这个问题我找了两天了。我知道这是由一些愚蠢的错误引起的,但我找不到那个东西。如果有人帮助我,那就太好了。这是 fragment
private void draw() {
final SurfaceHolder holder = getSurfaceHolder();
Canvas c = holder.lockCanvas();;
try {
update(c);
updateText(c); //These are the effects like snowing or bouncing
} finally {
if (c != null)
holder.unlockCanvasAndPost(c); //This is line no. 151
}
mHandler.removeCallbacks(drawRunner);
if (mVisible) {
mHandler.postDelayed(drawRunner, 10);
}
}
我认为问题出在上述方法中。这是日志猫:
11-18 11:29:15.145: E/AndroidRuntime(2845): java.lang.IllegalArgumentException
11-18 11:29:15.145: E/AndroidRuntime(2845): at android.view.Surface.unlockCanvasAndPost(Native Method)
11-18 11:29:15.145: E/AndroidRuntime(2845): at com.android.internal.view.BaseSurfaceHolder.unlockCanvasAndPost(BaseSurfaceHolder.java:215)
11-18 11:29:15.145: E/AndroidRuntime(2845): at com.example.livewallpaper.SnowEffect$MyBounce.draw(SnowEffect.java:151)
11-18 11:29:15.145: E/AndroidRuntime(2845): at com.example.livewallpaper.SnowEffect$MyBounce.access$0(SnowEffect.java:141)
11-18 11:29:15.145: E/AndroidRuntime(2845): at com.example.livewallpaper.SnowEffect$MyBounce$1.run(SnowEffect.java:55)
最佳答案
问题解决了。
如果有人遇到同样的问题,这里是解决方案,这是一个非常愚蠢的错误。更新您的 list 文件。
<activity
android:name="com.yourpackage.Prefs"
android:exported="true" >
<intent-filter>
<category android:name="android.intent.category.PREFERENCE" />
</intent-filter>
</activity>
不要忘记添加 android:exported="true"
。我真的错过了!
关于java.lang.IllegalArgumentException :at android. view.Surface.unlockCanvasAndPost( native 方法),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26987728/