您不需要导入任何自定义库。

我更喜欢使用现代的AlertDialog，所以这是Kishan Donga在本页发布的伟大答案的Kotlin版本。

芬兰湾的科特林代码:

fun setProgressDialog(context:Context, message:String):AlertDialog {
    val llPadding = 30
    val ll = LinearLayout(context)
    ll.orientation = LinearLayout.HORIZONTAL
    ll.setPadding(llPadding, llPadding, llPadding, llPadding)
    ll.gravity = Gravity.CENTER
    var llParam = LinearLayout.LayoutParams(
                  LinearLayout.LayoutParams.WRAP_CONTENT,
                  LinearLayout.LayoutParams.WRAP_CONTENT)
    llParam.gravity = Gravity.CENTER
    ll.layoutParams = llParam

    val progressBar = ProgressBar(context)
    progressBar.isIndeterminate = true
    progressBar.setPadding(0, 0, llPadding, 0)
    progressBar.layoutParams = llParam

    llParam = LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT)
    llParam.gravity = Gravity.CENTER
    val tvText = TextView(context)
    tvText.text = message
    tvText.setTextColor(Color.parseColor("#000000"))
    tvText.textSize = 20.toFloat()
    tvText.layoutParams = llParam

    ll.addView(progressBar)
    ll.addView(tvText)

    val builder = AlertDialog.Builder(context)
    builder.setCancelable(true)
    builder.setView(ll)

    val dialog = builder.create()
    val window = dialog.window
    if (window != null) {
        val layoutParams = WindowManager.LayoutParams()
        layoutParams.copyFrom(dialog.window?.attributes)
        layoutParams.width = LinearLayout.LayoutParams.WRAP_CONTENT
        layoutParams.height = LinearLayout.LayoutParams.WRAP_CONTENT
                dialog.window?.attributes = layoutParams
    }
    return dialog
}

用法:

val dialog = setProgressDialog(this, "Loading..")
dialog.show()

输出:

是的，在API级别26中已弃用。相反，您可以使用progressBar。

以编程方式创建:

首先获取根布局的引用

RelativeLayout layout = findViewById(R.id.display);  //specify here Root layout Id

or

RelativeLayout layout = findViewById(this);

然后添加进度条

progressBar = new ProgressBar(youractivity.this, null, android.R.attr.progressBarStyleLarge);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(100, 100);
params.addRule(RelativeLayout.CENTER_IN_PARENT);
layout.addView(progressBar, params);

显示进度条

progressBar.setVisibility(View.VISIBLE);

隐藏进度条

progressBar.setVisibility(View.GONE);

要禁用用户交互，您只需要添加以下内容 代码

getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
                           WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);

为了恢复用户交互，您只需要添加以下代码

getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);

只是为了将来参考，将android. r.t r. progressbarstylesmall更改为android. r.t r. progressbarstylehorizontal。

下面的代码只能在API级别21以上工作

progressBar.setProgressTintList(ColorStateList.valueOf(Color.RED));

---

通过xml创建:

<ProgressBar
        android:id="@+id/progressbar"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:indeterminate="true"
        android:max="100"
        android:backgroundTint="@color/white"
        android:layout_below="@+id/framelauout"
        android:indeterminateTint="#1a09d6"
        android:layout_marginTop="-7dp"/>

在你的活动中

progressBar = (ProgressBar) findViewById(R.id.progressbar);

显示/隐藏进度条是一样的

 progressBar.setVisibility(View.VISIBLE); // To show the ProgressBar 
 progressBar.setVisibility(View.INVISIBLE); // To hide the ProgressBar

下面是它的样例图像:

详情如下: 1. 引用一个 2. 引用两个

也许这个指南可以帮助你。

通常我更喜欢用指示器制作自定义alertdialog。它解决了诸如自定义App视图等问题。

你可以使用AlertDialog作为ProgressDialog，参考下面的ProgressDialog代码。无论何时显示进度对话框，都需要调用此函数。

代码:

    public void setProgressDialog() {

    int llPadding = 30;
    LinearLayout ll = new LinearLayout(this);
    ll.setOrientation(LinearLayout.HORIZONTAL);
    ll.setPadding(llPadding, llPadding, llPadding, llPadding);
    ll.setGravity(Gravity.CENTER);
    LinearLayout.LayoutParams llParam = new LinearLayout.LayoutParams(
            LinearLayout.LayoutParams.WRAP_CONTENT,
            LinearLayout.LayoutParams.WRAP_CONTENT);
    llParam.gravity = Gravity.CENTER;
    ll.setLayoutParams(llParam);

    ProgressBar progressBar = new ProgressBar(this);
    progressBar.setIndeterminate(true);
    progressBar.setPadding(0, 0, llPadding, 0);
    progressBar.setLayoutParams(llParam);

    llParam = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
            ViewGroup.LayoutParams.WRAP_CONTENT);
    llParam.gravity = Gravity.CENTER;
    TextView tvText = new TextView(this);
    tvText.setText("Loading ...");
    tvText.setTextColor(Color.parseColor("#000000"));
    tvText.setTextSize(20);
    tvText.setLayoutParams(llParam);

    ll.addView(progressBar);
    ll.addView(tvText);

    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setCancelable(true);
    builder.setView(ll);

    AlertDialog dialog = builder.create();
    dialog.show();
    Window window = dialog.getWindow();
    if (window != null) {
        WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
        layoutParams.copyFrom(dialog.getWindow().getAttributes());
        layoutParams.width = LinearLayout.LayoutParams.WRAP_CONTENT;
        layoutParams.height = LinearLayout.LayoutParams.WRAP_CONTENT;
        dialog.getWindow().setAttributes(layoutParams);
    }
}

输出:

好吧，如果你真的想违背他们的意愿，你仍然可以使用甜蜜警报对话框或自己创建一个。

progress_dialog_layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TableRow
        android:layout_centerInParent="true"
        android:layout_width="match_parent"
        android:layout_height="64dp" >

        <ProgressBar
            android:id="@+id/progressBar2"
            style="?android:attr/progressBarStyle"
            android:layout_width="wrap_content"
            android:layout_height="match_parent" />

        <TextView
            android:gravity="center|left"
            android:id="@+id/textView9"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:textColor="@color/black"
            android:textSize="18sp"
            android:text="Downloading data. Please wait.." />
    </TableRow>
</RelativeLayout>

Java代码:

AlertDialog b;
AlertDialog.Builder dialogBuilder;

public void ShowProgressDialog() {
dialogBuilder = new AlertDialog.Builder(DataDownloadActivity.this);
LayoutInflater inflater = (LayoutInflater) getSystemService( Context.LAYOUT_INFLATER_SERVICE );
            View dialogView = inflater.inflate(R.layout.progress_dialog_layout, null);
            dialogBuilder.setView(dialogView);
            dialogBuilder.setCancelable(false);
            b = dialogBuilder.create();
            b.show();
        }

        public void HideProgressDialog(){

            b.dismiss();
        }

你可以使用wasabeef库来使用SpotDialog，你可以从下面的链接找到完整的教程:

Android中的SpotsDialog示例