我对android很新，这是我第一次使用AsyncTask。我无法通过调试找到错误，因为调试器仅在onPreExecute方法中输入而不在doInBackground方法中输入。所以我认为错误是两种方法之一，但我无法理解2.
以下是此课程的代码：
package com.PacchettoPrincipale.app;
import [...]
public class LoadFermate extends AsyncTask<Void, Void, ArrayList<HashMap<String, String>>> {
private Context context;
public LoadFermate(Context context){
this.context = context;
}
private ProgressDialog pDialog;
private JSONArray mComments = null;
private ArrayList<HashMap<String, String>> mCommentList;
//testing on Emulator:
private static final String DOWNLOAD_FERMATE_URL = "http://10.0.2.2/PrimaAppAndroid/fermate.php";
//JSON IDS:
private static final String TAG_COD = "CodFermata";
private static final String TAG_POSTS = "posts";
private static final String TAG_NOME = "Nome";
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(context);
pDialog.setMessage("Download fermate...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected ArrayList<HashMap<String, String>> doInBackground(Void... voids) {
updateJSONData();
return mCommentList;
}
@Override
protected void onPostExecute(ArrayList<HashMap<String, String>> hashMaps) {
super.onPostExecute(hashMaps);
pDialog.dismiss();
for(int x = 0; x < hashMaps.size(); x++){
String testo = hashMaps.get(x).toString();
Toast.makeText(this.context , testo, Toast.LENGTH_SHORT);
}
}
private void updateJSONData() {
mCommentList = new ArrayList<HashMap<String, String>>();
JSONParser jParser = new JSONParser();
JSONObject json = jParser.getJSONFromUrl(DOWNLOAD_FERMATE_URL);
try {
mComments = json.getJSONArray(TAG_POSTS);
for (int i = 0; i < mComments.length(); i++) {
JSONObject c = mComments.getJSONObject(i);
int CodFermata = c.getInt(TAG_COD);
String Nome = c.getString(TAG_NOME);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_COD, String.valueOf(CodFermata));
map.put(TAG_NOME, Nome);
mCommentList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
我从传递上下文的其他类中调用它：new LoadFermate(getApplicationContext()).execute();
这是Register类的一段代码，我称之为AsyncTask。我把它放在onCreate中只是因为我在最终实现之前进行了测试。
public class Register extends Activity implements OnClickListener{
private EditText user, pass, codDoc;
private Button mRegister;
[...]
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
[...]
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//new CreateUser().execute();
new LoadFermate(Register.this).execute(); // HERE
}
class CreateUser extends AsyncTask<String, String, String> { [...]}
}
和logCat：
01-04 05:37:48.883 396-616/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:48.883 396-616/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:48.883 396-616/system_process I/PackageManager﹕ Scheme: "mms"
01-04 05:37:48.883 396-616/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:48.933 396-616/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:48.933 396-616/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:48.933 396-616/system_process I/PackageManager﹕ Scheme: "mmsto"
01-04 05:37:48.933 396-616/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:48.993 544-544/com.android.phone D/dalvikvm﹕ GC_FOR_ALLOC freed 368K, 16% free 3403K/4004K, paused 26ms, total 27ms
01-04 05:37:49.013 396-407/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.013 396-407/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.013 396-407/system_process I/PackageManager﹕ Scheme: "sms"
01-04 05:37:49.013 396-407/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.043 1521-1521/? D/AndroidRuntime﹕ Shutting down VM
01-04 05:37:49.053 1521-1527/? D/jdwp﹕ Got wake-up signal, bailing out of select
01-04 05:37:49.063 1521-1527/? D/dalvikvm﹕ Debugger has detached; object registry had 1 entries
01-04 05:37:49.143 396-442/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.143 396-442/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.143 396-442/system_process I/PackageManager﹕ Scheme: "smsto"
01-04 05:37:49.143 396-442/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.193 396-616/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.193 396-616/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.203 396-616/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.203 396-616/system_process I/PackageManager﹕ Scheme: "mms"
01-04 05:37:49.253 396-407/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.253 396-407/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.253 396-407/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.263 396-407/system_process I/PackageManager﹕ Scheme: "mmsto"
01-04 05:37:49.383 396-408/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.383 396-408/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.383 396-408/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.393 396-408/system_process I/PackageManager﹕ Scheme: "sms"
01-04 05:37:49.523 544-544/com.android.phone D/dalvikvm﹕ GC_FOR_ALLOC freed 366K, 15% free 3405K/4004K, paused 84ms, total 85ms
01-04 05:37:49.543 396-572/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.543 396-572/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.543 396-572/system_process I/PackageManager﹕ Scheme: "smsto"
01-04 05:37:49.543 396-572/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.643 396-500/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.663 396-500/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.663 396-500/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.663 396-500/system_process I/PackageManager﹕ Scheme: "mms"
01-04 05:37:49.773 396-442/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:49.773 396-442/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:49.773 396-442/system_process I/PackageManager﹕ Scheme: "mmsto"
01-04 05:37:49.773 396-442/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:49.953 396-442/system_process D/dalvikvm﹕ GC_FOR_ALLOC freed 1034K, 19% free 6745K/8312K, paused 139ms, total 143ms
01-04 05:37:50.043 396-499/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:50.043 396-499/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:50.043 396-499/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:50.053 396-499/system_process I/PackageManager﹕ Scheme: "sms"
01-04 05:37:50.153 396-500/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:50.153 396-500/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:50.153 396-500/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:50.163 396-500/system_process I/PackageManager﹕ Scheme: "smsto"
01-04 05:37:50.313 544-544/com.android.phone D/dalvikvm﹕ GC_FOR_ALLOC freed 363K, 16% free 3402K/4004K, paused 58ms, total 60ms
01-04 05:37:50.363 396-408/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:50.363 396-408/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:50.363 396-408/system_process I/PackageManager﹕ Scheme: "mms"
01-04 05:37:50.363 396-408/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:50.453 396-442/system_process I/PackageManager﹕ Action: "android.intent.action.SENDTO"
01-04 05:37:50.453 396-442/system_process I/PackageManager﹕ Category: "android.intent.category.DEFAULT"
01-04 05:37:50.453 396-442/system_process I/PackageManager﹕ Adding preferred activity ComponentInfo{com.android.mms/com.android.mms.ui.ComposeMessageActivity} for user 0 :
01-04 05:37:50.463 396-442/system_process I/PackageManager﹕ Scheme: "mmsto"
01-04 05:37:50.633 1537-1537/? D/AndroidRuntime﹕ >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<<
01-04 05:37:50.663 1537-1537/? D/AndroidRuntime﹕ CheckJNI is ON
01-04 05:37:50.893 1537-1537/? D/dalvikvm﹕ Trying to load lib libjavacore.so 0x0
01-04 05:37:50.903 1537-1537/? D/dalvikvm﹕ Added shared lib libjavacore.so 0x0
01-04 05:37:50.953 1537-1537/? D/dalvikvm﹕ Trying to load lib libnativehelper.so 0x0
01-04 05:37:50.953 1537-1537/? D/dalvikvm﹕ Added shared lib libnativehelper.so 0x0
01-04 05:37:50.963 1537-1537/? D/dalvikvm﹕ No JNI_OnLoad found in libnativehelper.so 0x0, skipping init
01-04 05:37:51.093 396-412/system_process W/RecognitionManagerService﹕ no available voice recognition services found for user 0
01-04 05:37:51.393 1537-1537/? D/dalvikvm﹕ Note: class Landroid/app/ActivityManagerNative; has 179 unimplemented (abstract) methods
01-04 05:37:52.003 1537-1537/? E/memtrack﹕ Couldn't load memtrack module (No such file or directory)
01-04 05:37:52.003 1537-1537/? E/android.os.Debug﹕ failed to load memtrack module: -2
01-04 05:37:52.393 1537-1537/? D/AndroidRuntime﹕ Calling main entry com.android.commands.am.Am
01-04 05:37:52.473 396-408/system_process I/ActivityManager﹕ Force stopping com.PacchettoPrincipale.app appid=10052 user=-1: set debug app
01-04 05:37:52.473 396-408/system_process I/ActivityManager﹕ START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.PacchettoPrincipale.app/.Login} from pid 1537
01-04 05:37:52.533 51-51/? D/gralloc﹕ Registering a buffer in the process that created it. This may cause memory ordering problems.
01-04 05:37:52.533 51-51/? E/libEGL﹕ called unimplemented OpenGL ES API
01-04 05:37:52.543 51-51/? E/libEGL﹕ called unimplemented OpenGL ES API
01-04 05:37:52.543 51-51/? E/libEGL﹕ called unimplemented OpenGL ES API
01-04 05:37:52.543 51-51/? E/libEGL﹕ called unimplemented OpenGL ES API
01-04 05:37:52.543 51-51/? E/SurfaceFlinger﹕ glCheckFramebufferStatusOES error 715018613
01-04 05:37:52.543 51-51/? E/SurfaceFlinger﹕ got GL_FRAMEBUFFER_COMPLETE_OES error while taking screenshot
01-04 05:37:52.543 51-51/? E/libEGL﹕ called unimplemented OpenGL ES API
01-04 05:37:52.543 51-51/? E/libEGL﹕ called unimplemented OpenGL ES API
01-04 05:37:52.603 396-408/system_process W/WindowManager﹕ Screenshot failure taking screenshot for (246x410) to layer 21010
01-04 05:37:52.683 1537-1537/? D/AndroidRuntime﹕ Shutting down VM
01-04 05:37:52.693 1537-1543/? D/jdwp﹕ Got wake-up signal, bailing out of select
01-04 05:37:52.693 1537-1543/? D/dalvikvm﹕ Debugger has detached; object registry had 1 entries
01-04 05:37:52.813 396-572/system_process I/ActivityManager﹕ Start proc com.PacchettoPrincipale.app for activity com.PacchettoPrincipale.app/.Login: pid=1547 uid=10052 gids={50052, 3003}
01-04 05:37:52.853 1547-1547/com.PacchettoPrincipale.app D/dalvikvm﹕ Not late-enabling CheckJNI (already on)
01-04 05:37:53.483 1547-1547/com.PacchettoPrincipale.app W/ActivityThread﹕ Application com.PacchettoPrincipale.app is waiting for the debugger on port 8100...
01-04 05:37:53.533 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ Sending WAIT chunk
01-04 05:37:53.553 1547-1553/com.PacchettoPrincipale.app I/dalvikvm﹕ Debugger is active
01-04 05:37:53.733 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ Debugger has connected
01-04 05:37:53.733 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:53.813 396-410/system_process I/Choreographer﹕ Skipped 35 frames! The application may be doing too much work on its main thread.
01-04 05:37:54.003 396-410/system_process I/Choreographer﹕ Skipped 47 frames! The application may be doing too much work on its main thread.
01-04 05:37:54.073 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:54.283 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:54.383 396-410/system_process I/Choreographer﹕ Skipped 97 frames! The application may be doing too much work on its main thread.
01-04 05:37:54.493 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:54.703 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:54.863 396-411/system_process I/Choreographer﹕ Skipped 141 frames! The application may be doing too much work on its main thread.
01-04 05:37:54.903 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:54.993 396-410/system_process I/Choreographer﹕ Skipped 47 frames! The application may be doing too much work on its main thread.
01-04 05:37:55.223 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:55.433 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:55.433 396-411/system_process I/Choreographer﹕ Skipped 138 frames! The application may be doing too much work on its main thread.
01-04 05:37:55.463 396-410/system_process I/Choreographer﹕ Skipped 50 frames! The application may be doing too much work on its main thread.
01-04 05:37:55.643 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:55.873 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:56.073 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ waiting for debugger to settle...
01-04 05:37:56.123 396-410/system_process I/Choreographer﹕ Skipped 51 frames! The application may be doing too much work on its main thread.
01-04 05:37:56.133 396-411/system_process I/Choreographer﹕ Skipped 94 frames! The application may be doing too much work on its main thread.
01-04 05:37:56.283 1547-1547/com.PacchettoPrincipale.app I/System.out﹕ debugger has settled (1315)
01-04 05:37:56.283 396-410/system_process I/Choreographer﹕ Skipped 41 frames! The application may be doing too much work on its main thread.
01-04 05:37:57.203 396-411/system_process I/Choreographer﹕ Skipped 65 frames! The application may be doing too much work on its main thread.
01-04 05:37:58.053 396-410/system_process I/Choreographer﹕ Skipped 45 frames! The application may be doing too much work on its main thread.
01-04 05:37:58.773 396-410/system_process I/Choreographer﹕ Skipped 36 frames! The application may be doing too much work on its main thread.
01-04 05:37:58.793 396-430/system_process E/NetdConnector﹕ NDC Command {74 bandwidth gettetherstats} took too long (588ms)
01-04 05:37:59.303 396-435/system_process D/MobileDataStateTracker﹕ default: setPolicyDataEnable(enabled=true)
01-04 05:38:00.733 1547-1547/com.PacchettoPrincipale.app D/gralloc_goldfish﹕ Emulator without GPU emulation detected.
01-04 05:38:00.933 396-410/system_process I/ActivityManager﹕ Displayed com.PacchettoPrincipale.app/.Login: +8s179ms
01-04 05:38:10.983 396-460/system_process D/LightsService﹕ Excessive delay setting light: 103ms
01-04 05:39:33.723 396-659/system_process D/LightsService﹕ Excessive delay setting light: 68ms
01-04 05:39:34.053 396-659/system_process D/LightsService﹕ Excessive delay setting light: 73ms
01-04 05:39:36.323 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.323 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.323 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.333 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.333 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.333 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.343 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.343 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.343 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.353 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:36.353 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressStandard.ogg
01-04 05:39:36.353 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressStandard.ogg
01-04 05:39:36.353 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressSpacebar.ogg
01-04 05:39:36.353 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressSpacebar.ogg
01-04 05:39:36.353 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressDelete.ogg
01-04 05:39:36.353 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressDelete.ogg
01-04 05:39:36.353 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressReturn.ogg
01-04 05:39:36.363 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressReturn.ogg
01-04 05:39:36.363 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressInvalid.ogg
01-04 05:39:36.363 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressInvalid.ogg
01-04 05:39:36.363 396-440/system_process W/AudioService﹕ onLoadSoundEffects(), Error -1 while loading samples
01-04 05:39:36.403 396-572/system_process I/ActivityManager﹕ START u0 {cmp=com.PacchettoPrincipale.app/.Register} from pid 1547
01-04 05:39:36.703 1547-1547/com.PacchettoPrincipale.app I/Choreographer﹕ Skipped 66 frames! The application may be doing too much work on its main thread.
01-04 05:39:39.623 1547-1547/com.PacchettoPrincipale.app I/Choreographer﹕ Skipped 109 frames! The application may be doing too much work on its main thread.
01-04 05:39:40.583 396-410/system_process I/Choreographer﹕ Skipped 35 frames! The application may be doing too much work on its main thread.
01-04 05:39:40.613 396-410/system_process I/ActivityManager﹕ Displayed com.PacchettoPrincipale.app/.Register: +4s157ms
01-04 05:39:40.803 396-410/system_process I/Choreographer﹕ Skipped 31 frames! The application may be doing too much work on its main thread.
01-04 05:39:40.943 396-410/system_process I/Choreographer﹕ Skipped 35 frames! The application may be doing too much work on its main thread.
01-04 05:39:41.073 396-410/system_process I/Choreographer﹕ Skipped 32 frames! The application may be doing too much work on its main thread.
01-04 05:39:42.493 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.493 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.513 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.513 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.523 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.533 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.533 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.533 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.533 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.533 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/Effect_Tick.ogg
01-04 05:39:42.553 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressStandard.ogg
01-04 05:39:42.553 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressStandard.ogg
01-04 05:39:42.573 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressSpacebar.ogg
01-04 05:39:42.573 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressSpacebar.ogg
01-04 05:39:42.583 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressDelete.ogg
01-04 05:39:42.583 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressDelete.ogg
01-04 05:39:42.583 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressReturn.ogg
01-04 05:39:42.583 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressReturn.ogg
01-04 05:39:42.583 396-440/system_process E/SoundPool﹕ error loading /system/media/audio/ui/KeypressInvalid.ogg
01-04 05:39:42.593 396-440/system_process W/AudioService﹕ Soundpool could not load file: /system/media/audio/ui/KeypressInvalid.ogg
01-04 05:39:42.593 396-440/system_process W/AudioService﹕ onLoadSoundEffects(), Error -1 while loading samples
01-04 05:39:42.953 1547-1547/com.PacchettoPrincipale.app D/dalvikvm﹕ GC_FOR_ALLOC freed 123K, 7% free 3135K/3344K, paused 43ms, total 56ms
01-04 05:39:42.953 1547-1547/com.PacchettoPrincipale.app I/dalvikvm-heap﹕ Grow heap (frag case) to 3.749MB for 635812-byte allocation
01-04 05:39:43.033 1547-1556/com.PacchettoPrincipale.app D/dalvikvm﹕ GC_FOR_ALLOC freed 6K, 6% free 3750K/3968K, paused 43ms, total 43ms
01-04 05:39:43.653 1547-1547/com.PacchettoPrincipale.app I/Choreographer﹕ Skipped 69 frames! The application may be doing too much work on its main thread.
哪里可能是错误？
答案 0 :(得分：1)
更改此
new LoadFermate(getApplicationContext()).execute();
到
new LoadFermate(Register.this).execute();
编辑：
Toast are not shown
请致电show()
Toast.makeText(this.context , testo, Toast.LENGTH_SHORT).show();
// forgot to call show
请参阅Commonsware，回答关于COntext的更好的解释
答案 1 :(得分：0)
您正在onCreate中调用您的异步任务;试着把它放在onResume中。 onCreate仅用于创建UI，不用于进行任何网络调用。