[COCOS2DX-LUA]0-006.cocos2dx中关于拖动屏幕物件，同时点击home键，返回后页面变黑的问题。
2024-08-31 13:21:42
基本信息介绍:
引擎框架: Quick-Cocos2dx-Community-3.6
测试机型: 魅族MX5
问题简介：
有拖动效果的物件，在拖动的工程中，手指不放，同时点击home键退到后台。
再返回应用，发现onTouchEnded里头有添加精灵的话，会变黑色。
问题排查:
首先排查生命周期。因为属于点击会被打断，会执行onTouchCancelled。所以真机调试发现先执行了onPause事件，再执行了onTouchCancelled。
这2个时间有一定的间隔时间，导致图片没加载进内存，但是缓存存在了。
问题思考：
1.能否调整生命周期
把onPause()打开，会有其他问题。
2.思考把onTouchCancel调用提前
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package org.cocos2dx.lib; import android.content.Context;
import android.opengl.GLSurfaceView;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.inputmethod.InputMethodManager; import com.babybus.app.App;
import com.babybus.utils.GameCallbackManager;
import com.babybus.utils.LogUtil; public class Cocos2dxGLSurfaceView extends GLSurfaceView {
// ===========================================================
// Constants
// =========================================================== private static final String TAG = Cocos2dxGLSurfaceView.class.getSimpleName(); private final static int HANDLER_OPEN_IME_KEYBOARD = 2;
private final static int HANDLER_CLOSE_IME_KEYBOARD = 3; // ===========================================================
// Fields
// =========================================================== // Static handler -> Potential leak!
private static Handler sHandler; private static Cocos2dxGLSurfaceView mCocos2dxGLSurfaceView;
private static Cocos2dxTextInputWraper sCocos2dxTextInputWraper; private Cocos2dxRenderer mCocos2dxRenderer;
private Cocos2dxEditText mCocos2dxEditText; // 记录当前点击事件的值
private int[] touchIds;
private float[] touchXs;
private float[] touchYs; // ===========================================================
// Constructors
// =========================================================== public Cocos2dxGLSurfaceView(final Context context) {
super(context); this.initView();
} public Cocos2dxGLSurfaceView(final Context context, final AttributeSet attrs) {
super(context, attrs); this.initView();
} protected void initView() {
this.setEGLContextClientVersion(2);
this.setFocusableInTouchMode(true); Cocos2dxGLSurfaceView.mCocos2dxGLSurfaceView = this;
Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper = new Cocos2dxTextInputWraper(this); Cocos2dxGLSurfaceView.sHandler = new Handler() {
@Override
public void handleMessage(final Message msg) {
switch (msg.what) {
case HANDLER_OPEN_IME_KEYBOARD:
if (null != Cocos2dxGLSurfaceView.this.mCocos2dxEditText && Cocos2dxGLSurfaceView.this.mCocos2dxEditText.requestFocus()) {
Cocos2dxGLSurfaceView.this.mCocos2dxEditText.removeTextChangedListener(Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper);
Cocos2dxGLSurfaceView.this.mCocos2dxEditText.setText("");
final String text = (String) msg.obj;
Cocos2dxGLSurfaceView.this.mCocos2dxEditText.append(text);
Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper.setOriginText(text);
Cocos2dxGLSurfaceView.this.mCocos2dxEditText.addTextChangedListener(Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper);
final InputMethodManager imm = (InputMethodManager) Cocos2dxGLSurfaceView.mCocos2dxGLSurfaceView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(Cocos2dxGLSurfaceView.this.mCocos2dxEditText, 0);
Log.d("GLSurfaceView", "showSoftInput");
}
break; case HANDLER_CLOSE_IME_KEYBOARD:
if (null != Cocos2dxGLSurfaceView.this.mCocos2dxEditText) {
Cocos2dxGLSurfaceView.this.mCocos2dxEditText.removeTextChangedListener(Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper);
final InputMethodManager imm = (InputMethodManager) Cocos2dxGLSurfaceView.mCocos2dxGLSurfaceView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(Cocos2dxGLSurfaceView.this.mCocos2dxEditText.getWindowToken(), 0);
Cocos2dxGLSurfaceView.this.requestFocus();
Log.d("GLSurfaceView", "HideSoftInput");
}
break;
}
}
};
} // ===========================================================
// Getter & Setter
// =========================================================== public static Cocos2dxGLSurfaceView getInstance() {
return mCocos2dxGLSurfaceView;
} public static void queueAccelerometer(final float x, final float y, final float z, final long timestamp) {
mCocos2dxGLSurfaceView.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxAccelerometer.onSensorChanged(x, y, z, timestamp);
}
});
} public void setCocos2dxRenderer(final Cocos2dxRenderer renderer) {
this.mCocos2dxRenderer = renderer;
this.setRenderer(this.mCocos2dxRenderer);
} private String getContentText() {
return this.mCocos2dxRenderer.getContentText();
} public Cocos2dxEditText getCocos2dxEditText() {
return this.mCocos2dxEditText;
} public void setCocos2dxEditText(final Cocos2dxEditText pCocos2dxEditText) {
this.mCocos2dxEditText = pCocos2dxEditText;
if (null != this.mCocos2dxEditText && null != Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper) {
this.mCocos2dxEditText.setOnEditorActionListener(Cocos2dxGLSurfaceView.sCocos2dxTextInputWraper);
this.mCocos2dxEditText.setCocos2dxGLSurfaceView(this);
this.requestFocus();
}
} // ===========================================================
// Methods for/from SuperClass/Interfaces
// =========================================================== @Override
public void onResume() {
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleOnResume();
}
}); this.setRenderMode(RENDERMODE_CONTINUOUSLY);
super.onResume();
} @Override
public void onPause() {
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleOnPause();
}
});
this.setRenderMode(RENDERMODE_WHEN_DIRTY);
if(touchIds != null){
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionCancel(touchIds, touchXs, touchYs);
}
});
}
// super.onPause();
} @Override
public boolean onTouchEvent(final MotionEvent pMotionEvent) { if (App.get().isLockGameTouch){
return false;
}
// these data are used in ACTION_MOVE and ACTION_CANCEL
final int pointerNumber = pMotionEvent.getPointerCount();
final int[] ids = new int[pointerNumber];
final float[] xs = new float[pointerNumber];
final float[] ys = new float[pointerNumber]; for (int i = 0; i < pointerNumber; i++) {
ids[i] = pMotionEvent.getPointerId(i);
xs[i] = pMotionEvent.getX(i);
ys[i] = pMotionEvent.getY(i);
} switch (pMotionEvent.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_POINTER_DOWN:
final int indexPointerDown = pMotionEvent.getAction() >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
final int idPointerDown = pMotionEvent.getPointerId(indexPointerDown);
final float xPointerDown = pMotionEvent.getX(indexPointerDown);
final float yPointerDown = pMotionEvent.getY(indexPointerDown); touchIds = ids;
touchXs = xs;
touchYs = ys; this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionDown(idPointerDown, xPointerDown, yPointerDown);
}
});
break; case MotionEvent.ACTION_DOWN:
// there are only one finger on the screen
final int idDown = pMotionEvent.getPointerId(0);
final float xDown = xs[0];
final float yDown = ys[0]; touchIds = ids;
touchXs = xs;
touchYs = ys; this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionDown(idDown, xDown, yDown);
}
});
break; case MotionEvent.ACTION_MOVE: touchIds = ids;
touchXs = xs;
touchYs = ys; this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionMove(ids, xs, ys);
}
});
break; case MotionEvent.ACTION_POINTER_UP:
final int indexPointUp = pMotionEvent.getAction() >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
final int idPointerUp = pMotionEvent.getPointerId(indexPointUp);
final float xPointerUp = pMotionEvent.getX(indexPointUp);
final float yPointerUp = pMotionEvent.getY(indexPointUp); touchIds = null;
touchXs = null;
touchYs = null;
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionUp(idPointerUp, xPointerUp, yPointerUp);
}
});
break; case MotionEvent.ACTION_UP:
// there are only one finger on the screen
final int idUp = pMotionEvent.getPointerId(0);
final float xUp = xs[0];
final float yUp = ys[0];
290 touchIds = null;
touchXs = null;
touchYs = null;
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionUp(idUp, xUp, yUp);
}
});
break; case MotionEvent.ACTION_CANCEL:
touchIds = null;
touchXs = null;
touchYs = null;
this.queueEvent(new Runnable() {
@Override
public void run() {
// Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleActionCancel(ids, xs, ys);
}
});
break;
} /*
if (BuildConfig.DEBUG) {
Cocos2dxGLSurfaceView.dumpMotionEvent(pMotionEvent);
}
*/
return true;
} /*
* This function is called before Cocos2dxRenderer.nativeInit(), so the
* width and height is correct.
*/
@Override
protected void onSizeChanged(final int pNewSurfaceWidth, final int pNewSurfaceHeight, final int pOldSurfaceWidth, final int pOldSurfaceHeight) {
if(!this.isInEditMode()) {
this.mCocos2dxRenderer.setScreenWidthAndHeight(pNewSurfaceWidth, pNewSurfaceHeight);
String screenSize = ""+pNewSurfaceWidth+"|"+pNewSurfaceHeight;
LogUtil.t("change===test2");
GameCallbackManager.gameCallback("FOLD_SCREEN_CHANGE", "NEW_SCREEN_SIZE", screenSize);
}
} @Override
public boolean onKeyDown(final int pKeyCode, final KeyEvent pKeyEvent) {
switch (pKeyCode) {
case KeyEvent.KEYCODE_BACK:
Cocos2dxVideoHelper.mVideoHandler.sendEmptyMessage(Cocos2dxVideoHelper.KeyEventBack);
case KeyEvent.KEYCODE_MENU:
case KeyEvent.KEYCODE_DPAD_LEFT:
case KeyEvent.KEYCODE_DPAD_RIGHT:
case KeyEvent.KEYCODE_DPAD_UP:
case KeyEvent.KEYCODE_DPAD_DOWN:
case KeyEvent.KEYCODE_ENTER:
case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
case KeyEvent.KEYCODE_DPAD_CENTER:
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleKeyDown(pKeyCode);
}
});
return true;
default:
return super.onKeyDown(pKeyCode, pKeyEvent);
}
} // ===========================================================
// Methods
// =========================================================== // ===========================================================
// Inner and Anonymous Classes
// =========================================================== public static void openIMEKeyboard() {
final Message msg = new Message();
msg.what = Cocos2dxGLSurfaceView.HANDLER_OPEN_IME_KEYBOARD;
msg.obj = Cocos2dxGLSurfaceView.mCocos2dxGLSurfaceView.getContentText();
Cocos2dxGLSurfaceView.sHandler.sendMessage(msg);
} public static void closeIMEKeyboard() {
final Message msg = new Message();
msg.what = Cocos2dxGLSurfaceView.HANDLER_CLOSE_IME_KEYBOARD;
Cocos2dxGLSurfaceView.sHandler.sendMessage(msg);
} public void insertText(final String pText) {
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleInsertText(pText);
}
});
} public void deleteBackward() {
this.queueEvent(new Runnable() {
@Override
public void run() {
Cocos2dxGLSurfaceView.this.mCocos2dxRenderer.handleDeleteBackward();
}
});
} private static void dumpMotionEvent(final MotionEvent event) {
final String names[] = { "DOWN", "UP", "MOVE", "CANCEL", "OUTSIDE", "POINTER_DOWN", "POINTER_UP", "7?", "8?", "9?" };
final StringBuilder sb = new StringBuilder();
final int action = event.getAction();
final int actionCode = action & MotionEvent.ACTION_MASK;
sb.append("event ACTION_").append(names[actionCode]);
if (actionCode == MotionEvent.ACTION_POINTER_DOWN || actionCode == MotionEvent.ACTION_POINTER_UP) {
sb.append("(pid ").append(action >> MotionEvent.ACTION_POINTER_INDEX_SHIFT);
sb.append(")");
}
sb.append("[");
for (int i = 0; i < event.getPointerCount(); i++) {
sb.append("#").append(i);
sb.append("(pid ").append(event.getPointerId(i));
sb.append(")=").append((int) event.getX(i));
sb.append(",").append((int) event.getY(i));
if (i + 1 < event.getPointerCount()) {
sb.append(";");
}
}
sb.append("]");
Log.d(Cocos2dxGLSurfaceView.TAG, sb.toString());
}
}
经过试验，下面一种完美解决问题。
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