Swt/Jface进度条-白红宇

处理长时间的任务的时候常需要进度条显示，有几种实现方式

1，普通的进度条

import

java.lang.reflect.InvocationTargetException;

import

org.eclipse.core.runtime.IProgressMonitor;

import

org.eclipse.jface.dialogs.ProgressMonitorDialog;

import

org.eclipse.jface.operation.IRunnableWithProgress;

import

org.eclipse.swt.widgets.Display;

import

org.eclipse.swt.widgets.Shell;

public

class

TestProgress

{

static boolean stopflg = false;

/**

* Launch the application

* @param args

public static void main(String[] args) throws Exception{

final Display display = Display.getDefault();

final Shell shell = new Shell();

shell.setSize(500, 375);

shell.setText("SWT Application");

IRunnableWithProgress runnable = new IRunnableWithProgress(){

public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {

monitor.beginTask("generate", 30);

for(int i=0;i<100;i++){

if(monitor.isCanceled()){

return;

}

monitor.worked(1);

Thread.sleep(50);

}

monitor.done();

}

};

new ProgressMonitorDialog(shell).run(true, true, runnable);

shell.open();

shell.layout();

while (!shell.isDisposed()) {

if (!display.readAndDispatch())

display.sleep();

}

2,反复循环的进度条

import

java.lang.reflect.InvocationTargetException;

import

org.eclipse.core.runtime.IProgressMonitor;

import

org.eclipse.jface.dialogs.ProgressMonitorDialog;

import

org.eclipse.jface.operation.IRunnableWithProgress;

import

org.eclipse.swt.widgets.Display;

import

org.eclipse.swt.widgets.Shell;

public

class

TestProgress

{

static boolean stopflg = false;

/**

* Launch the application

* @param args

public static void main(String[] args) throws Exception{

final Display display = Display.getDefault();

final Shell shell = new Shell();

shell.setSize(500, 375);

shell.setText("SWT Application");

IRunnableWithProgress runnable = new IRunnableWithProgress(){

public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {

monitor.beginTask("generate", 30);

int i=0;

while(true){

if(stopflg){

break;

}

i++;

if(i==30){

i=0;

monitor.beginTask("generate", 30);

}

monitor.worked(1);

Thread.sleep(100);

}

monitor.done();

}

};

new ProgressMonitorDialog(shell).run(true, true, runnable);

shell.open();

shell.layout();

while (!shell.isDisposed()) {

if (!display.readAndDispatch())

display.sleep();

}

3,rcp中后台任务的进度条

使用Job建立后台任务，只需要设置job.setUser(true)进度条就出现了，和上边一样，进度条需要自己来控制进度。如果做一个cool的进度条，就看你如何让进度条显示出实际的任务进程。

本文转自kenty博客园博客，原文链接http://www.cnblogs.com/kentyshang/archive/2007/08/16/858303.html如需转载请自行联系原作者

kenty