自定义view进度条加强版

xml布局

<com.example.administrator.exam.MyCustomView
       android:id="@+id/myview"
       app:out_circle_width="200"
       app:out_circle_color="#888888"
       android:layout_centerInParent="true"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:layout_weight="1"
       />

attrs

    <attr name="out_circle_width" format="integer" />
    <attr name="out_circle_color" format="color" />


    <declare-styleable name="MyCustomView">
        <attr name="out_circle_width"  />
        <attr name="out_circle_color" />
    </declare-styleable>

MyCustomView

public class MyCustomView extends View{

    private  Paint out_mPaint,in_mPaint,text_mPaint;
    private int out_circle_color;
    private float out_circle_width;
    private float into_circle_width=0;
    private String schedule="0";
    public float bitmapX;
    public float bitmapY;

    public void setSchedule(String schedule) {
        this.schedule = schedule;
    }

    public void setInto_circle_width(float into_circle_width) {
        this.into_circle_width = into_circle_width;
    }



    public MyCustomView(Context context) {
        this(context,null);
    }

    public MyCustomView(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs,0);


        init(attrs);
    }

    public MyCustomView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.MyCustomView, defStyleAttr, 0);
        int n = a.getIndexCount();
        for (int i = 0; i < n; i++)
        {
            int attr = a.getIndex(i);
            switch (attr)
            {
                case R.styleable.MyCustomView_out_circle_color:
                    out_circle_color = a.getColor(attr,Color.BLACK);
                    break;
                case R.styleable.MyCustomView_out_circle_width:
                    // 默认颜色设置为黑色
                    out_circle_width = a.getInteger(attr, 0);
                    break;
            }
        }
        a.recycle();
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        Log.e("1323", MeasureSpec.getSize(widthMeasureSpec) / 2+"" );
        bitmapX=MeasureSpec.getSize(widthMeasureSpec) / 2 ;
        bitmapY=MeasureSpec.getSize(heightMeasureSpec) / 2;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        canvas.translate(bitmapX, bitmapY);
        canvas.drawCircle(0,0,out_circle_width,out_mPaint);          // 绘制两个圆形
        canvas.drawCircle(0,0,into_circle_width,in_mPaint);
        canvas.drawText(schedule,0,50,text_mPaint);
    }

    private void setoutPaint() {
        out_mPaint = new Paint();
        out_mPaint.setAntiAlias(true); //消除锯齿
        out_mPaint.setStrokeWidth(30);
        out_mPaint.setColor(out_circle_color);
        out_mPaint.setStyle(Paint.Style.STROKE); //绘制空心圆
    }
    private void setinPaint() {
        in_mPaint = new Paint();
        in_mPaint.setAntiAlias(true); //消除锯齿
        in_mPaint.setStrokeWidth(30);
        in_mPaint.setColor(Color.GREEN);
    }
    private void setTextPaint() {
        text_mPaint = new Paint();
        text_mPaint.setTextAlign(Paint.Align.CENTER);
        text_mPaint.setAntiAlias(true); //消除锯齿
        text_mPaint.setStrokeWidth(5);
        text_mPaint.setTextSize(100);
        text_mPaint.setColor(Color.GRAY);
    }


    public void init(AttributeSet attrs){
        setoutPaint();
        setinPaint();
        setTextPaint();
    }
}

MainActivity

public class MainActivity extends AppCompatActivity {
    public float i = 0;

    private MyCustomView view;
    private Handler h = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            int aaaa = (int) i;
            if(aaaa==100){
                t.cancel();
                setViewtouch(view);
                play.setEnabled(true);
            }
            view.setSchedule(aaaa+"%");
            view.setInto_circle_width(aaaa*2);
            view.invalidate();

            Log.e("sssss", "handleMessage: ");
        }
    };
    private Timer t;
    private Button play;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        view = (MyCustomView) findViewById(R.id.myview);
        play = (Button) findViewById(R.id.play);
    }
    public void play(View view){
        i=0;
        t = new Timer();
        t.schedule(new TimerTask() {
            @Override
            public void run() {
                i += 0.2;
                h.sendEmptyMessage(0);
            }
        },10,10);
        play.setEnabled(false);

    }

    private void setViewtouch(final MyCustomView view) {
        view.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                view.bitmapX = event.getX();
                view.bitmapY = event.getY();
                view.invalidate();
                return true;
            }
        });
    }

    @Override
    protected void onDestroy() {
        if(t!=null){
            t.cancel();
        }
        super.onDestroy();

    }
}