私は現在 Android プロジェクトに取り組んでおり、特定のエラーが発生しました。私が抱えているエラーは、ウィンドウリークエラーです。この問題を引き起こしていると考えられるのは、プロジェクトのレイアウト、またはそれが ListView Activity であった場合だけですが、このエラーをこれまで見たことがないため、よくわかりません。そのため、誰かがこのエラーの原因とそれを修正するために何ができるかを教えてくれることを望んでいました.
07-29 13:43:59.891: E/WindowManager(952): Activity com.theproblemsolver.ListView has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{40d0f620 V.E..... R.....ID 0,0-234,72} that was originally added here
07-29 13:43:59.891: E/WindowManager(952): android.view.WindowLeaked: Activity com.theproblemsolver.ListView has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{40d0f620 V.E..... R.....ID 0,0-234,72} that was originally added here
07-29 13:43:59.891: E/WindowManager(952): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:354)
07-29 13:43:59.891: E/WindowManager(952): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:216)
07-29 13:43:59.891: E/WindowManager(952): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
07-29 13:43:59.891: E/WindowManager(952): at android.app.Dialog.show(Dialog.java:281)
07-29 13:43:59.891: E/WindowManager(952): at com.theproblemsolver.ListView$LoadAllData.onPreExecute(ListView.java:86)
07-29 13:43:59.891: E/WindowManager(952): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
07-29 13:43:59.891: E/WindowManager(952): at android.os.AsyncTask.execute(AsyncTask.java:534)
07-29 13:43:59.891: E/WindowManager(952): at com.theproblemsolver.ListView.onCreate(ListView.java:52)
07-29 13:43:59.891: E/WindowManager(952): at android.app.Activity.performCreate(Activity.java:5104)
07-29 13:43:59.891: E/WindowManager(952): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
07-29 13:43:59.891: E/WindowManager(952): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
07-29 13:43:59.891: E/WindowManager(952): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
07-29 13:43:59.891: E/WindowManager(952): at android.app.ActivityThread.access$600(ActivityThread.java:141)
07-29 13:43:59.891: E/WindowManager(952): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
07-29 13:43:59.891: E/WindowManager(952): at android.os.Handler.dispatchMessage(Handler.java:99)
07-29 13:43:59.891: E/WindowManager(952): at android.os.Looper.loop(Looper.java:137)
07-29 13:43:59.891: E/WindowManager(952): at android.app.ActivityThread.main(ActivityThread.java:5041)
07-29 13:43:59.891: E/WindowManager(952): at java.lang.reflect.Method.invokeNative(Native Method)
07-29 13:43:59.891: E/WindowManager(952): at java.lang.reflect.Method.invoke(Method.java:511)
07-29 13:43:59.891: E/WindowManager(952): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
07-29 13:43:59.891: E/WindowManager(952): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
07-29 13:43:59.891: E/WindowManager(952): at dalvik.system.NativeStart.main(Native Method)
リストビュー：
public class ListView extends ListActivity {
private ProgressDialog pDialog;
JSONParsser jParser = new JSONParsser();
ArrayList<HashMap<String, String>> questionList;
private static String URI = "http://example.com/json";;
//JSONObject json = jParser.getJSONFromURI(URI);
final String TAG_QUESTION_SUBJECT = "Subject";
final String TAG_QUESTION_NUMANSWERS = "NumAnswers";
final String TAG_QUESTION = "Question";
final String TAG_QUESTION_CONTENT = "Content";
final String TAG_QUESTION_CHOSENANSWER = "ChosenAnswer";
final String TAG_ANSWERS = "Answers";
final String TAG_ANSWER = "Answer";
JSONArray Question = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.listview);
//questionList = new ArrayList<HashMap<String, String>>();
android.widget.ListView lv = getListView();
new LoadAllData().execute();
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == 100) {
Intent intent = getIntent();
startActivity(intent);
finish();
}
}
class LoadAllData extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(ListView.this);
pDialog.setMessage("Loading Data. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
//JSONParsser jParser = new JSONParsser();
}
protected String doInBackground(String... args) {
JSONObject json = jParser.getJSONFromURI(URI);
try {
Question = json.getJSONArray(TAG_QUESTION);
for(int i = 0; i < Question.length(); i++) {
JSONObject q = Question.getJSONObject(i);
String Subject = q.getString(TAG_QUESTION_SUBJECT);
String NumAnswers = q.getString(TAG_QUESTION_NUMANSWERS);
String ChosenAnswers = q.getString(TAG_QUESTION_CHOSENANSWER);
String Content = q.getString(TAG_QUESTION_CONTENT);
JSONObject Answers = q.getJSONObject(TAG_ANSWERS);
String Answer = Answers.getString(TAG_ANSWER);
questionList = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_QUESTION_SUBJECT, Subject);
map.put(TAG_QUESTION_NUMANSWERS, NumAnswers);
questionList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String file_URI) {
if (pDialog != null && pDialog.isShowing()) pDialog.dismiss();
runOnUiThread(new Runnable() {
public void run() {
ListAdapter adapter = new SimpleAdapter(getBaseContext(), questionList,
R.layout.row,
new String[] { TAG_QUESTION_SUBJECT, TAG_QUESTION_NUMANSWERS }, new int[] {
R.id.Subject, R.id.NumAnswers });
setListAdapter(adapter);
}
});
}
}}
Row.xml レイアウト
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="@+id/Subject"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/NumAnswers"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>