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import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.forms.widgets.TableWrapLayout;
public class Notifier extends Thread {
Shell shell;
protected int moveStep = 2; //每次移动的pixel
protected int upPosition; //能移动到的最上面坐标
protected int downPosition; //当前popup的边框坐标
protected int leftPosition; //popup左边边框坐标
public Notifier() {
shell = new Shell(SWT.ON_TOP);
Text text = new Text(shell, SWT.MULTI | SWT.WRAP);
text.setBounds(10, 20, 180, 20);
text.setBackground(shell.getBackground());
text.setText("新通知XXX条");
//取屏莫大小
Rectangle area = Display.getDefault().getClientArea();
upPosition = area.height - 100;//计算出popup界面在屏幕显示的最高位置
downPosition = area.height + 100;//计算出popup界面的初始位置
leftPosition = area.width - 180;
shell.setSize(180, 40);
//初始化popup位置
shell.setLocation(leftPosition, downPosition);
shell.open();
}
public void run() {
Display display = shell.getDisplay();
while (true) {
try {
Thread.sleep(10);
//判断当前位置是否小于能出现的最高位置,小于的话就说明还可以向上移动。
if ((downPosition - moveStep) > upPosition) {
display.asyncExec(new Runnable() {
public void run() {
shell.setLocation(leftPosition, downPosition- moveStep);
downPosition -= moveStep;
}
});
//此时已经移动到了最高位置,显示10秒钟后,关闭窗口并退出。
} else {
Thread.sleep(10000);
display.asyncExec(new Runnable() {
public void run() {
shell.dispose();
}
});
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
while(true){
try {
//获取新通知。
int i=10;
if(i>0){
Notifier tongzhi=new Notifier();
tongzhi.start();
}
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Display.getDefault().syncExec(runnable)
或者Display.getDefault().asyncExec(runnable)
,不然就会报Invalid thread access错误