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我的應用程序在開始崩潰時，在protected void onCreate(Bundle savedInstanceState)方法的代碼的第一行中，行是super.onCreate(savedInstanceState);，當我調試它時指出我到一個文件（ActivityThread.java）充滿了錯誤。有很多導入語句不工作，很多未解決的符號。我從來沒有遇到這個文件的問題，我不知道我是否已經在manifest或build.graddle中改變了一些重要的東西，因爲我真的被困在android studio中，而且我正在關注google教程，但我也聽說它們已被棄用，所以我我也跟着this code。另外，我今天更新了android studio軟件，當我打開時我的項目不在那裏，所以我不得不再次導入它，我不知道它是否可能是問題的原因。我沒有發佈logcat，因爲它幾乎是無限的，但如果需要的話我會做一個編輯。任何幫助，將不勝感激。Android應用程序崩潰在開始Super.onCreate（savedInstanceState）
這是一個截圖（ActivityThread.java）
這是我的清單：
<?xml version="1.0" encoding="utf-8"?>
<uses-sdk android:minSdkVersion="10" android:targetSdkVersion="22"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission android:name="com.example.alfredo.webapp.permission.C2D_MESSAGE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.example.alfredo.webapp.permission.C2D_MESSAGE"/>
<application
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name">
<!-- Required for applications which use Google Play Services. -->
<!-- <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> -->
<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:configChanges="orientation|keyboardHidden|screenSize"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name=".MainActivity$GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<!--android:name=".MainActivity$GcmBroadcastReceiver" -->
<intent-filter>
<!--
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="com.example.alfredo.webapp" />
-->
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.google.android.gcm.demo.app" />
</intent-filter>
</receiver>
<!--
<service android:name=".MainActivity$GcmIntentService" />
-->
<service android:name=".MainActivity$GcmIntentService" />
</application>
的build.gradle：
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "com.example.alfredo.webapp"
minSdkVersion 10
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.0.0'
compile 'com.google.android.gms:play-services:7.0.0'
}
及主要活動：
package com.example.alfredo.webapp;
import android.app.Activity;
import android.app.IntentService;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v4.app.NotificationCompat;
import android.support.v4.content.WakefulBroadcastReceiver;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MenuItem;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.gcm.GoogleCloudMessaging;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.atomic.AtomicInteger;
public class MainActivity extends ActionBarActivity {
public static final String PROPERTY_REG_ID = "registration_id";
private static final String PROPERTY_APP_VERSION = "appVersion";
private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
String SENDER_ID = "46075xxxx056";
/**
* Tag used on log messages.
*/
static final String TAG = "GCMDemo";
private WebView myWebView = null;
TextView mDisplay;
GoogleCloudMessaging gcm;
AtomicInteger msgId = new AtomicInteger();
SharedPreferences prefs;
Context context;
String regid;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "hola coño");
setContentView(R.layout.activity_main);
//initialize variables
context = getApplicationContext();
gcm = GoogleCloudMessaging.getInstance(this);
prefs = getPreferences(0);
mDisplay = new TextView(getApplicationContext());
// web view
this.myWebView = (WebView) findViewById(R.id.webview);
myWebView.setWebViewClient(new WebViewClient());
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl("http://mongini.net/guiasdelsur");
//remove shared prefs
/*
SharedPreferences prefs = getGCMPreferences(context);
SharedPreferences.Editor edit = prefs.edit();
edit.clear();
edit.commit();
*/
/*
SharedPreferences clear_cache = getSharedPreferences("registration_id", MODE_PRIVATE);
SharedPreferences.Editor edit = clear_cache.edit();
edit.clear();
edit.commit();
*/
// Check device for Play Services APK. If check succeeds, proceed with
// GCM registration.
if (checkPlayServices()) {
gcm = GoogleCloudMessaging.getInstance(this);
regid = getRegistrationId(context);
if (regid.isEmpty()) {
registerInBackground();
Log.i(TAG,"ok");
}
} else {
Log.i(TAG, "No valid Google Play Services APK found.");
}
}
// You need to do the Play Services APK check here too.
@Override
protected void onResume() {
super.onResume();
checkPlayServices();
}
/**
* Check the device to make sure it has the Google Play Services APK. If
* it doesn't, display a dialog that allows users to download the APK from
* the Google Play Store or enable it in the device's system settings.
*/
private boolean checkPlayServices() {
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
GooglePlayServicesUtil.getErrorDialog(resultCode, this,
PLAY_SERVICES_RESOLUTION_REQUEST).show();
} else {
Log.d(TAG, "This device is not supported.");
finish();
}
return false;
}
return true;
}
/**
* Gets the current registration ID for application on GCM service.
* <p>
* If result is empty, the app needs to register.
*
* @return registration ID, or empty string if there is no existing
* registration ID.
*/
private String getRegistrationId(Context context) {
final SharedPreferences prefs = getGCMPreferences(context);
String registrationId = prefs.getString(PROPERTY_REG_ID, "");
if (registrationId.isEmpty()) {
Log.i(TAG, "Registration not found.");
return "";
}
// Check if app was updated; if so, it must clear the registration ID
// since the existing registration ID is not guaranteed to work with
// the new app version.
int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION, Integer.MIN_VALUE);
int currentVersion = getAppVersion(context);
if (registeredVersion != currentVersion) {
Log.i(TAG, "App version changed.");
return "";
}
return registrationId;
}
/**
* @return Application's {@code SharedPreferences}.
*/
private SharedPreferences getGCMPreferences(Context context) {
// This sample app persists the registration ID in shared preferences, but
// how you store the registration ID in your app is up to you.
return getSharedPreferences(MainActivity.class.getSimpleName(),
Context.MODE_PRIVATE);
}
/**
* @return Application's version code from the {@code PackageManager}.
*/
private static int getAppVersion(Context context) {
try {
PackageInfo packageInfo = context.getPackageManager()
.getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionCode;
} catch (PackageManager.NameNotFoundException e) {
// should never happen
throw new RuntimeException("Could not get package name: " + e);
}
}
/**
* Registers the application with GCM servers asynchronously.
* <p>
* Stores the registration ID and app versionCode in the application's
* shared preferences. com.example.alfredo.webapp.MainActivity
*/
private void registerInBackground() {
new AsyncTask<Void,Void,String>() {
@Override
protected String doInBackground(Void... params) {
String msg = "";
try {
regid = gcm.register(SENDER_ID);
msg = "Device registered, registration id=" + regid;
// You should send the registration ID to your server over HTTP,
// so it can use GCM/HTTP or CCS to send messages to your app.
sendRegistrationIdToBackend();
// Save the regid for future use - no need to register again.
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regid);
editor.commit();
} catch (IOException ex) {
msg = "Error :" + ex.getMessage();
}
return msg;
}
// Once registration is done, display the registration status
// string in the Activity's UI.
@Override
protected void onPostExecute(String msg) {
mDisplay.append(msg + "\n");
}
}.execute();
}
private String readStream(InputStream is) {
try {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
int i = is.read();
while(i != -1) {
bo.write(i);
i = is.read();
}
return bo.toString();
} catch (IOException e) {
return "";
}
}
/**
* Sends the registration ID to your server over HTTP, so it can use GCM/HTTP
* or CCS to send messages to your app. Not needed for this demo since the
* device sends upstream messages to a server that echoes back the message
* using the 'from' address in the message.
*/
private void sendRegistrationIdToBackend() {
// Your implementation here.
HttpURLConnection urlConnection = null;
try {
URL url = new URL("http://www.example.com/example.php?host=xxxx&dbname=xxx&user=mongini_webapp&pass=xxx&idPush="+regid);
urlConnection = (HttpURLConnection) url.openConnection();
/** Connecting to url */
urlConnection.connect();
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
readStream(in);
}catch(Exception e){
Log.d("Exception url ", e.toString());
}finally {
urlConnection.disconnect();
}
}
/**
* Stores the registration ID and app versionCode in the application's
* {@code SharedPreferences}.
*
* @param context application's context.
* @param regId registration ID
*/
//aqui peta
private void storeRegistrationId(Context context, String regId) {
final SharedPreferences prefs = getGCMPreferences(context);
int appVersion = getAppVersion(context);
Log.i(TAG, "Saving regId on app version " + appVersion);
SharedPreferences.Editor editor = prefs.edit();
editor.putString(PROPERTY_REG_ID, regId);
editor.putInt(PROPERTY_APP_VERSION, appVersion);
editor.commit();
}
public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// Explicitly specify that GcmIntentService will handle the intent.
ComponentName comp = new ComponentName(context.getPackageName(),
GcmIntentService.class.getName());
// Start the service, keeping the device awake while it is launching.
startWakefulService(context, (intent.setComponent(comp)));
setResultCode(Activity.RESULT_OK);
}
}
public class GcmIntentService extends IntentService {
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;
public GcmIntentService() {
super("GcmIntentService");
}
@Override
protected void onHandleIntent(Intent intent) {
Bundle extras = intent.getExtras();
GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
// The getMessageType() intent parameter must be the intent you received
// in your BroadcastReceiver.
String messageType = gcm.getMessageType(intent);
if (!extras.isEmpty()) { // has effect of unparcelling Bundle
/*
* Filter messages based on message type. Since it is likely that GCM
* will be extended in the future with new message types, just ignore
* any message types you're not interested in, or that you don't
* recognize.
*/
if (GoogleCloudMessaging.
MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
sendNotification("Send error: " + extras.toString());
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_DELETED.equals(messageType)) {
sendNotification("Deleted messages on server: " +
extras.toString());
// If it's a regular GCM message, do some work.
} else if (GoogleCloudMessaging.
MESSAGE_TYPE_MESSAGE.equals(messageType)) {
// This loop represents the service doing some work.
for (int i=0; i<5; i++) {
Log.i(TAG, "Working... " + (i+1)
+ "/5 @ " + SystemClock.elapsedRealtime());
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
}
Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
// Post notification of received message.
sendNotification("Received: " + extras.toString());
Log.i(TAG, "Received: " + extras.toString());
}
}
// Release the wake lock provided by the WakefulBroadcastReceiver.
GcmBroadcastReceiver.completeWakefulIntent(intent);
}
// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg) {
mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), 0);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
//.setSmallIcon(R.drawable.ic_stat_gcm)
.setContentTitle("GCM Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}
}
//back device button
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && this.myWebView.canGoBack()) {
this.myWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
編輯添加的logcat（加一個很小的部分，因爲它幾乎是無限的）：
05-04 08:01:33.850 23385-23454/? E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.ff.a
05-04 08:01:33.880 23385-23454/? E/dalvikvm﹕ Could not find class 'android.app.Notification$Builder', referenced from method com.google.android.gms.common.ff.b
05-04 08:01:36.010 10233-23463/? E/TalkProvider﹕ replaceContactWithContactId: contactId==0!!! [email protected], acct=1
05-04 08:01:36.010 10233-23463/? E/TalkProvider﹕ insert presence failed for account=1 [email protected] client_type=2 status= cap=0 priority=0 mode=3
05-04 08:01:36.090 10233-23463/? E/TalkProvider﹕ replaceContactWithContactId: contactId==0!!! [email protected], acct=1
05-04 08:01:36.090 10233-23463/? E/TalkProvider﹕ insert presence failed for account=1 [email protected] client_type=2 status= cap=0 priority=0 mode=3
05-04 08:01:37.469 23385-23466/? E/dalvikvm﹕ Could not find class 'android.os.UserManager', referenced from method com.google.android.gms.common.util.a.b
05-04 08:01:37.469 23385-23466/? E/dalvikvm﹕ Could not find class 'android.os.UserManager', referenced from method com.google.android.gms.common.util.a.c
05-04 08:01:37.469 23385-23466/? E/dalvikvm﹕ Could not find class 'android.os.UserManager', referenced from method com.google.android.gms.common.util.a.e
05-04 08:01:37.499 23223-23241/? E/﹕ statfs /mnt/secure/asec failed, errno: 13
05-04 08:01:40.499 23223-23233/? E/﹕ statfs /mnt/secure/asec failed, errno: 13
05-04 08:01:49.679 10207-10207/? E/Launcher﹕ setWindowOpaque()
05-04 08:01:49.729 10207-10207/? E/Launcher﹕ MTP-LAUNCHER: media scanning not yet finished.
05-04 08:01:57.119 10079-23504/? E/PlayerDriver﹕ Creating Non-Tunnel mode playback - uncompressed MIO
05-04 08:01:57.159 10079-23506/? E/PlayerDriver﹕ Creating Non-Tunnel mode playback - uncompressed MIO
05-04 08:01:57.179 10079-23508/? E/PlayerDriver﹕ Creating Non-Tunnel mode playback - uncompressed MIO
05-04 08:01:57.199 10079-23510/? E/PlayerDriver﹕ Creating Non-Tunnel mode playback - uncompressed MIO
05-04 08:01:57.219 10079-23512/? E/PlayerDriver﹕ Creating Non-Tunnel mode playback - uncompressed MIO
05-04 08:01:57.239 10079-23514/? E/PlayerDriver﹕ Creating Non-Tunnel mode playback - uncompressed MIO
05-04 08:02:04.759 23530-23530/? E/dalvikvm﹕ Could not find class 'android.database.sqlite.SQLiteCantOpenDatabaseException', referenced from method com.google.android.gms.plus.provider.PlusProvider.a
05-04 08:02:15.619 10233-10233/? E/AuthorizationBluetoothService﹕ Proximity feature is not enabled.
05-04 08:02:16.169 23602-23602/? E/dalvikvm﹕ Could not find class 'android.database.sqlite.SQLiteCantOpenDatabaseException', referenced from method com.google.android.gms.plus.provider.PlusProvider.a
05-04 08:02:17.359 10233-10233/? E/AuthorizationBluetoothService﹕ Proximity feature is not enabled.
05-04 08:02:25.849 23551-23551/? E/Finsky﹕ [1] InstallerTask.requireInternalStorageOrCancel: Cancel download of com.google.android.gms because insufficient free space
05-04 08:03:25.599 23641-23641/? E/dalvikvm﹕ Could not find class 'android.database.sqlite.SQLiteCantOpenDatabaseException', referenced from method com.google.android.gms.plus.provider.PlusProvider.a
05-04 08:03:26.139 10233-10233/? E/AuthorizationBluetoothService﹕ Proximity feature is not enabled.
05-04 08:03:26.759 23641-23656/? E/dalvikvm﹕ Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.ff.a
05-04 08:03:26.759 23641-23656/? E/dalvikvm﹕ Could not find class 'android.app.Notification$Builder', referenced from method com.google.android.gms.common.ff.b
05-04 08:03:27.959 23641-23656/? E/dalvikvm﹕ Could not find class 'android.security.KeyPairGeneratorSpec$Builder', referenced from method com.google.android.gms.auth.e.a.a
05-04 08:03:30.809 23641-23664/? E/dalvikvm﹕ Could not find class 'android.os.UserManager', referenced from method com.google.android.gms.common.util.a.b
你在這裏發佈一切，但logcat !.所以請發佈你的logcat（Android開發中最重要的東西）。 –
只需在這裏發佈一個較小的部分（在這裏你會看到一個異常） – Eenvincible
ActivityThread不應該是問題所在。只有日誌可以幫助我們調試。 –