Android自定义环形LoadingView结果-

这篇文章主要为大家细致介绍了Android自定义环形LoadingView结果的办法，拥有一定的参照 价值，感乐趣的小同伴们可以参照 一下 这篇文章主要为大家细致介绍了Android自定义环形LoadingView结果的办法，拥有一定的参照 价值，感乐趣的小同伴们可以参照 一下

比来项目有要用到环形的进度条,Github上有一个相似的DashedCircularProgress控件,但是他画的进度是通过设定画笔的虚线结果来实现隔断的:progressPaint.setPathEffect(new DashPathEffect(new float[]{dashWith, dashSpace}, dashSpace));要是内层还有一层圆环,在动态设定时,内层和外层有细微的偏向.于是我在原有根基上改了一个,实现了我要的结果(设定进度时可以选中加动画或者不加动画):

public interface OnValueChangeListener {
  void onValueChange(float value);
}

中心绘制类:

InternalCirclePainterImp2,绘制内层的玄色的环形:

/**
 * @author Chuck
 */
public class InternalCirclePainterImp2 implements InternalCirclePainter {

  private RectF internalCircle;//画出圆弧时,圆弧的外切矩形
  private Paint internalCirclePaint;
  private int color;
  private float startAngle = 270f;
  int arcQuantity=100;//等分(圆弧加隔断),比方arcQuantity=100时,表示将有100个圆弧,和100个空白隔断
  float ratio=0.5f;//每段圆弧与圆弧加隔断之和的比例,ratio=0.5表示每个圆弧与相邻的隔断弧度比是1:1
  private int width;
  private int height;
  private int internalStrokeWidth = 48;//圆环宽度

  public InternalCirclePainterImp2(int color, int progressStrokeWidth, int arcQuantity,float ratio) {
    this.color = color;
    this.internalStrokeWidth = progressStrokeWidth;
    this.arcQuantity = arcQuantity;
    if(ratio>0&&ratio<1){
      this.ratio = ratio;
    }

    init();
  }

  private void init() {
    initExternalCirclePainter();
  }

  private void initExternalCirclePainter() {
    internalCirclePaint = new Paint();
    internalCirclePaint.setAntiAlias(true);
    internalCirclePaint.setStrokeWidth(internalStrokeWidth);
    internalCirclePaint.setColor(color);
    internalCirclePaint.setStyle(Paint.Style.STROKE);

  }

  //圆弧外切矩形
  private void initExternalCircle() {
    internalCircle = new RectF();
    float padding = internalStrokeWidth * 0.5f;
    internalCircle.set(padding, padding , width - padding, height - padding);
    initExternalCirclePainter();
  }


  @Override
  public void draw(Canvas canvas) {

    float eachAngle=360f/arcQuantity;

    float eachArcAngle=eachAngle*ratio;

    for(int i=0;i
ProgressPainterImp2,绘制内层的玄色的环形:
/**
 * @author Chuck
 */
public class ProgressPainterImp2 implements ProgressPainter {

  private RectF progressCircle;
  private Paint progressPaint;
  private int color = Color.RED;
  private float startAngle = 270f;
  private int internalStrokeWidth = 48;
  private float min;
  private float max;
  private int width;
  private int height;

  private int currentPecent;//目前的百分比

  int arcQuantity=100;//等分(圆弧加隔断),比方arcQuantity=100时,表示将有100个圆弧,和100个空白隔断
  float ratio=0.5f;//每段圆弧与圆弧加隔断之和的比例,ratio=0.5表示每个圆弧与相邻的隔断弧度比是1:1

  public ProgressPainterImp2(int color, float min, float max, int progressStrokeWidth, int arcQuantity,float ratio) {
    this.color = color;
    this.min = min;
    this.max = max;
    this.internalStrokeWidth = progressStrokeWidth;
    this.arcQuantity = arcQuantity;
    this.ratio = ratio;
    init();
    Log.e("ProgressPainterImp","结构函数施行");
  }

  private void init() {
    initInternalCirclePainter();

  }

  private void initInternalCirclePainter() {
    progressPaint = new Paint();
    progressPaint.setAntiAlias(true);
    progressPaint.setStrokeWidth(internalStrokeWidth);
    progressPaint.setColor(color);
    progressPaint.setStyle(Paint.Style.STROKE);

  }

  //初始化外切的阿谁矩形
  private void initInternalCircle() {
    progressCircle = new RectF();
    float padding = internalStrokeWidth * 0.5f;
    progressCircle.set(padding, padding , width - padding, height - padding);

    initInternalCirclePainter();
  }

  @Override
  public void draw(Canvas canvas) {

    float eachAngle=360f/arcQuantity;

    float eachArcAngle=eachAngle*ratio;

    int quantity=2*arcQuantity*currentPecent/100;
    for(int i=0;i
可以自定义的属性:

   
  
  
  
  
  

  
  
  
  
  
调取:
main_activity.xml:



  
  

    
      

        

    

  

  

  
MainActivity:
findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View view) {
    try {
      mDashedCircularProgress.setValue(66);//没有动画的,直接设定
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
});
findViewById(R.id.button3).setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View view) {
    try {
      mDashedCircularProgress.setValue(0);//无动画,归零
      mDashedCircularProgress.setValueWithAnimation(100,2000);//带动画
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
});
Github地址:https://github.com/506954774/AndroidCircularLoadingView
以上就是本文的全部内容，但愿对大家的学习有所帮忙，更多相干内容请关注百分百源码网！