首先,我不会说英语,所以请原谅我的可怕语法。
我尝试使用GLSurfaceView
创建Android游戏。
我用日语阅读"Beginning of Android Game"(链接是示例代码)并模仿其代码,因此我的游戏几乎正常。
但我有一个问题。
当android关闭屏幕时,onPause将按预期调用活动。
但有时(并非总是)调用onResume,然后再次调用onPause()
,尽管屏幕仍为黑色。
在onResume
我致电GLSurfaceView()
。resume,因此也会调用onSurfaceCreated()
和onSurfaceChanged()
。
在此之后,游戏推出了ANR。
[预期流程]
onPause - (打开屏幕) - onResume - onSurfaceCreated - onSurfaceChanged
[有问题的流程]
onPause - onResume - onPause - onSurfaceCreated - onSurfaceChanged - (打开屏幕) - ANR
即使在有问题的情况下,也会正常调用GLSurfaceView.onDrawFrame,并且正在渲染游戏。 但它不接受任何敲击。是否存在无限循环?
我发现了类似的问题here和here。
但我认为没有配置改变。
在Android Manifest
中,
android:configChanges="keyboard|keyboardHidden|orientation|screenSize
已经宣布。
我无法将我的代码移到Application类中,因为我想在onSurfaceCreated
方法中做一些事情(例如重新加载一些纹理)。
所以我的问题是......
为什么调用onResume方法?
为什么会导致ANR?
我怎样才能避免这种ANR?
编辑:问题解决了。我很感激!
这是我的活动。
public abstract class GLGame extends Activity implements Game, Renderer {
enum GLGameState {
Initialized,
Running,
Paused,
Finished,
Idle
}
/////////////////////////////inter-ad
private static class AdHandler extends Handler {
private final WeakReference<GLGame> mActivity;
AdHandler(GLGame activity) {
mActivity = new WeakReference<GLGame>(activity);
}
@Override
public void handleMessage(Message msg) {
GLGame activity = mActivity.get();
switch(msg.what){
case 0:
if (activity != null) {
activity.showInterstitial();
}
break;
case 1:
if (activity != null) {
activity.prepareInterstitial();
}
break;
}
return;
}
};
Handler handler =new AdHandler(this);
/////////////////////////////inter-ad
//ad
static InterstitialAd interstitial;
static AdRequest adRequest;
AdView adView;
//////////////////////////////// //ad
GLSurfaceView glView;
GLGraphics glGraphics;
Audio audio;
Input input;
FileIO fileIO;
Screen screen;
GLGameState state = GLGameState.Initialized;
Object stateChanged = new Object();
long startTime = System.nanoTime();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
/////////////////////////////calculate and normalize the view size
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
float density = displaymetrics.densityDpi/160f;
int adpix = (int)( 50*density);
int navvarpix = (int)( 25*density);
int heightSubAd = displaymetrics.heightPixels -navvarpix-adpix;
int ratioWidth=10;
int ratioHeight=16;
boolean isWidthLong = displaymetrics.widthPixels/(float)heightSubAd > ratioWidth/(float)ratioHeight;
int width = isWidthLong ? heightSubAd * ratioWidth / ratioHeight : displaymetrics.widthPixels;
int height = isWidthLong ? heightSubAd : displaymetrics.widthPixels * ratioHeight/ratioWidth;
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(width, height);
lp.setMargins((displaymetrics.widthPixels-width)/2, 0, 0, (displaymetrics.widthPixels-width)/2);
///////////////////////////// //calc
glView = new GLSurfaceView(this);
glView.setLayoutParams(lp);
glView.setEGLConfigChooser(8 , 8, 8, 8, 16, 0);
glView.setRenderer(this);
adView = new AdView(this, AdSize.BANNER, "MY_NUMBER");
lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, adpix);
lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
lp.addRule(RelativeLayout.CENTER_HORIZONTAL);
adView.setLayoutParams(lp);
RelativeLayout layout = new RelativeLayout(this);
layout.setBackgroundColor(Color.BLACK);
layout.setId(0);
layout.addView(glView);
layout.addView(adView);
adView.loadAd(new AdRequest());
setContentView(layout);
/////////////////////////////////request inter-ad
interstitial = new InterstitialAd(this, "MY_NUMBER");
adRequest = new AdRequest();
adRequest.addTestDevice("MY_NUMBER");
adRequest.addTestDevice("MY_NUMBER");
interstitial.loadAd(adRequest);
/////////////////////////////////inter-ad
glGraphics = new GLGraphics(glView);
fileIO = new AndroidFileIO(getAssets());
audio = new AndroidAudio(this);
input = new AndroidInput(this, glView, 1, 1);
}
public void onResume() {
super.onResume();
glView.onResume();
}
@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
glGraphics.setGL(gl);
synchronized(stateChanged) {
if(state == GLGameState.Initialized)
screen = getStartScreen();
state = GLGameState.Running;
screen.resume();
startTime = System.nanoTime();
}
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
}
@Override
public void onDrawFrame(GL10 gl) {
GLGameState state = null;
synchronized(stateChanged) {
state = this.state;
}
if(state == GLGameState.Running) {
float deltaTime = (System.nanoTime()-startTime) / 1000000000.0f;
startTime = System.nanoTime();
screen.update(deltaTime);
screen.present(deltaTime);
}
if(state == GLGameState.Paused) {
screen.pause();
synchronized(stateChanged) {
this.state = GLGameState.Idle;
stateChanged.notifyAll();
}
}
if(state == GLGameState.Finished) {
screen.pause();
screen.dispose();
synchronized(stateChanged) {
this.state = GLGameState.Idle;
stateChanged.notifyAll();
}
}
}
@Override
public void onPause() {
synchronized(stateChanged) {
if(isFinishing())
state = GLGameState.Finished;
else
state = GLGameState.Paused;
while(true) {
try {
stateChanged.wait();
break;
} catch(InterruptedException e) {
}
}
}
glView.onPause();
super.onPause();
}
public GLGraphics getGLGraphics() {
return glGraphics;
}
@Override
public Input getInput() {
return input;
}
@Override
public FileIO getFileIO() {
return fileIO;
}
@Override
public Graphics getGraphics() {
throw new IllegalStateException("We are using OpenGL!");
}
@Override
public Audio getAudio() {
return audio;
}
@Override
public void setScreen(Screen screen) {
if (screen == null)
throw new IllegalArgumentException("Screen must not be null");
this.screen.pause();
this.screen.dispose();
screen.resume();
screen.update(0);
this.screen = screen;
}
@Override
public Screen getCurrentScreen() {
return screen;
}
@Override
public Handler getHandler(){
return handler;
}
private void showInterstitial(){
if(interstitial.isReady()){
interstitial.show();
}
}
private void prepareInterstitial(){
interstitial.loadAd(adRequest);
}
}
谢谢你的善意!