1.MainActivity
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
2.MyLuckView
public class MyLuckView extends View implements View.OnClickListener {
private String[] contents = new String[]{"美 女", "女 神", "热 舞", "丰 满", "性 感", "知 性", "男 神", "感 性"};
public int[] colors = new int[]{Color.parseColor("#8EE5EE"), Color.parseColor("#FFD700"), Color.parseColor("#8EE5EE"), Color.parseColor("#FFD700"), Color.parseColor("#8EE5EE"), Color.parseColor("#FFD700"), Color.parseColor("#8EE5EE"), Color.parseColor("#FFD700")};
private Context mContext;
private Paint mPaint;
private int mWidth;
private String mStr = "start";
private int start=0;
//第二个参数：属性值的集合
public MyLuckView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
//画笔
mPaint = new Paint();
//监听事件
setOnClickListener(this);
}
//绘画
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
/* mPaint.setColor(Color.GREEN);
mPaint.setStyle(Paint.Style.STROKE);
//设置边缘锯齿
mPaint.setAntiAlias(true);
mPaint.setStrokeWidth(2);
Log.e(“width”, mWidth + “”);
canvas.drawCircle(mWidth / 2, mWidth / 2, mWidth / 2, mPaint);*/
//因为要画扇形 里面有个RectF
//因为那个园其实是占全屏的，所以我这个RectF的空间也是全屏
RectF rectF = new RectF(0, 0, mWidth, mWidth);
mPaint.setStyle(Paint.Style.FILL);
for (int i = 0; i < colors.length; i++) {
mPaint.setColor(colors[i]);
//起始角度
int startjd = i * 45;
canvas.drawArc(rectF, startjd, 45, true, mPaint);
}
//循环画字
//字体的颜色
mPaint.setColor(Color.BLACK);
//字体大小
mPaint.setTextSize(24);
//循环添加
for (int i = 0; i < contents.length; i++) {
int startjd = i * 45;
//Path 代表路径 想怎么画就怎么画
Path path = new Path();
path.addArc(rectF, startjd, 45);
// 循环画字 路径 30代表左右 50代表上下 画笔
canvas.drawTextOnPath(contents[i], path, 30, 50, mPaint);
}
/*//内圆
mPaint.setColor(Color.GREEN);
//确定圆心点 半径
canvas.drawCircle(mWidth / 2, mWidth / 2, 50, mPaint);
*/
//在最中心的位置画一个start （150,150） 我们要得到我们写的字的高和宽
/* mPaint.setColor(Color.BLACK);
mPaint.setTextSize(24);
Rect rect = new Rect();
mPaint.getTextBounds(mStr, 0, mStr.length(), rect);
int width = rect.width();
int height = rect.height();
canvas.drawText(mStr, mWidth / 2 - width / 2, mWidth / 2 + height / 2, mPaint);*/
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(300, 300);
//得到测量过后的高和宽
mWidth = getMeasuredWidth();
}
@Override
public void onClick(View v) {
// Toast.makeText(mContext, "memeda", Toast.LENGTH_SHORT).show();
//随机数
Random random = new Random();
int du = random.nextInt(1000);
RotateAnimation rotateAnimation = new RotateAnimation(start, du+360, mWidth / 2, mWidth / 2);
rotateAnimation.setDuration(1000);
//保留最后执行完的位置
rotateAnimation.setFillAfter(true);
startAnimation(rotateAnimation);
start =du%360;
}
}
3.布局
</RelativeLayout 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”
tools:context=".MainActivity">
<com.bawei.wangyaxiao.choujiang.weight.MyLuckView
android:layout_centerInParent=“true”
android:layout_width=“match_parent”
android:layout_height=“match_parent” />
</ImageView
android:layout_width=“80dp”
android:layout_height=“80dp”
android:layout_centerInParent=“true”
android:src="@mipmap/abc"/>
<//RelativeLayout>
2222222222222圆环
1.MainActivity
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
2.主布局
<android.support.constraint.ConstraintLayout 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”
tools:context=".MainActivity">
<com.bawei.wangyaxiao.yuan.demo.MyView
android:layout_width=“match_parent”
android:layout_height=“match_parent”
app:startAngle=“30”
app:sweepAngle=“240”
app:text=“hehe”
app:textSize=“30sp”
app:textColor="@color/colorPrimaryDark"
app:circleColor="@color/colorPrimary"
app:arcColor="@color/colorAccent"
/>
</android.support.constraint.ConstraintLayout>
3.MyView
public class MyView extends View {
private int circleColor;
private int textColor;
private int arcColor;
private float textSize;
private int sweepAngle;
private int startAngle;
private String text;
private int mCircleXY; //注意这个是int类型
private float mRadius;
private Paint mCirclePaint;
private RectF mRectF;
private Paint mArcPaint;
private Paint mTextPaint;
//属性值的集合
public MyView(Context context, AttributeSet attrs) {
super(context, attrs);
//初始化的时候获取自定义的属性，获取的是主布局中自己赋给自定义属性的值，第二个参数是如果你没有赋值，就是用默认值。
TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.MyView);
if(ta!=null){
circleColor =ta.getColor(R.styleable.MyView_circleColor,0);
arcColor =ta.getColor(R.styleable.MyView_arcColor,0);
textColor =ta.getColor(R.styleable.MyView_textColor,0);
textSize =ta.getDimension(R.styleable.MyView_textSize,0);
text =ta.getString(R.styleable.MyView_text);
startAngle =ta.getInt(R.styleable.MyView_startAngle,0);
sweepAngle =ta.getInt(R.styleable.MyView_sweepAngle,90);
ta.recycle();//释放资源
}
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
drawSth(canvas);
}
private void drawSth(Canvas canvas){
//初始化方法
init();
//画一个圆形，第一个是参数是圆形的x坐标，第二个参数是圆形的y坐标，第三个是圆的半径，第四个是画笔。
canvas.drawCircle(mCircleXY, mCircleXY, mRadius, mCirclePaint);
//绘制一个扇形，第一个参数是确定外切矩形的范围，（即位置和大小），第二个是扇形的起始角度，第三个是结束角度，第四个（false）是代表空心扇形,true代表充满的扇形，最后一个是画笔
canvas.drawArc(mRectF,startAngle,sweepAngle,false, mArcPaint);
//绘制一个字符串，第一个字符串是自定义属性自己赋值的字符串，第二个字符串的x轴位置，第三个是文字的y轴位置，最后是画笔。
canvas.drawText(text, mCircleXY, mCircleXY +textSize/4, mTextPaint);
}
private void init(){
//获取当前控件的宽和高
int length=Math.min(getWidth(),getHeight());
//得到当前控件一半的大小
mCircleXY=length/2;
mRadius=length*0.5f/2;
//设置画笔的抗锯齿
mCirclePaint=new Paint(Paint.ANTI_ALIAS_FLAG);
mCirclePaint.setColor(circleColor);
mRectF=new RectF(length*0.1f,length*0.1f,length*0.9f,length*0.9f);
mArcPaint=new Paint(Paint.ANTI_ALIAS_FLAG);
mArcPaint.setColor(arcColor);
//设置画笔风格（空心或实心）
mArcPaint.setStyle(Paint.Style.STROKE);
//设置空心边框的宽度
mArcPaint.setStrokeWidth((getWidth()*0.1f));
mTextPaint=new Paint(Paint.ANTI_ALIAS_FLAG);
mTextPaint.setTextSize(textSize);
mTextPaint.setColor(textColor);
//设置文本居中
mTextPaint.setTextAlign(Paint.Align.CENTER);
}
}
4.values下的attrs.xml
<//resources>
<!/–给自定义控件设置自定义属性–>
</!–name就是自己起的名字，可以是a,是b,但最好见名知意，format的意思就是属性类型的意思–>
</attr name=“textSize” format=“dimension”/>
</attr name=“text” format=“string”/>
</attr name=“circleColor” format=“color”/>
</attr name=“arcColor” format=“color”/>
</attr name=“textColor” format=“color”/>
</attr name=“startAngle” format=“integer” />
</attr name=“sweepAngle” format=“integer” />
</declare-styleable>
/!–
Ⅰ、textSize——对应中间文本文字的大小
Ⅱ、text——对应中间文本
Ⅲ、circleColor——对应内圆的颜色
Ⅳ、arcColor——对应外环的颜色
Ⅴ、textColor——对应文本的颜色
Ⅵ、startAngle——对应外环的起始角度
Ⅶ、sweepAngle——对应外环扫描角度
–>
<//resources>