进度对话框不显示从单独的线程类，同时获得数据线程、对话框、进度、数据
2023-09-07 15:28:46
作者：做沵世界d王
我使用单独的线程来从URL的JSON对象。但问题是，我想显示进度对话框而获得的结果。我创建进度对话框，并呼吁展前和线程执行后解散。但进度对话框不显示。 这里是我打电话给我的线程的方式。
私人无效getRecordsByCount（最终字符串数据）{
尝试 {
// btnSelectall.setText（）;
INT颜色= Color.BLACK;
showProgressDialog（）;
tableLayoutGrid.removeAllViews（）;
最终的String []细节= data.split（_）;
SimpleDateFormat的DF =新的SimpleDateFormat（MM / DD / YYYY）;
字符串formattedDate = df.format（新日期（））;
字符串URL = ip地址+/ GrantLeavesList Companyid =？+ user_info.get（CompanyId）+＆放大器; divisionid =+细节[3] +＆放大器;用户id =+ user_info.get（用户id）+与＆amp; roleid =
+ user_info.get（RoleId）+＆安培; EMPLOYEEID =+ user_info.get（雇员）+＆安培; leavetypeid =+ staticDetails.get（详情[0]）+与＆amp; strStatus =+ staticDetails.get（详细[1]）
+＆放大器;类型=+ staticDetails.get（详情[2]）+＆放大器;日期=+ formattedDate;
JsonThread线程=新JsonThread（URL）;
thread.start（）;
// thread.setPriority（Thread.MAX_PRIORITY）;
的Thread.join（）;
JSONObject的OBJ = thread.returnResult（）;
btnGrantSubmit.setVisibility（View.GONE）;
如果（OBJ！= NULL）{
leaveforwardcounts = obj.getJSONArray（表1）;
滚动型scrollGrid =新的滚动型（本）;
数据行的TableRow =新的TableRow（本）;
datarow.setWeightSum（100）;
TableLayout表=新TableLayout（本）;
的for（int i = 0; I＆LT; leaveforwardcounts.length（）;我++）{
btnGrantSubmit.setVisibility（View.VISIBLE）;
JSONObject的纪录= leaveforwardcounts.getJSONObject（我）;
字符串applicantname = record.getString（申请人）;
串TODATE = record.getString（TODATE）;
串noofdays = record.getString（NUMBEROFDAYS）;
字符串LOP = record.getString（LOP）;
如果（LOP =空＆安培;！＆安培;！LOP.trim（）长度（）= 0）
{
颜色= Color.RED;
}
最终诠释ID =我;
最终按钮gridbutton =新的按钮（这一点）;
gridbutton.setText（状态）;
gridbutton.setTextColor（Color.BLACK）;
gridbutton.setBackgroundResource（R.drawable.grdbutton_30x30）;
gridbutton.setGravity（Gravity.CENTER）;
gridbutton.setPadding（2,0，2,0）;
gridbutton.setOnClickListener（新View.OnClickListener（）{
@覆盖
公共无效的onClick（视图v）{
changeRadioButtonState（gridbutton，ID，数据）;
}
}）;
gridbutton.setOnLongClickListener（新OnLongClickListener（）{
@覆盖
公共布尔onLongClick（视图v）{
setSelection（gridbutton）;
返回true;
}
}）;
TextView的tvApplicantName =新的TextView（本）;
TextView的tvToDate =新的TextView（本）;
TextView的tvNoOfDays =新的TextView（本）;
TextView的空=新的TextView（本）;
TextView的empty2 =新的TextView（本）;
如果（applicantname.trim（）长度（）＆GT; = 18）{
applicantname = applicantname.substring（0，18）;
}
tvApplicantName.setText（applicantname）;
tvApplicantName.setTypeface（font2）;
tvApplicantName.setWidth（70）;
tvApplicantName.setTextColor（颜色）;
tvApplicantName.setPadding（5，0，0，0）;
tvToDate.setText（TODATE）;
tvToDate.setTypeface（font2）;
tvNoOfDays.setText（noofdays）;
tvNoOfDays.setTypeface（font2）;
tvNoOfDays.setGravity（Gravity.RIGHT）;
按钮ivDetails =新的按钮（这一点）;
ivDetails.setText（）;
ivDetails.setPadding（2,0，2,0）;
ivDetails.setBackgroundResource（R.drawable.detailsbutton_30x30）;
ivDetails.setGravity（Gravity.CENTER）;
ivDetails.setOnClickListener（新View.OnClickListener（）{
@覆盖
公共无效的onClick（视图v）{
leaveDetails =新PopupWindow（showLeaveDetails（ID，leaveforwardcounts，数据），（INT）（宽* 0.8），身高/ 2，真正的）;
leaveDetails.showAtLocation（mainlayout，Gravity.CENTER，0，0）;
}
}）;
的TableRow行=新的TableRow（本）;
row.setPadding（0，3,0，3）;
row.setWeightSum（100）;
row.addView（tvApplicantName，新TableRow.LayoutParams（LayoutParams.MATCH_PARENT，LayoutParams.WRAP_CONTENT，55））;
row.addView（tvNoOfDays，新TableRow.LayoutParams（LayoutParams.MATCH_PARENT，LayoutParams.WRAP_CONTENT，5））;
row.addView（empty2，新TableRow.LayoutParams（LayoutParams.WRAP_CONTENT，LayoutParams.WRAP_CONTENT，20））;
row.addView（ivDetails，新TableRow.LayoutParams（LayoutParams.WRAP_CONTENT，LayoutParams.WRAP_CONTENT，5））;
row.addView（空，新TableRow.LayoutParams（LayoutParams.WRAP_CONTENT，LayoutParams.WRAP_CONTENT，5））;
row.addView（gridbutton，新TableRow.LayoutParams（LayoutParams.WRAP_CONTENT，LayoutParams.WRAP_CONTENT，5））;
table.addView（行）;
}
scrollGrid.addView（表）;
datarow.addView（scrollGrid，新TableRow.LayoutParams（LayoutParams.MATCH_PARENT，LayoutParams.WRAP_CONTENT，100））;
tableLayoutGrid.addView（数据行）;
dialog.dismiss（）;
}
}赶上（例外五）{
e.printStackTrace（）;
}
}
包com.MobJax.dashboard;
进口java.io.BufferedInputStream中;
进口java.io.IOException异常;
进口的java.io.InputStream;
进口java.net.MalformedURLException;
进口的java.net.URL;
进口org.apache.http.util.ByteArrayBuffer;
进口org.json.JSONObject;
公共类JsonThread继承Thread {
布尔运行= FALSE;
字符串URL;
JSONObject的jobj = NULL;
公共JsonThread（字符串URL）
{
this.url =网址;
}
@覆盖
公共无效的run（）{
INT K = 0;
URL URL1;
尝试 {
为url1 =新的URL（网址）;
输入的InputStream = url1.openStream（）;
的BufferedInputStream双=新的BufferedInputStream（输入）;
ByteArrayBuffer BAF =新ByteArrayBuffer（1000）;
而（（K = bis.read（））！= - 1）
{
baf.append（（字节）K）;
}
字符串结果=新的String（baf.toByteArray（））;
jobj =新的JSONObject的（结果）;
}
赶上（MalformedURLException的E1）{
// TODO自动生成的catch块
e1.printStackTrace（）;
}
赶上（IOException异常E）{
// TODO自动生成的catch块
e.printStackTrace（）;
}
赶上（例外五）
{
e.printStackTrace（）;
}
}
公众的JSONObject returnResult（）
{
返回jobj;
}
}
解决方案
您可以使用的AsyncTask ..by增加螺纹部分进入doInBackground method..show的进展preExecute对话框中，并关闭它在onPostExecute ..
例如：
公共类MyTask的扩展AsyncTask的＆LT;字符串，太虚，字符串＆GT; {
私人上下文的背景下;
私人ProgressDialog progressDialog;
公共MyTask的（上下文的背景下）{
this.context =背景;
}
@覆盖
在preExecute保护无效（）{
progressDialog = ProgressDialog.show（背景下，，载入中...，真正的）;
}
/ *
* @see android.os.AsyncTask＃doInBackground（PARAMS []）
* /
@覆盖
保护字符串doInBackground（字符串...为arg0）{
//你的json的螺纹部分
}
@覆盖
保护无效onPostExecute（最后弦乐结果）{
progressDialog.dismiss（）;
}
}
I am using separate thread to get the json object from the url. but the problem is I would like to show the progress dialog while getting the result. I have create a progress dialog and called show and dismiss before and after thread execution. but progress dialog is not displaying. here is the way I have called my thread.
private void getRecordsByCount(final String data) {
try {
// btnSelectall.setText(" ");
int color=Color.BLACK;
showProgressDialog();
tableLayoutGrid.removeAllViews();
final String[] details = data.split("_");
SimpleDateFormat df = new SimpleDateFormat("MM/dd/yyyy");
String formattedDate = df.format(new Date());
String url = ipaddress + "/GrantLeavesList?Companyid=" + user_info.get("CompanyId") + "&divisionid=" + details[3] + "&userid=" + user_info.get("userid") + "&roleid="
+ user_info.get("RoleId") + "&Employeeid=" + user_info.get("EmployeeId") + "&leavetypeid=" + staticDetails.get(details[0]) + "&strStatus=" + staticDetails.get(details[1])
+ "&type=" + staticDetails.get(details[2]) + "&Date=" + formattedDate;
JsonThread thread = new JsonThread(url);
thread.start();
// thread.setPriority(Thread.MAX_PRIORITY);
thread.join();
JSONObject obj = thread.returnResult();
btnGrantSubmit.setVisibility(View.GONE);
if (obj != null) {
leaveforwardcounts = obj.getJSONArray("Table1");
ScrollView scrollGrid = new ScrollView(this);
TableRow datarow = new TableRow(this);
datarow.setWeightSum(100);
TableLayout table = new TableLayout(this);
for (int i = 0; i < leaveforwardcounts.length(); i++) {
btnGrantSubmit.setVisibility(View.VISIBLE);
JSONObject record = leaveforwardcounts.getJSONObject(i);
String applicantname = record.getString("Applicant");
String toDate = record.getString("ToDate");
String noofdays = record.getString("NumberOfDays");
String LOP = record.getString("LOP");
if(LOP!=null && LOP.trim().length()!=0)
{
color=Color.RED;
}
final int id = i;
final Button gridbutton = new Button(this);
gridbutton.setText(status);
gridbutton.setTextColor(Color.BLACK);
gridbutton.setBackgroundResource(R.drawable.grdbutton_30x30);
gridbutton.setGravity(Gravity.CENTER);
gridbutton.setPadding(2, 0, 2, 0);
gridbutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
changeRadioButtonState(gridbutton, id, data);
}
});
gridbutton.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
setSelection(gridbutton);
return true;
}
});
TextView tvApplicantName = new TextView(this);
TextView tvToDate = new TextView(this);
TextView tvNoOfDays = new TextView(this);
TextView empty = new TextView(this);
TextView empty2 = new TextView(this);
if (applicantname.trim().length() >= 18) {
applicantname = applicantname.substring(0, 18);
}
tvApplicantName.setText(applicantname);
tvApplicantName.setTypeface(font2);
tvApplicantName.setWidth(70);
tvApplicantName.setTextColor(color);
tvApplicantName.setPadding(5, 0, 0, 0);
tvToDate.setText(toDate);
tvToDate.setTypeface(font2);
tvNoOfDays.setText(noofdays);
tvNoOfDays.setTypeface(font2);
tvNoOfDays.setGravity(Gravity.RIGHT);
Button ivDetails = new Button(this);
ivDetails.setText(" ");
ivDetails.setPadding(2, 0, 2, 0);
ivDetails.setBackgroundResource(R.drawable.detailsbutton_30x30);
ivDetails.setGravity(Gravity.CENTER);
ivDetails.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
leaveDetails = new PopupWindow(showLeaveDetails(id, leaveforwardcounts,data), (int) (width * 0.8), height / 2, true);
leaveDetails.showAtLocation(mainlayout, Gravity.CENTER, 0, 0);
}
});
TableRow row = new TableRow(this);
row.setPadding(0, 3, 0, 3);
row.setWeightSum(100);
row.addView(tvApplicantName, new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 55));
row.addView(tvNoOfDays, new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 5));
row.addView(empty2, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 20));
row.addView(ivDetails, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 5));
row.addView(empty, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 5));
row.addView(gridbutton, new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 5));
table.addView(row);
}
scrollGrid.addView(table);
datarow.addView(scrollGrid, new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, 100));
tableLayoutGrid.addView(datarow);
dialog.dismiss();
}
} catch (Exception e) {
e.printStackTrace();
}
}
package com.MobJax.dashboard;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import org.apache.http.util.ByteArrayBuffer;
import org.json.JSONObject;
public class JsonThread extends Thread{
boolean running=false;
String url;
JSONObject jobj=null;
public JsonThread(String url)
{
this.url=url;
}
@Override
public void run() {
int k=0;
URL url1;
try {
url1 = new URL(url);
InputStream input=url1.openStream();
BufferedInputStream bis=new BufferedInputStream(input);
ByteArrayBuffer baf=new ByteArrayBuffer(1000);
while((k=bis.read())!=-1)
{
baf.append((byte)k);
}
String results=new String(baf.toByteArray());
jobj=new JSONObject(results);
}
catch (MalformedURLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch(Exception e)
{
e.printStackTrace();
}
}
public JSONObject returnResult()
{
return jobj;
}
}
解决方案
You can do it using AsyncTask..by adding the thread part into the doInBackground method..show the progress dialog in onPreExecute and dismiss it in onPostExecute..
ex:
public class MyTask extends AsyncTask<String, Void, String> {
private Context context;
private ProgressDialog progressDialog;
public MyTask (Context context) {
this.context = context;
}
@Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(context, "", "Loading...", true);
}
/*
* @see android.os.AsyncTask#doInBackground(Params[])
*/
@Override
protected String doInBackground(String... arg0) {
//your json thread part
}
@Override
protected void onPostExecute(final String result) {
progressDialog.dismiss();
}
}
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