java - LogCat 中的 FatalException 错误

Question

我不知道为什么会出现这个错误，我花了大约两个小时试图找到源头，但我只是一直在原地打转。你能快速看一下，发现什么问题吗？

唤醒锁代码:-

wakeLock = powerManager.newWakeLock(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON, "GLGame");

这是 LogCat 输出:-

11-02 22:07:19.114: D/SensorGUI(517): SensorChannel(const Parcel& data): mSendFd = -1,          mReceiveFd = 55
11-02 22:07:19.114: D/SensorManager(517): [SensorManager] registerListener: delay = 20000
11-02 22:07:19.565: D/AndroidRuntime(517): Shutting down VM
11-02 22:07:19.565: W/dalvikvm(517): threadid=1: thread exiting with uncaught exception    (group=0x40abf228)
11-02 22:07:19.615: E/AndroidRuntime(517): FATAL EXCEPTION: main
11-02 22:07:19.615: E/AndroidRuntime(517): java.lang.RuntimeException: Unable to start   activity ComponentInfo{com.an.chess/com.an.chess.ChessGame}:    java.lang.IllegalArgumentException
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2194)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2229)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.ActivityThread.access$600(ActivityThread.java:139)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1261)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.os.Handler.dispatchMessage(Handler.java:99)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.os.Looper.loop(Looper.java:154)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.ActivityThread.main(ActivityThread.java:4945)
11-02 22:07:19.615: E/AndroidRuntime(517):  at java.lang.reflect.Method.invokeNative(Native Method)
11-02 22:07:19.615: E/AndroidRuntime(517):  at java.lang.reflect.Method.invoke(Method.java:511)
11-02 22:07:19.615: E/AndroidRuntime(517):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
11-02 22:07:19.615: E/AndroidRuntime(517):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
11-02 22:07:19.615: E/AndroidRuntime(517):  at dalvik.system.NativeStart.main(Native  Method)
11-02 22:07:19.615: E/AndroidRuntime(517): Caused by: java.lang.IllegalArgumentException
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.os.PowerManager$WakeLock.<init>(PowerManager.java:250)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.os.PowerManager.newWakeLock(PowerManager.java:446)
11-02 22:07:19.615: E/AndroidRuntime(517):  at com.an.framework.impl.AndroidGame.onCreate(AndroidGame.java:50)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.Activity.performCreate(Activity.java:4531)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1071)
11-02 22:07:19.615: E/AndroidRuntime(517):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2150)
11-02 22:07:19.615: E/AndroidRuntime(517):  ... 11 more

这是我的 list 文件:-

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.an.chess"
  android:versionCode="1"
  android:versionName="1.0">
<application android:icon="@drawable/ic_launcher" android:label="Chester" android:debuggable="true">
    <activity android:name=".ChessGame"
              android:label="Chess"
              android:configChanges="keyboard|keyboardHidden|orientation"
              android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
  </application>

<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>  
<uses-sdk android:minSdkVersion="3" android:targetSdkVersion="8"/>

预先感谢您一直以来的热情支持!

Answer 1

问题在于 WakeLock 实例的创建。来自 Android 源(API 14):

WakeLock(int flags, String tag)
{
    switch (flags & LOCK_MASK) {
    case PARTIAL_WAKE_LOCK:
    case SCREEN_DIM_WAKE_LOCK:
    case SCREEN_BRIGHT_WAKE_LOCK:
    case FULL_WAKE_LOCK:
    case PROXIMITY_SCREEN_OFF_WAKE_LOCK:
        break;
    default:
        throw new IllegalArgumentException();
    }

    mFlags = flags;
    mTag = tag;
    mToken = new Binder();
}

因此您传递给 android.os.PowerManager.newWakeLock 的标志无效。

更新:

您必须使用上述任何标志(例如PowerManager.FULL_WAKE_LOCK)。您正在使用与 WakeLock 无关的 LayoutParam 常量。