在我的应用程序中，我识别出用户说“退出”或“关闭”，并且该应用程序应关闭。
有了这个代码
SpeechRecognizer sr;
Map<String, Integer> dictionary;
private static final int EXIT = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
populateDictionary();
SpeechRecognizer sr = SpeechRecognizer.createSpeechRecognizer(this);
sr.setRecognitionListener(this);
Intent voiceIntent = RecognizerIntent.getVoiceDetailsIntent(getApplicationContext());
sr.startListening(voiceIntent);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private void populateDictionary() {
dictionary = new HashMap<String, Integer>();
dictionary.put("exit", EXIT);
dictionary.put("close", EXIT);
}
@Override
public void onResults(Bundle results) {
ArrayList<String> strList = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
for (int i = 0; i < strList.size();i++ ) {
String sentence = strList.get(i).toLowerCase(Locale.getDefault());
Integer operation = dictionary.get(sentence);
if(operation != null){
switch(operation){
case EXIT:{
this.finish();
};break;
}
}
}
}
语音识别后出现此运行时错误。
11-12 15:38:05.351: E/Trace(14934): error opening trace file: No such file or directory (2)
11-12 15:38:05.511: D/libEGL(14934): loaded /system/lib/egl/libEGL_mali.so
11-12 15:38:05.521: D/libEGL(14934): loaded /system/lib/egl/libGLESv1_CM_mali.so
11-12 15:38:05.521: D/libEGL(14934): loaded /system/lib/egl/libGLESv2_mali.so
11-12 15:38:05.541: D/OpenGLRenderer(14934): Enabling debug mode 0
11-12 15:38:08.884: E/ActivityThread(14934): Activity com.example.voicetest01.MainActivity has leaked ServiceConnection android.speech.SpeechRecognizer$Connection@414f0e40 that was originally bound here
11-12 15:38:08.884: E/ActivityThread(14934): android.app.ServiceConnectionLeaked: Activity com.example.voicetest01.MainActivity has leaked ServiceConnection android.speech.SpeechRecognizer$Connection@414f0e40 that was originally bound here
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.LoadedApk$ServiceDispatcher.<init>(LoadedApk.java:965)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.LoadedApk.getServiceDispatcher(LoadedApk.java:859)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ContextImpl.bindService(ContextImpl.java:1214)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ContextImpl.bindService(ContextImpl.java:1206)
11-12 15:38:08.884: E/ActivityThread(14934): at android.content.ContextWrapper.bindService(ContextWrapper.java:394)
11-12 15:38:08.884: E/ActivityThread(14934): at android.speech.SpeechRecognizer.startListening(SpeechRecognizer.java:281)
11-12 15:38:08.884: E/ActivityThread(14934): at com.example.voicetest01.MainActivity.onCreate(MainActivity.java:32)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.Activity.performCreate(Activity.java:5008)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2027)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2088)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ActivityThread.access$600(ActivityThread.java:134)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1199)
11-12 15:38:08.884: E/ActivityThread(14934): at android.os.Handler.dispatchMessage(Handler.java:99)
11-12 15:38:08.884: E/ActivityThread(14934): at android.os.Looper.loop(Looper.java:137)
11-12 15:38:08.884: E/ActivityThread(14934): at android.app.ActivityThread.main(ActivityThread.java:4744)
11-12 15:38:08.884: E/ActivityThread(14934): at java.lang.reflect.Method.invokeNative(Native Method)
11-12 15:38:08.884: E/ActivityThread(14934): at java.lang.reflect.Method.invoke(Method.java:511)
11-12 15:38:08.884: E/ActivityThread(14934): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-12 15:38:08.884: E/ActivityThread(14934): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-12 15:38:08.884: E/ActivityThread(14934): at dalvik.system.NativeStart.main(Native Method)
如果我尝试销毁SpeechRecognizer，则会收到另一个运行时错误，因为
sr为null。@Override
public void onDestroy(){
sr.destroy();
super.onDestroy();
}
日志
11-12 15:29:24.383: E/Trace(13724): error opening trace file: No such file or directory (2)
11-12 15:29:24.633: D/libEGL(13724): loaded /system/lib/egl/libEGL_mali.so
11-12 15:29:24.633: D/libEGL(13724): loaded /system/lib/egl/libGLESv1_CM_mali.so
11-12 15:29:24.643: D/libEGL(13724): loaded /system/lib/egl/libGLESv2_mali.so
11-12 15:29:24.673: D/OpenGLRenderer(13724): Enabling debug mode 0
11-12 15:29:29.047: D/AndroidRuntime(13724): Shutting down VM
11-12 15:29:29.047: W/dalvikvm(13724): threadid=1: thread exiting with uncaught exception (group=0x40ccf318)
11-12 15:29:29.047: E/AndroidRuntime(13724): FATAL EXCEPTION: main
11-12 15:29:29.047: E/AndroidRuntime(13724): java.lang.NullPointerException
11-12 15:29:29.047: E/AndroidRuntime(13724): at com.example.voicetest01.MainActivity.onResults(MainActivity.java:77)
11-12 15:29:29.047: E/AndroidRuntime(13724): at android.speech.SpeechRecognizer$InternalListener$1.handleMessage(SpeechRecognizer.java:442)
11-12 15:29:29.047: E/AndroidRuntime(13724): at android.os.Handler.dispatchMessage(Handler.java:99)
11-12 15:29:29.047: E/AndroidRuntime(13724): at android.os.Looper.loop(Looper.java:137)
11-12 15:29:29.047: E/AndroidRuntime(13724): at android.app.ActivityThread.main(ActivityThread.java:4744)
11-12 15:29:29.047: E/AndroidRuntime(13724): at java.lang.reflect.Method.invokeNative(Native Method)
11-12 15:29:29.047: E/AndroidRuntime(13724): at java.lang.reflect.Method.invoke(Method.java:511)
11-12 15:29:29.047: E/AndroidRuntime(13724): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
11-12 15:29:29.047: E/AndroidRuntime(13724): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-12 15:29:29.047: E/AndroidRuntime(13724): at dalvik.system.NativeStart.main(Native Method)
11-12 15:29:31.500: I/Process(13724): Sending signal. PID: 13724 SIG: 9
我应该怎么办？
最佳答案
我认为问题可能在于:
sr.destroy();
如果sr为null，则得到NullPointerException，并且
super.onDestroy();
请勿致电。尝试下一个:
if(sr!=null)
{
sr.destroy();
}
或者:
try{
sr.destroy();
}
catch (Exception e)
{
Log.e(TAG,"Exception:"+e.toString());
}
关于android - MainActivity泄漏了最初绑定(bind)在此处的ServiceConnection android.speech.SpeechRecognizer$Connection@414ee400，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/19930999/