Question

我正在尝试启动我的Cordova 3应用程序，但似乎我遇到了一些问题。

错误日志：

09-28 18:03:05.538: E/AndroidRuntime(25370): FATAL EXCEPTION: main
09-28 18:03:05.538: E/AndroidRuntime(25370): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.fourgamers.reader/com.fourgamers.reader.FourGamers}: java.lang.NullPointerException
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2100)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.ActivityThread.access$600(ActivityThread.java:140)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.os.Handler.dispatchMessage(Handler.java:99)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.os.Looper.loop(Looper.java:137)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.ActivityThread.main(ActivityThread.java:4898)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at java.lang.reflect.Method.invokeNative(Native Method)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at java.lang.reflect.Method.invoke(Method.java:511)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at dalvik.system.NativeStart.main(Native Method)
09-28 18:03:05.538: E/AndroidRuntime(25370): Caused by: java.lang.NullPointerException
09-28 18:03:05.538: E/AndroidRuntime(25370):    at org.apache.cordova.CordovaActivity.init(CordovaActivity.java:374)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at org.apache.cordova.CordovaActivity.init(CordovaActivity.java:338)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at org.apache.cordova.CordovaActivity.loadUrl(CordovaActivity.java:451)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at com.fourgamers.reader.FourGamers.onCreate(FourGamers.java:31)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.Activity.performCreate(Activity.java:5206)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1083)
09-28 18:03:05.538: E/AndroidRuntime(25370):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
09-28 18:03:05.538: E/AndroidRuntime(25370):    ... 11 more

FourGamers.java

/*
       Licensed to the Apache Software Foundation (ASF) under one
       or more contributor license agreements.  See the NOTICE file
       distributed with this work for additional information
       regarding copyright ownership.  The ASF licenses this file
       to you under the Apache License, Version 2.0 (the
       "License"); you may not use this file except in compliance
       with the License.  You may obtain a copy of the License at

         http://www.apache.org/licenses/LICENSE-2.0

       Unless required by applicable law or agreed to in writing,
       software distributed under the License is distributed on an
       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
       KIND, either express or implied.  See the License for the
       specific language governing permissions and limitations
       under the License.
 */

package com.fourgamers.reader;

import android.os.Bundle;
import org.apache.cordova.*;

public class FourGamers extends DroidGap
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.setIntegerProperty("splashscreen", R.drawable.splash);
        super.loadUrl(Config.getStartUrl(), 10000);

        super.onCreate(savedInstanceState);
        // Set by <content src="index.html" /> in config.xml
        super.loadUrl(Config.getStartUrl());
        //super.loadUrl("file:///android_asset/www/index.html")

    }
}

的AndroidManifest.xml

<?xml version='1.0' encoding='utf-8'?>
<manifest android:hardwareAccelerated="true" android:versionCode="1" android:versionName="0.0.1" android:windowSoftInputMode="adjustPan" package="com.fourgamers.reader" xmlns:android="http://schemas.android.com/apk/res/android">
    <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
    <uses-permission android:name="android.permission.INTERNET" />
    <application android:debuggable="true" android:hardwareAccelerated="true" android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale" android:label="@string/app_name" android:name="FourGamers" android:theme="@android:style/Theme.Black.NoTitleBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="18" />
</manifest>

非常感谢任何帮助。

谢谢。

Answer 1

查看CordobaActivity的源代码，我怀疑问题是您在调用loadUrl之前使用super.onCreate，这意味着活动的各个方面还没有联系起来。我建议你绕过这条线：

super.onCreate(savedInstanceState);
super.setIntegerProperty("splashscreen", R.drawable.splash);
super.loadUrl(Config.getStartUrl(), 10000);

（顺便说一下，为什么你要拨打super.loadUrl(Config.getStartUrl())两次，一次是超时，一次是没有......）

科尔多瓦3，无法开始活动

1 个答案: