.Method.invokeNative(Native Method) 04-02 14:33:25.830: E/AndroidRuntime(1370): at java.lang.reflect.Method.invoke(Method.java:515) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 04-02 14:33:25.830: E/AndroidRuntime(1370): at dalvik.system.NativeStart.main(Native Method) 04-02 14:33:25.830: E/AndroidRuntime(1370): Caused by: android.os.NetworkOnMainThreadException 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1145) 04-02 14:33:25.830: E/AndroidRuntime(1370): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 04-02 14:33:25.830: E/AndroidRuntime(1370): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 04-02 14:33:25.830: E/AndroidRuntime(1370): at java.net.InetAddress.getAllByName(InetAddress.java:214) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.Dns$1.getAllByName(Dns.java:28) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:216) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.RouteSelector.next(RouteSelector.java:122) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:292) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.HttpEngine.sendSocketRequest(HttpEngine.java:255) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:206) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:345) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:296) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.android.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:179) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.example.helloworld.MainActivity$ImageManager.DownloadFromUrl(MainActivity.java:87) 04-02 14:33:25.830: E/AndroidRuntime(1370): at com.example.helloworld.MainActivity.onCreate(MainActivity.java:54) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.Activity.performCreate(Activity.java:5231) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 04-02 14:33:25.830: E/AndroidRuntime(1370): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 04-02 14:33:25.830: E/AndroidRuntime(1370): ... 11 more 04-02 14:33:30.280: I/Process(1370): Sending signal. PID: 1370 SIG: 9
