在更新数据和显示 dialogFragment 期间点击主页时崩溃。非法状态异常
Crash when tap Home during update data and show dialogFragment. IllegalStateException
在我的例子中,在设置我的应用程序时,我点击按钮更新数据库,它向我显示带有进度的 dialogFragment,如果我点击主页按钮 - 我的应用程序崩溃。
记录错误:
java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1489)
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1507)
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:634)
at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:613)
at android.support.v4.app.DialogFragment.dismissInternal(DialogFragment.java:201)
at android.support.v4.app.DialogFragment.dismiss(DialogFragment.java:167)
at com.guardian.glass.ui.settings.SettingsActivity.onComplete(SettingsActivity.java:328)
at com.guardian.glass.ui.DialogProgressFragment.onDataLoaded(DialogProgressFragment.java:63)
在我的class SettingsActivity 方法代码中弹出错误。
private void fetchDatabaseFromServer() {
UserOperationsTask getCountriesTask = new UpdateCountries(new DialogProgressFragment() {
@Override
public void onComplete(boolean success) {
dismiss(); // here i get error
updateDatabaseSize();
updateFilters();
MeasureUtils.makeDefaultTemplate(SettingsActivity.this, true);
}
});
getCountriesTask.execute(SettingsActivity.this);
showProgress();
updateDataBaseProfile();
}
我的内心class
private class UpdateCountries extends UserOperationsTask {
final DialogProgressFragment progressDialog;
UpdateCountries(DialogProgressFragment progressDialog) {
super(UserOperationsTask.TaskMode.MODE_LOAD_COUNTRIES, null);
this.progressDialog = progressDialog;
}
@Override
public void onLoadFinished(Bundle resultData) {
setRegionLabels();
updateFilters();
hideProgress();
String errorMessage = resultData.getString(UserOperationsTask.RESULT_ERROR_STRING);
if (errorMessage != null) {
Log.d(TAG, "getCountriesFromServer error: " + errorMessage);
showMessage(getString(R.string.info_title), getString(R.string.server_request_error));
} else {
progressDialog.start(SettingsActivity.this, DialogProgressFragment.DialogMode.MODE_UPDATE);
progressDialog.setCancelable(false);
progressDialog.show(getSupportFragmentManager(), DialogProgressFragment.class.getSimpleName());
}
}
}
请告诉我如何最好地解决这个问题?
请注意,如果您在 onstop 后更新 ui,应用程序将自动崩溃。
因此,如果您正在异步更新应用程序的 ui,请确保它们是某种检测您的 activity 未处于停止状态的机制。
或者您可以在 dialogfragment class.
中将提交更改为 commitAllowingStateLoss
使用 commitAllowingStateLoss() 而不是 commit()。如果发生状态丢失,它不会抛出异常。
谢谢大家!我找到了解决方案 - 就我而言,而不是
dismiss();
更好地使用
dismissAllowingStateLoss();
在我的例子中,在设置我的应用程序时,我点击按钮更新数据库,它向我显示带有进度的 dialogFragment,如果我点击主页按钮 - 我的应用程序崩溃。
记录错误:
java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1489)
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1507)
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:634)
at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:613)
at android.support.v4.app.DialogFragment.dismissInternal(DialogFragment.java:201)
at android.support.v4.app.DialogFragment.dismiss(DialogFragment.java:167)
at com.guardian.glass.ui.settings.SettingsActivity.onComplete(SettingsActivity.java:328)
at com.guardian.glass.ui.DialogProgressFragment.onDataLoaded(DialogProgressFragment.java:63)
在我的class SettingsActivity 方法代码中弹出错误。
private void fetchDatabaseFromServer() {
UserOperationsTask getCountriesTask = new UpdateCountries(new DialogProgressFragment() {
@Override
public void onComplete(boolean success) {
dismiss(); // here i get error
updateDatabaseSize();
updateFilters();
MeasureUtils.makeDefaultTemplate(SettingsActivity.this, true);
}
});
getCountriesTask.execute(SettingsActivity.this);
showProgress();
updateDataBaseProfile();
}
我的内心class
private class UpdateCountries extends UserOperationsTask {
final DialogProgressFragment progressDialog;
UpdateCountries(DialogProgressFragment progressDialog) {
super(UserOperationsTask.TaskMode.MODE_LOAD_COUNTRIES, null);
this.progressDialog = progressDialog;
}
@Override
public void onLoadFinished(Bundle resultData) {
setRegionLabels();
updateFilters();
hideProgress();
String errorMessage = resultData.getString(UserOperationsTask.RESULT_ERROR_STRING);
if (errorMessage != null) {
Log.d(TAG, "getCountriesFromServer error: " + errorMessage);
showMessage(getString(R.string.info_title), getString(R.string.server_request_error));
} else {
progressDialog.start(SettingsActivity.this, DialogProgressFragment.DialogMode.MODE_UPDATE);
progressDialog.setCancelable(false);
progressDialog.show(getSupportFragmentManager(), DialogProgressFragment.class.getSimpleName());
}
}
}
请告诉我如何最好地解决这个问题?
请注意,如果您在 onstop 后更新 ui,应用程序将自动崩溃。 因此,如果您正在异步更新应用程序的 ui,请确保它们是某种检测您的 activity 未处于停止状态的机制。
或者您可以在 dialogfragment class.
中将提交更改为 commitAllowingStateLoss使用 commitAllowingStateLoss() 而不是 commit()。如果发生状态丢失,它不会抛出异常。
谢谢大家!我找到了解决方案 - 就我而言,而不是
dismiss();
更好地使用
dismissAllowingStateLoss();