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开发
设计搞了一个带圆形进度的进度条,在GitHub上逛了一圈,发现没有,自己撸吧。
先看界面效果:

自定义进度条
主要思路是写一个继承ProgressBar的自定义View,不废话,直接上代码:

package com.fun.progressbarwithnumber;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.RectF;import android.util.AttributeSet;import android.util.TypedValue;import android.widget.ProgressBar;public class HorizontalProgressBarWithNumber extends ProgressBar {private static final int DEFAULT_TEXT_SIZE = 10;private static final int DEFAULT_TEXT_COLOR = 0XFFFC00D1;private static final int DEFAULT_COLOR_UNREACHED_COLOR = 0xFFd3d6da;private static final int DEFAULT_HEIGHT_REACHED_PROGRESS_BAR = 2;private static final int DEFAULT_HEIGHT_UNREACHED_PROGRESS_BAR = 2;private static final int DEFAULT_CIRCLE_COLOR = 0XFF3F51B5;protected Paint mPaint = new Paint();// 字体颜色protected int mTextColor = DEFAULT_TEXT_COLOR;// 字体大小protected int mTextSize = sp2px(DEFAULT_TEXT_SIZE);// 覆盖进度高度protected int mReachedProgressBarHeight = dp2px(DEFAULT_HEIGHT_REACHED_PROGRESS_BAR);// 覆盖进度颜色protected int mReachedBarColor = DEFAULT_TEXT_COLOR;// 未覆盖进度高度protected int mUnReachedProgressBarHeight = dp2px(DEFAULT_HEIGHT_UNREACHED_PROGRESS_BAR);// 未覆盖进度颜色protected int mUnReachedBarColor = DEFAULT_COLOR_UNREACHED_COLOR;// 圆的颜色protected int mCircleColor = DEFAULT_CIRCLE_COLOR;protected int mRealWidth;protected boolean mIfDrawText = true;protected boolean mIfDrawCircle = true;protected static final int VISIBLE = 0;public HorizontalProgressBarWithNumber(Context context, AttributeSet attrs) {this(context, attrs, 0);}public HorizontalProgressBarWithNumber(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);obtainStyledAttributes(attrs);mPaint.setTextSize(mTextSize);mPaint.setColor(mTextColor);mPaint.setAntiAlias(true);}private void obtainStyledAttributes(AttributeSet attrs) {// 获取自定义属性final TypedArray attributes = getContext().obtainStyledAttributes(attrs, R.styleable.HorizontalProgressBarWithNumber);mTextColor = attributes.getColor(R.styleable.HorizontalProgressBarWithNumber_progress_text_color, DEFAULT_TEXT_COLOR);mTextSize = (int) attributes.getDimension(R.styleable.HorizontalProgressBarWithNumber_progress_text_size, mTextSize);mCircleColor = attributes.getColor(R.styleable.HorizontalProgressBarWithNumber_progress_circle_color, DEFAULT_CIRCLE_COLOR);mReachedBarColor = attributes.getColor(R.styleable.HorizontalProgressBarWithNumber_progress_reached_color, mTextColor);mUnReachedBarColor = attributes.getColor(R.styleable.HorizontalProgressBarWithNumber_progress_unreached_color, DEFAULT_COLOR_UNREACHED_COLOR);mReachedProgressBarHeight = (int) attributes.getDimension(R.styleable.HorizontalProgressBarWithNumber_progress_reached_bar_height, mReachedProgressBarHeight);mUnReachedProgressBarHeight = (int) attributes.getDimension(R.styleable.HorizontalProgressBarWithNumber_progress_unreached_bar_height, mUnReachedProgressBarHeight);int textVisible = attributes.getInt(R.styleable.HorizontalProgressBarWithNumber_progress_text_visibility, VISIBLE);if (textVisible != VISIBLE) {mIfDrawText = false;}attributes.recycle();int left = (int) (mReachedProgressBarHeight * 0.8), right = (int) (mReachedProgressBarHeight * 0.8);int top = (int) (mReachedProgressBarHeight * 0.3 + dp2px(1)), bottom = (int) (mReachedProgressBarHeight * 0.3 + dp2px(1));setPadding(left, top, right, bottom);}@Overrideprotected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {int width = MeasureSpec.getSize(widthMeasureSpec);int height = measureHeight(heightMeasureSpec);setMeasuredDimension(width, height);mRealWidth = getMeasuredWidth() - getPaddingRight() - getPaddingLeft();}private int measureHeight(int measureSpec) {int result;int specMode = MeasureSpec.getMode(measureSpec);int specSize = MeasureSpec.getSize(measureSpec);if (specMode == MeasureSpec.EXACTLY) {result = specSize;} else {float textHeight = (mPaint.descent() - mPaint.ascent());result = (int) (getPaddingTop() + getPaddingBottom() + Math.max(Math.max(mReachedProgressBarHeight, mUnReachedProgressBarHeight), Math.abs(textHeight)));if (specMode == MeasureSpec.AT_MOST) {result = Math.min(result, specSize);}}return result;}@Overrideprotected synchronized void onDraw(Canvas canvas) {canvas.save();canvas.translate(getPaddingLeft(), getHeight() / 2);boolean noNeedBg = false;float radio = getProgress() * 1.0f / getMax();float progressPosX = (int) (mRealWidth * radio);String text = getProgress() + "%";float textWidth = mPaint.measureText(text);float textHeight = (mPaint.descent() + mPaint.ascent()) / 2;float radius = (mReachedProgressBarHeight + getPaddingBottom() + getPaddingTop()) / 2;// 覆盖的进度float endX = progressPosX;if (endX > -1) {mPaint.setColor(mReachedBarColor);RectF rectF = new RectF(0, 0 - getPaddingTop() - getPaddingBottom(),endX, mReachedProgressBarHeight - getPaddingBottom());canvas.drawRoundRect(rectF, 25, 25, mPaint);}// 未覆盖的进度if (!noNeedBg) {float start = progressPosX;mPaint.setColor(mUnReachedBarColor);RectF rectF = new RectF(start, 0 - getPaddingTop() - getPaddingBottom(),mRealWidth + getPaddingRight() - radius, mReachedProgressBarHeight - getPaddingBottom());canvas.drawRoundRect(rectF, 25, 25, mPaint);}// 圆if (mIfDrawCircle) {mPaint.setColor(mCircleColor);canvas.drawCircle(progressPosX, 0, radius, mPaint);}// 文本if (mIfDrawText) {mPaint.setColor(mTextColor);canvas.drawText(text, progressPosX - textWidth / 2, -textHeight, mPaint);}canvas.restore();}/** * dp 2 px */protected int dp2px(int dpVal) {return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dpVal, getResources().getDisplayMetrics());}/** * sp 2 px */protected int sp2px(int spVal) {return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, spVal, getResources().getDisplayMetrics());}}
使用
在布局文件中加入:
<com.fun.progressbarwithnumber.HorizontalProgressBarWithNumberandroid:id="@+id/hpbwn"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_margin="10dp"fun:progress_circle_color="#ff000000"fun:progress_reached_bar_height="20dp"fun:progress_reached_color="#FFFF4081"fun:progress_text_color="#ffffffff"fun:progress_text_size="14sp"fun:progress_unreached_bar_height="20dp"fun:progress_unreached_color="#ffBCB4E8" />
progress_reached_bar_height:当前进度的高度
progress_unreached_bar_height:剩余进度的高度
progress_text_size:圆圈内文字的大小
注意:
当前进度和剩余进度的高度要一致,圆圈大小和圆圈内文字的大小要配合Java代码调整。
项目源码:
https://github.com/hfrommane/ProgressBarWithNumber
以上所述是小编给大家介绍的Android实现带数字的圆形进度条(自定义进度条),希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持!