midi-android/moduleUtil/src/main/java/com/xscm/moduleutil/widget/GifAvatarOvalView.java

package com.xscm.moduleutil.widget;

import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Outline;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewOutlineProvider;

import androidx.annotation.ColorInt;
import androidx.annotation.DimenRes;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.widget.AppCompatImageView;

import com.xscm.moduleutil.R;


public class GifAvatarOvalView extends AppCompatImageView {
    public GifAvatarOvalView(@NonNull Context context) {
        super(context);
        init(null);
    }

    public GifAvatarOvalView(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        init(attrs);
    }

    public GifAvatarOvalView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(attrs);
    }

    protected int mWidth;
    protected int mHeight;
    protected float mRadius;

    public static final float DEFAULT_BORDER_WIDTH = 0f;
    public static final int DEFAULT_BORDER_COLOR = Color.WHITE;
    protected float mBorderWidth = DEFAULT_BORDER_WIDTH;
    protected ColorStateList mBorderColor = ColorStateList.valueOf(DEFAULT_BORDER_COLOR);
    protected RectF mBorderRect = new RectF();
    protected Paint mBorderPaint;

    private void init(@Nullable AttributeSet attrs) {
        if (attrs != null) {
            TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.GifAvatarOvalView);
            mBorderWidth = a.getDimensionPixelSize(R.styleable.GifAvatarOvalView_gav_border_width, -1);
            if (mBorderWidth < 0) {
                mBorderWidth = DEFAULT_BORDER_WIDTH;
            }
            mBorderColor = a.getColorStateList(R.styleable.GifAvatarOvalView_gav_border_color);
            if (mBorderColor == null) {
                mBorderColor = ColorStateList.valueOf(DEFAULT_BORDER_COLOR);
            }
            a.recycle();
        }
        mBorderPaint = new Paint();
        mBorderPaint.setStyle(Paint.Style.STROKE);
        mBorderPaint.setAntiAlias(true);
        mBorderPaint.setColor(mBorderColor.getDefaultColor());
        mBorderPaint.setStrokeWidth(mBorderWidth);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        mWidth = mHeight = Math.min(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.getSize(heightMeasureSpec));
        mRadius = mWidth / 2.0f;
        mBorderRect.set(0, 0, mWidth, mHeight);
        setMeasuredDimension(mWidth, mHeight);
    }

    @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        super.onLayout(changed, left, top, right, bottom);
        setClipToOutline(true);
        setOutlineProvider(new ViewOutlineProvider() {
            @Override
            public void getOutline(View view, Outline outline) {
                Rect selfRect = new Rect(0, 0, mWidth, mHeight);
                outline.setRoundRect(selfRect, mRadius);
            }
        });
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        if (mBorderWidth > 0) {
            canvas.drawOval(mBorderRect, mBorderPaint);
        }
    }

    public void setBorderWidth(@DimenRes int resId) {
        setBorderWidth(getResources().getDimension(resId));
    }

    public void setBorderWidth(float width) {
        if (mBorderWidth == width) { return; }
        mBorderWidth = width;
        mBorderPaint.setStrokeWidth(mBorderWidth);
        invalidate();
    }

    public void setBorderColor(@ColorInt int color) {
        setBorderColor(ColorStateList.valueOf(color));
    }

    public void setBorderColor(ColorStateList colors) {
        if (mBorderColor.equals(colors)) { return; }
        mBorderColor = (colors != null) ? colors : ColorStateList.valueOf(DEFAULT_BORDER_COLOR);
        mBorderPaint.setColor(mBorderColor.getDefaultColor());
        if (mBorderWidth > 0) {
            invalidate();
        }
    }
}