package com.lijunyan.blackmusic.view;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Shader;
import android.graphics.SweepGradient;
import android.graphics.drawable.Drawable;
import android.support.v4.graphics.drawable.DrawableCompat;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import com.lijunyan.blackmusic.R;
/**
* Created by lijunyan on 2017/3/7.
*/
public class ScanView extends View {
private static final String TAG = "ScanView";
/**
* 画圆的笔
*/
private Paint circlePaint;
/**
* 画扇形渲染的笔
*/
private Paint sectorPaint;
/**
* 扫描线程
*/
private ScanThread mThread;
/**
* 线程进行标志
*/
private boolean threadFlag = false;
/**
* 线程启动标志
*/
private boolean start = false;
/**
* 扇形转动的角度
*/
private int angle = 0;
/**
* 当前视图的宽高，这里相同
*/
private int viewSize;
/**
* 画在view中间的图片
*/
private Bitmap bitmap;
/**
* 对图形进行处理的矩阵类
*/
private Matrix matrix;
private int accentColor;
private String circlrColor1; //第一圈圆环颜色
private String circlrColor2; //第二圈圆环颜色
private String circlrColor3; //第三圈圆环颜色
private String color;
public ScanView(Context context) {
this(context, null);
}
public ScanView(Context context, AttributeSet attrs) {
super(context, attrs);
TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.theme);
if (typedArray != null) {
accentColor = typedArray.getColor(R.styleable.theme_accent_color, getResources().getColor(R.color.colorPrimary));
typedArray.recycle();
}
color = colorToHexString(Color.red(accentColor)) + colorToHexString(Color.green(accentColor)) +
colorToHexString(Color.blue(accentColor));
circlrColor1 = "#D0" + color;
circlrColor2 = "#70" + color;
circlrColor3 = "#30" + color;
Log.d(TAG, "ScanView: accentColor = "+ accentColor);
Log.d(TAG, "ScanView: color = "+ color);
Log.d(TAG, "ScanView: circlrColor1 = "+ circlrColor1);
initBitmap();
}
public static String colorToHexString(int color){
String colorHex;
Log.d(TAG, "colorToHexString: color = "+color);
if (color < 16){
colorHex = "0"+ Integer.toHexString(color);
}else {
colorHex = Integer.toHexString(color);
}
return colorHex;
}
/**
* 此处设置viewSize固定值为500
* @param widthMeasureSpec
* @param heightMeasureSpec
*/
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
viewSize = 500;
setMeasuredDimension(viewSize, viewSize);
}
/**
* 从资源中解码bitmap
*/
private void initBitmap() {
Drawable drawable = tintDrawable(getResources().getDrawable(R.drawable.music_note),ColorStateList.valueOf(accentColor));
bitmap = drawableToBitamp(drawable);
}
private Bitmap drawableToBitamp(Drawable drawable)
{
int w = drawable.getIntrinsicWidth();
int h = drawable.getIntrinsicHeight();
Bitmap bitmap = Bitmap.createBitmap(w,h,Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, w, h);
drawable.draw(canvas);
return bitmap;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
Paint mPaint = new Paint();
mPaint.setAntiAlias(true);
Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
Rect rectd = new Rect((viewSize / 10) * 4, (viewSize / 10) * 4, viewSize - (viewSize / 10) * 4, viewSize - (viewSize / 10) * 4);
canvas.drawBitmap(bitmap, rect, rectd, mPaint);
circlePaint = new Paint();
circlePaint.setStyle(Paint.Style.STROKE);
circlePaint.setAntiAlias(true);
circlePaint.setStrokeWidth((viewSize / 10));
circlePaint.setColor(Color.parseColor(circlrColor1));
canvas.drawCircle(viewSize / 2, viewSize / 2, (viewSize / 10) * 2.5f, circlePaint);
circlePaint.setColor(Color.parseColor(circlrColor2));
canvas.drawCircle(viewSize / 2, viewSize / 2, (viewSize / 10) * 3.5f, circlePaint);
circlePaint.setColor(Color.parseColor(circlrColor3));
canvas.drawCircle(viewSize / 2, viewSize / 2, (viewSize / 10) * 4.5f, circlePaint);
sectorPaint = new Paint();
sectorPaint.setAntiAlias(true);
sectorPaint.setStyle(Paint.Style.STROKE);
sectorPaint.setStrokeWidth((viewSize / 10) * 3);
Shader sectorShader = new SweepGradient(viewSize / 2, viewSize / 2,
new int[]{Color.TRANSPARENT, Color.argb(0,Color.red(accentColor),Color.green(accentColor),Color.blue(accentColor)),
Color.argb(255,Color.red(accentColor),Color.green(accentColor),Color.blue(accentColor))},
new float[]{0, 0.875f, 1f});
sectorPaint.setShader(sectorShader);
if (threadFlag) {
canvas.concat(matrix);
canvas.drawCircle(viewSize / 2, viewSize / 2, (viewSize / 10) * 3.5f, sectorPaint);
}
}
public void start() {
mThread = new ScanThread(this);
mThread.start();
threadFlag = true;
start = true;
}
public void stop() {
if (start) {
threadFlag = false;
start = false;
invalidate();
}
}
class ScanThread extends Thread {
private ScanView view;
public ScanThread(ScanView view) {
this.view = view;
}
@Override
public void run() {
super.run();
while (threadFlag) {
if (start) {
view.post(new Runnable() {
@Override
public void run() {
angle = angle + 5;
if (angle == 360) {
angle = 0;
}
matrix = new Matrix();
matrix.setRotate(angle, viewSize / 2, viewSize / 2);
view.invalidate();
}
});
try {
Thread.sleep(20);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
public Drawable tintDrawable(Drawable drawable, ColorStateList colors) {
Drawable wrappedDrawable = DrawableCompat.wrap(drawable);
DrawableCompat.setTintList(wrappedDrawable, colors);
return wrappedDrawable;
}
}
