我正在使用AEM，当我上传PDF作为资产时，dc:title中的metadata属性有时会存储为String而其他String[]存储为String }}。
有这个标准吗？何时存储为String[]，何时存储为protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
currentFrame = System.currentTimeMillis();
dt = currentFrame - lastFrame;
dt = dt/1000;
lastFrame = currentFrame;
myFreakinRect.set(0,0, canvas.getWidth(), canvas.getHeight());
freakinRed.setColor(Color.RED);
freakinRed.setStyle(Paint.Style.FILL);
canvas.drawRect(myFreakinRect, freakinRed);
//
// o yuea
if(goingDown) {
//velocityY = Math.sqrt(100 + 2*gravity*(posY));
velocityY = gravity*(currentFrame - runTime);
} else {
velocityY = downV - gravity*(currentFrame - runTime);
}
if(posX > w - ballRadius*2) {
goingRight = false;
}
if(posX < 0) {
goingRight = true;
}
if(posY > h - ballRadius*2) {
//initY = initY - 0.25F;
//if(initY < 0) initY = 0;
Log.i("xxx", String.valueOf(initY));
runTime = currentFrame;
downV = velocityY;
goingDown = false;
}
if(velocityY <= 0) {
goingDown = true;
runTime = currentFrame;
}
if(goingDown) posY += velocityY*dt;
else posY -= velocityY*dt;
if(goingRight) posX += velocityX*dt;
else posX -= velocityX*dt;
canvas.drawText(String.valueOf(posX)+" "+String.valueOf(posY), 10, 10, new Paint());
canvas.drawBitmap(rBall, (float)posX, (float)posY, myFreakingFaintPaint);
invalidate();
}
？