如何使用线程运行patternview两次来更改密码？

class ChangePasswordThread extends Thread {
    private PatternView patternView;
    private String newPassword;

    public ChangePasswordThread(PatternView patternView, String newPassword) {
        this.patternView = patternView;
        this.newPassword = newPassword;
    }

    @Override
    public void run() {
        // 在这里使用PatternView的方法来更改密码
        patternView.changePassword(newPassword);
    }
}

PatternView patternView = new PatternView(context);
String newPassword = getUserInputPassword(); // 获取用户输入的新密码

ChangePasswordThread thread1 = new ChangePasswordThread(patternView, newPassword);
ChangePasswordThread thread2 = new ChangePasswordThread(patternView, newPassword);

thread1.start();
thread2.start();