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Support sentence level spell check in sample code of the spell checker

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Bug: 6136149

Change-Id: I1519258dd3ce95ad01e50a75f802469737bef3c4
This commit is contained in:
satok
2012-03-29 17:21:58 +09:00
parent 51635d3744
commit cd68d40846
5 changed files with 152 additions and 11 deletions
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1
samples/SpellChecker/HelloSpellChecker/Android.mk
View File

@@ -5,6 +5,7 @@ LOCAL_MODULE_TAGS := samples
LOCAL_SRC_FILES := $(call all-subdir-java-files)
# TODO: Change sdk version to 16
LOCAL_SDK_VERSION := current
LOCAL_PACKAGE_NAME := HelloSpellChecker

90
samples/SpellChecker/HelloSpellChecker/src/com/example/android/hellospellchecker/HelloSpellCheckerActivity.java
View File

@@ -18,8 +18,10 @@ package com.example.android.hellospellchecker;
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.textservice.SentenceSuggestionsInfo;
import android.view.textservice.SpellCheckerSession;
import android.view.textservice.SuggestionsInfo;
import android.view.textservice.TextInfo;
@@ -30,8 +32,10 @@ import java.lang.StringBuilder;
public class HelloSpellCheckerActivity extends Activity implements SpellCheckerSessionListener {
private static final String TAG = HelloSpellCheckerActivity.class.getSimpleName();
private static final int NOT_A_LENGTH = -1;
private TextView mMainView;
private SpellCheckerSession mScs;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
@@ -40,18 +44,36 @@ public class HelloSpellCheckerActivity extends Activity implements SpellCheckerS
mMainView = (TextView)findViewById(R.id.main);
}
private boolean isSentenceSpellCheckSupported() {
if (mScs == null || Build.VERSION.SDK_INT < 16) {
return false;
}
// Note that isSentenceSpellCheckSupported works on JB or later.
return mScs.isSentenceSpellCheckSupported();
}
@Override
public void onResume() {
super.onResume();
final TextServicesManager tsm = (TextServicesManager) getSystemService(
Context.TEXT_SERVICES_MANAGER_SERVICE);
mScs = tsm.newSpellCheckerSession(null, null, this, true);
if (mScs != null) {
// Instantiate TextInfo for each query
// TextInfo can be passed a sequence number and a cookie number to identify the result
mScs.getSuggestions(new TextInfo("tgis"), 3);
mScs.getSuggestions(new TextInfo("hllo"), 3);
mScs.getSuggestions(new TextInfo("helloworld"), 3);
if (isSentenceSpellCheckSupported()) {
// Note that getSentenceSuggestions works on JB or later.
Log.d(TAG, "Sentence spellchecking supported.");
mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo("tgisis")}, 3);
mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo(
"I wold like to here form you")}, 3);
mScs.getSentenceSuggestions(new TextInfo[] {new TextInfo("hell othere")}, 3);
} else {
mScs.getSuggestions(new TextInfo("tgis"), 3);
mScs.getSuggestions(new TextInfo("hllo"), 3);
mScs.getSuggestions(new TextInfo("helloworld"), 3);
}
} else {
Log.e(TAG, "Couldn't obtain the spell checker service.");
}
@@ -65,17 +87,67 @@ public class HelloSpellCheckerActivity extends Activity implements SpellCheckerS
}
}
private void dumpSuggestionsInfoInternal(
final StringBuilder sb, final SuggestionsInfo si, final int length, final int offset) {
// Returned suggestions are contained in SuggestionsInfo
final int len = si.getSuggestionsCount();
sb.append('\n');
for (int j = 0; j < len; ++j) {
if (j != 0) {
sb.append(", ");
}
sb.append(si.getSuggestionAt(j));
}
sb.append(" (" + len + ")");
if (length != NOT_A_LENGTH) {
sb.append(" length = " + length + ", offset = " + offset);
}
}
/**
* Callback for {@link SpellCheckerSession#getSuggestions(TextInfo, int)}
* and {@link SpellCheckerSession#getSuggestions(TextInfo[], int, boolean)}
* @param results an array of {@link SuggestionsInfo}s.
* These results are suggestions for {@link TextInfo}s queried by
* {@link SpellCheckerSession#getSuggestions(TextInfo, int)} or
* {@link SpellCheckerSession#getSuggestions(TextInfo[], int, boolean)}
*/
@Override
public void onGetSuggestions(final SuggestionsInfo[] arg0) {
Log.d(TAG, "onGetSuggestions");
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < arg0.length; ++i) {
// Returned suggestions are contained in SuggestionsInfo
final int len = arg0[i].getSuggestionsCount();
sb.append('\n');
for (int j = 0; j < len; ++j) {
sb.append("," + arg0[i].getSuggestionAt(j));
dumpSuggestionsInfoInternal(sb, arg0[i], 0, NOT_A_LENGTH);
}
runOnUiThread(new Runnable() {
@Override
public void run() {
mMainView.append(sb.toString());
}
});
}
/**
* Callback for {@link SpellCheckerSession#getSentenceSuggestions(TextInfo[], int)}
* @param results an array of {@link SentenceSuggestionsInfo}s.
* These results are suggestions for {@link TextInfo}s
* queried by {@link SpellCheckerSession#getSentenceSuggestions(TextInfo[], int)}.
*/
@Override
public void onGetSentenceSuggestions(final SentenceSuggestionsInfo[] arg0) {
if (!isSentenceSpellCheckSupported()) {
Log.e(TAG, "Sentence spell check is not supported on this platform, "
+ "but accidentially called.");
return;
}
Log.d(TAG, "onGetSentenceSuggestions");
final StringBuilder sb = new StringBuilder();
for (int i = 0; i < arg0.length; ++i) {
final SentenceSuggestionsInfo ssi = arg0[i];
for (int j = 0; j < ssi.getSuggestionsCount(); ++j) {
dumpSuggestionsInfoInternal(
sb, ssi.getSuggestionsInfoAt(j), ssi.getOffsetAt(j), ssi.getLengthAt(j));
}
sb.append(" (" + len + ")");
}
runOnUiThread(new Runnable() {
@Override

3
samples/SpellChecker/SampleSpellCheckerService/Android.mk
View File

@@ -5,8 +5,9 @@ LOCAL_MODULE_TAGS := samples
LOCAL_SRC_FILES := $(call all-subdir-java-files)
# TODO: Change sdk version to 16
LOCAL_SDK_VERSION := current
LOCAL_PACKAGE_NAME := SampleSpellChecker
LOCAL_PACKAGE_NAME := SampleSpellCheckerService
include $(BUILD_PACKAGE)

3
samples/SpellChecker/SampleSpellCheckerService/res/xml/spellchecker.xml
View File

@@ -22,7 +22,8 @@
<spell-checker xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/spellchecker_name"
android:settingsActivity="com.example.android.samplespellcheckerservice.SpellCheckerSettingsActivity">
android:settingsActivity="com.example.android.samplespellcheckerservice.SpellCheckerSettingsActivity"
android:supportsSentenceSpellCheck="true">
<subtype
android:label="@string/subtype_generic"
android:subtypeLocale="en"

66
samples/SpellChecker/SampleSpellCheckerService/src/com/example/android/samplespellcheckerservice/SampleSpellCheckerService.java
View File

@@ -16,20 +16,31 @@
package com.example.android.samplespellcheckerservice;
import android.os.Build;
import android.service.textservice.SpellCheckerService;
import android.util.Log;
import android.view.textservice.SentenceSuggestionsInfo;
import android.view.textservice.SuggestionsInfo;
import android.view.textservice.TextInfo;
import java.util.ArrayList;
public class SampleSpellCheckerService extends SpellCheckerService {
private static final String TAG = SampleSpellCheckerService.class.getSimpleName();
private static final boolean DBG = true;
@Override
public Session createSession() {
return new AndroidSpellCheckerSession();
}
private static class AndroidSpellCheckerSession extends Session {
private boolean isSentenceSpellCheckApiSupported() {
// Note that the sentence level spell check APIs work on JB or later.
return Build.VERSION.SDK_INT >= 16;
}
private String mLocale;
@Override
public void onCreate() {
@@ -51,5 +62,60 @@ public class SampleSpellCheckerService extends SpellCheckerService {
return new SuggestionsInfo(flags,
new String[] {"aaa", "bbb", "Candidate for " + input, mLocale});
}
@Override
public SentenceSuggestionsInfo[] onGetSentenceSuggestionsMultiple(
TextInfo[] textInfos, int suggestionsLimit) {
if (!isSentenceSpellCheckApiSupported()) {
Log.e(TAG, "Sentence spell check is not supported on this platform, "
+ "but accidentially called.");
return null;
}
final ArrayList<SentenceSuggestionsInfo> retval =
new ArrayList<SentenceSuggestionsInfo>();
for (int i = 0; i < textInfos.length; ++i) {
final TextInfo ti = textInfos[i];
if (DBG) {
Log.d(TAG, "onGetSentenceSuggestionsMultiple: " + ti.getText());
}
final String input = ti.getText();
final int length = input.length();
final SuggestionsInfo[] sis;
final int[] lengths;
final int[] offsets;
if (input.equalsIgnoreCase("I wold like to here form you")) {
// Return sentence level suggestion for this fixed input
final int flags0 = SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO;
final int flags1 = SuggestionsInfo.RESULT_ATTR_HAS_RECOMMENDED_SUGGESTIONS
| SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO;
final int flags2 = flags1;
final SuggestionsInfo si0 = new SuggestionsInfo(
flags0, new String[] { "would" });
final SuggestionsInfo si1 = new SuggestionsInfo(
flags1, new String[] { "hear" });
final SuggestionsInfo si2 = new SuggestionsInfo(
flags2, new String[] { "from" });
sis = new SuggestionsInfo[] {si0, si1, si2};
offsets = new int[] { 2, 15, 20 };
lengths = new int[] { 4, 4, 4 };
} else {
// Just a fake logic:
// length <= 3 for short words that we assume are in the fake dictionary
// length > 20 for too long words that we assume can't be recognized
// (such as CJK words)
final int flags = length <= 3 ? SuggestionsInfo.RESULT_ATTR_IN_THE_DICTIONARY
: length <= 20 ? SuggestionsInfo.RESULT_ATTR_LOOKS_LIKE_TYPO : 0;
final SuggestionsInfo si = new SuggestionsInfo(flags,
new String[] {"aaa", "bbb", "Candidate for " + input, mLocale});
sis = new SuggestionsInfo[] { si };
offsets = new int[] { 0 };
lengths = new int[] { ti.getText().length() };
}
final SentenceSuggestionsInfo ssi =
new SentenceSuggestionsInfo(sis, lengths, offsets);
retval.add(ssi);
}
return retval.toArray(new SentenceSuggestionsInfo[0]);
}
}
}