安卓圆形头像，可选择任意图片(图片的不同形状)

Android设置图片不同的显示图形

代码

package de.hdodenhof.circleimageview;
import edu.njupt.zhb.main.R;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

public class CircleImageView extends ImageView {

    private static final ScaleType SCALE_TYPE = ScaleType.CENTER_CROP;

    private static final Bitmap.Config BITMAP_CONFIG = Bitmap.Config.ARGB_8888;
    private static final int COLORDRAWABLE_DIMENSION = 1;

    private static final int DEFAULT_BORDER_WIDTH = 0;
    private static final int DEFAULT_BORDER_COLOR = Color.BLACK;

    private final RectF mDrawableRect = new RectF();
    private final RectF mBorderRect = new RectF();

    private final Matrix mShaderMatrix = new Matrix();
    private final Paint mBitmapPaint = new Paint();
    private final Paint mBorderPaint = new Paint();

    private int mBorderColor = DEFAULT_BORDER_COLOR;
    private int mBorderWidth = DEFAULT_BORDER_WIDTH;

    private Bitmap mBitmap;
    private BitmapShader mBitmapShader;
    private int mBitmapWidth;
    private int mBitmapHeight;

    private float mDrawableRadius;
    private float mBorderRadius;

    private boolean mReady;
    private boolean mSetupPending;

    public CircleImageView(Context context) {
        super(context);
    }

    public CircleImageView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public CircleImageView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        super.setScaleType(SCALE_TYPE);

        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView, defStyle, 0);

        mBorderWidth = a.getDimensionPixelSize(R.styleable.CircleImageView_border_width, DEFAULT_BORDER_WIDTH);
        mBorderColor = a.getColor(R.styleable.CircleImageView_border_color, DEFAULT_BORDER_COLOR);

        a.recycle();

        mReady = true;

        if (mSetupPending) {
            setup();
            mSetupPending = false;
        }
    }

    @Override
    public ScaleType getScaleType() {
        return SCALE_TYPE;
    }

    @Override
    public void setScaleType(ScaleType scaleType) {
        if (scaleType != SCALE_TYPE) {
            throw new IllegalArgumentException(String.format("ScaleType %s not supported.", scaleType));
        }
    }

    @Override
    protected void onDraw(Canvas canvas) {
        if (getDrawable() == null) {
            return;
        }

        canvas.drawCircle(getWidth() / 2, getHeight() / 2, mDrawableRadius, mBitmapPaint);
        canvas.drawCircle(getWidth() / 2, getHeight() / 2, mBorderRadius, mBorderPaint);
    }

    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        setup();
    }

    public int getBorderColor() {
        return mBorderColor;
    }

    public void setBorderColor(int borderColor) {
        if (borderColor == mBorderColor) {
            return;
        }

        mBorderColor = borderColor;
        mBorderPaint.setColor(mBorderColor);
        invalidate();
    }

    public int getBorderWidth() {
        return mBorderWidth;
    }

    public void setBorderWidth(int borderWidth) {
        if (borderWidth == mBorderWidth) {
            return;
        }

        mBorderWidth = borderWidth;
        setup();
    }

    @Override
    public void setImageBitmap(Bitmap bm) {
        super.setImageBitmap(bm);
        mBitmap = bm;
        setup();
    }

    @Override
    public void setImageDrawable(Drawable drawable) {
        super.setImageDrawable(drawable);
        mBitmap = getBitmapFromDrawable(drawable);
        setup();
    }

    @Override
    public void setImageResource(int resId) {
        super.setImageResource(resId);
        mBitmap = getBitmapFromDrawable(getDrawable());
        setup();
    }

    private Bitmap getBitmapFromDrawable(Drawable drawable) {
        if (drawable == null) {
            return null;
        }

        if (drawable instanceof BitmapDrawable) {
            return ((BitmapDrawable) drawable).getBitmap();
        }

        try {
            Bitmap bitmap;

            if (drawable instanceof ColorDrawable) {
                bitmap = Bitmap.createBitmap(COLORDRAWABLE_DIMENSION, COLORDRAWABLE_DIMENSION, BITMAP_CONFIG);
            } else {
                bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), BITMAP_CONFIG);
            }

            Canvas canvas = new Canvas(bitmap);
            drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
            drawable.draw(canvas);
            return bitmap;
        } catch (OutOfMemoryError e) {
            return null;
        }
    }

    private void setup() {
        if (!mReady) {
            mSetupPending = true;
            return;
        }

        if (mBitmap == null) {
            return;
        }

        mBitmapShader = new BitmapShader(mBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);

        mBitmapPaint.setAntiAlias(true);
        mBitmapPaint.setShader(mBitmapShader);

        mBorderPaint.setStyle(Paint.Style.STROKE);
        mBorderPaint.setAntiAlias(true);
        mBorderPaint.setColor(mBorderColor);
        mBorderPaint.setStrokeWidth(mBorderWidth);

        mBitmapHeight = mBitmap.getHeight();
        mBitmapWidth = mBitmap.getWidth();

        mBorderRect.set(0, 0, getWidth(), getHeight());
        mBorderRadius = Math.min((mBorderRect.height() - mBorderWidth) / 2, (mBorderRect.width() - mBorderWidth) / 2);

        mDrawableRect.set(mBorderWidth, mBorderWidth, mBorderRect.width() - mBorderWidth, mBorderRect.height() - mBorderWidth);
        mDrawableRadius = Math.min(mDrawableRect.height() / 2, mDrawableRect.width() / 2);

        updateShaderMatrix();
        invalidate();
    }

    private void updateShaderMatrix() {
        float scale;
        float dx = 0;
        float dy = 0;

        mShaderMatrix.set(null);

        if (mBitmapWidth * mDrawableRect.height() > mDrawableRect.width() * mBitmapHeight) {
            scale = mDrawableRect.height() / (float) mBitmapHeight;
            dx = (mDrawableRect.width() - mBitmapWidth * scale) * 0.5f;
        } else {
            scale = mDrawableRect.width() / (float) mBitmapWidth;
            dy = (mDrawableRect.height() - mBitmapHeight * scale) * 0.5f;
        }

        mShaderMatrix.setScale(scale, scale);
        mShaderMatrix.postTranslate((int) (dx   0.5f)   mBorderWidth, (int) (dy   0.5f)   mBorderWidth);

        mBitmapShader.setLocalMatrix(mShaderMatrix);
    }

}

资源下载

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资源文件列表

CircleImageVIewDemo/CircleImageVIewDemo/.classpath , 466
CircleImageVIewDemo/CircleImageVIewDemo/.project , 822
CircleImageVIewDemo/CircleImageVIewDemo/AndroidManifest.xml , 813
CircleImageVIewDemo/CircleImageVIewDemo/bin/AndroidManifest.xml , 813
CircleImageVIewDemo/CircleImageVIewDemo/bin/CircleImageVIewDemo.apk , 326503
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/de/.DS_Store , 6148
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/de/hdodenhof/.DS_Store , 6148
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/de/hdodenhof/circleimageview/CircleImageView.class , 7573
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/BuildConfig.class , 345
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/MainActivity.class , 517
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$attr.class , 432
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$color.class , 420
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$dimen.class , 399
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$drawable.class , 463
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$layout.class , 394
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$string.class , 398
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$style.class , 431
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R$styleable.class , 616
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes/edu/njupt/zhb/main/R.class , 689
CircleImageVIewDemo/CircleImageVIewDemo/bin/classes.dex , 693784
CircleImageVIewDemo/CircleImageVIewDemo/bin/dexedLibs/android-support-v4-78d8a0389059f779e0cdbe114035791b.jar , 232610
CircleImageVIewDemo/CircleImageVIewDemo/bin/dexedLibs/android-support-v4-e8c7f426b743870b2875a8ce4de13f6a.jar , 232610
CircleImageVIewDemo/CircleImageVIewDemo/bin/jarlist.cache , 120
CircleImageVIewDemo/CircleImageVIewDemo/bin/res/crunch/drawable-hdpi/ic_launcher.png , 5964
CircleImageVIewDemo/CircleImageVIewDemo/bin/res/crunch/drawable-mdpi/ic_launcher.png , 3112
CircleImageVIewDemo/CircleImageVIewDemo/bin/res/crunch/drawable-xhdpi/ic_launcher.png , 9355
CircleImageVIewDemo/CircleImageVIewDemo/bin/res/crunch/drawable-xxhdpi/ic_launcher.png , 17889
CircleImageVIewDemo/CircleImageVIewDemo/bin/resources.ap_ , 87058
CircleImageVIewDemo/CircleImageVIewDemo/gen/edu/njupt/zhb/main/BuildConfig.java , 160
CircleImageVIewDemo/CircleImageVIewDemo/gen/edu/njupt/zhb/main/R.java , 5562
CircleImageVIewDemo/CircleImageVIewDemo/ic_launcher-web.png , 51394
CircleImageVIewDemo/CircleImageVIewDemo/libs/android-support-v4.jar , 621451
CircleImageVIewDemo/CircleImageVIewDemo/proguard-project.txt , 781
CircleImageVIewDemo/CircleImageVIewDemo/project.properties , 563
CircleImageVIewDemo/CircleImageVIewDemo/res/drawable-hdpi/demo.jpg , 30451
CircleImageVIewDemo/CircleImageVIewDemo/res/drawable-hdpi/ic_launcher.png , 7658
CircleImageVIewDemo/CircleImageVIewDemo/res/drawable-hdpi/lena.jpg , 15780
CircleImageVIewDemo/CircleImageVIewDemo/res/drawable-mdpi/ic_launcher.png , 3777
CircleImageVIewDemo/CircleImageVIewDemo/res/drawable-xhdpi/ic_launcher.png , 12516
CircleImageVIewDemo/CircleImageVIewDemo/res/drawable-xxhdpi/ic_launcher.png , 24777
CircleImageVIewDemo/CircleImageVIewDemo/res/layout/main.xml , 1414
CircleImageVIewDemo/CircleImageVIewDemo/res/values/attrs.xml , 243
CircleImageVIewDemo/CircleImageVIewDemo/res/values/colors.xml , 148
CircleImageVIewDemo/CircleImageVIewDemo/res/values/dimens.xml , 110
CircleImageVIewDemo/CircleImageVIewDemo/res/values/strings.xml , 84
CircleImageVIewDemo/CircleImageVIewDemo/res/values/styles.xml , 680
CircleImageVIewDemo/CircleImageVIewDemo/res/values-v11/styles.xml , 324
CircleImageVIewDemo/CircleImageVIewDemo/res/values-v14/styles.xml , 381
CircleImageVIewDemo/CircleImageVIewDemo/src/de/.DS_Store , 6148
CircleImageVIewDemo/CircleImageVIewDemo/src/de/hdodenhof/.DS_Store , 6148
CircleImageVIewDemo/CircleImageVIewDemo/src/de/hdodenhof/circleimageview/CircleImageView.java , 7005
CircleImageVIewDemo/CircleImageVIewDemo/src/edu/njupt/zhb/main/MainActivity.java , 308