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first cut at opening dict in a cancellable task with indeterminate

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progress dialog.  Doesn't look promising: time to open dict increases
three or four fold.  Unless I can address that this will be abandoned
as slow opens are only a problem with pathologically large dicts like
Polish.  Still to try: replace indeterminate progress, which needs
periodic redraws, with static text.
This commit is contained in:
Andy2 2011-12-10 08:47:09 -08:00
parent 07635ede37
commit 6f76d99986
2 changed files with 139 additions and 43 deletions
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2
xwords4/android/XWords4/res/values/strings.xml
View file

@ -1819,4 +1819,6 @@
version: \"%s\"; and make/model of your phone or
tablet.)"</string>
<string name="scanning_dictf">Scanning %s</string>
</resources>

180
xwords4/android/XWords4/src/org/eehouse/android/xw4/DictBrowseActivity.java
View file

@ -20,9 +20,13 @@
package org.eehouse.android.xw4;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.DataSetObserver;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
@ -65,28 +69,107 @@ public class DictBrowseActivity extends XWListActivity
private int m_minAvail;
private int m_maxAvail;
private int[] m_counts;
private DictLoader m_loader;
private int m_nWords;
private class DictLoader extends AsyncTask<Void, Void, Void>
implements DialogInterface.OnCancelListener
{
private int m_closureTask;
private Intent m_intent;
private ProgressDialog m_progress;
// - Steps to reproduce the problem:
// Create ListView, set custom adapter which implements ListAdapter and
// SectionIndexer but do not extends BaseAdapter. Enable fast scroll in
// layout. This will effect in ClassCastException.
public DictLoader( Intent intent )
{
super();
m_intent = intent;
String msg = Utils.format( DictBrowseActivity.this,
R.string.scanning_dictf, m_name );
m_progress = ProgressDialog.show( DictBrowseActivity.this,
msg, null, true, true, this );
}
protected Void doInBackground( Void... nothing )
{
int closure = m_dictClosure;
DbgUtils.logf( "doInBackground" );
if ( null == m_counts ) {
m_counts = XwJNI.dict_iter_getCounts( closure );
}
DbgUtils.logf( "doInBackground: getCounts done" );
while ( null != m_counts && !isCancelled() ) { // while to break
figureMinMax();
DbgUtils.logf( "doInBackground: figureMinMax done" );
m_minShown = m_intent.getIntExtra( DICT_MIN, m_minAvail );
m_maxShown = m_intent.getIntExtra( DICT_MAX, m_maxAvail );
if ( isCancelled() ) {
break;
}
DbgUtils.logf( "doInBackground: calling wordCount" );
XwJNI.dict_iter_setMinMax( closure, m_minShown, m_maxShown );
m_nWords = XwJNI.dict_iter_wordCount( closure );
DbgUtils.logf( "doInBackground: wordCount done" );
break;
}
if ( isCancelled() ) {
synchronized( DictBrowseActivity.this ) {
Assert.assertTrue( 0 == m_dictClosure );
XwJNI.dict_iter_backDestroy( closure );
}
}
DbgUtils.logf( "doInBackground done" );
return null;
}
// Run on UI thread
@Override
protected void onCancelled()
{
DbgUtils.logf( "onCancelled called" );
m_dictClosure = 0;
finish();
}
// Run on UI thread
@Override
protected void onPostExecute( Void result )
{
DbgUtils.logf( "onPostExecute called" );
m_progress.cancel();
finishCreate();
}
//////////////////////////////////////////////////
// DialogInterface.OnCancelListener
//////////////////////////////////////////////////
public void onCancel( DialogInterface dialog )
{
DbgUtils.logf( "DictLoader.onCancel()" );
cancel( true );
}
}
private class DictListAdapter extends BaseAdapter
implements SectionIndexer {
private String[] m_prefixes;
private int[] m_indices;
private int m_nWords;
public DictListAdapter()
{
super();
XwJNI.dict_iter_setMinMax( m_dictClosure, m_minShown, m_maxShown );
m_nWords = XwJNI.dict_iter_wordCount( m_dictClosure );
int format = m_minShown == m_maxShown ?
R.string.dict_browse_title1f : R.string.dict_browse_titlef;
setTitle( Utils.format( DictBrowseActivity.this, format,
@ -155,6 +238,7 @@ public class DictBrowseActivity extends XWListActivity
} else {
m_name = name;
m_lang = DictLangCache.getDictLangCode( this, name );
m_counts = intent.getIntArrayExtra( DICT_COUNTS );
String[] names = { name };
DictUtils.DictPairs pairs = DictUtils.openDicts( this, names );
@ -162,46 +246,17 @@ public class DictBrowseActivity extends XWListActivity
pairs.m_paths[0],
JNIUtilsImpl.get() );
m_counts = intent.getIntArrayExtra( DICT_COUNTS );
if ( null == m_counts ) {
m_counts = XwJNI.dict_iter_getCounts( m_dictClosure );
}
if ( null == m_counts ) {
// empty dict? Just close down for now. Later if
// this is extended to include tile info -- it should
// be -- then use an empty list elem and disable
// search/minmax stuff.
String msg = Utils.format( this, R.string.alert_empty_dictf,
name );
showOKOnlyDialogThen( msg, FINISH_ACTION );
} else {
figureMinMax();
setContentView( R.layout.dict_browser );
Button button = (Button)findViewById( R.id.search_button );
button.setOnClickListener( new View.OnClickListener() {
public void onClick( View view )
{
findButtonClicked();
}
} );
m_minShown = intent.getIntExtra( DICT_MIN, m_minAvail );
m_maxShown = intent.getIntExtra( DICT_MAX, m_maxAvail );
setUpSpinners();
setListAdapter( new DictListAdapter() );
getListView().setFastScrollEnabled( true );
}
m_loader = new DictLoader( intent );
DbgUtils.logf( "calling DictLoader.execute()" );
m_loader.execute();
}
DbgUtils.logf( "onCreate() done" );
}
@Override
protected void onDestroy()
{
XwJNI.dict_iter_destroy( m_dictClosure );
m_dictClosure = 0;
destroyDict();
super.onDestroy();
}
@ -210,7 +265,7 @@ public class DictBrowseActivity extends XWListActivity
@Override
public void finalize()
{
XwJNI.dict_iter_destroy( m_dictClosure );
destroyDict();
try {
super.finalize();
} catch ( java.lang.Throwable err ){
@ -342,6 +397,45 @@ public class DictBrowseActivity extends XWListActivity
m_maxSpinner.setOnItemSelectedListener( this );
}
private void finishCreate()
{
if ( null == m_counts ) {
// empty dict? Just close down for now. Later if
// this is extended to include tile info -- it should
// be -- then use an empty list elem and disable
// search/minmax stuff.
String msg = Utils.format( this, R.string.alert_empty_dictf,
m_name );
showOKOnlyDialogThen( msg, FINISH_ACTION );
} else {
// figureMinMax();
setContentView( R.layout.dict_browser );
Button button = (Button)findViewById( R.id.search_button );
button.setOnClickListener( new View.OnClickListener() {
public void onClick( View view )
{
findButtonClicked();
}
} );
setUpSpinners();
setListAdapter( new DictListAdapter() );
getListView().setFastScrollEnabled( true );
}
}
private void destroyDict()
{
synchronized( this ) {
if ( 0 != m_dictClosure ) {
XwJNI.dict_iter_destroy( m_dictClosure );
m_dictClosure = 0;
}
}
}
public static void launch( Context caller, String name )
{