/**
* This method is called by SDL using JNI.
*
* @return result of getSystemService(name) but executed on UI thread.
*/
public Object getSystemServiceFromUiThread(final String name) {
final Object lock = new Object();
final Object[] results = new Object[2]; // array for writable variables
synchronized (lock) {
runOnUiThread(
new Runnable() {
@Override
public void run() {
synchronized (lock) {
results[0] = getSystemService(name);
results[1] = Boolean.TRUE;
lock.notify();
}
}
});
if (results[1] == null) {
try {
lock.wait();
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
}
return results[0];
}
@Override
public void run() {
isInertia = true;
boolean isEnable = false;
while (isInertia) {
isScrollEnd = false;
if (xVelocity < 0) {
acceler = -200;
} else {
acceler = 200;
}
try {
int space = (xVelocity - acceler) / 20;
if (acceler < 0 && space >= 0) {
isInertia = false;
}
if (acceler > 0 && space <= 0) {
isInertia = false;
}
if (axesData.size() > 1 && (Math.abs(space) > 2)) {
int max = axesData.get(axesData.size() - 1).X;
int min = axesData.get(0).X;
int maxLimit = width - rightPadding - 20;
int minLimit = leftPadding + yTextWidth + 20;
if (min + space > minLimit) { // 滑动以后左边界判断
if (min < minLimit) {
space = minLimit - min;
isEnable = true;
} else {
space = 0;
}
} else {
isEnable = true;
}
if (max + space < maxLimit) { // 滑动后右边界判断
if (max > maxLimit) {
space = maxLimit - max;
isEnable = true;
} else {
space = 0;
}
} else {
isEnable = true;
}
if (isEnable) {
refreshChart(space);
}
}
xVelocity = xVelocity - acceler * 2;
sleep(timeInterval);
isScrollEnd = true;
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
private void downloadImageThread() {
Thread thread = new Thread(null, runInBackground, "Background");
thread.start();
try {
thread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
/**
* This method is called by SDL using JNI. Shows the messagebox from UI thread and block calling
* thread. buttonFlags, buttonIds and buttonTexts must have same length.
*
* @param buttonFlags array containing flags for every button.
* @param buttonIds array containing id for every button.
* @param buttonTexts array containing text for every button.
* @param colors null for default or array of length 5 containing colors.
* @return button id or -1.
*/
public int messageboxShowMessageBox(
final int flags,
final String title,
final String message,
final int[] buttonFlags,
final int[] buttonIds,
final String[] buttonTexts,
final int[] colors) {
messageboxSelection[0] = -1;
// sanity checks
if ((buttonFlags.length != buttonIds.length) && (buttonIds.length != buttonTexts.length)) {
return -1; // implementation broken
}
// collect arguments for Dialog
final Bundle args = new Bundle();
args.putInt("flags", flags);
args.putString("title", title);
args.putString("message", message);
args.putIntArray("buttonFlags", buttonFlags);
args.putIntArray("buttonIds", buttonIds);
args.putStringArray("buttonTexts", buttonTexts);
args.putIntArray("colors", colors);
// trigger Dialog creation on UI thread
runOnUiThread(
new Runnable() {
@Override
public void run() {
showDialog(dialogs++, args);
}
});
// block the calling thread
synchronized (messageboxSelection) {
try {
messageboxSelection.wait();
} catch (InterruptedException ex) {
ex.printStackTrace();
return -1;
}
}
// return selected value
return messageboxSelection[0];
}
/** 线程运行的方法,当线程start后执行 */
@Override
public void run() {
while (flag) {
mDraw(); // 调用自定义的绘图方法
mGameLogic(); // 调用自定义的逻辑方法
try {
Thread.sleep(50); // 让线程休息50毫秒
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
@Override
public void run() {
isInertia = true;
boolean isEnable = false;
if (velocity != 0) {
mDuration = getSplineFlingDuration(velocity);
// 不断循环直到惯性时间到达或者用户点击屏幕中断滑动
while (mDuration >= spendTime && isInertia) {
// 每时间间隔内惯性滑动的距离
int space =
(int)
(velocity
+ (2 * spendTime / timeInterval + 1)
* -velocity
/ mDuration
* timeInterval
/ 2)
* timeInterval
/ 1000;
try {
if (axesData.size() > 1) {
int max = axesData.get(axesData.size() - 1).X;
int min = axesData.get(0).X;
int maxLimit = width - rightPadding - 20;
int minLimit = leftPadding + yTextWidth + 20;
if (min + space > minLimit) { // 滑动以后左边界判断
if (min < minLimit) {
isEnable = true;
} else {
space = 0;
refreshChart(space);
return;
}
} else {
isEnable = true;
}
if (max + space < maxLimit) { // 滑动后右边界判断
if (max > maxLimit) {
isEnable = true;
} else {
space = 0;
refreshChart(space);
return;
}
} else {
isEnable = true;
}
if (isEnable) {
refreshChart(space);
}
} else {
return;
}
spendTime += timeInterval;
sleep(timeInterval);
isScrollEnd = true;
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}