在显示进度对话框时更改屏幕方向时收到此异常:
08-25 06:03:06.482: E/WindowManager(734): Activity com.org.scgroup.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@43cf9838 that was originally added here
08-25 06:03:06.482: E/WindowManager(734): android.view.WindowLeaked: Activity com.org.scgroup.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@43cf9838 that was originally added here
08-25 06:03:06.482: E/WindowManager(734): at android.view.ViewRoot.<init>(ViewRoot.java:227)
08-25 06:03:06.482: E/WindowManager(734): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148)
08-25 06:03:06.482: E/WindowManager(734): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
08-25 06:03:06.482: E/WindowManager(734): at android.view.Window$LocalWindowManager.addView(Window.java:424)
08-25 06:03:06.482: E/WindowManager(734): at android.app.Dialog.show(Dialog.java:239)
08-25 06:03:06.482: E/WindowManager(734): at com.org.scgroup.MainActivity.onPreExecute(MainActivity.java:253)
08-25 06:03:06.482: E/WindowManager(734): at com.org.scgroup.BookFragment.downloadBook(BookFragment.java:125)
08-25 06:03:06.482: E/WindowManager(734): at com.org.scgroup.BookFragment$1.onClick(BookFragment.java:255)
08-25 06:03:06.482: E/WindowManager(734): at android.view.View.performClick(View.java:2364)
08-25 06:03:06.482: E/WindowManager(734): at android.view.View.onTouchEvent(View.java:4179)
我尝试过像AsyncTask这样的很多方法,但它们无法工作。 Here就是其中之一。
我想要做的是从片段下载数据时显示进度对话框。这是我的尝试:
片段
static interface TaskCallbacks {
void onPreExecute();
void onProgressUpdate(int percent);
void onPostExecute();
void onError();
void reset();
}
private class DownloadListener extends AbstractNotify<List<Entry>>{
@Override
public void onRequestFailure(SpiceException arg0) {
Ln.e(arg0);
isDownloading = false;
mCallbacks.onError();
}
@Override
public void onRequestProgressUpdate(RequestProgress progress) {
mCallbacks.onProgressUpdate((int)progress.getProgress());
}
@Override
public void onRequestSuccess(List<Entry> result) {
Ln.d("total download %d files", result.size());
isDownloading = false;
mCallbacks.onPostExecute();
}
}
//Execute the download request
getSpiceManager().excute(request, new DownloadListener());
@Override
public void onAttach(android.app.Activity activity) {
super.onAttach(activity);
Ln.d("onAttach activity");
mCallbacks = (TaskCallbacks) activity;
};
@Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
活动
class BaseActivity implements TaskCallbacks{
@Override
public void onCreate(Bundle savedInstanceState) {
// try to reshow dialog
if(null != savedInstanceState){
isDownloading = savedInstanceState.getBoolean(IS_DOWNLOADING);
currentProgress = savedInstanceState.getInt(CURRENT_PROGRESS);
downloadDialog.setProgress(currentProgress);
if(isDownloading){
downloadDialog.show();
}
}
}
@Override
public void onPreExecute() {
if(null != downloadDialog){
downloadDialog.show();
}
isDownloading = true;
}
@Override
public void onProgressUpdate(int percent) {
downloadDialog.incrementProgressBy(percent);
}
@Override
public void onPostExecute() {
if(null != downloadDialog && downloadDialog.isShowing()){
downloadDialog.setProgress(100);
downloadDialog.dismiss();
}
isDownloading = false;
}
@Override
public void onError() {
if(null != downloadDialog && downloadDialog.isShowing()){
downloadDialog.dismiss();
}
isDownloading = false;
}
}
我不知道为什么这种方法适用于asynctask但robospice
没有。我错过了什么吗?
P / S :在清单中设置android:configChanges
或禁用屏幕方向可能有效,但我不想使用这些方法。所以,请告诉我我错在哪里,或者使用robospice
给我一个可行的示例,其中包含进度对话框。提前致谢!
的更新
正如 Snicolas 推荐的那样,我尝试使用DialogFragments
,没有例外,但是当执行请求时屏幕方向发生变化时,对话框停止更新进度,它始终显示,我无法解雇它
答案 0 :(得分:3)
你的问题与RoboSpice无关。你不应该使用Dialog,因为它可能会泄漏它的窗口......就像你的情况一样:)
做得好很难。这就是谷歌推出DialogFragments的原因。正如您将在the docs中看到的,DialogFragments非常易于使用,您基本上将对话框包含在Fragment中。
这样,FragmentManager将按照活动的生命周期来管理对话框的生命周期。
答案 1 :(得分:-3)
试一下
android:configChanges="orientation|screenSize|screenLayout|fontScale"
在Manifest.xml中添加这些行