机器人 - 进度延迟加载时，按一下​​按钮 [英] android - Progressbar Late Loading when button click

查看：114
本文介绍了机器人 - 进度延迟加载时，按一下​​按钮的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

在我的应用程序，当我点击按钮，进度条会迟后开始。我想很快开始启动。请任何人可以帮助我。 bshowgifts听者的onCreate（）。

  bShowGifts.setOnClickListener（新OnClickListener（）
{

@覆盖
        公共无效的onClick（视图v）
        {
            // vsChange
            progressDlg = ProgressDialog.show（Ehome.this，，，真）;
            progressDlg.setContentView（R.layout.custom_dialog）;
            //性别和年龄，必须选择
            如果（ElGiftoAppData.getAppData（）。arSelectedGender.size（）== 0）
            {
                progressDlg.dismiss（）;
                字符串strMsg =请选择性别;
                DisplaySelectionMessage（strMsg）;
                返回;
            }

            如果（ElGiftoAppData.getAppData（）。arSelectedAge.size（）== 0）
            {
                progressDlg.dismiss（）;
                字符串strMsg =请选择一个时代;
                DisplaySelectionMessage（strMsg）;
                返回;
            }

            如果（nMatchingGifts == 0）
            {
                progressDlg.dismiss（）;
                tvCount =（TextView中）findViewById（R.id.textMatchinGifts）;
                字符串strContent =＃匹配礼品：0;
                tvCount.setText（strContent）;
                字符串strMsg =没有找到礼物请更改搜索条件！
                DisplaySelectionMessage（strMsg）;
                返回;
            }

            尝试
            {
                //线程获取的负面属性值
                螺纹tDisplayCategories =新的Thread（）
                {
                    公共无效的run（）
                    {


                        的System.out.println（Showgifts：主题：运行）;
                        handlerDisplayGifts.post（call_ShowGiftsCategoryPage）;
                    }
                };
                tDisplayCategories.start（）;
            }
            赶上（例外EXP）
            {
                progressDlg.dismiss（）;
            }
            返回;
            }
    }）;

    公共无效DisplaySelectionMessage（字符串strMsg）
{

            //显示警告对话框
    AlertDialog alertDialog =新AlertDialog.Builder（Ehome.this）.create（）;
    alertDialog.setTitle（Elgifto警报）;
    alertDialog.setMessage（strMsg）;
    alertDialog.setButton（OK，新DialogInterface.OnClickListener（）
    {
        公共无效的onClick（DialogInterface对话框，INT ID）
        {
            dialog.cancel（）;
        }
    }）;

    alertDialog.show（）;
    返回;
}

更新code 

  bShowGifts.setOnClickListener（新OnClickListener（）

{
        @覆盖
            公共无效的onClick（视图v）
        {
          新showgiftsbtn（）执行（）。
            }
}）;

公共类showgiftsbtn扩展的AsyncTask＆LT;虚空，虚空，虚空＆GT;

{

私人最终ProgressDialog对话框=新ProgressDialog（Ehome.this）;

        在preExecute保护无效（）
        {
            this.dialog.setMessage（请稍候...）;
            this.dialog.show（）;



        //把你的code $它与processDialog p $ PLOAD
        如果（ElGiftoAppData.getAppData（）。arSelectedGender.size（）== 0）
        {
            dialog.dismiss（）;
            字符串strMsg =请选择性别;
            DisplaySelectionMessage（strMsg）;
            返回;
        }

        如果（ElGiftoAppData.getAppData（）。arSelectedAge.size（）== 0）
        {
            dialog.dismiss（）;
            字符串strMsg =请选择一个时代;
            DisplaySelectionMessage（strMsg）;
            返回;
        }

        如果（nMatchingGifts == 0）
        {
            dialog.dismiss（）;
            tvCount =（TextView中）findViewById（R.id.textMatchinGifts）;
            字符串strContent =＃匹配礼品：0;
            tvCount.setText（strContent）;
            字符串strMsg =没有找到礼物请更改搜索条件！
            DisplaySelectionMessage（strMsg）;
            返回;
        }

        尝试
        {
            //线程获取的负面属性值
            螺纹tDisplayCategories =新的Thread（）
            {
                公共无效的run（）
                {
                    的System.out.println（Showgifts：主题：运行）;
                    handlerDisplayGifts.post（call_ShowGiftsCategoryPage）;
                    dialog.dismiss（）;
                }
            };
            tDisplayCategories.start（）;
        }
        赶上（例外EXP）
        {
            dialog.dismiss（）;
        }
    }

    @覆盖
    保护无效doInBackground（空...为arg0）
    {
        //把你这里code
        返回null;
    }
    保护无效onPostExecute（最终虚空未使用）
    {

    }
}

解决方案

试试这个:: AsyncTask的能够正确且易于使用的用户界面线程。该类允许无需操作线程和/或处理程序进行后台操作并发布在UI线程上的结果。

这是异步任务是由在后台线程运行的计算，其结果发表在UI线程上定义。异步任务由3泛型类型，名为PARAMS，进展和成效，以及4个步骤定义，呼吁preExecute，doInBackground，onProgressUpdate和onPostExecute 

 私有类XYZ扩展的AsyncTask＆LT;虚空，虚空，虚空＆GT; {
                私人最终ProgressDialog对话框=新ProgressDialog（tranning.this）;

                在preExecute保护无效（）{
                    this.dialog.setMessage（请稍候...）;
                    this.dialog.show（）;

                    //把你的code $它与processDialog p $ PLOAD


            @覆盖
            保护无效doInBackground（虚空......为arg0）{

                //把你这里code
如果（ElGiftoAppData.getAppData（）。arSelectedGender.size（）== 0）
            {

                字符串strMsg =请选择性别;
                DisplaySelectionMessage（strMsg）;
                返回;
            }

            如果（ElGiftoAppData.getAppData（）。arSelectedAge.size（）== 0）
            {
                progressDlg.dismiss（）;
                字符串strMsg =请选择一个时代;
                DisplaySelectionMessage（strMsg）;
                返回;
            }

        如果（nMatchingGifts == 0）
        {

            tvCount =（TextView中）findViewById（R.id.textMatchinGifts）;
            字符串strContent =＃匹配礼品：0;
            tvCount.setText（strContent）;
            字符串strMsg =没有找到礼物请更改搜索条件！
            DisplaySelectionMessage（strMsg）;
            返回;
        }

        尝试
        {
            //线程获取的负面属性值
            螺纹tDisplayCategories =新的Thread（）
            {
                公共无效的run（）
                {


                    的System.out.println（Showgifts：主题：运行）;
                    handlerDisplayGifts.post（call_ShowGiftsCategoryPage）;
                }
            };
            tDisplayCategories.start（）;
        }
        赶上（例外EXP）
        {

        }
            }

                返回null;
            }
保护无效onPostExecute（最终虚空未使用）{
                如果（this.dialog.isShowing（））{
                  this.dialog.dismiss（）;

                }

            }
        }

和使用本在你的按钮点击事件:: 

 新的xyz（）执行（）。

In my app when i click button the progress bar will be started lately. I want to start start quickly. please can anybody help me. bshowgifts listener in onCreate().

bShowGifts.setOnClickListener(new OnClickListener()  
{                          

@Override        
        public void onClick(View v) 
        {               
            //vsChange
            progressDlg = ProgressDialog.show(Ehome.this, "", "", true);                            
            progressDlg.setContentView(R.layout.custom_dialog);                
            //Gender and age must be selected
            if(ElGiftoAppData.getAppData().arSelectedGender.size() == 0)  
            {
                progressDlg.dismiss();  
                String strMsg = "Please select a gender";
                DisplaySelectionMessage(strMsg);             
                return;
            }

            if(ElGiftoAppData.getAppData().arSelectedAge.size() == 0)
            {
                progressDlg.dismiss();
                String strMsg = "Please select an age";  
                DisplaySelectionMessage(strMsg);               
                return;
            }

            if(nMatchingGifts == 0)
            {
                progressDlg.dismiss(); 
                tvCount = (TextView) findViewById(R.id.textMatchinGifts);
                String strContent = "# of Matching Gifts: 0";
                tvCount.setText(strContent);                                                        
                String strMsg = "No gifts found! Please change the search criteria.";
                DisplaySelectionMessage(strMsg);               
                return; 
            }               

            try
            {                   
                //Thread for getting the negative attributes values
                Thread tDisplayCategories = new Thread() 
                {
                    public void run()
                    {  


                        System.out.println("Showgifts : Thread:run");
                        handlerDisplayGifts.post(call_ShowGiftsCategoryPage);
                    }                                                                                          
                };
                tDisplayCategories.start();
            }
            catch(Exception exp)
            {
                progressDlg.dismiss();
            }
            return;
            }         
    });

    public void DisplaySelectionMessage(String strMsg)
{

            //display alert dialog            
    AlertDialog alertDialog = new AlertDialog.Builder(Ehome.this).create();
    alertDialog.setTitle("Elgifto Alert");
    alertDialog.setMessage(strMsg);
    alertDialog.setButton("OK", new DialogInterface.OnClickListener() 
    {           
        public void onClick(DialogInterface dialog, int id) 
        {                
            dialog.cancel();
        }
    });

    alertDialog.show();
    return;
}

Updated code

bShowGifts.setOnClickListener(new OnClickListener()  

{                          
        @Override        
            public void onClick(View v) 
        {               
          new showgiftsbtn().execute();
            }         
});

public class showgiftsbtn extends AsyncTask<Void, Void, Void>

{

private final ProgressDialog dialog = new ProgressDialog(Ehome.this);

        protected void onPreExecute()
        {
            this.dialog.setMessage("Please Wait...");
            this.dialog.show();



        // put your code which preload with processDialog  
        if(ElGiftoAppData.getAppData().arSelectedGender.size() == 0)  
        {
            dialog.dismiss();  
            String strMsg = "Please select a gender";
            DisplaySelectionMessage(strMsg);             
            return;
        }

        if(ElGiftoAppData.getAppData().arSelectedAge.size() == 0)
        {
            dialog.dismiss();
            String strMsg = "Please select an age";  
            DisplaySelectionMessage(strMsg);               
            return;
        }

        if(nMatchingGifts == 0)
        {
            dialog.dismiss(); 
            tvCount = (TextView) findViewById(R.id.textMatchinGifts);
            String strContent = "# of Matching Gifts: 0";
            tvCount.setText(strContent);                                                        
            String strMsg = "No gifts found! Please change the search criteria.";
            DisplaySelectionMessage(strMsg);               
            return; 
        }               

        try
        {                   
            //Thread for getting the negative attributes values
            Thread tDisplayCategories = new Thread() 
            {
                public void run()
                {  
                    System.out.println("Showgifts : Thread:run");
                    handlerDisplayGifts.post(call_ShowGiftsCategoryPage);
                    dialog.dismiss();
                }                                                                                          
            };
            tDisplayCategories.start();
        }
        catch(Exception exp)
        {
            dialog.dismiss();
        }
    }

    @Override
    protected Void doInBackground(Void... arg0)
    {           
        // put you code here
        return null;
    }
    protected void onPostExecute(final Void unused)
    {           

    }
}

解决方案

try this:: AsyncTask enables proper and easy use of the UI thread. This class allows to perform background operations and publish results on the UI thread without having to manipulate threads and/or handlers.

An asynchronous task is defined by a computation that runs on a background thread and whose result is published on the UI thread. An asynchronous task is defined by 3 generic types, called Params, Progress and Result, and 4 steps, called onPreExecute, doInBackground, onProgressUpdate and onPostExecute

    private class xyz extends AsyncTask<Void, Void, Void> {
                private final ProgressDialog dialog = new ProgressDialog(tranning.this);

                protected void onPreExecute() {
                    this.dialog.setMessage("Please Wait...");
                    this.dialog.show();

                    // put your code which preload with processDialog  


            @Override
            protected Void doInBackground(Void... arg0) {

                // put you code here
if(ElGiftoAppData.getAppData().arSelectedGender.size() == 0)  
            {

                String strMsg = "Please select a gender";
                DisplaySelectionMessage(strMsg);             
                return;
            }

            if(ElGiftoAppData.getAppData().arSelectedAge.size() == 0)
            {
                progressDlg.dismiss();
                String strMsg = "Please select an age";  
                DisplaySelectionMessage(strMsg);               
                return;
            }

        if(nMatchingGifts == 0)
        {

            tvCount = (TextView) findViewById(R.id.textMatchinGifts);
            String strContent = "# of Matching Gifts: 0";
            tvCount.setText(strContent);                                                        
            String strMsg = "No gifts found! Please change the search criteria.";
            DisplaySelectionMessage(strMsg);               
            return; 
        }               

        try
        {                   
            //Thread for getting the negative attributes values
            Thread tDisplayCategories = new Thread() 
            {
                public void run()
                {  


                    System.out.println("Showgifts : Thread:run");
                    handlerDisplayGifts.post(call_ShowGiftsCategoryPage);
                }                                                                                          
            };
            tDisplayCategories.start();
        }
        catch(Exception exp)
        {

        }
            }

                return null;
            }
protected void onPostExecute(final Void unused) {
                if (this.dialog.isShowing()) {
                  this.dialog.dismiss();

                }

            }
        }

and use this in your button click event :: 

 new xyz().execute();

这篇关于机器人 - 进度延迟加载时，按一下​​按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

查看全文
相关文章
移动开发最新文章
热门教程
热门工具
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆