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其中一位下載我的應用的人發現我通過谷歌播放崩潰。我發現它伴隨着車禍和車禍。但我不知道它有什麼問題。對我來說，它總是有效，所以我不知道問題在這裏。這是logcat的：java.lang.RuntimeException：無法啓動活動
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.laurenswuyts.find.it/com.laurenswuyts.find.it.MainKeyboard}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at java.util.Arrays$ArrayList.<init>(Arrays.java:38)
at java.util.Arrays.asList(Arrays.java:154)
at android.widget.ArrayAdapter.<init>(ArrayAdapter.java:128)
at com.laurenswuyts.find.it.MainKeyboard.onCreate(MainKeyboard.java:102)
at android.app.Activity.performCreate(Activity.java:5008)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
... 11 more
這是我的代碼：
package com.laurenswuyts.find.it;
import java.util.Locale;
import com.laurenswuyts.find.it.R;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.inputmethod.EditorInfo;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.ImageButton;
import android.widget.TextView;
public class MainKeyboard extends Activity {
public String[] taal;
String[] StringDA = Languages.StringDA;
String[] StringDE = Languages.StringDE;
String[] StringFR = Languages2.StringFR;
String[] StringNL = Languages.StringNL;
String[] StringEN = Languages.StringEN;
String[] StringPT = Languages2.StringPT;
String[] StringSV = Languages.StringSV;
String[] StringES = Languages2.StringES;
String[] StringNO = Languages2.StringNO;
public ImageButton Search;
public AutoCompleteTextView AutoCompleteTextView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.mainkeyboard);
Search = (ImageButton) findViewById(R.id.imageButtonSearch);
final AutoCompleteTextView AutoCompleteTextView = (AutoCompleteTextView)
findViewById(R.id.autoCompleteTextView1);
if (Locale.getDefault().getLanguage().equals("da")) {
taal = StringDA;
}
else{}
if (Locale.getDefault().getLanguage().equals("de")) {
taal = StringDE;
}
else{}
if (Locale.getDefault().getLanguage().equals("fr")) {
taal = StringFR;
}
else{}
if (Locale.getDefault().getLanguage().equals("nl")) {
taal = StringNL;
}
else{}
if (Locale.getDefault().getLanguage().equals("no")) {
taal = StringNO;
}
else{}
if (Locale.getDefault().getLanguage().equals("pt")) {
taal = StringPT;
}
else{}
if (Locale.getDefault().getLanguage().equals("es")) {
taal = StringES;
}
else{}
if (Locale.getDefault().getLanguage().equals("sv")) {
taal = StringSV;
}
else{}
if (Locale.getDefault().getLanguage().equals("en")) {
taal = StringEN;
}
else{
}
Search.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainKeyboard.this,MainActivity.class);
intent.putExtra("thetext",AutoCompleteTextView.getText().toString());
startActivity(intent);
}
});
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.suggest, taal);
AutoCompleteTextView acTextView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
acTextView.setThreshold(1);
acTextView.setAdapter(adapter);
acTextView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Intent intent = new Intent(MainKeyboard.this,MainActivity.class);
intent.putExtra("thetext",AutoCompleteTextView.getText().toString());
startActivity(intent);
}
});
AutoCompleteTextView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_SEARCH) {
Intent intent = new Intent(MainKeyboard.this,MainActivity.class);
intent.putExtra("thetext",AutoCompleteTextView.getText().toString());
startActivity(intent);
return true;
}
return false;
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.twitter: Uri uri = Uri.parse("http://twitter.com/finditwurens");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
break;
case R.id.facebook: Uri uri2 = Uri.parse("http://www.facebook.com/AppFindIt");
Intent intent2 = new Intent(Intent.ACTION_VIEW, uri2);
startActivity(intent2);
break;
case R.id.googleplus: Uri uri3 = Uri.parse("http://plus.google.com/105389501412708876212/posts");
Intent intent3 = new Intent(Intent.ACTION_VIEW, uri3);
startActivity(intent3);
break;
case R.id.addgoogle: Uri uri4 = Uri.parse("http://www.google.com/places/");
Intent intent4 = new Intent(Intent.ACTION_VIEW, uri4);
startActivity(intent4);
break;
}
return true;
}
}
什麼是上線102？ – Ahmad
你在第102行有一個NullpointerException – Frederic