问题描述
我需要水平放置 4 个圆形进度条,如下所示:
所以我决定使用新的材料组件循环进度指示器(https://material.io/components/progress-indicators/android)。我传播链这4个进度条 在约束布局中,但它们不缩放。看起来他们仍然拥有默认的 24dp 尺寸。例如,即使我尝试将宽度和高度硬编码为 200dp,输出的进度条仍然很小。
<com.google.android.material.progressindicator.CircularProgressIndicator
android:id="@+id/progressBarCalories"
style="@style/ProgressBarCircular"
android:layout_marginTop="32dp"
android:layout_marginStart="16dp"
android:layout_marginEnd="6dp"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintTop_toBottomOf="@id/wrapperCookingTime"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="@id/progressBarProtein"
tools:progress="75"/>
<com.google.android.material.progressindicator.CircularProgressIndicator
android:id="@+id/progressBarProtein"
style="@style/ProgressBarCircular"
android:layout_marginTop="32dp"
android:layout_marginStart="6dp"
android:layout_marginEnd="6dp"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintTop_toBottomOf="@id/wrapperCookingTime"
app:layout_constraintStart_toEndOf="@id/progressBarCalories"
app:layout_constraintEnd_toStartOf="@id/progressBarCarbs"
tools:progress="75"/>
<com.google.android.material.progressindicator.CircularProgressIndicator
android:id="@+id/progressBarCarbs"
style="@style/ProgressBarCircular"
android:layout_marginTop="32dp"
android:layout_marginStart="6dp"
android:layout_marginEnd="6dp"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintTop_toBottomOf="@id/wrapperCookingTime"
app:layout_constraintStart_toEndOf="@id/progressBarProtein"
app:layout_constraintEnd_toStartOf="@id/progressBarFat"
tools:progress="75"/>
<com.google.android.material.progressindicator.CircularProgressIndicator
android:id="@+id/progressBarFat"
style="@style/ProgressBarCircular"
android:layout_marginTop="32dp"
android:layout_marginStart="6dp"
android:layout_marginEnd="16dp"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintHorizontal_chainStyle="spread"
app:layout_constraintTop_toBottomOf="@id/wrapperCookingTime"
app:layout_constraintStart_toEndOf="@id/progressBarCarbs"
app:layout_constraintEnd_toEndOf="parent"
tools:progress="75"/>
<com.google.android.material.progressindicator.CircularProgressIndicator
android:id="@+id/progressBar"
style="@style/ProgressBarCircular"
android:layout_marginTop="32dp"
app:layout_constraintWidth_min="200dp"
android:minWidth="200dp"
android:layout_width="200dp"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="@id/progressBarFat"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
tools:progress="75"/>
解决方法
您必须使用 indicatorSize
属性:
<com.google.android.material.progressindicator.CircularProgressIndicator
android:indeterminate="true"
android:layout_width="100dp"
android:layout_height="100dp"
app:indicatorSize="90dp"
app:indicatorColor="@color/colorPrimary"
../>
,
我认为这是因为在样式中progressBar的maxHeight和maxWidth设置为48dp。您必须覆盖它才能制作条形刻度。
,对于那些使用数据绑定的,你可以使用
@BindingAdapter("bindProgressSizeToViewWidth")
fun bindProgressSizeToViewWidth(circularProgressIndicator: CircularProgressIndicator,view: View?) {
view ?: LogEventUtils.logApiError("bindProgressSizeToViewWidth: null view").run { return } // safty line you can remove it
view.post {
circularProgressIndicator.indicatorSize = view.measuredWidth
}
}
XML(只需给文本内边距 12dp 并使其在circularProgressIndicator 中居中)
<androidx.appcompat.widget.AppCompatTextView
android:id="@+id/progressTv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="sans-serif"
android:lineSpacingExtra="4sp"
android:padding="12dp"
tools:text="4/15"
android:textColor="@color/pumpkin_orange"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintStart_toStartOf="@id/circularProgressIndicator"
app:layout_constraintBottom_toBottomOf="@+id/circularProgressIndicator"
app:layout_constraintEnd_toEndOf="@+id/circularProgressIndicator"
app:layout_constraintTop_toTopOf="@+id/circularProgressIndicator" />
<com.google.android.material.progressindicator.CircularProgressIndicator
android:id="@+id/circularProgressIndicator"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:indeterminate="false"
android:progress="@{40}"
app:bindProgressSizeToViewWidth="@{progressTv}"
app:indicatorColor="?colorPrimary"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:trackColor="@color/battleship_grey" />
结果
,版本:
implementation 'com.google.android.material:material:1.5.0-alpha01'
您可以使用以下属性设置大小:
app:indicatorSize="180dp"
app:trackThickness="10dp"
完整的 xml 项目将类似于:
<com.google.android.material.progressindicator.CircularProgressIndicator
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:indicatorSize="180dp"
app:trackThickness="10dp"
app:trackColor="@color/colorPrimary"
app:indicatorColor="@color/colorPrimaryDark"
android:layout_gravity="center_horizontal"
android:progress="80"
app:trackCornerRadius="8dp"
android:layout_marginTop="30dp"/>
请注意:您需要将 XML Display Theme 设置为“MeterialTheme”才能看到 UI 更新。