我正在尝试在 android studio 中为 editext 实现拼写检查。框架应验证用户输入的最后一个单词。问题是拼写检查框架没有返回建议并且没有显示任何错误。
这是我得到的输出示例：,,(2)
以下代码：
public class MainActivity extends AppCompatActivity implements
SpellCheckerSession.SpellCheckerSessionListener {
EditText editText;
SpellCheckerSession mScs;
TextView tv1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
editText = (EditText) findViewById(R.id.user_message);
tv1=findViewById(R.id.textView);
editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (!(editText.getText().toString().equalsIgnoreCase(""))) {
String[] text = editText.getText().toString().split(" ");
if (mScs != null) {
mScs.getSuggestions(new TextInfo(text[text.length-1]), 3); //last word
} else {
// Show the message to user
Toast.makeText(getApplicationContext(), "Please turn on the spell checker from setting", Toast.LENGTH_LONG).show();
ComponentName componentToLaunch = new ComponentName("com.android.settings",
"com.android.settings.Settings$SpellCheckersSettingsActivity");
Intent intent = new Intent();
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.setComponent(componentToLaunch);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
getApplicationContext().startActivity(intent);
} catch (ActivityNotFoundException e) {
// Error
}
}
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
public void onResume() {
super.onResume();
final TextServicesManager tsm = (TextServicesManager) getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE);
mScs = tsm.newSpellCheckerSession(null, null, this, true);
}
public void onPause() {
super.onPause();
if (mScs != null) {
mScs.close();
}
}
public void onGetSuggestions(final SuggestionsInfo[] arg0) {
final StringBuilder sb = new StringBuilder();
Log.d("LENGTH", String.valueOf(arg0.length));
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));
Log.d("suggestion", arg0[i].getSuggestionAt(j));
}
sb.append(" (" + len + ")");
}
runOnUiThread(new Runnable() {
public void run() {
tv1.append(sb.toString());
}
});
}
@Override
public void onGetSentenceSuggestions(SentenceSuggestionsInfo[] arg0) {
// TODO Auto-generated method stub
}
}
提前致谢。