/**
* Execute a task.
*
* @param runnable the task to execute
* @param id identifier used for task cancellation
* @param delay the time from now to delay execution, in milliseconds
* @param serial the serial queue (<code>null</code> or <code>""</code> for no serial execution)
* @throws IllegalArgumentException if <code>delay</code> is strictly positive and the current
* executor does not support scheduling (if {@link #setExecutor(Executor)} has been called
* with such an executor)
*/
public static void execute(final Runnable runnable, String id, int delay, String serial) {
execute(
new Task(id, delay, serial) {
@Override
public void execute() {
runnable.run();
}
});
}
/** 启动自动下载数据 */
public void autoDownLoadDataTask() {
BackgroundExecutor.execute(
new BackgroundExecutor.Task("", 500, "") {
@Override
public void execute() {
try {
getSDCardDataFromCamera();
} catch (Throwable e) {
Thread.getDefaultUncaughtExceptionHandler()
.uncaughtException(Thread.currentThread(), e);
}
}
});
}
@Override
public void loadNewList(final String url) {
BackgroundExecutor.execute(
new BackgroundExecutor.Task("", 0, "") {
@Override
public void execute() {
try {
DianYingFragment_.super.loadNewList(url);
} catch (Throwable e) {
Thread.getDefaultUncaughtExceptionHandler()
.uncaughtException(Thread.currentThread(), e);
}
}
});
}
private void postExecute() {
if (id == null && serial == null) {
/* nothing to do */
return;
}
CURRENT_SERIAL.set(null);
synchronized (BackgroundExecutor.class) {
/* execution complete */
TASKS.remove(this);
if (serial != null) {
Task next = take(serial);
if (next != null) {
if (next.remainingDelay != 0) {
/* the delay may not have elapsed yet */
next.remainingDelay =
Math.max(0, (int) (targetTimeMillis - System.currentTimeMillis()));
}
/* a task having the same serial was queued, execute it */
BackgroundExecutor.execute(next);
}
}
}
}
/**
* Execute a task after all tasks added with the same non-null <code>serial</code> (if any) have
* completed execution.
*
* <p>Equivalent to {@link #execute(Runnable, String, int, String) execute(runnable, id, 0,
* serial)}.
*
* @param runnable the task to execute
* @param id identifier used for task cancellation
* @param serial the serial queue to use (<code>null</code> or <code>""</code> for no serial
* execution)
*/
public static void execute(Runnable runnable, String id, String serial) {
execute(runnable, id, 0, serial);
}
