progressdialog-如何在Android中显示进度对话框？

当我单击“登录”按钮时，我想显示ProgressDialog，这需要时间才能移动到另一个页面。 我怎样才能做到这一点？

16个解决方案

95 votes

ProgressDialog pd = new ProgressDialog(yourActivity.this);

pd.setMessage("loading");

pd.show();

这就是您所需要的。

Jave answered 2020-02-04T18:40:11Z

48 votes

您最好尝试使用AsyncTask

示例代码-

private class YourAsyncTask extends AsyncTask {

private ProgressDialog dialog;

public YourAsyncTask(MyMainActivity activity) {

dialog = new ProgressDialog(activity);

}

@Override

protected void onPreExecute() {

dialog.setMessage("Doing something, please wait.");

dialog.show();

}

@Override

protected Void doInBackground(Void... args) {

// do background work here

return null;

}

@Override

protected void onPostExecute(Void result) {

// do UI work here

if (dialog.isShowing()) {

dialog.dismiss();

}

}

}

在登录按钮活动中使用上面的代码。 并且，请执行ProgressDialog和AsyncTask中的操作

更新：

ProgressDialog与AsyncTask集成在一起，因为您说您的任务需要时间来处理。

更新：

自27 API起不推荐使用ProgressDialog类

Praveenkumar answered 2020-02-04T18:39:50Z

21 votes

要使用ProgressDialog，请使用以下代码

ProgressDialog progressdialog = new ProgressDialog(getApplicationContext());

progressdialog.setMessage("Please Wait....");

要启动ProgressDialog使用

progressdialog.show();

使用ProgressDialog，以便在完成工作之前不能取消ProgressDialog。

要停止ProgressDialog，请使用以下代码(工作完成后)：

progressdialog.dismiss();`

Abhishek Punia answered 2020-02-04T18:40:44Z

19 votes

关于“进度”对话框，您应该记住的一点是，您应该在单独的线程中运行它。 如果在UI线程中运行它，则不会显示对话框。

如果您不熟悉Android线程，那么您应该了解AsyncTask。 这可以帮助您实现轻松的线程。

样例代码

private class CheckTypesTask extends AsyncTask{

ProgressDialog asyncDialog = new ProgressDialog(IncidentFormActivity.this);

String typeStatus;

@Override

protected void onPreExecute() {

//set message of the dialog

asyncDialog.setMessage(getString(R.string.loadingtype));

//show dialog

asyncDialog.show();

super.onPreExecute();

}

@Override

protected Void doInBackground(Void... arg0) {

//don't touch dialog here it'll break the application

//do some lengthy stuff like calling login webservice

return null;

}

@Override

protected void onPostExecute(Void result) {

//hide the dialog

asyncDialog.dismiss();

super.onPostExecute(result);

}

}

祝好运。

Jay Mayu answered 2020-02-04T18:41:18Z

6 votes

在您的activity中进行简单编码，如下所示：

private ProgressDialog dialog = new ProgressDialog(YourActivity.this);

dialog.setMessage("please wait...");

dialog.show();

dialog.dismiss();

Chirag Patel answered 2020-02-04T18:41:38Z

3 votes

声明您的进度对话框：

ProgressDialog progressDialog;

要启动进度对话框：

progressDialog = ProgressDialog.show(this, "","Please Wait...", true);

要关闭进度对话框：

progressDialog.dismiss();

Md. Ilyas Hasan Mamun answered 2020-02-04T18:42:07Z

2 votes

这是使用对话框的好方法

private class YourAsyncTask extends AsyncTask {

ProgressDialog dialog = new ProgressDialog(IncidentFormActivity.this);

@Override

protected void onPreExecute() {

//set message of the dialog

dialog.setMessage("Loading...");

//show dialog

dialog.show();

super.onPreExecute();

}

protected Void doInBackground(Void... args) {

// do background work here

return null;

}

protected void onPostExecute(Void result) {

// do UI work here

if(dialog != null && dialog.isShowing()){

dialog.dismiss()

}

}

}

Aristo Michael answered 2020-02-04T18:42:27Z

2 votes

当您调用oncreate()时

new LoginAsyncTask ().execute();

这里如何在流程中使用..

ProgressDialog progressDialog;

private class LoginAsyncTask extends AsyncTask {

@Override

protected void onPreExecute() {

progressDialog= new ProgressDialog(MainActivity.this);

progressDialog.setMessage("Please wait...");

progressDialog.show();

super.onPreExecute();

}

protected Void doInBackground(Void... args) {

// Parsse response data

return null;

}

protected void onPostExecute(Void result) {

if (progressDialog.isShowing())

progressDialog.dismiss();

//move activity

super.onPostExecute(result);

}

}

Kush answered 2020-02-04T18:42:52Z

1 votes

ProgressDialog dialog =

ProgressDialog.show(yourActivity.this, "", "Please Wait...");

V.J. answered 2020-02-04T18:43:08Z

1 votes

ProgressDialog pd = new ProgressDialog(yourActivity.this);

pd.show();

m.v.n.kalyani answered 2020-02-04T18:43:23Z

1 votes

final ProgressDialog loadingDialog = ProgressDialog.show(context,

"Fetching BloodBank List","Please wait...",false,false); // for showing the

// dialog where context is the current context, next field is title followed by

// message to be shown to the user and in the end intermediate field

loadingDialog.dismiss();// for dismissing the dialog

欲了解更多信息Android-progressDialog.show()和ProgressDialog.show()有什么区别？

cammando answered 2020-02-04T18:43:43Z

1 votes

现在，ProgressDialog已在Android O中正式弃用。我使用来自[https://github.com/Q115/DelayedProgressDialog]的DelayedProgressDialog来完成工作。

用法：

DelayedProgressDialog progressDialog = new DelayedProgressDialog();

progressDialog.show(getSupportFragmentManager(), "tag");

NinjaCowgirl answered 2020-02-04T18:44:08Z

1 votes

自API 26起不推荐使用ProgressDialog

仍然可以使用此：

public void button_click(View view)

{

final ProgressDialog progressDialog = ProgressDialog.show(Login.this,"Please Wait","Processing...",true);

}

Anish Arya answered 2020-02-04T18:44:32Z

1 votes

简单方法：

ProgressDialog pDialog = new ProgressDialog(MainActivity.this); //Your Activity.this

pDialog.setMessage("Loading...!");

pDialog.setCancelable(false);

pDialog.show();

Chathura answered 2020-02-04T18:44:52Z

0 votes

final ProgressDialog progDailog = ProgressDialog.show(Inishlog.this, contentTitle, "even geduld aub....", true);//please wait....

final Handler handler = new Handler() {

@Override

public void handleMessage(Message msg) {

Barcode_edit.setText("");

showAlert("Product detail saved.");

}

};

new Thread() {

public void run() {

try {

} catch (Exception e) {

}

handler.sendEmptyMessage(0);

progDailog.dismiss();

}

}.start();

KeTaN answered 2020-02-04T18:45:08Z

0 votes

步骤1：建立XML档案

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

android:id="@+id/btnProgress"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:text="Progress Dialog"/>

步骤2：建立SampleActivity.java

package com.scancode.acutesoft.telephonymanagerapp;

import android.app.Activity;

import android.app.ProgressDialog;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

public class SampleActivity extends Activity implements View.OnClickListener {

Button btnProgress;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

btnProgress = (Button) findViewById(R.id.btnProgress);

btnProgress.setOnClickListener(this);

}

@Override

public void onClick(View v) {

final ProgressDialog progressDialog = new ProgressDialog(SampleActivity.this);

progressDialog.setMessage("Please wait data is Processing");

progressDialog.show();

// After 2 Seconds i dismiss progress Dialog

new Thread(){

@Override

public void run() {

super.run();

try {

Thread.sleep(2000);

if (progressDialog.isShowing())

progressDialog.dismiss();

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}.start();

}

}

Manikanta Reddy answered 2020-02-04T18:45:32Z