android - 使用 Glide 加载图像时的进度条

Question

在使用 Glide 加载图像之前，我可以在占位符中加载带有旋转动画的微调器吗？

我正在尝试使用 .placeholder(R.Drawable.spinner) 来做到这一点，没有动画出现？

如果有人能帮帮我就好了？

谢谢!

Answer 1

编辑: 现在使用 CircularProgressDrawable 非常简单

build.gradle

implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.1.0"

MyGlideModule.kt

@GlideModule
class MyGlideModule : AppGlideModule()

MainActivity.kt

override fun onCreate(savedInstanceState: Bundle?) {
  super.onCreate(savedInstanceState)
  setContentView(R.layout.activity_main)

  val circularProgressDrawable = CircularProgressDrawable(this)
  circularProgressDrawable.strokeWidth = 5f
  circularProgressDrawable.centerRadius = 30f
  circularProgressDrawable.start()

  GlideApp.with(applicationContext)
      .load("https://raw.githubusercontent.com/bumptech/glide/master/static/glide_logo.png")
      .placeholder(circularProgressDrawable)
      .into(a_main_image)
}

这些是其他一些 Glide snippets

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老答案:你也可以创建一个普通的ProgressBar，然后隐藏在Glide的onResourceReady()上。

The method that will be called when the resource load has finished.

---

示例:

MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final ImageView imageView = (ImageView) findViewById(R.id.img_glide);
    final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progress);

    Glide.with(this)
            .load("https://raw.githubusercontent.com/bumptech/glide/master/static/glide_logo.png")
            .listener(new RequestListener<Drawable>() {
                @Override
                public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
                    progressBar.setVisibility(View.GONE);
                    return false;
                }

                @Override
                public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
                    progressBar.setVisibility(View.GONE);
                    return false;
                }
            })
            .into(imageView);
}

activity_main.xml(布局):

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

    <ProgressBar
        android:id="@+id/progress"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:visibility="visible" />

    <ImageView
        android:id="@+id/img_glide"
        android:layout_width="match_parent"
        android:layout_height="100dp" />

</RelativeLayout>

---

结果: