Android 仿支付宝中的余额宝收益进度条

package com.framework.widget;import android.app.Activity;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Rect;import android.graphics.RectF;import android.util.AttributeSet;import android.util.DisplayMetrics;import android.view.View;import com.R;/** * @author dahai * @ClassName: (仿支付宝) 收益进度条 * @Description: ${todo} * @date ${date} ${time} * @email 202491024@qq.com * @since $android 进度条  */public class ProfitProgerssBar extends View { //背景色 private static final int DEFAULT_BACK_COLOR = Color.parseColor("#ffffff"); //字的颜色 private static final int DEFAULT_TEXT_COLOR = Color.parseColor("#ffffff"); //进度条背景颜色 private static final int DEFAULT_PROGRESS_COLOR = Color.parseColor("#abacaf"); //进度条默认的高度 private static final float DEFAULT_PROGRESS_HEIGHT =120f; //文字的大小 private static final float DEFAULT_TEXT_SIZE = 50; /**  * 收益进度条左右两边margin大小  */ private static final int MARGIN_SIZE = 20; private Context context; /**  * 背景颜色的画笔  */ private Paint backgroundPaint; /**  * 收益进度颜色的画笔  */ private Paint progressPaint; /**  * 画文字的画笔  */ private Paint textPaint; /**  * 背景的宽度  */ private int view_background_width; /**  * 背景的高度  */ private float view_background_height = DEFAULT_PROGRESS_HEIGHT; /**  * 日期  */ private String date = "2016/12/07"; /**  * 描叙(百分比/元)  */ private String desc = "2.1234"; /**  * 要显示的长度的百分比  */ private int progress = 70; //进度条颜色 private int progress_color = DEFAULT_PROGRESS_COLOR; //背景色 private int progress_back_color = DEFAULT_BACK_COLOR; //字的颜色 private int text_color = DEFAULT_TEXT_COLOR; //字的大小 private float TEXT_SIZE = DEFAULT_TEXT_SIZE; public ProfitProgerssBar(Context context) {  super(context);  initView(context); } public ProfitProgerssBar(Context context, AttributeSet attrs) {  super(context, attrs);  initView(context); } public ProfitProgerssBar(Context context, AttributeSet attrs, int defStyleAttr) {  super(context, attrs, defStyleAttr);  initView(context); } private void initView(Context context) {  this.context = context;  TypedArray typedArray = this.context.obtainStyledAttributes(R.styleable.ProfitProgerssBar);  progress_back_color = typedArray.getColor(R.styleable.ProfitProgerssBar_progress_backg_color,DEFAULT_BACK_COLOR);  text_color = typedArray.getColor(R.styleable.ProfitProgerssBar_progress_text_color,DEFAULT_TEXT_COLOR);  TEXT_SIZE = typedArray.getDimension(R.styleable.ProfitProgerssBar_progress_text_size,DEFAULT_TEXT_SIZE);  backgroundPaint = new Paint();  backgroundPaint.setStrokeWidth(10);  backgroundPaint.setColor(progress_back_color);  backgroundPaint.setDither(true);  backgroundPaint.setAntiAlias(true);  progressPaint = new Paint();  progressPaint.setStrokeWidth(10);  progressPaint.setDither(true);  progressPaint.setAntiAlias(true);  textPaint = new Paint();  textPaint.setStrokeWidth(10);  textPaint.setDither(true);  textPaint.setAntiAlias(true);  textPaint.setTextSize(TEXT_SIZE);  DisplayMetrics d = new DisplayMetrics();  ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(d);  view_background_width = d.widthPixels; } /**  * 初始化 进度条  * @param date  * @param desc  * @param progress  * @param progressColor  */ public void init(String date,String desc,int progress,int progressColor){  this.date = date;  this.desc = desc;  this.progress = progress;  this.progress_color = progressColor; } @Override protected void onDraw(Canvas canvas) {  super.onDraw(canvas);  view_background_height = this.getMeasuredHeight();  RectF r = new RectF();  r.left = 0;  r.top = 0;  r.right = view_background_width;  r.bottom = view_background_height;////------------------------  canvas.drawRect(r, backgroundPaint);  RectF r1 = new RectF();  r1.left = 0;  r1.top = 0;  r1.right = view_background_width * progress / 100;  r1.bottom = view_background_height;////------------------------  progressPaint.setColor(progress_color);  canvas.drawRect(r1, progressPaint);  textPaint.setColor(text_color);  Rect r2 = new Rect();  textPaint.getTextBounds(date,0,date.length(),r2);  canvas.drawText(date, MARGIN_SIZE, (view_background_height-r2.top)/2, textPaint);//日期  Rect r3 = new Rect();  textPaint.getTextBounds(desc,0,desc.length(),r3);  if(progress>95&&progress<100){   canvas.drawText(desc, r1.right-textPaint.measureText(desc)-MARGIN_SIZE-30,(view_background_height-r3.top)/2, textPaint);  }else if(progress>=100) {   canvas.drawText(desc, r1.right-textPaint.measureText(desc)-MARGIN_SIZE-45,(view_background_height-r3.top)/2, textPaint);  }else {   canvas.drawText(desc, r1.right - textPaint.measureText(desc) - MARGIN_SIZE, (view_background_height - r3.top) / 2, textPaint);  }  invalidate(); }}

<com.framework.widget.ProfitProgerssBar android:layout_width="match_parent" android:layout_height="35dp" android:layout_marginLeft="10dp" android:layout_marginRight="10dp" android:layout_marginTop="10dp" app:progress_back_color="@color/white" app:progress_text_color="@color/white" app:progress_text_size="14dp" android:id="@+id/profitProgerssBar" /><declare-styleable name="ProfitProgerssBar"> <attr name="progress_backg_color" format="color"/> <attr name="progress_text_color" format="color"/> <attr name="progress_text_size" format="dimension"/></declare-styleable>