如何延迟onClick（Android）[重复]

Question

对不起，我是 android java 的新手。请阅读下面代码中的注释标签“//”，当我点击我的按钮时，发送邮件和卸载同时进行，如何延迟？

@Override
    public void onClick(View v) {
        // execute send mail first
        sendEmail();
        // delayed 30 second then execute this uninstall.
        Uri packageUri = Uri.parse("package:com.naufalazkia.zitongart"); 

            Intent uninstallIntent =
              new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
        startActivity(uninstallIntent);
    }

Answer 1

使用 postDelayed()：

@Override public void onClick(View v) {
        // execute send mail first
        sendEmail();
        v.postDelayed(new Runnable() {
            @Override
            public void run() {
                Uri packageUri = Uri.parse("package:com.naufalazkia.zitongart"); 

                Intent uninstallIntent =
                    new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
                    startActivity(uninstallIntent);
            }
         }, 30000L);
    }

Answer 2

您可以使用处理程序将方法延迟所需的时间。方法如下：

Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
                //Your method to be executed after the delay.
            }
        }, 1000); //1000 is the time in milliseconds( 1 sec) to wait.

Answer 3

你可以这样做：

@Override
    public void onClick(View v) {
        // execute send mail first
        sendEmail();
        Thread.sleep(30000L);// delayed 30 second then execute this uninstall.
        Uri packageUri = Uri.parse("package:com.naufalazkia.zitongart"); 

            Intent uninstallIntent =
              new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageUri);
        startActivity(uninstallIntent);
    }

但是睡眠线程不是一个好的开发实现，相反你可以重构一些模块并等待一些回调或通知。