到目前为止我的申请简要说明：
用户会说一个单词将该单词保存到ArrayList结果中，然后它将与存储在wordBank.xml文件中的字符串数组中的单词进行比较。如果单词与wordbank中的单词匹配则会在textview中显示单词“match”，如果没有则会显示“no match”。
问题：问题是在我的onActivityResult函数中比较两个arraylist。这是一个运行时错误，当我尝试启动它时此屏幕崩溃，但是当我更改代码以使其无法比较时，它将运行而没有错误。
Main.Java
public class Main extends Activity {
private static final int VR_Request = 100;
TextView speechInput;
TextView matchOrNot;
ArrayList<String> wordBank;
ImageButton speechBtn;
boolean word = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reverse_pictionary);
speechInput = (TextView) findViewById(R.id.english_word);
matchOrNot = (TextView) findViewById(R.id.matchOrNot);
wordBank = new ArrayList<>(R.array.Words);
speechBtn = (ImageButton) findViewById(R.id.mic_pic_button);
}
public void onMic(View view) {
if (view.getId() == R.id.mic_pic_button) {
promptSpeechInput();
}
}
public void promptSpeechInput() {
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.ACTION_RECOGNIZE_SPEECH, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Say a Word from our word bank!");
try {
startActivityForResult(intent, VR_Request);
} catch (ActivityNotFoundException a) {
Toast.makeText(ReversePictionary.this, "Oopa, your device doesn't support speech recognition,", Toast.LENGTH_LONG).show();
}
}
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if(requestCode == VR_Request && resultCode == RESULT_OK) {
ArrayList<String> result = intent.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
if(wordBank.contains(result.get(0))) {
speechInput.setText(result.get(0).toUpperCase());
matchOrNot.setText("MATCH");
}else {
speechInput.setText(result.get(0));
matchOrNot.setText("NO MATCH");
}
}
super.onActivityResult(requestCode, resultCode, intent);
}
}
wordBank.xml
<resources>
<string-array name="Words">
<item>Blue</item>
<item>Yellow</item>
<item>Green</item>
<item>Purple</item>
<item>Brown</item>
<item>White</item>
<item>Black</item>
<item>Pink</item>
</string-array>
</resources>
OnActivityResult功能
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if(requestCode == VR_Request && resultCode == RESULT_OK) {
ArrayList<String> result = intent.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
if(wordBank.contains(result.get(0))) {
speechInput.setText(result.get(0).toUpperCase());
matchOrNot.setText("MATCH");
}else {
speechInput.setText(result.get(0));
matchOrNot.setText("NO MATCH");
}
}
super.onActivityResult(requestCode, resultCode, intent);
}
修改： 以下是错误消息：
08-08 01:30:31.458 2428-2428/com.example.speechtotext E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.speechtotext, PID: 2428
java.lang.OutOfMemoryError: java.lang.Object[] of length 2131427328 would overflow
at java.util.ArrayList.<init>(ArrayList.java:75)
at com.example.speechtotext.Main.onCreate(ReversePictionary.java:43)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
08-08 01:30:35.244 2428-2428/com.example.speechtotext I/Process: Sending signal. PID: 2428 SIG: 9
08-08 01:30:47.594 15145-15145/com.example.speechtotext W/System: ClassLoader referenced unknown path: /data/app/com.example.speechtotext-1/lib/x86
08-08 01:30:49.125 15145-15145/com.example.speechtotext W/System: ClassLoader referenced unknown path: /data/app/com.example.speechtotext-1/lib/x86
08-08 01:30:49.257 15145-15145/com.example.speechtotext W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-08 01:30:49.333 15145-15193/com.example.speechtotext D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
[ 08-08 01:30:49.337 15145:15145 D/ ]
HostConnection::get() New Host Connection established 0xac42d8c0, tid 15145
[ 08-08 01:30:49.373 15145:15193 D/ ]
HostConnection::get() New Host Connection established 0xae4929a0, tid 15193
08-08 01:30:49.381 15145-15193/com.example.speechtotext I/OpenGLRenderer: Initialized EGL, version 1.4
08-08 01:30:49.452 15145-15193/com.example.speechtotext W/EGL_emulation: eglSurfaceAttrib not implemented
08-08 01:30:49.452 15145-15193/com.example.speechtotext W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xaaad5f60, error=EGL_SUCCESS
有什么想法吗？先感谢您！ 旁注：最初我将错误消息保留了，因为它是OnActivityResult函数中的if else语句导致崩溃/错误。
答案 0 :(得分：1)
你的问题在这里
wordBank = new ArrayList<>(R.array.Words);
R.array.Words是资源本身的整数常量，而不是数组的内容。
在代码中解析XML数组的正确方法如下：
String[] wordBank = getResources().getStringArray(R.array.Words);
如果您想将String[]转换为ArrayList<String>，请参阅these examples and a connected question。