自定义ProgressBar（圆）
2024-06-05 20:06:04
2019独角兽企业重金招聘Python工程师标准>>> 
<lib.view.progressbar.ColorArcProgressBar
android:layout_width="match_parent"
android:layout_height="220dip"
android:id="@+id/barInterest"
android:layout_centerInParent="true"
android:layout_gravity="center_horizontal"
app:back_color="@android:color/darker_gray"
app:back_width="8dp"
app:current_value="66"
app:front_color2="@color/common_gray_fa"
app:front_color1="@color/common_gray_fa"
app:front_color3="@color/common_orange_m"
app:front_width="8dp"
app:is_need_content="true"
app:is_need_title="true"
app:is_need_unit="true"
app:max_value="100"
app:string_title="年化收益(%)"
app:string_unit=""/>
package lib.view.progressbar;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PaintFlagsDrawFilter;
import android.graphics.RectF;
import android.graphics.SweepGradient;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.WindowManager;
import com.lsy.hebao.R;
import lib.util.MathUtil;
public class ColorArcProgressBar extends View {private int diameter = 500; //直径
private float centerX; //圆心X坐标
private float centerY; //圆心Y坐标
private Paint allArcPaint;
private Paint progressPaint;
private Paint vTextPaint;
private Paint hintPaint;
private Paint degreePaint;
private Paint curSpeedPaint;
private RectF bgRect;
private ValueAnimator progressAnimator;
private PaintFlagsDrawFilter mDrawFilter;
private float startAngle = 150;
private float sweepAngle = 240;
private float currentAngle = 0;
private float lastAngle;
private float maxValues = 60;
private float curValues = 0;
private float bgArcWidth = dipToPx(2);
private float progressWidth = dipToPx(10);
private float textSize = dipToPx(60);
private float hintSize = dipToPx(15);
private float curSpeedSize = dipToPx(13);
private int aniSpeed = 1000;
private float longdegree = dipToPx(13);
private float shortdegree = dipToPx(5);
private final int DEGREE_PROGRESS_DISTANCE = dipToPx(18);
private String longDegreeColor = "#111111";
private String shortDegreeColor = "#111111";
private String bgArcColor = "#88F0f0f0";
private String currentArcColor = "#FFB700";
private String titleString;
private String hintString;
private boolean isNeedTitle;
private boolean isNeedUnit;
private boolean isNeedDial;
private boolean isNeedContent;
// sweepAngle / maxValues 的值
private float k;
private int color1,color2,color3;
public ColorArcProgressBar(Context context) {super(context, null);
initView();
}public ColorArcProgressBar(Context context, AttributeSet attrs) {super(context, attrs, 0);
initCofig(context, attrs);
initView();
}public ColorArcProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);
initCofig(context, attrs);
initView();
}/**
* 初始化布局配置
* @param context
* @param attrs
*/
private void initCofig(Context context, AttributeSet attrs) {TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ColorArcProgressBar);
color1 = a.getColor(R.styleable.ColorArcProgressBar_front_color1, Color.GREEN);
color2 = a.getColor(R.styleable.ColorArcProgressBar_front_color2, color1);
color3 = a.getColor(R.styleable.ColorArcProgressBar_front_color3, color1);
sweepAngle = a.getInteger(R.styleable.ColorArcProgressBar_total_engle, 240);
bgArcWidth = a.getDimension(R.styleable.ColorArcProgressBar_back_width, dipToPx(2));
progressWidth = a.getDimension(R.styleable.ColorArcProgressBar_front_width, dipToPx(10));
isNeedTitle = a.getBoolean(R.styleable.ColorArcProgressBar_is_need_title, false);
isNeedContent = a.getBoolean(R.styleable.ColorArcProgressBar_is_need_content, false);
isNeedUnit = a.getBoolean(R.styleable.ColorArcProgressBar_is_need_unit, false);
isNeedDial = a.getBoolean(R.styleable.ColorArcProgressBar_is_need_dial, false);
hintString = a.getString(R.styleable.ColorArcProgressBar_string_unit);
titleString = a.getString(R.styleable.ColorArcProgressBar_string_title);
curValues = a.getFloat(R.styleable.ColorArcProgressBar_current_value, 0);
maxValues = a.getFloat(R.styleable.ColorArcProgressBar_max_value, 60);
setCurrentValues(curValues);
setMaxValues(maxValues);
a.recycle();
}@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int width = (int) (2 * longdegree + progressWidth + diameter + 2 * DEGREE_PROGRESS_DISTANCE);
int height= (int) (2 * longdegree + progressWidth + diameter + 2 * DEGREE_PROGRESS_DISTANCE);
setMeasuredDimension(width, height);
}private void initView() {diameter = 3 * getScreenWidth() / 5;
//弧形的矩阵区域
bgRect = new RectF();
bgRect.top = longdegree + progressWidth/2 + DEGREE_PROGRESS_DISTANCE;
bgRect.left = longdegree + progressWidth/2 + DEGREE_PROGRESS_DISTANCE;
bgRect.right = diameter + (longdegree + progressWidth/2 + DEGREE_PROGRESS_DISTANCE);
bgRect.bottom = diameter + (longdegree + progressWidth/2 + DEGREE_PROGRESS_DISTANCE);
//圆心
centerX = (2 * longdegree + progressWidth + diameter + 2 * DEGREE_PROGRESS_DISTANCE)/2;
centerY = (2 * longdegree + progressWidth + diameter + 2 * DEGREE_PROGRESS_DISTANCE)/2;
//外部刻度线
degreePaint = new Paint();
degreePaint.setColor(Color.parseColor(longDegreeColor));
//整个弧形
allArcPaint = new Paint();
allArcPaint.setAntiAlias(true);
allArcPaint.setStyle(Paint.Style.STROKE);
allArcPaint.setStrokeWidth(bgArcWidth);
allArcPaint.setColor(Color.parseColor(bgArcColor));
allArcPaint.setStrokeCap(Paint.Cap.ROUND);
//当前进度的弧形
progressPaint = new Paint();
progressPaint.setAntiAlias(true);
progressPaint.setStyle(Paint.Style.STROKE);
progressPaint.setStrokeCap(Paint.Cap.ROUND);
progressPaint.setStrokeWidth(progressWidth);
progressPaint.setColor(Color.parseColor(currentArcColor));
//内容显示文字
vTextPaint = new Paint();
vTextPaint.setTextSize(textSize);
vTextPaint.setColor(color2);
vTextPaint.setTextAlign(Paint.Align.CENTER);
//显示单位文字
hintPaint = new Paint();
hintPaint.setTextSize(hintSize);
hintPaint.setColor(color3);
hintPaint.setTextAlign(Paint.Align.CENTER);
//显示标题文字
curSpeedPaint = new Paint();
curSpeedPaint.setTextSize(curSpeedSize);
curSpeedPaint.setColor(color1);
curSpeedPaint.setTextAlign(Paint.Align.CENTER);
mDrawFilter = new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
}@Override
protected void onDraw(Canvas canvas) {//抗锯齿
canvas.setDrawFilter(mDrawFilter);
if (isNeedDial) {//画刻度线
for (int i = 0; i < 40; i++) {if (i > 15 && i < 25) {canvas.rotate(9, centerX, centerY);
continue;
}if (i % 5 == 0) {degreePaint.setStrokeWidth(dipToPx(2));
degreePaint.setColor(Color.parseColor(longDegreeColor));
canvas.drawLine(centerX, centerY - diameter / 2 - progressWidth / 2 - DEGREE_PROGRESS_DISTANCE,
centerX, centerY - diameter / 2 - progressWidth / 2 - DEGREE_PROGRESS_DISTANCE - longdegree, degreePaint);
} else {degreePaint.setStrokeWidth(dipToPx(1.4f));
degreePaint.setColor(Color.parseColor(shortDegreeColor));
canvas.drawLine(centerX, centerY - diameter / 2 - progressWidth / 2 - DEGREE_PROGRESS_DISTANCE - (longdegree - shortdegree) / 2,
centerX, centerY - diameter / 2 - progressWidth / 2 - DEGREE_PROGRESS_DISTANCE - (longdegree - shortdegree) / 2 - shortdegree, degreePaint);
}canvas.rotate(9, centerX, centerY);
}}//整个弧
canvas.drawArc(bgRect, startAngle, sweepAngle, false, allArcPaint);
//当前进度
canvas.drawArc(bgRect, startAngle, currentAngle, false, progressPaint);
if (isNeedContent) {canvas.drawText(MathUtil.mathTodecimaltwo(curValues/maxValues*10.88), centerX, centerY ,
vTextPaint);
}if (isNeedUnit) {canvas.drawText(hintString, centerX, centerY+textSize/2, hintPaint);
}if (isNeedTitle) {canvas.drawText(titleString, centerX, centerY - textSize , curSpeedPaint);
}invalidate();
}/**
* 设置最大值
* @param maxValues
*/
public void setMaxValues(float maxValues) {this.maxValues = maxValues;
k = sweepAngle/maxValues;
}/**
* 设置当前值
* @param currentValues
*/
public void setCurrentValues(float currentValues) {if (currentValues > maxValues) {currentValues = maxValues;
}if (currentValues < 0) {currentValues = 0;
}this.curValues = currentValues;
lastAngle = currentAngle;
setAnimation(lastAngle, currentValues * k, aniSpeed);
}/**
* 设置整个圆弧宽度
* @param bgArcWidth
*/
public void setBgArcWidth(int bgArcWidth) {this.bgArcWidth = bgArcWidth;
}/**
* 设置进度宽度
* @param progressWidth
*/
public void setProgressWidth(int progressWidth) {this.progressWidth = progressWidth;
}/**
* 设置速度文字大小
* @param textSize
*/
public void setTextSize(int textSize) {this.textSize = textSize;
}/**
* 设置单位文字大小
* @param hintSize
*/
public void setHintSize(int hintSize) {this.hintSize = hintSize;
}/**
* 设置单位文字
* @param hintString
*/
public void setUnit(String hintString) {this.hintString = hintString;
invalidate();
}/**
* 设置直径大小
* @param diameter
*/
public void setDiameter(int diameter) {this.diameter = dipToPx(diameter);
}/**
* 设置标题
* @param title
*/
private void setTitle(String title){this.titleString = title;
}/**
* 设置是否显示标题
* @param isNeedTitle
*/
private void setIsNeedTitle(boolean isNeedTitle) {this.isNeedTitle = isNeedTitle;
}/**
* 设置是否显示单位文字
* @param isNeedUnit
*/
private void setIsNeedUnit(boolean isNeedUnit) {this.isNeedUnit = isNeedUnit;
}/**
* 设置是否显示外部刻度盘
* @param isNeedDial
*/
private void setIsNeedDial(boolean isNeedDial) {this.isNeedDial = isNeedDial;
}/**
* 为进度设置动画
* @param last
* @param current
*/
private void setAnimation(float last, float current, int length) {progressAnimator = ValueAnimator.ofFloat(last, current);
progressAnimator.setDuration(length);
progressAnimator.setTarget(currentAngle);
progressAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {@Override
public void onAnimationUpdate(ValueAnimator animation) {currentAngle= (float) animation.getAnimatedValue();
curValues = currentAngle/k;
}});
progressAnimator.start();
}/**
* dip 转换成px
* @param dip
* @return
*/
private int dipToPx(float dip) {float density = getContext().getResources().getDisplayMetrics().density;
return (int)(dip * density + 0.5f * (dip >= 0 ? 1 : -1));
}/**
* 得到屏幕宽度
* @return
*/
private int getScreenWidth() {WindowManager windowManager = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics displayMetrics = new DisplayMetrics();
windowManager.getDefaultDisplay().getMetrics(displayMetrics);
return displayMetrics.widthPixels;
}
}
在mainActivity里面
private ColorArcProgressBar bar2;
bar2= (ColorArcProgressBar) view.findViewById(R.id.barInterest); bar2.setCurrentValues(40);
就这样完成了 哈哈哈！！！！
转载于:https://my.oschina.net/u/3407708/blog/887914
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