我正在使用数组列表来存储有关屏幕上移动对象的数据。我怀疑这是因为我的渲染器和我的逻辑在不同的线程上运行,但有时当从列表中删除数据时,我得到一个 indexOutOfBoundsException。我已经采取了我能想到的所有步骤来避免这种情况,包括 try/catch,但有时仍然会发生异常。这是我的渲染器线程中似乎导致异常的部分。
public void drawMobs(GL10 gl) {
boolean playing = MyLaunchActivity.getPlaying();
if(playing == true){
try{
ArrayList<String> mobDat = Play.getMobDat();
while (currentLoadSpace < mobDat.size()){
if(!mobDat.isEmpty() || currentLoadSpace < mobDat.size()){
loadObject = mobDat.get(currentLoadSpace);
float loadCoordX = Float.parseFloat(mobDat.get(currentLoadSpace + 2));
float loadCoordY = Float.parseFloat(mobDat.get(currentLoadSpace + 3));
/*some rendering*/
currentLoadSpace+=4;
}
}
}catch( ArrayIndexOutOfBoundsException e){ Log.d(TAG, "caught");}
currentLoadSpace = 0;
}}
如您所见,我尝试了一些方法,但错误仍然存在。这是错误日志
01-02 14:02:42.650: E/AndroidRuntime(6947): FATAL EXCEPTION: GLThread 10
01-02 14:02:42.650: E/AndroidRuntime(6947): java.lang.IndexOutOfBoundsException: Invalid index 23, size is 20
01-02 14:02:42.650: E/AndroidRuntime(6947): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)
01-02 14:02:42.650: E/AndroidRuntime(6947): at java.util.ArrayList.get(ArrayList.java:308)
01-02 14:02:42.650: E/AndroidRuntime(6947): at basicmelon.games.agameofsorts.LoadLevel.drawMobs(LoadLevel.java:530)
01-02 14:02:42.650: E/AndroidRuntime(6947): at basicmelon.games.agameofsorts.MyGLSurfaceRenderer.onDrawFrame(MyGLSurfaceRenderer.java:82)
01-02 14:02:42.650: E/AndroidRuntime(6947): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1429)
01-02 14:02:42.650: E/AndroidRuntime(6947): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1184)