这是我根据旋转旋转滚轮和声音坐标的代码，但我想根据固定点上的固定颜色旋转滚轮。
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.Rect;
import android.graphics.RectF;
import android.media.MediaPlayer;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import com.spin.wheel.manager.MyDBAdapter;
import com.spin.wheel.manager.Prefs;
import com.spin.wheel.ui.activity.HomeActivity;
import java.util.List;
import java.util.Random;
public class WheelView extends View {
public boolean lifted;
private Paint circlePaint;
private long currTime;
private String item;
private Paint item10Paint;
private Paint item11Paint;
private Paint item12Paint;
private Paint item13Paint;
private Paint item14Paint;
private Paint item15Paint;
private Paint item1Paint;
private Paint item2Paint;
private Paint item3Paint;
private Paint item4Paint;
private Paint item5Paint;
private Paint item6Paint;
private Paint item7Paint;
private Paint item8Paint;
private Paint item9Paint;
private float itemLength;
private List<String> itemNames;
private double lastTheta;
private String listName;
private Paint markerPaint;
private long oldTime;
private Paint pointerPaint;
private int px;
WheelView wheelView;
private int py;
private float radius;
private MediaPlayer resourcePlayer;
private Paint rimPaint;
private double rotationOffset;
private int selected;
private Paint textPaint;
private boolean textSet;
private long timeDiff;
private Paint titlePaint;
private String winner;
int padding;
int center;
Context mContext;
public WheelView(Context context) {
super(context);
mContext=context;
initWheelView();
}
public WheelView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext=context;
initWheelView();
}
public WheelView(Context context, AttributeSet ats, int defaultStyle) {
super(context, ats, defaultStyle);
mContext=context;
initWheelView();
}
protected void initWheelView() {
setFocusable(true);
Resources r = getResources();
this.circlePaint = new Paint(1);
this.circlePaint.setColor(r.getColor(R.color.wheel_color));
this.circlePaint.setStrokeWidth(5.0f);
this.circlePaint.setStyle(Style.STROKE);
this.rimPaint = new Paint(1);
this.rimPaint.setColor(r.getColor(R.color.text_color));
this.rimPaint.setStrokeWidth(1.0f);
this.rimPaint.setStyle(Style.STROKE);
this.textPaint = new Paint(1);
this.textPaint.setColor(r.getColor(R.color.text_color));
this.titlePaint = new Paint(1);
this.titlePaint.setColor(r.getColor(R.color.text_color));
this.pointerPaint = new Paint(1);
this.pointerPaint.setColor(r.getColor(R.color.pointer_color));
this.markerPaint = new Paint(1);
this.markerPaint.setStrokeWidth(2.0f);
this.markerPaint.setColor(r.getColor(R.color.marker_color));
this.item1Paint = new Paint(1);
this.item1Paint.setColor(r.getColor(R.color.item1_color));
this.item2Paint = new Paint(1);
this.item2Paint.setColor(r.getColor(R.color.item2_color));
this.item3Paint = new Paint(1);
this.item3Paint.setColor(r.getColor(R.color.item3_color));
this.item4Paint = new Paint(1);
this.item4Paint.setColor(r.getColor(R.color.item4_color));
this.item5Paint = new Paint(1);
this.item5Paint.setColor(r.getColor(R.color.item5_color));
this.item6Paint = new Paint(1);
this.item6Paint.setColor(r.getColor(R.color.item6_color));
this.item7Paint = new Paint(1);
this.item7Paint.setColor(r.getColor(R.color.item7_color));
this.item8Paint = new Paint(1);
this.item8Paint.setColor(r.getColor(R.color.item8_color));
this.item9Paint = new Paint(1);
this.item9Paint.setColor(r.getColor(R.color.item9_color));
this.item10Paint = new Paint(1);
this.item10Paint.setColor(r.getColor(R.color.item10_color));
this.item11Paint = new Paint(1);
this.item11Paint.setColor(r.getColor(R.color.item11_color));
this.item12Paint = new Paint(1);
this.item12Paint.setColor(r.getColor(R.color.item12_color));
this.item13Paint = new Paint(1);
this.item13Paint.setColor(r.getColor(R.color.item13_color));
this.item14Paint = new Paint(1);
this.item14Paint.setColor(r.getColor(R.color.item14_color));
this.item15Paint = new Paint(1);
this.item15Paint.setColor(r.getColor(R.color.item15_color));
this.lifted = false;
this.selected = -1;
this.lastTheta = 0.0d;
this.timeDiff = 0;
this.oldTime = System.currentTimeMillis();
this.currTime = System.currentTimeMillis();
this.winner = "";
this.resourcePlayer = MediaPlayer.create(getContext(), R.raw.wheel_sound_new);
this.item = "";
this.itemLength = 0.0f;
this.listName = "";
this.textSet = false;
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(measure(widthMeasureSpec), measure(heightMeasureSpec));
int width = Math.min(getMeasuredWidth(), getMeasuredHeight());
padding = getPaddingLeft() == 0 ? 0 : getPaddingLeft();
radius = width - padding * 2;
center = width / 2;
}
private int measure(int measureSpec) {
int specMode = MeasureSpec.getMode(measureSpec);
int specSize = MeasureSpec.getSize(measureSpec);
if (specMode == 0) {
return 200;
}
return specSize;
}
public boolean withinWheel(float _x, float _y) {
return getRadius() * getRadius() > ((_x - ((float) getPX())) * (_x - ((float) getPX()))) + ((((float) getPY()) - _y) * (((float) getPY()) - _y));
}
public void setList(String _listName) {
this.listName = _listName;
}
public void setRotation(double _rotation) {
Log.e("@@_rotation", String.valueOf(_rotation));
this.rotationOffset = _rotation % 360.0d;
}
public double getRotationNumber() {
Log.e("@@rotationOffset", String.valueOf(rotationOffset));
return this.rotationOffset;
}
public void setLastTheta(double _lastTheta, float width) {
float offset = 12800.0f / width;
if (_lastTheta < -40.0d) {
_lastTheta = (double) (-offset);
}
if (_lastTheta > 40.0d) {
_lastTheta = (double) offset;
}
this.lastTheta = _lastTheta;
}
public void setItems(List<String> items) {
this.itemNames = items;
}
public int getPX() {
return getMeasuredWidth() / 2;
}
public int getPY() {
return getMeasuredHeight() / 2;
}
public float getRadius() {
return ((float) Math.min(getPX(), getPY())) * 0.8f;
}
protected void onDraw(Canvas canvas) {
float tempAngle = 0;
float sweepAngle = 360 /6;
if (this.itemNames != null) {
int i;
float offSet = 0;
this.px = getMeasuredWidth() / 2;
this.py = getMeasuredHeight() / 2;
if (!this.textSet) {
this.textPaint.setTextSize((float) (getMeasuredWidth() / 25));
this.titlePaint.setTextSize((float) (getMeasuredWidth() / 15));
this.textSet = true;
}
this.radius = ((float) Math.min(this.px, this.py)) * 0.8f;
float incr = 360.0f / ((float) this.itemNames.size());
RectF myCircleBox = new RectF(((float) this.px) - this.radius, ((float) this.py) - this.radius, ((float) this.px) + this.radius, ((float) this.py) + this.radius);
RectF rectF = new RectF(((float) this.px) - (this.radius / 5.0f), ((float) this.py) - (this.radius * 1.1f), ((float) this.px) + (this.radius / 5.0f), ((float) this.py) - (this.radius * 0.6f));
rectF = new RectF((((float) this.px) - (this.radius / 5.0f)) + 5.0f, (((float) this.py) - (this.radius * 1.1f)) + 2.0f, (((float) this.px) + (this.radius / 5.0f)) - 5.0f, (((float) this.py) - (this.radius * 0.6f)) - 12.0f);
Log.e("@@rotationOffset", String.valueOf(rotationOffset));
double actualRotation = this.rotationOffset + ((double) ((incr / 2.0f) + 90.0f));
canvas.save();
canvas.rotate((float) this.rotationOffset, (float) this.px, (float) this.py);
for (i = 0; i < this.itemNames.size(); i++) {
Paint itemPaint;
switch (i) {
case MyDBAdapter.KEY_ID_COLUMN /*0*/:
itemPaint = this.item1Paint;
break;
case MyDBAdapter.NAME_COLUMN /*1*/:
itemPaint = this.item2Paint;
break;
case MyDBAdapter.NAME_REF /*2*/:
itemPaint = this.item3Paint;
break;
case 3:
itemPaint = this.item4Paint;
break;
case 4:
itemPaint = this.item5Paint;
break;
case 5:
itemPaint = this.item6Paint;
break;
case 6:
itemPaint = this.item7Paint;
break;
case 7:
itemPaint = this.item8Paint;
break;
case 8:
itemPaint = this.item9Paint;
break;
case 9:
itemPaint = this.item10Paint;
break;
case 10:
itemPaint = this.item11Paint;
break;
case 11:
itemPaint = this.item12Paint;
break;
case 12:
itemPaint = this.item13Paint;
break;
case 13:
itemPaint = this.item14Paint;
break;
case 14:
itemPaint = this.item15Paint;
break;
default:
itemPaint = this.item1Paint;
break;
}
offSet = ((float) i) * (-incr);
canvas.save();
canvas.rotate(offSet, (float) this.px, (float) this.py);
canvas.drawArc(myCircleBox, (-incr) / 2.0f, incr, true, itemPaint);
this.item = ((String) this.itemNames.get(i)).toString();
this.itemLength = (float) ((int) this.textPaint.measureText(this.item));
if (((double) this.itemLength) > ((double) this.radius) * 0.8d) {
this.item = this.item.substring(0, (int) (((double) this.item.length()) * ((((double) this.radius) * 0.8d) / ((double) ((int) this.textPaint.measureText(this.item))))));
this.itemLength = (float) ((int) this.textPaint.measureText(this.item));
}
// canvas.drawText(this.item, (((float) this.px) + (this.radius / 2.0f)) - (this.itemLength / 2.0f), (float) (this.py + ((int) (((double) this.textPaint.measureText("yY")) / 2.5d))), this.textPaint);
Bitmap icon = BitmapFactory.decodeResource(getResources(),R.drawable.ic_laun);
//drawImage(canvas, tempAngle,icon );
tempAngle += sweepAngle;
canvas.restore();
}
for (i = 0; i < this.itemNames.size(); i++) {
offSet = ((float) i) * incr;
canvas.save();
canvas.rotate(offSet, (float) this.px, (float) this.py);
canvas.save();
canvas.rotate(incr / 2.0f, (float) this.px, (float) this.py);
canvas.drawLine(((float) this.px) + this.radius, (float) this.py, (float) this.px, (float) this.py, this.markerPaint);
Bitmap icon =
BitmapFactory.decodeResource(getResources(),R.drawable.ic_laun);
drawImage(canvas, tempAngle,icon );
canvas.restore();
canvas.restore();
}
canvas.restore();
canvas.drawCircle((float) this.px, (float) this.py, this.radius, this.circlePaint);
canvas.drawCircle((float) this.px, (float) this.py, this.radius + (this.circlePaint.getStrokeWidth() * 0.5f), this.rimPaint);
canvas.drawCircle((float) this.px, (float) this.py, 2.0f, this.rimPaint);
canvas.drawCircle((float) this.px, (float) this.py, 1.0f, this.rimPaint);
canvas.drawArc(rectF, 250.0f, 40.0f, true, this.textPaint);
canvas.drawArc(rectF, 250.0f, 40.0f, true, this.pointerPaint);
if (actualRotation < 0.0d) {
actualRotation += 360.0d;
} else if (actualRotation > 360.0d) {
actualRotation -= 360.0d;
}
if (!(this.selected == -1 || this.selected == ((int) (actualRotation / ((double) incr))) || !Prefs.getMusic(getContext()) || this.resourcePlayer == null)) {
if (this.resourcePlayer.isPlaying()) {
this.resourcePlayer.seekTo(0);
} else {
this.resourcePlayer.start();
}
}
this.selected = (int) (actualRotation / ((double) incr));
if (this.lifted) {
this.winner = ((String) this.itemNames.get(this.selected)).toString();
}
canvas.drawText(this.winner, (float) (this.px - (((int) this.titlePaint.measureText(this.winner)) / 2)), (((float) this.py) + this.radius) + ((float) (getMeasuredWidth() / 10)), this.titlePaint);
canvas.drawText(this.listName, (float) (this.px - (((int) this.titlePaint.measureText(this.listName)) / 2)), (((float) this.py) - this.radius) - ((float) (getMeasuredWidth() / 18)), this.titlePaint);
if (this.lifted) {
long currentTimeMillis;
if (this.lastTheta > 0.0d) {
currentTimeMillis = System.currentTimeMillis();
this.currTime = currentTimeMillis;
this.timeDiff = currentTimeMillis - this.oldTime;
this.oldTime = this.currTime;
setRotation(getRotationNumber() + this.lastTheta);
this.lastTheta -= (double) (0.002f * ((float) this.timeDiff));
if (this.lastTheta <= 0.0d) {
this.lifted = false;
Log.e("@finalDone","finalDone"+getRotationNumber());
Log.e("@offset","finalDone"+offSet);
Intent intent=new Intent(mContext, HomeActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
mContext.startActivity(intent);
}
} else {
currentTimeMillis = System.currentTimeMillis();
this.currTime = currentTimeMillis;
this.timeDiff = currentTimeMillis - this.oldTime;
this.oldTime = this.currTime;
setRotation(getRotationNumber() + this.lastTheta);
this.lastTheta += (double) (0.002f * ((float) this.timeDiff));
if (this.lastTheta >= 0.0d) {
this.lifted = false;
Log.e("@finalDone","finalDone"+getRotationNumber());
Intent intent=new Intent(mContext, HomeActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK|Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP);
mContext.startActivity(intent);
}
}
invalidate();
}
}
}
private void drawImage(Canvas canvas, float tempAngle, Bitmap bitmap) {
//get every arc img width and angle
int mWheelItemssize=6;
int imgWidth = (int)radius / 6;
float angle = (float) ((tempAngle + 360 / mWheelItemssize / 2) * Math.PI / 180);
//calculate x and y
int x = (int) (center + (int)radius / 2 / 2 * Math.cos(angle));
int y = (int) (center + (int) radius / 2 / 2 * Math.sin(angle));
Rect rect = new Rect(x - imgWidth /2, y - imgWidth / 2, x + imgWidth / 2, y + imgWidth / 2);
Bitmap rotatedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), null, true);
canvas.drawBitmap(bitmap, null, rect, null);
}
private void drawImage1(Canvas canvas, float tmpAngle, Bitmap bitmap) {
int imgWidth = (int) (radius / itemNames.size());
float angle = (float) ((tmpAngle + 360 / itemNames.size() / 2) * Math.PI / 180);
int x = (int) (center + radius / 2 / 2 * Math.cos(angle));
int y = (int) (center + radius / 2 / 2 * Math.sin(angle));
Rect rect = new Rect(x - imgWidth/2, y - imgWidth/2, x + imgWidth/2, y + imgWidth/2);
canvas.drawBitmap(bitmap, null, rect, null);
}
void OnDestroy() {
if (this.resourcePlayer != null) {
this.resourcePlayer.release();
}
}
public void autoSpin(float seed) {
if (seed >= 20.0f) {
seed = 15.0f;
}
seed = 8.0f;
this.oldTime = System.currentTimeMillis();
this.currTime = System.currentTimeMillis();
Log.e("@@oldTime", String.valueOf(System.currentTimeMillis()));
Log.e("@@Random", String.valueOf((new Random().nextFloat())));
Log.e("@@Random", String.valueOf((new Random().nextFloat())));
int randomno=3;
this.lastTheta = (double) ((randomno * seed));
Log.e("@@lastTheta", String.valueOf(lastTheta));
this.lifted = true;
invalidate();
}
}
HomeActivity
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.autoSpinButton:
// wheelView.rotateWheelTo(wheelView,3);
autoSpinButton.setEnabled(false);
Log.e("@@@Seed", String.valueOf(20.0f * (320.0f / width)));
wheelView.autoSpin(5.0);
break;
}
}
主要布局
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.spin.wheel.widgets.WheelView
android:id="@+id/wheelView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/backrepeat"/>
<Button
android:id="@+id/autoSpinButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:text="SPIN" />
</RelativeLayout>
请帮助