如何在Android中创建循环进度条并在其上旋转？

Question

我正在尝试创建一个圆形的进度条.这就是我想要实现的目标

有一个灰色背景环.在它的顶部,出现一个蓝色进度条,它在60或几秒钟内以0到360的圆形路径移动.

这是我的示例代码.

<ProgressBar
            android:id="@+id/ProgressBar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            style="?android:attr/progressBarStyleLarge"
            android:indeterminateDrawable="@drawable/progressBarBG"
            android:progress="50"
            />

为此,在drawable"progressBarBG"中,我创建了一个图层列表,在该图层列表中,我给出了两个项目,如图所示.

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
    <shape
            android:shape="ring"
            android:innerRadius="64dp"
            android:thickness="8dp"
            android:useLevel="false">

        <solid android:color="@color/grey" />
    </shape>
</item>

<item android:id="@android:id/progress">
    <clip>
        <shape
                android:shape="ring"
                android:innerRadius="64dp"
                android:thickness="8dp"
                android:useLevel="false">

            <solid android:color="@color/blue" />
        </shape>
    </clip>
</item>

现在,第一个灰色环很好.然而,蓝色环从drawable的左侧开始向右移动,就像线性进度条的工作原理一样.这是它显示50%进度的方式,红色箭头显示方向.

我想按预期在圆形路径中移动蓝色进度条.

Answer 1

这是我的两个解决方案.

简短回答:

layer-list我没有创建一个,而是将它分成两个文件.一个为ProgressBar一个,一个为其背景.

这是ProgressDrawable文件(@drawable文件夹):circular_progress_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="270"
    android:toDegrees="270">
    <shape
        android:innerRadiusRatio="2.5"
        android:shape="ring"
        android:thickness="1dp"
        android:useLevel="true"><!-- this line fixes the issue for lollipop api 21 -->

        <gradient
            android:angle="0"
            android:endColor="#007DD6"
            android:startColor="#007DD6"
            android:type="sweep"
            android:useLevel="false" />
    </shape>
</rotate>

这是为了它的background(@drawable文件夹):circle_shape.xml

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="ring"
    android:innerRadiusRatio="2.5"
    android:thickness="1dp"
    android:useLevel="false">

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

</shape>

最后,在您正在工作的布局中:

<ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:indeterminate="false"
        android:progressDrawable="@drawable/circular_progress_bar"
        android:background="@drawable/circle_shape"
        style="?android:attr/progressBarStyleHorizontal"
        android:max="100"
        android:progress="65" />

这是结果:

答案很长:

使用继承的自定义视图 android.view.View

这是github上的完整项目

Answer 2

我用简单的方法做了:

请检查屏幕截图.

CustomProgressBarActivity.java:

public class CustomProgressBarActivity extends AppCompatActivity {

    private TextView txtProgress;
    private ProgressBar progressBar;
    private int pStatus = 0;
    private Handler handler = new Handler();

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

        txtProgress = (TextView) findViewById(R.id.txtProgress);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);

        new Thread(new Runnable() {
            @Override
            public void run() {
                while (pStatus <= 100) {
                    handler.post(new Runnable() {
                        @Override
                        public void run() {
                            progressBar.setProgress(pStatus);
                            txtProgress.setText(pStatus + " %");
                        }
                    });
                    try {
                        Thread.sleep(100);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    pStatus++;
                }
            }
        }).start();

    }
}

activity_custom_progressbar.xml:

<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.skholingua.android.custom_progressbar_circular.MainActivity" >


    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_centerInParent="true"
        android:layout_height="wrap_content">

        <ProgressBar
            android:id="@+id/progressBar"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="250dp"
            android:layout_height="250dp"
            android:layout_centerInParent="true"
            android:indeterminate="false"
            android:max="100"
            android:progress="0"
            android:progressDrawable="@drawable/custom_progressbar_drawable"
            android:secondaryProgress="0" />


        <TextView
            android:id="@+id/txtProgress"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignBottom="@+id/progressBar"
            android:layout_centerInParent="true"
            android:textAppearance="?android:attr/textAppearanceSmall" />
    </RelativeLayout>



</RelativeLayout>

custom_progressbar_drawable.xml:

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="-90"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toDegrees="270" >

    <shape
        android:shape="ring"
        android:useLevel="false" >
        <gradient
            android:centerY="0.5"
            android:endColor="#FA5858"
            android:startColor="#0099CC"
            android:type="sweep"
            android:useLevel="false" />
    </shape>

</rotate>

希望这会帮助你.

Answer 3

我在我的博客demonuts.com上写了关于android中循环进度条的详细示例.您还可以在那里喜欢完整的源代码和解释.

这是我在没有任何库的纯代码中使用圆圈内百分比制作圆形进度条的方法.

首先创建一个名为drawable的文件 circular.xml

<?xml version="1.0" encoding="utf-8"?>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/secondaryProgress">
        <shape
            android:innerRadiusRatio="6"
            android:shape="ring"
            android:thicknessRatio="20.0"
            android:useLevel="true">


            <gradient
                android:centerColor="#999999"
                android:endColor="#999999"
                android:startColor="#999999"
                android:type="sweep" />
        </shape>
    </item>

    <item android:id="@android:id/progress">
        <rotate
            android:fromDegrees="270"
            android:pivotX="50%"
            android:pivotY="50%"
            android:toDegrees="270">

            <shape
                android:innerRadiusRatio="6"
                android:shape="ring"
                android:thicknessRatio="20.0"
                android:useLevel="true">


                <rotate
                    android:fromDegrees="0"
                    android:pivotX="50%"
                    android:pivotY="50%"
                    android:toDegrees="360" />

                <gradient
                    android:centerColor="#00FF00"
                    android:endColor="#00FF00"
                    android:startColor="#00FF00"
                    android:type="sweep" />

            </shape>
        </rotate>
    </item>
</layer-list>

现在在您activity_main.xml 添加以下内容:

  <?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"
    android:background="@color/dialog"
    tools:context="com.example.parsaniahardik.progressanimation.MainActivity">

    <ProgressBar

        android:id="@+id/circularProgressbar"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="250dp"
        android:layout_height="250dp"
        android:indeterminate="false"
        android:max="100"
        android:progress="50"
        android:layout_centerInParent="true"
        android:progressDrawable="@drawable/circular"
        android:secondaryProgress="100"
        />

    <ImageView
        android:layout_width="90dp"
        android:layout_height="90dp"
        android:background="@drawable/whitecircle"
        android:layout_centerInParent="true"/>

    <TextView
        android:id="@+id/tv"
        android:layout_width="250dp"
        android:layout_height="250dp"
        android:gravity="center"
        android:text="25%"
        android:layout_centerInParent="true"
        android:textColor="@color/colorPrimaryDark"
        android:textSize="20sp" />

</RelativeLayout>

在activity_main.xml我使用一个带有白色背景的圆形图像来显示百分比周围的白色背景.这是图像:

您可以更改此图像的颜色以围绕百分比文本设置自定义颜色.

现在最后添加以下代码MainActivity.java:

import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.animation.DecelerateInterpolator;
import android.widget.ProgressBar;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    int pStatus = 0;
    private Handler handler = new Handler();
    TextView tv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Resources res = getResources();
        Drawable drawable = res.getDrawable(R.drawable.circular);
        final ProgressBar mProgress = (ProgressBar) findViewById(R.id.circularProgressbar);
        mProgress.setProgress(0);   // Main Progress
        mProgress.setSecondaryProgress(100); // Secondary Progress
        mProgress.setMax(100); // Maximum Progress
        mProgress.setProgressDrawable(drawable);

      /*  ObjectAnimator animation = ObjectAnimator.ofInt(mProgress, "progress", 0, 100);
        animation.setDuration(50000);
        animation.setInterpolator(new DecelerateInterpolator());
        animation.start();*/

        tv = (TextView) findViewById(R.id.tv);
        new Thread(new Runnable() {

            @Override
            public void run() {
                // TODO Auto-generated method stub
                while (pStatus < 100) {
                    pStatus += 1;

                    handler.post(new Runnable() {

                        @Override
                        public void run() {
                            // TODO Auto-generated method stub
                            mProgress.setProgress(pStatus);
                            tv.setText(pStatus + "%");

                        }
                    });
                    try {
                        // Sleep for 200 milliseconds.
                        // Just to display the progress slowly
                        Thread.sleep(8); //thread will take approx 1.5 seconds to finish
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }).start();
    }
}

如果你想制作水平进度条,请点击此链接,它有很多有价值的例子,包括源代码:http:
//www.skholingua.com/android-basic/user-interface/form-widgets/progressbar

Answer 4

通过材料组件库，您可以使用CircularProgressIndicator：

就像是：

<com.google.android.material.progressindicator.CircularProgressIndicator
    app:indicatorColor="@color/...."
    app:trackColor="@color/...."
    app:indicatorSize="64dp"/>

您可以使用这些属性：

• indicatorSize：定义圆形进度指示器的半径
• trackColor：用于进度轨道的颜色。如果未定义，它将被设置为主题indicatorColor并应用android:disabledAlpha主题。
• indicatorColor：在确定/不确定模式下用于指标的单一颜色。默认情况下，它使用主题原色

使用progressIndicator.setProgressCompat((int) value, true);更新指标值。

注意：它至少需要版本1.3.0-alpha04.

Answer 5

这是一个用于显示圆圈进度的简单自定义视图。您可以修改和优化更多以适合您的项目。

class CircleProgressBar @JvmOverloads constructor(
        context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
) : View(context, attrs, defStyleAttr) {
    private val backgroundWidth = 10f
    private val progressWidth = 20f

    private val backgroundPaint = Paint().apply {
        color = Color.LTGRAY
        style = Paint.Style.STROKE
        strokeWidth = backgroundWidth
        isAntiAlias = true
    }

    private val progressPaint = Paint().apply {
        color = Color.RED
        style = Paint.Style.STROKE
        strokeWidth = progressWidth
        isAntiAlias = true
    }

    var progress: Float = 0f
        set(value) {
            field = value
            invalidate()
        }

    private val oval = RectF()
    private var centerX: Float = 0f
    private var centerY: Float = 0f
    private var radius: Float = 0f

    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
        centerX = w.toFloat() / 2
        centerY = h.toFloat() / 2
        radius = w.toFloat() / 2 - progressWidth
        oval.set(centerX - radius,
                centerY - radius,
                centerX + radius,
                centerY + radius)
        super.onSizeChanged(w, h, oldw, oldh)
    }

    override fun onDraw(canvas: Canvas?) {
        super.onDraw(canvas)
        canvas?.drawCircle(centerX, centerY, radius, backgroundPaint)
        canvas?.drawArc(oval, 270f, 360f * progress, false, progressPaint)
    }
}

使用示例

xml

<com.example.androidcircleprogressbar.CircleProgressBar
    android:id="@+id/circle_progress"
    android:layout_width="200dp"
    android:layout_height="200dp" />

科特林

class MainActivity : AppCompatActivity() {
    val TOTAL_TIME = 10 * 1000L

    override fun onCreate(savedInstanceState: Bundle?) {
        ...

        timeOutRemoveTimer.start()
    }

    private var timeOutRemoveTimer = object : CountDownTimer(TOTAL_TIME, 10) {
        override fun onFinish() {
            circle_progress.progress = 1f
        }

        override fun onTick(millisUntilFinished: Long) {
            circle_progress.progress = (TOTAL_TIME - millisUntilFinished).toFloat() / TOTAL_TIME
        }
    }
}

结果

Answer 6

我在GitHub CircularProgressBar上实现了一个开源库,它可以以最简单的方式完成你想要的:

用法

为了使一个圆形进度添加CircularProgressBar在布局XML,并添加CircularProgressBar库在您的投影机,或者您也可以通过摇篮抓住它:

compile 'com.mikhaellopez:circularprogressbar:1.0.0'

XML

<com.mikhaellopez.circularprogressbar.CircularProgressBar
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:background_progressbar_color="#FFCDD2"
    app:background_progressbar_width="5dp"
    app:progressbar_color="#F44336"
    app:progressbar_width="10dp" />

您必须在XML中使用以下属性来更改CircularProgressBar.

属性:

• app:progress (整数)>>默认值0
• app:progressbar_color (颜色)>>默认黑色
• app:background_progressbar_color (颜色)>>默认灰色
• app:progressbar_width (维度)>>默认7dp
• app:background_progressbar_width (维度)>>默认3dp

JAVA

CircularProgressBar circularProgressBar = (CircularProgressBar)findViewById(R.id.yourCircularProgressbar);
circularProgressBar.setColor(ContextCompat.getColor(this, R.color.progressBarColor));
circularProgressBar.setBackgroundColor(ContextCompat.getColor(this, R.color.backgroundProgressBarColor));
circularProgressBar.setProgressBarWidth(getResources().getDimension(R.dimen.progressBarWidth));
circularProgressBar.setBackgroundProgressBarWidth(getResources().getDimension(R.dimen.backgroundProgressBarWidth));
int animationDuration = 2500; // 2500ms = 2,5s
circularProgressBar.setProgressWithAnimation(65, animationDuration); // Default duration = 1500ms

在此处下载或下载此库>> https://github.com/lopspower/CircularProgressBar

Answer 7

我是新手，所以我无法发表评论，但认为可以分享这个懒惰的修复程序。我也使用Pedram的原始方法，并且遇到了同样的Lollipop问题。但是，另一篇文章中的alanv有一个单独的行修复。它是API21中的某种错误或疏忽。从字面上看，只需将android:useLevel="true"进度xml 添加到您的圈子中即可。Pedram的新方法仍然是正确的解决方法，但我只是认为我也分享了惰性修复方法。

Answer 8

<?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">
    <ProgressBar
        android:id="@+id/progress_circular_id"
        android:layout_width="250dp"
        android:layout_height="250dp"
        android:layout_centerInParent="true"
        android:indeterminate="false"
        android:progress="30"
        android:progressDrawable="@drawable/circular_progress_bar"
        android:background="@drawable/circle_shape"
        style="?android:attr/progressBarStyleHorizontal"
        android:max="100">
    </ProgressBar>
    <TextView
        android:id="@+id/textview_progress_status_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="50%"
        android:layout_centerInParent="true"
        android:textStyle="bold"
        android:textColor="@color/blue"
        android:textSize="35dp">
    </TextView>

    <Button
        android:id="@+id/check"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp"
        android:text="click me"
        android:textColor="@color/white"
        android:layout_below="@+id/progress_circular_id"
        android:layout_centerHorizontal="true"
        >
    </Button>
</RelativeLayout>

创建一个名为Circle_shape.xml的可绘制文件

<?xml version="1.0" encoding="utf-8"?>
<shape
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="ring"
    android:innerRadiusRatio="2.5"
    android:thickness="25dp"
    android:useLevel="false">
    <solid android:color="#CCC" />

</shape>

使用circular_progress_bar.xml创建文件

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="270"
    android:toDegrees="270">
    <shape
        android:innerRadiusRatio="2.5"
        android:shape="ring"
        android:thickness="25dp"
        android:useLevel="true"><!-- this line fixes the issue for lollipop api 21 -->

        <gradient
            android:angle="0"
            android:endColor="#007DD6"
            android:startColor="#007DD6"
            android:type="sweep"
            android:useLevel="false" />
    </shape>
</rotate>

在 java 文件中，例如使用了 Fragmet。

public class FragmentRegistration extends BaseFragmentHelper {
    View registrationFragmentView;
    ProgressBar progressBar;
    Button button;
    int count=0;
    @Override
    public void onAttachFragment(@NonNull Fragment childFragment) {
        super.onAttachFragment(childFragment);
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        registrationFragmentView = inflater.inflate(R.layout.new_device_registration, container, false);
        progressBar=(ProgressBar)registrationFragmentView.findViewById(R.id.progress_circular_id);
        button=(Button) registrationFragmentView.findViewById(R.id.check);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                count=count+10;
                progressBar.setProgress(count);
            }
        });
        return registrationFragmentView;
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

    @Override
    public void onStart() {
        super.onStart();
    }

    @Override
    public void onResume() {
        super.onResume();
    }

    @Override
    public void onDetach() {
        super.onDetach();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
    }
}

Answer 9

https://github.com/passsy/android-HoloCircularProgressBar是执行此操作的库的一个示例。正如 Tenfour04 所说，它必须是某种定制的，因为这不直接支持开箱即用。如果这个库的行为不符合您的意愿，您可以分叉它并修改详细信息以使其符合您的喜好。如果您实现了其他人可以重用的东西，您甚至可以提交拉取请求以将其合并回来！