效果如下 gif圖展示效果不好,實際體驗無卡頓 1.自定義屬性 早Values目錄下New values resource file,命名為attrs.xml(命名隨意,但規範命名為attrs.xml) 自定義屬性如下,註意format不要與Android自帶的命名重覆。 2.編寫自定義View 3 ...
效果如下
gif圖展示效果不好,實際體驗無卡頓
1.自定義屬性
早Values目錄下New-values resource file,命名為attrs.xml(命名隨意,但規範命名為attrs.xml)
自定義屬性如下,註意format不要與Android自帶的命名重覆。
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="QQStepView">
<attr name="outerColor" format="color" />
<attr name="innerColor" format="color" />
<attr name="borderWidth" format="dimension" />
<attr name="stepTextSize" format="dimension" />
<attr name="stepTextColor" format="color" />
</declare-styleable>
<declare-styleable name="MyProgressBar">
<attr name="leftColor" format="color" />
<attr name="rightColor" format="color" />
<attr name="progressTextColor" format="color" />
<attr name="progressTextSize" format="dimension" />
<attr name="progressBounds" format="dimension" />
</declare-styleable>
</resources>
2.編寫自定義View
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.support.annotation.Nullable;
import android.util.AttributeSet;
import android.view.View;
import com.cyq.customview2.R;
import com.cyq.customview2.utils.MeasureUtils;
@SuppressWarnings("all")
public class QQStepView extends View {
private int mOuterColor = Color.parseColor("#2196F3");
private int mInnerColor = Color.parseColor("#F44336");
private int mStepTextColor = Color.parseColor("#EC407A");
private int mBorderWidth = 20;//px
private int mStepTextSize = 18;//px
private int mSeptMax = 10000;
private int mSeptCurrent = 0;
private Paint mOutPaint;
private Paint mInnerPaint;
private Paint mTextPaint;
public QQStepView(Context context) {
this(context, null);
}
public QQStepView(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public QQStepView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.QQStepView);
mOuterColor = array.getColor(R.styleable.QQStepView_outerColor, mOuterColor);
mInnerColor = array.getColor(R.styleable.QQStepView_innerColor, mInnerColor);
mStepTextColor = array.getColor(R.styleable.QQStepView_stepTextColor, mStepTextColor);
mBorderWidth = (int) array.getDimension(R.styleable.QQStepView_borderWidth, MeasureUtils.dp2px(mBorderWidth, this));
mStepTextSize = array.getDimensionPixelSize(R.styleable.QQStepView_stepTextSize, MeasureUtils.sp2px(mStepTextSize, this));
array.recycle();
mOutPaint = new Paint();
mOutPaint.setAntiAlias(true);
mOutPaint.setStrokeWidth(mBorderWidth);
mOutPaint.setColor(mOuterColor);
mOutPaint.setStyle(Paint.Style.STROKE);
mOutPaint.setStrokeCap(Paint.Cap.ROUND);//圓角
mInnerPaint = new Paint();
mInnerPaint.setAntiAlias(true);
mInnerPaint.setStrokeWidth(mBorderWidth);
mInnerPaint.setColor(mInnerColor);
mInnerPaint.setStyle(Paint.Style.STROKE);//實心
mInnerPaint.setStrokeCap(Paint.Cap.ROUND);//圓角
mTextPaint = new Paint();
mTextPaint.setAntiAlias(true);
mTextPaint.setStyle(Paint.Style.STROKE);
mTextPaint.setColor(mStepTextColor);
mTextPaint.setTextSize(mStepTextSize);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
if (widthMode == MeasureSpec.AT_MOST && heightMode == MeasureSpec.AT_MOST) {
//用戶設置的是wrap_content,此時設置一個預設寬高100
width = height = MeasureUtils.dp2px(200, this);
}
setMeasuredDimension(width > height ? height : width, width > height ? height : width);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int center = getWidth() / 2;
int radius = getWidth() / 2 - mBorderWidth;
RectF rectF = new RectF(mBorderWidth, mBorderWidth, center + radius, center + radius);
canvas.drawArc(rectF, 135, 270, false, mOutPaint);
if (mSeptMax == 0) return;
float sweepAngle = (float) mSeptCurrent / mSeptMax;
canvas.drawArc(rectF, 135, 270 * sweepAngle, false, mInnerPaint);
String stepText = mSeptCurrent + "";
Rect textBounds = new Rect();
mTextPaint.getTextBounds(stepText, 0, stepText.length(), textBounds);
int dx = getWidth() / 2 - textBounds.width() / 2;
int baseLine = MeasureUtils.measureBaseLine(mTextPaint, stepText, this);
canvas.drawText(stepText, dx, baseLine, mTextPaint);
}
public void setmSeptMax(int mSeptMax) {
this.mSeptMax = mSeptMax;
}
public synchronized void setmSeptCurrent(int mSeptCurrent) {
this.mSeptCurrent = mSeptCurrent;
//重繪
invalidate();
}
}
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.support.annotation.Nullable;
import android.util.AttributeSet;
import android.view.View;
import com.cyq.customview2.R;
import com.cyq.customview2.utils.MeasureUtils;
@SuppressWarnings("all")
public class MyProgressBar extends View {
private int mLiftColor = Color.parseColor("#F44336");
private int mRightColor = Color.parseColor("#E0E0E0");
private int mProgressTextColor = Color.parseColor("#616161");
private int mProgressTextSize = 12;//px 後續再考慮需不需要轉換成sp
private int mProgressBounds = 1;//px
private int mCurrentProgress, mMaxProgress = 100;//預設最大刻度為100
private Paint mLeftPaint, mRightPaint, mTextPaint;
public MyProgressBar(Context context) {
this(context, null);
}
public MyProgressBar(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0);
}
public MyProgressBar(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.MyProgressBar);
mLiftColor = array.getColor(R.styleable.MyProgressBar_leftColor, mLiftColor);
mRightColor = array.getColor(R.styleable.MyProgressBar_rightColor, mRightColor);
mProgressTextColor = array.getColor(R.styleable.MyProgressBar_progressTextColor, mProgressTextColor);
mProgressTextSize = array.getDimensionPixelSize(R.styleable.MyProgressBar_progressTextSize, mProgressTextSize);
array.recycle();
mLeftPaint = new Paint();
mLeftPaint.setAntiAlias(true);
mLeftPaint.setColor(mLiftColor);
mRightPaint = new Paint();
mRightPaint.setAntiAlias(true);
mRightPaint.setColor(mRightColor);
mTextPaint = new Paint();
mTextPaint.setAntiAlias(true);
mTextPaint.setStyle(Paint.Style.STROKE);
mTextPaint.setColor(mProgressTextColor);
mTextPaint.setTextSize(mProgressTextSize);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
int widht = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(widht, height);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
mRightPaint.setStrokeWidth(getHeight());
RectF rightRect = new RectF(0, 0, getWidth(), getHeight());
canvas.drawRoundRect(rightRect, getHeight() / 2, getHeight() / 2, mRightPaint);
mLeftPaint.setStrokeWidth(getHeight());
float progress = (float) mCurrentProgress / (mMaxProgress * 10);
int radius = getHeight() / 2;
RectF rectF = new RectF(0, 0, progress * getWidth(), getHeight());
canvas.drawRoundRect(rectF, radius, radius, mLeftPaint);
//畫文字隨著進度條右移
String text = (float) mCurrentProgress / 10 + "%";
int dx = getHeight() / 2;
Rect textBounds = new Rect();
mTextPaint.getTextBounds(text, 0, text.length(), textBounds);
int baseLine = MeasureUtils.measureBaseLine(mTextPaint, text, this);
canvas.drawText(text, progress * getWidth() + 10, baseLine, mTextPaint);
}
public void setProgress(int mCurrentProgress) {
this.mCurrentProgress = mCurrentProgress;
//重繪
invalidate();
}
public void setMaxProgress(int mMaxProgress) {
this.mMaxProgress = mMaxProgress;
}
public int getProgress() {
return mCurrentProgress;
}
}
3.為自定義View添加動畫
首先在xml中使用我們的自定義佈局和自定義屬性
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".page3.QQSportActivity">
<com.cyq.customview2.page3.QQStepView
android:id="@+id/custom_QQ_step"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="50dp"
app:borderWidth="6dp"
app:innerColor="@color/innerColor"
app:outerColor="@color/outerColor"
app:stepTextSize="30sp"
android:layout_marginBottom="100dp"/>
<com.cyq.customview2.page3.MyProgressBar
android:id="@+id/custom_progressbar"
android:layout_width="match_parent"
android:layout_height="20dp"
android:layout_margin="50dp"
app:leftColor="@color/innerColor"
app:progressTextColor="@color/stepTextColor"
app:progressTextSize="16sp"
app:rightColor="@color/greyColor" />
</LinearLayout>
通過屬性動畫動態增加進度
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.animation.DecelerateInterpolator;
import com.cyq.customview2.R;
import butterknife.BindView;
import butterknife.ButterKnife;
public class QQSportActivity extends AppCompatActivity {
@BindView(R.id.custom_QQ_step)
QQStepView customQQStep;
@BindView(R.id.custom_progressbar)
MyProgressBar customProgressbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_qqsport);
ButterKnife.bind(this);
customQQStep.setmSeptMax(10000);
//屬性動畫
ValueAnimator valueAnimator = ObjectAnimator.ofFloat(0, 8765);
valueAnimator.setDuration(2000);
valueAnimator.setInterpolator(new DecelerateInterpolator());//插值器
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float currentStep = (Float) animation.getAnimatedValue();
customQQStep.setmSeptCurrent((int) currentStep);
}
});
valueAnimator.start();
//屬性動畫
ValueAnimator valueAnimator2 = ObjectAnimator.ofFloat(0, 780);
valueAnimator2.setDuration(2000);
valueAnimator2.setInterpolator(new DecelerateInterpolator());//插值器
valueAnimator2.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float currentStep = (Float) animation.getAnimatedValue();
customProgressbar.setProgress((int) currentStep);
}
});
valueAnimator2.start();
}
}
獲取文字基線和sp,dp轉xp的工具類如下;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.TypedValue;
import android.view.View;
public class MeasureUtils {
/**
* drawText獲取基線
*
* @param textPaint
* @param text
* @param view
* @return
*/
public static int measureBaseLine(Paint textPaint, String text, View view) {
Rect textBounds = new Rect();
textPaint.getTextBounds(text, 0, text.length(), textBounds);
Paint.FontMetricsInt fontMetricsInt = textPaint.getFontMetricsInt();
int dy = (fontMetricsInt.bottom - fontMetricsInt.top) / 2 - fontMetricsInt.bottom;
int baseLine = view.getHeight() / 2 + dy;
return baseLine;
}
public static int sp2px(int sp, View view) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp, view.getResources().getDisplayMetrics());
}
public static int dp2px(int dp, View view) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, view.getResources().getDisplayMetrics());
}
}
後續待改進
1.sp,dp,xp的轉換
2.進度文字接近100%時不向右邊移動,並且文字和進度重疊部分動態變色