hongshaorou/openrocket
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Rework the loader activity base class so it is compatible with ICS.

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This commit is contained in:
Kevin Ruland 2012-06-14 13:17:55 +00:00
parent 90c2bdb7d8
commit 0461ea5ced
1 changed files with 58 additions and 8 deletions
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66
android/src/net/sf/openrocket/android/rocket/OpenRocketLoaderActivity.java
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@ -34,7 +34,14 @@ implements TCQueryAction.OnTCQueryCompleteListener, OpenRocketLoaderFragment.OnO
private final static String MISSING_MOTOR_DIAG_FRAGMENT_TAG = "missingmotordialog";
private final static String MISSING_MOTOR_DOWNLOAD_FRAGMENT_TAG = "missingmotortask";
/*
* Set to true when we have started to load a file. Is saved in InstanceState.
*/
private boolean isLoading = false;
/*
* Set to the Uri of the file we are supposed to load. Is saved in InstanceState.
*/
private Uri fileToLoad = null;
@Override
protected void onPostCreate(Bundle savedInstanceState) {
@ -42,15 +49,40 @@ implements TCQueryAction.OnTCQueryCompleteListener, OpenRocketLoaderFragment.OnO
Intent i = getIntent();
if (Intent.ACTION_VIEW.equals(i.getAction()) && i.getData() != null ) {
Uri file = i.getData();
loadOrkFile(file);
fileToLoad = file;
loadOrkFile();
} else {
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
AndroidLogWrapper.d(OpenRocketLoaderActivity.class, "onSaveInstanceState");
outState.putBoolean("isLoading", isLoading);
if ( fileToLoad != null ) {
outState.putParcelable("fileToLoad", fileToLoad);
}
super.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
AndroidLogWrapper.d(OpenRocketLoaderActivity.class, "onRestoreInstanceState");
isLoading = savedInstanceState.getBoolean("isLoading",false);
if ( savedInstanceState.containsKey("fileToLoad") ) {
fileToLoad = savedInstanceState.getParcelable("fileToLoad");
}
super.onRestoreInstanceState(savedInstanceState);
}
@Override
protected void onResume() {
AndroidLogWrapper.d(OpenRocketLoaderActivity.class, "onResume");
super.onResume();
// Start loading a file if we have a file and are not already loading one.
if ( fileToLoad != null && !isLoading ) {
loadOrkFile();
}
}
/* (non-Javadoc)
@ -58,11 +90,22 @@ implements TCQueryAction.OnTCQueryCompleteListener, OpenRocketLoaderFragment.OnO
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
AndroidLogWrapper.d(OpenRocketLoaderActivity.class, "onActivityResult");
switch ( requestCode ) {
case PICK_ORK_FILE_RESULT:
if(resultCode==RESULT_OK){
Uri file = data.getData();
loadOrkFile(file);
fileToLoad = file;
// It would be nice to just start loading the file - but that doesn't work correctly.
// I'm uncertain if it is a bug in Android 14/15 or a bug in the v4 support library.
// essentially what happens is, when the FileBrowserActivity is brought up,
// this activity goes through the saveInstanceState calls to push it to the background.
// When the FileBrowserActivity returns the result, this.onActivityResult is called
// prior to any of the other lifecycle methods (onRestoreInstanceState as documented, but onStart is
// a bug. Since onStart hasn't been called, this activity is not able to create fragments - which
// are used to indicate progress etc.
// Instead of calling loadOrkFile() here, we push the file Uri into a member variable,
// then check the member variable in onResume to actuall kick off the work.
}
break;
default:
@ -96,14 +139,21 @@ implements TCQueryAction.OnTCQueryCompleteListener, OpenRocketLoaderFragment.OnO
}
}
private void loadOrkFile( Uri file ) {
private void loadOrkFile( ) {
// a little protection.
if ( fileToLoad == null ) {
return;
}
isLoading = true;
CurrentRocketHolder.getCurrentRocket().setFileUri( file );
AndroidLogWrapper.d(OpenRocketLoaderActivity.class,"Use ork file: " + file);
String path = file.getPath();
CurrentRocketHolder.getCurrentRocket().setFileUri( fileToLoad );
AndroidLogWrapper.d(OpenRocketLoaderActivity.class,"Use ork file: " + fileToLoad);
String path = fileToLoad.getPath();
File orkFile = new File(path);
getSupportFragmentManager().beginTransaction().add( OpenRocketLoaderFragment.newInstance(orkFile), "loader").commit();
// Also need commitAllowingState loss because of a bug in v4 dialog show.
getSupportFragmentManager().beginTransaction()
.add( OpenRocketLoaderFragment.newInstance(orkFile), "loader")
.commitAllowingStateLoss();
}