ProgressDialog进度条显示

private ProgressDialog pdialog;

private Handler proHandler;

private static int MAX_PROGRESS = 100;

private int progress;


showProgressDialog(ProgressDialog.STYLE_HORIZONTAL);
showProgressDialog(ProgressDialog.STYLE_SPINNER);


private void showProgressDialog(int style)
{
pdialog = new ProgressDialog(context);
pdialog.setIcon(R.drawable.icon);
pdialog.setTitle("数据处理中...");
pdialog.setMessage("请稍后...");
pdialog.setProgressStyle(style);
pdialog.setMax(MAX_PROGRESS);
pdialog.setButton("暂停", new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
proHandler.removeMessages(1);
}
});
pdialog.setButton("取消", new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
proHandler.removeMessages(1);
progress = 0;
pdialog.setProgress(0);
}
});
pdialog.show();

proHandler = new Handler()
{
public void handleMessage(Message msg)
{
super.handleMessage(msg);
if (progress >= MAX_PROGRESS)
{
progress = 0;
pdialog.dismiss();
}
else
{
progress++;
pdialog.incrementProgressBy(1);
proHandler.sendEmptyMessageDelayed(1, 50 + new Random().nextInt(500));
}
};
};
progress = (progress > 0) ? progress : 0;
pdialog.setProgress(progress);
proHandler.sendEmptyMessage(1);
}