如何自定义ProgressBar的边框宽度

Question

我有默认进度条

对我来说这是非常大的边框。如何制作这样的进度条（细边框）？

我有一个简单的布局

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


    <ProgressBar
        android:id="@+id/hello_progress_bar"
        android:layout_width="210dp"
        android:layout_height="210dp"

        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

Answer 1

为您的进度创建一个可绘制形状的文件

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toDegrees="360">

    <shape
        android:innerRadiusRatio="3"
        android:shape="ring"
        android:thicknessRatio="8"
        android:useLevel="false">

        <solid
             android:color="#F3A523"/>

     </shape>

</rotate>

在您的 ProgressBar

中使用它

 <ProgressBar
    android:id="@+id/progress_bar"
    android:layout_width="24dp"
    android:layout_height="24dp"
    android:indeterminate="true"
    android:progressDrawable="@drawable/progress_bar"
    android:indeterminateDrawable="@drawable/progress_bar"
  />

这样您就可以通过 thicknessRatio 属性的 drawable

来控制边框的宽度

Answer 2

1> Create a Drawable for Ring Progressbar progressbar.xml and put into drawabal folder.

 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
        <item android:id="@android:id/progress">
            <rotate android:toDegrees="360">
                <shape
                    android:shape="ring"
                    android:thickness="4dp"
                    android:innerRadiusRatio="3"
                    android:thicknessRatio="20.0">
                    <solid android:color="#FF4081" />
                </shape>
            </rotate>
        </item>
    </layer-list>

2> Set above Drawable into your progressbar

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


        <ProgressBar
            android:id="@+id/hello_progress_bar"
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_marginBottom="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:progressDrawable="@drawable/progressbar"
            android:indeterminateDrawable="@drawable/progressbar"
             />

    </android.support.constraint.ConstraintLayout>

在可绘制文件中设置以下属性

android:innerRadiusRatio="3"
android:thicknessRatio="20.0

希望对您有所帮助

Answer 3

布局文件

 <ProgressBar
        android:id="@+id/progress"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="270dp"
        android:layout_height="270dp"
        android:layout_gravity="center"
        android:indeterminate="false"
        android:max="200"
        android:progress="100"
        android:progressDrawable="@drawable/progress" />

drawable/progress.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
       android:innerRadiusRatio="2.3"
       android:shape="ring"
       android:thickness="10dp"
       android:useLevel="true">

      <solid android:color="#05b61c" />
</shape>

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