Android Studio多moduleAAR示例

package org.example.widgets; import org.example.R; import android.content.Context; import android.content.res.ColorStateList; import android.content.res.TypedArray; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PorterDuff; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; import android.util.AttributeSet; import android.view.View; import android.widget.TextView; public class TagTextView extends TextView { private static final int DEFAULT_BORDER_WIDTH = 0; private static final int DEFAULT_RADIUS_SIZE = 0; private static final int DEFAULT_BORDER_COLOR = Color.BLACK; private float mRadius; private ColorStateList mBorderColor = ColorStateList.valueOf(DEFAULT_BORDER_COLOR); private float mBorderWidth = DEFAULT_BORDER_WIDTH; public TagTextView(Context context) { this(context, null); } public TagTextView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public TagTextView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); TypedArray ta = context.getTheme().obtainStyledAttributes(attrs, R.styleable.TagTextView, defStyleAttr, 0); mRadius = ta.getDimensionPixelSize(R.styleable.TagTextView_border_radius, DEFAULT_RADIUS_SIZE); ta.recycle(); init(); } /** * 初始化View * * @throws IllegalStateException */ @SuppressWarnings("deprecation") private void init() { // 关闭硬件加速，否则会导致Xfermode混合成的透明背景为黑色 if (android.os.Build.VERSION.SDK_INT >= 11) { setLayerType(View.LAYER_TYPE_SOFTWARE, null); } } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (mRadius > 0) { Bitmap bitmap = generateMaskBitmap(); Paint bitmapPaint = new Paint(); bitmapPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN)); canvas.drawBitmap(bitmap, 0f, 0f, bitmapPaint); bitmap.recycle(); } // 画边框 if (mBorderWidth > 0) { Paint borderPaint = new Paint(); borderPaint.setStyle(Paint.Style.STROKE); borderPaint.setAntiAlias(true); borderPaint.setColor(mBorderColor.getColorForState(getDrawableState(), DEFAULT_BORDER_COLOR)); borderPaint.setStrokeWidth(mBorderWidth); RectF borderRect = new RectF(0, 0, getWidth(), getHeight()); // 向内偏移边框的位置，否则会超出画布 borderRect.inset(mBorderWidth / 2, mBorderWidth / 2); canvas.drawRoundRect(borderRect, mRadius, mRadius, borderPaint); } } /** * 生成一张圆角矩形的掩盖图片 * * @return Bitmap */ public Bitmap generateMaskBitmap() { Bitmap bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888); Canvas bitmapCanvas = new Canvas(bitmap); RectF r = new RectF(0, 0, getWidth(), getHeight()); Rect rect = new Rect(0, 0, getWidth(), getHeight()); Paint bitmapPaint = new Paint(); bitmapPaint.setAlpha(0); bitmapPaint.setColor(Color.TRANSPARENT); bitmapCanvas.drawRect(rect, bitmapPaint); bitmapPaint.reset(); bitmapPaint.setStyle(Paint.Style.FILL); bitmapPaint.setAntiAlias(true); bitmapPaint.setColor(Color.WHITE); bitmapCanvas.drawRoundRect(r, mRadius, mRadius, bitmapPaint); return bitmap; } /** * 设置边框的颜色 * * @param colors */ public void setBorderColor(ColorStateList colors) { if (mBorderColor.equals(colors)) { return; } if (mBorderWidth > 0) { invalidate(); } } }