I am doing an application-infinitely rotating 3D cylinder in
openGl.The speed varies with finger touch but wen i reduce the
speed,i
can see flickering happening in animation towards right and
left.Initialy I thought it is because of the linked list im updating
but found out there is no such problem with my linked list .I'm using
a thread here for a small delay after each 30 degree rotation
drawing.I cant do it widout the thread coz i need a sleep or a delay
after each 30 degree drawing,if i remove the thread and implement the
code in thread inside my onDraw frame, the curvature rotation itself
goes and it appears that images are just left shifting n right
shifting coz the sleep is not getting identified in onDraw frame.So i
cant implement my logic here widout using thread..so thread is a must
in my logic but i guess the flickering is due to my thread...Is the
flickering issue during animation because of the thread?please do
help
me with this flickering issue......dis is d thread part im using in
my
code.........
Runnable r1=new Runnable()
{
//Thread t1=new Thread(r1);
//t1.start();
public void run()
{
//t1.start();
while(true){
if(rotateFlagRight)
{
mRenderer.rotationFlag
= 1;
//
System.out.println("positive value of dx...."+dx);
for(int i=0;i<=30;i+
+)
{
mRenderer.mAngleXX=
i;
if ((dx>10)&&
(dx<50))
{
try {
Thread.sleep(100);
}
catch (InterruptedException e1) {}
}
else if
((dx>50)&& (dx<100))
{
try {
Thread.sleep(10);
}
catch (InterruptedException e1) {}
}
else if
((dx>100)&& (dx<150))
{
try {
Thread.sleep(8);
}
catch (InterruptedException e1) {}
}
else if
((dx>150)&& (dx<200))
{
try {
Thread.sleep(7);
}
catch (InterruptedException e1) {}
}
else if
((dx>200)&& (dx<250))
{
try {
Thread.sleep(5);
}
catch (InterruptedException e1) {}
}
else if
((dx>250)&& (dx<300))
{
try {
Thread.sleep(4);
}
catch (InterruptedException e1) {}
}
else if
((dx>300)&& (dx<350))
{
try {
Thread.sleep(3);
} catch
(InterruptedException e1) {}
}
else if
((dx>350))
{
try {
Thread.sleep(2);
}
catch (InterruptedException e1) {}
}
}
mRenderer.
listPhotos();
mRenderer.rotationFlag=0;
}
if(rotateFlagLeft)
{
//if(rotateFlagLeft)
mRenderer.rotationFlag
= 2;
//
System.out.println("Negative value of dx...."+dx);
for(int
i=0;i>=-30;i--)
{
mRenderer.mAngleXX= i;
if
((dx<-350))
{
try {
Thread.sleep(2);
}
catch (InterruptedException e1) {}
}
if ((dx<-300)
&& (dx>-350))
{
try {
Thread.sleep(3);
}
catch (InterruptedException e1) {}
}
if ((dx<-250)
&& (dx>-300))
{
try {
Thread.sleep(4);
}
catch (InterruptedException e1) {}
}
if ((dx<-200)
&& (dx>-250))
{
try {
Thread.sleep(5);
}
catch (InterruptedException e1) {}
}
if ((dx<-150)
&& (dx>-200))
{
try {
Thread.sleep(7);
}
catch (InterruptedException e1) {}
}
else if
((dx<-100)&&(dx>-150))
{
try {
Thread.sleep(8);
}
catch (InterruptedException e1) {}
}
else if
((dx<-50)&&(dx>-100))
{
try {
Thread.sleep(10);
}
catch (InterruptedException e1) {}
}
else if
((dx<-10)&&(dx>-50))
{
try {
Thread.sleep(100);
}
catch (InterruptedException e1) {}
}
}
//}
mRenderer.listPhotos();
mRenderer.rotationFlag=0;
//
continue;
}
if(!rotateFlagLeft){
if(!rotateFlagRight)
{
rotateFlagLeft=false;
rotateFlagRight=false;
}
}
}
}
};
please do help me to reduce the flickering.Thanks in advance
Tina
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