parent
bc6326d7e0
commit
4899a76909
@ -0,0 +1,240 @@
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package wificar;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.RectF;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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import androidx.annotation.Nullable;
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import java.io.OutputStream;
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public class RockerView extends View{
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Paint backPaint = new Paint(); // 背景画笔
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Paint bubblePaint = new Paint(); // 气泡画笔
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Paint rectfPaint = new Paint();
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float bubbleX = 250, bubbleY = 300; // 定义气泡的位置
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float backX = 250, backY = 300; // 背景圆的位置
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int radiusBack = 200, radiusBubble = 100; // 定义背景圆以及气泡的半径
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RectF mRectF = new RectF(backX-radiusBack,backY-radiusBack,backX+radiusBack,backY+radiusBack);
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Context mContext;
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OutputStream socketWriter;
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String status = "STOP";
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public RockerView(Context context, @Nullable AttributeSet attrs) {
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super(context, attrs);
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this.mContext = context;
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}
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private void initPaint() {
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backPaint.setAntiAlias(true);
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backPaint.setColor(Color.parseColor("blue"));
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bubblePaint.setAntiAlias(true);
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bubblePaint.setColor(Color.parseColor("red"));
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rectfPaint.setAntiAlias(true);
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rectfPaint.setColor(Color.parseColor("red"));
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rectfPaint.setAlpha(144);
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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initPaint();
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canvas.drawCircle(backX, backY, radiusBack, backPaint);
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switch (status) {
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case "GO":
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// TODO Auto-generated method stub
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try {
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socketWriter.write(new byte[]{(byte) 0xff, (byte) 0x00, (byte) 0x01, (byte) 0x00, (byte) 0xff});
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socketWriter.flush();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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canvas.drawArc(mRectF, -45, -90, true, rectfPaint);
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break;
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case "RETURN":
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// TODO Auto-generated method stub
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try {
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socketWriter.write(new byte[]{(byte) 0xff, (byte) 0x00, (byte) 0x02, (byte) 0x00, (byte) 0xff});
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socketWriter.flush();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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canvas.drawArc(mRectF, 45, 90, true, rectfPaint);
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break;
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case "LEFT":
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// TODO Auto-generated method stub
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try {
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socketWriter.write(new byte[]{(byte) 0xff, (byte) 0x00, (byte) 0x04, (byte) 0x00, (byte) 0xff});
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socketWriter.flush();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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canvas.drawArc(mRectF, 135, 90, true, rectfPaint);
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break;
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case "RIGHT":
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// TODO Auto-generated method stub
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try {
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socketWriter.write(new byte[]{(byte) 0xff, (byte) 0x00, (byte) 0x03, (byte) 0x00, (byte) 0xff});
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socketWriter.flush();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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canvas.drawArc(mRectF, -45, 90, true, rectfPaint);
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break;
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case "STOP":
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// TODO Auto-generated method stub
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try {
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socketWriter.write(new byte[]{(byte) 0xff, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0xff});
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socketWriter.flush();
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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rectfPaint.setAlpha(0);
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canvas.drawArc(mRectF, -90, 360, true, rectfPaint);
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break;
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}
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canvas.drawCircle(bubbleX, bubbleY, radiusBubble, bubblePaint);
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}
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private float getDistance(float x1, float y1, float x2, float y2) {
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float dis;
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dis = (float) Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
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return dis;
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}
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private void getOrientation(float x,float y){
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if (y<backY&&(x<backX+backX*0.707&&x>backY-backY*0.707)){
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status = "GO";
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}else if (x>backX&&(y<backY+backY*0.707&&y>backY-backY*0.707)){
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status = "RIGHT";
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}else if (y>backY&&(x<backX+backX*0.707&&x>backY-backY*0.707)){
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status = "RETURN";
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}else if (x<backX&&(y<backY+backY*0.707&&y>backY-backY*0.707)){
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status = "LEFT";
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}else {
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status = "STOP";
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}
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}
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private float[] getXY(float x1, float y1, float x2, float y2, float dis) {
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float[] xAndy = new float[2];
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float scaleDis;
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float xDis;
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float yDis;
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/*
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* 表示在第一象限之内
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*/
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if (x1 > x2 && y1 < y2) {
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scaleDis = radiusBack / dis;
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xDis = Math.abs(x1 - x2);
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yDis = Math.abs(y1 - y2);
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xAndy[0] = x2 + xDis * scaleDis;
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xAndy[1] = y2 - yDis * scaleDis;
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}
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/*
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* 表示在第二象限之内
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*/
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else if (x1 < x2 && y1 < y2) {
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scaleDis = radiusBack / dis;
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xDis = Math.abs(x1 - x2);
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yDis = Math.abs(y1 - y2);
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xAndy[0] = x2 - xDis * scaleDis;
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xAndy[1] = y2 - yDis * scaleDis;
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}
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/*
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*表示在第三象限之内
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*/
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else if (x1 < x2 && y1 > y2) {
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scaleDis = radiusBack / dis;
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xDis = Math.abs(x1 - x2);
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yDis = Math.abs(y1 - y2);
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xAndy[0] = x2 - xDis * scaleDis;
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xAndy[1] = y2 + yDis * scaleDis;
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}
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/*
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* 表示在第四象限之内
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*/
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else if (x1 > x2 && y1 > y2) {
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scaleDis = radiusBack / dis;
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xDis = Math.abs(x1 - x2);
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yDis = Math.abs(y1 - y2);
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xAndy[0] = x2 + xDis * scaleDis;
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xAndy[1] = y2 + yDis * scaleDis;
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}
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/*
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* 角度为零度
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*/
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else if (x1 > x2 && y1 == y2) {
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xAndy[0] = x2 + radiusBack;
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xAndy[1] = y2;
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}
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/*
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* 角度为90度
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*/
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else if (x1 == x2 && y1 < y2) {
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xAndy[0] = x2;
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xAndy[1] = y2 - radiusBack;
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}
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/*
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* 角度为180度
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*/
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else if (x1 < x2 && y1 == y2) {
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xAndy[0] = x2 - radiusBack;
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xAndy[1] = y2;
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}
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/*
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* 表示为270度
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*/
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else if (x1 == x2 && y1 > y2) {
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xAndy[0] = x2;
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xAndy[1] = y2 + radiusBack;
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}
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return xAndy;
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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switch (event.getAction()) {
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case MotionEvent.ACTION_MOVE:
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float x = (int) event.getX();
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float y = (int) event.getY();
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if (getDistance(x, y, backX, backY) < radiusBack) {
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bubbleX = x;
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bubbleY = y;
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} else if (getDistance(x, y, backX, backY) >= radiusBack) {
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float xAndy[];
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xAndy = getXY(x, y, backX, backY, getDistance(x, y, backX, backY));
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bubbleX = xAndy[0];
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bubbleY = xAndy[1];
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getOrientation(x,y);
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}
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break;
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case MotionEvent.ACTION_UP:
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bubbleX = backX;
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bubbleY = backY;
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status = "STOP";
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break;
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}
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invalidate();
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return true;
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}
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}
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@ -0,0 +1,15 @@
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<?xml version="1.0" encoding="utf-8"?>
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<shape
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xmlns:android="http://schemas.android.com/apk/res/android"
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>
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<corners
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android:radius="100dp"
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/>
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<solid
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android:color="#1EFFFFFF"
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/>
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<size
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android:width="100dp"
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android:height="100dp"
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/>
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</shape>
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@ -0,0 +1,15 @@
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<?xml version="1.0" encoding="utf-8"?>
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<shape
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xmlns:android="http://schemas.android.com/apk/res/android"
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>
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<corners
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android:radius="100dp"
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/>
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<solid
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android:color="#6BFFFFFF"
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/>
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<size
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android:width="50dp"
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android:height="50dp"
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/>
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</shape>
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Loading…
Reference in new issue