我在我的应用程序中遇到了一些问题，有时它可以工作并显示我需要的所有数据，但有时它只是强制关闭我的应用程序，并在电话日志中显示出越界异常。顺便说一句，它在我的模拟器中工作得很好。不知道该怎么办了，所以在那里寻求帮助。这是我的电话记录。添加它只发生在 ICS 中，而不是 Gingerbread。
V/data content(11074): Data1
V/data id (11074): 0
V/data name(11074): Data Name
V/data time(11074): Aug 25, 2012 10:00 PM
D/AndroidRuntime(11074): Shutting down VM
W/dalvikvm(11074): threadid=1: thread exiting with uncaught exception (group=0x40c531f8)
E/AndroidRuntime(11074): FATAL EXCEPTION: main
E/AndroidRuntime(11074): java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
E/AndroidRuntime(11074): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
E/AndroidRuntime(11074): at java.util.ArrayList.get(ArrayList.java:304)
E/AndroidRuntime(11074): at com.android.guestlist.DataActivity.showMyRsvp(RsvpActivity.java:167)
E/AndroidRuntime(11074): at com.android.guestlist.DataActivity$AsyncGetRsvp.onPostExecute(DataActivity.java:92)
E/AndroidRuntime(11074): at com.android.guestlist.DataActivity$AsyncGetRsvp.onPostExecute(DataActivity.java:1)
E/AndroidRuntime(11074): at android.os.AsyncTask.finish(AsyncTask.java:602)
E/AndroidRuntime(11074): at android.os.AsyncTask.access$600(AsyncTask.java:156)
E/AndroidRuntime(11074): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:615)
E/AndroidRuntime(11074): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(11074): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime(11074): at android.app.ActivityThread.main(ActivityThread.java:4517)
E/AndroidRuntime(11074): at java.lang.reflect.Method.invokeNative(NativeMethod)
E/AndroidRuntime(11074): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(11074): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:993)
E/AndroidRuntime(11074): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:760)
E/AndroidRuntime(11074): at dalvik.system.NativeStart.main(Native Method)
W/ActivityManager( 2089): Force finishing activity com.android.guestlist/.CustomTabActivity
E/android.os.Debug( 2089): !@Dumpstate > dumpstate -k -t -n -z -d -o /data/log/dumpstate_app_error
这是我的活动代码：
public class RsvpActivity extends Activity {
JSONArray jArray;
String result = null;
InputStream is = null;
StringBuilder sb=null;
String fb_id = "";
String first_name = "";
String last_name = "";
String gender = "";
public static List<String> eId3 = new ArrayList<String>();
public static List<String> eBar3 = new ArrayList<String>();
public static List<String> eName3 = new ArrayList<String>();
public static List<String> eTime3 = new ArrayList<String>();
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
fb_id = getIntent().getStringExtra("fb_id");
first_name = getIntent().getStringExtra("first_name");
last_name = getIntent().getStringExtra("last_name");
gender = getIntent().getStringExtra("gender");
setContentView(R.layout.rsvp);
}
protected void onStart(){
super.onStart();
new AsyncGetRsvp().execute(fb_id, "MY URL HERE");
}
protected void onResume(){
super.onResume();
new AsyncGetRsvp().execute(fb_id, "MY URL HERE");
}
public class AsyncGetRsvp extends AsyncTask<String, Void, List<String>>{
private final ProgressDialog dialog = new ProgressDialog(RsvpActivity.this);
@Override
protected List<String> doInBackground(String... params) {
getRsvp(params[0], params[1]);
return null;
}
@Override
protected void onPreExecute() {
this.dialog.setMessage("Getting RSVPs");
this.dialog.show();
}
@Override
protected void onPostExecute(List<String> result) {
showMyRsvp();
if (this.dialog.isShowing()) {
this.dialog.dismiss();
}
}
}
public void showMyRsvp(){
// Get the TableLayout
final TableLayout tl = (TableLayout) findViewById(R.id.maintable2);
tl.removeAllViewsInLayout();
// Go through each item in the array
for (int current = 0; current < eId3.size(); current++)
{
Log.v("bar content",eBar3.get(current));
Log.v("bar id",eId3.get(current));
Log.v("bar name",eName3.get(current));
Log.v("bar time",eTime3.get(current));
// Create a TableRow and give it an ID
TableRow tr = new TableRow(this);
tr.setId(100+current);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
// Create a TextView to house the name of the province
final TextView clubName = new TextView(this);
clubName.setId(200+current);
clubName.setText(eBar3.get(current));
clubName.setTextColor(Color.WHITE);
clubName.setTextSize(12);
clubName.setTypeface(null, Typeface.BOLD);
clubName.setTag(eId3.get(current));
clubName.setGravity(Gravity.CENTER_VERTICAL);
clubName.setLayoutParams(new LayoutParams(
(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 65, getResources().getDisplayMetrics()),
LayoutParams.WRAP_CONTENT));
tr.addView(clubName);
//CREATE TEXT VIEW FOR EVENT NAME
TextView eventName = new TextView(this);
eventName.setId(current);
eventName.setText(eName3.get(current));
eventName.setGravity(Gravity.CENTER_VERTICAL);
eventName.setTextSize(12);
eventName.setTextColor(Color.WHITE);
eventName.setLayoutParams(new LayoutParams(
(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 120, getResources().getDisplayMetrics()),
LayoutParams.WRAP_CONTENT));
tr.addView(eventName);
//CREATE TEXT VIEW FOR EVENT TIME
TextView eventDate = new TextView(this);
eventDate.setId(current);
eventDate.setText(eTime3.get(current));
eventDate.setGravity(Gravity.CENTER_VERTICAL);
eventDate.setTextSize(12);
eventDate.setTextColor(Color.WHITE);
eventDate.setLayoutParams(new LayoutParams(
(int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 80, getResources().getDisplayMetrics()),
LayoutParams.WRAP_CONTENT));
tr.addView(eventDate);
// Add the TableRow to the TableLayout
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
final Intent i = new Intent(RsvpActivity.this, DetailsActivity.class);
i.putExtra("bar_id",eId3.get(current));
i.putExtra("fb_id", fb_id);
i.putExtra("first_name",first_name);
i.putExtra("last_name",last_name);
i.putExtra("gender",gender);
tr.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// eId3.get(current)
startActivity(i);
}
});
}
}
public void getRsvp(String fb_id, String url){
String result = "";
eId3.clear();
eBar3.clear();
eName3.clear();
eTime3.clear();
//the year data to send
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("fb_id",fb_id));
//http post
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}catch(Exception e){
Log.e("connection","error in http client");
}
//convert response to string
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
sb = new StringBuilder();
String line = "0";
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
result=sb.toString();
}catch(Exception e){
Log.e("log_tag", "Error converting result "+e.toString());
}
try{
JSONArray jArray = new JSONArray(result);
JSONObject json_data=null;
for(int i=0;i<jArray.length();i++){
json_data = jArray.getJSONObject(i);
eId3.add(json_data.getString("event_id"));
eBar3.add(json_data.getString("bar_name"));
eName3.add(json_data.getString("event_name"));
eTime3.add(json_data.getString("date"));
}
}catch(JSONException e){
eId3.add("0");
eBar3.add("No Data");
eName3.add("No Data");
eTime3.add("No Data");
Log.e("log_tag", "Error parsing data "+e.toString());
}
}
}