1：错误日志

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.8.activity.RecordActivity}: 
android.view.InflateException: Binary XML file line #167: Binary XML file line #167: Error inflating class <unknown>

	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2451)

	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2511)

	at android.app.ActivityThread.access$900(ActivityThread.java:165)

	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1375)

	at android.os.Handler.dispatchMessage(Handler.java:102)

	at android.os.Looper.loop(Looper.java:150)

	at android.app.ActivityThread.main(ActivityThread.java:5621)

	at java.lang.reflect.Method.invoke(Native Method)

	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)

	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)

Caused by: android.view.InflateException: Binary XML file line #167: Binary XML file line #167: Error inflating class <unknown>

	at android.view.LayoutInflater.inflate(LayoutInflater.java:558)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:434)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:377)

	at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)

	at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)

	at com.multak.mi8212.activity.RecordActivity.onCreate(RecordActivity.java:86)

	at android.app.Activity.performCreate(Activity.java:6367)

	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)

	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2404)

	... 9 more

Caused by: android.view.InflateException: Binary XML file line #167: Error inflating class <unknown>

	at android.view.LayoutInflater.createView(LayoutInflater.java:664)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:783)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:723)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:854)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:534)

	... 17 more

Caused by: java.lang.reflect.InvocationTargetException

	at java.lang.reflect.Constructor.newInstance(Native Method)

	at android.view.LayoutInflater.createView(LayoutInflater.java:638)

	... 30 more

Caused by: java.lang.OutOfMemoryError: Failed to allocate a 65901936 byte allocation with 12582912 free bytes and 51MB until OOM

	at dalvik.system.VMRuntime.newNonMovableArray(Native Method)

	at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)

	at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:667)

	at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:488)

	at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1082)

	at android.content.res.Resources.loadDrawableForCookie(Resources.java:2702)

	at android.content.res.Resources.loadDrawable(Resources.java:2603)

	at android.content.res.HwResources.loadDrawable(HwResources.java:667)

	at android.content.res.TypedArray.getDrawable(TypedArray.java:912)

	at android.widget.ImageView.<init>(ImageView.java:152)

	at android.widget.ImageView.<init>(ImageView.java:140)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:72)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68)

	at com.multak.mi8212.view.RoundImageView.<init>(RoundImageView.java:44)

	... 32 more

android.view.InflateException: Binary XML file line #167: Binary XML file line #167: Error inflating class <unknown>

	at android.view.LayoutInflater.inflate(LayoutInflater.java:558)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:434)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:377)

	at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)

	at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)

	at com.multak.mi8212.activity.RecordActivity.onCreate(RecordActivity.java:86)

	at android.app.Activity.performCreate(Activity.java:6367)

	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)

	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2404)

	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2511)

	at android.app.ActivityThread.access$900(ActivityThread.java:165)

	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1375)

	at android.os.Handler.dispatchMessage(Handler.java:102)

	at android.os.Looper.loop(Looper.java:150)

	at android.app.ActivityThread.main(ActivityThread.java:5621)

	at java.lang.reflect.Method.invoke(Native Method)

	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)

	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)

Caused by: android.view.InflateException: Binary XML file line #167: Error inflating class <unknown>

	at android.view.LayoutInflater.createView(LayoutInflater.java:664)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:783)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:723)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:854)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:534)

	... 17 more

Caused by: java.lang.reflect.InvocationTargetException

	at java.lang.reflect.Constructor.newInstance(Native Method)

	at android.view.LayoutInflater.createView(LayoutInflater.java:638)

	... 30 more

Caused by: java.lang.OutOfMemoryError: Failed to allocate a 65901936 byte allocation with 12582912 free bytes and 51MB until OOM

	at dalvik.system.VMRuntime.newNonMovableArray(Native Method)

	at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)

	at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:667)

	at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:488)

	at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1082)

	at android.content.res.Resources.loadDrawableForCookie(Resources.java:2702)

	at android.content.res.Resources.loadDrawable(Resources.java:2603)

	at android.content.res.HwResources.loadDrawable(HwResources.java:667)

	at android.content.res.TypedArray.getDrawable(TypedArray.java:912)

	at android.widget.ImageView.<init>(ImageView.java:152)

	at android.widget.ImageView.<init>(ImageView.java:140)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:72)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68)

	at com.multak.mi8212.view.RoundImageView.<init>(RoundImageView.java:44)

	... 32 more

android.view.InflateException: Binary XML file line #167: Error inflating class <unknown>

	at android.view.LayoutInflater.createView(LayoutInflater.java:664)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:783)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:723)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:854)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:534)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:434)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:377)

	at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)

	at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)

	at com.multak.mi8212.activity.RecordActivity.onCreate(RecordActivity.java:86)

	at android.app.Activity.performCreate(Activity.java:6367)

	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)

	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2404)

	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2511)

	at android.app.ActivityThread.access$900(ActivityThread.java:165)

	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1375)

	at android.os.Handler.dispatchMessage(Handler.java:102)

	at android.os.Looper.loop(Looper.java:150)

	at android.app.ActivityThread.main(ActivityThread.java:5621)

	at java.lang.reflect.Method.invoke(Native Method)

	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)

	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)

Caused by: java.lang.reflect.InvocationTargetException

	at java.lang.reflect.Constructor.newInstance(Native Method)

	at android.view.LayoutInflater.createView(LayoutInflater.java:638)

	... 30 more

Caused by: java.lang.OutOfMemoryError: Failed to allocate a 65901936 byte allocation with 12582912 free bytes and 51MB until OOM

	at dalvik.system.VMRuntime.newNonMovableArray(Native Method)

	at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)

	at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:667)

	at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:488)

	at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1082)

	at android.content.res.Resources.loadDrawableForCookie(Resources.java:2702)

	at android.content.res.Resources.loadDrawable(Resources.java:2603)

	at android.content.res.HwResources.loadDrawable(HwResources.java:667)

	at android.content.res.TypedArray.getDrawable(TypedArray.java:912)

	at android.widget.ImageView.<init>(ImageView.java:152)

	at android.widget.ImageView.<init>(ImageView.java:140)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:72)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68)

	at com.multak.mi8212.view.RoundImageView.<init>(RoundImageView.java:44)

	... 32 more

java.lang.reflect.InvocationTargetException

	at java.lang.reflect.Constructor.newInstance(Native Method)

	at android.view.LayoutInflater.createView(LayoutInflater.java:638)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:783)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:723)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:854)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:534)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:434)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:377)

	at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)

	at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)

	at com.multak.mi8212.activity.RecordActivity.onCreate(RecordActivity.java:86)

	at android.app.Activity.performCreate(Activity.java:6367)

	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)

	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2404)

	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2511)

	at android.app.ActivityThread.access$900(ActivityThread.java:165)

	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1375)

	at android.os.Handler.dispatchMessage(Handler.java:102)

	at android.os.Looper.loop(Looper.java:150)

	at android.app.ActivityThread.main(ActivityThread.java:5621)

	at java.lang.reflect.Method.invoke(Native Method)

	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)

	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)

Caused by: java.lang.OutOfMemoryError: Failed to allocate a 65901936 byte allocation with 12582912 free bytes and 51MB until OOM

	at dalvik.system.VMRuntime.newNonMovableArray(Native Method)

	at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)

	at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:667)

	at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:488)

	at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1082)

	at android.content.res.Resources.loadDrawableForCookie(Resources.java:2702)

	at android.content.res.Resources.loadDrawable(Resources.java:2603)

	at android.content.res.HwResources.loadDrawable(HwResources.java:667)

	at android.content.res.TypedArray.getDrawable(TypedArray.java:912)

	at android.widget.ImageView.<init>(ImageView.java:152)

	at android.widget.ImageView.<init>(ImageView.java:140)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:72)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68)

	at com.multak.mi8212.view.RoundImageView.<init>(RoundImageView.java:44)

	... 32 more

java.lang.OutOfMemoryError: Failed to allocate a 65901936 byte allocation with 12582912 free bytes and 51MB until OOM

	at dalvik.system.VMRuntime.newNonMovableArray(Native Method)

	at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)

	at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:667)

	at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:488)

	at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1082)

	at android.content.res.Resources.loadDrawableForCookie(Resources.java:2702)

	at android.content.res.Resources.loadDrawable(Resources.java:2603)

	at android.content.res.HwResources.loadDrawable(HwResources.java:667)

	at android.content.res.TypedArray.getDrawable(TypedArray.java:912)

	at android.widget.ImageView.<init>(ImageView.java:152)

	at android.widget.ImageView.<init>(ImageView.java:140)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:72)

	at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68)

	at com.multak.mi8212.view.RoundImageView.<init>(RoundImageView.java:44)

	at java.lang.reflect.Constructor.newInstance(Native Method)

	at android.view.LayoutInflater.createView(LayoutInflater.java:638)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:783)

	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:723)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:854)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)

	at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:534)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:434)

	at android.view.LayoutInflater.inflate(LayoutInflater.java:377)

	at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)

	at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)

	at com.multak.mi8212.activity.RecordActivity.onCreate(RecordActivity.java:86)

	at android.app.Activity.performCreate(Activity.java:6367)

	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)

	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2404)

	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2511)

	at android.app.ActivityThread.access$900(ActivityThread.java:165)

	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1375)

	at android.os.Handler.dispatchMessage(Handler.java:102)

	at android.os.Looper.loop(Looper.java:150)

	at android.app.ActivityThread.main(ActivityThread.java:5621)

	at java.lang.reflect.Method.invoke(Native Method)

	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)

	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)

2：错误指向XML--的自定义view（借用的别人的圆形Image）

import android.content.Context;

import android.content.res.TypedArray;

import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.PorterDuff.Mode;

import android.graphics.PorterDuffXfermode;

import android.graphics.Rect;

import android.graphics.drawable.BitmapDrawable;

import android.graphics.drawable.Drawable;

import android.graphics.drawable.NinePatchDrawable;

import android.util.AttributeSet;

public class RoundImageView extends android.support.v7.widget.AppCompatImageView {

    private int mBorderThickness = 0;

    private Context mContext;

    private int defaultColor = 0xFFFFFFFF;

    // 如果只有其中一个有值，则只画一个圆形边框

    private int mBorderOutsideColor = 0;

    private int mBorderInsideColor = 0;

    // 控件默认长、宽

    private int defaultWidth = 0;

    private int defaultHeight = 0;

    public RoundImageView(Context context) {

        super(context);

        mContext = context;

    }

    public RoundImageView(Context context, AttributeSet attrs) {

        super(context, attrs);

        mContext = context;

        setCustomAttributes(attrs);

    }

    public RoundImageView(Context context, AttributeSet attrs, int defStyle) {

        super(context, attrs, defStyle);

        mContext = context;

        setCustomAttributes(attrs);

    }

    private void setCustomAttributes(AttributeSet attrs) {

        TypedArray a = mContext.obtainStyledAttributes(attrs, R.styleable.roundedimageview);

        mBorderThickness = a.getDimensionPixelSize(R.styleable.roundedimageview_border_thickness, 0);

        mBorderOutsideColor = a.getColor(R.styleable.roundedimageview_border_outside_color,defaultColor);

        mBorderInsideColor = a.getColor(R.styleable.roundedimageview_border_inside_color, defaultColor);

    }

    @Override

    protected void onDraw(Canvas canvas) {

        Drawable drawable = getDrawable() ;

        if (drawable == null) {

            return;

        }

        if (getWidth() == 0 || getHeight() == 0) {

            return;

        }

        this.measure(0, 0);

        if (drawable.getClass() == NinePatchDrawable.class)

            return;

        Bitmap b = ((BitmapDrawable) drawable).getBitmap();

        Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);

        if (defaultWidth == 0) {

            defaultWidth = getWidth();

        }

        if (defaultHeight == 0) {

            defaultHeight = getHeight();

        }

        int radius = 0;

        if (mBorderInsideColor != defaultColor && mBorderOutsideColor != defaultColor) {// 定义画两个边框，分别为外圆边框和内圆边框

            radius = (defaultWidth < defaultHeight ? defaultWidth : defaultHeight) / 2 - 2 * mBorderThickness;

            // 画内圆

            drawCircleBorder(canvas, radius + mBorderThickness / 2,mBorderInsideColor);

            // 画外圆

            drawCircleBorder(canvas, radius + mBorderThickness + mBorderThickness / 2, mBorderOutsideColor);

        } else if (mBorderInsideColor != defaultColor && mBorderOutsideColor == defaultColor) {// 定义画一个边框

            radius = (defaultWidth < defaultHeight ? defaultWidth : defaultHeight) / 2 - mBorderThickness;

            drawCircleBorder(canvas, radius + mBorderThickness / 2, mBorderInsideColor);

        } else if (mBorderInsideColor == defaultColor && mBorderOutsideColor != defaultColor) {// 定义画一个边框

            radius = (defaultWidth < defaultHeight ? defaultWidth : defaultHeight) / 2 - mBorderThickness;

            drawCircleBorder(canvas, radius + mBorderThickness / 2, mBorderOutsideColor);

        } else {// 没有边框

            radius = (defaultWidth < defaultHeight ? defaultWidth : defaultHeight) / 2;

        }

        Bitmap roundBitmap = getCroppedRoundBitmap(bitmap, radius);

        canvas.drawBitmap(roundBitmap, defaultWidth / 2 - radius, defaultHeight / 2 - radius, null);

    }

    /**

     * 获取裁剪后的圆形图片

     * @param

     */

    public Bitmap getCroppedRoundBitmap(Bitmap bmp, int radius) {

        Bitmap scaledSrcBmp;

        int diameter = radius * 2;

        // 为了防止宽高不相等，造成圆形图片变形，因此截取长方形中处于中间位置最大的正方形图片

        int bmpWidth = bmp.getWidth();

        int bmpHeight = bmp.getHeight();

        int squareWidth = 0, squareHeight = 0;

        int x = 0, y = 0;

        Bitmap squareBitmap;

        if (bmpHeight > bmpWidth) {// 高大于宽

            squareWidth = squareHeight = bmpWidth;

            x = 0;

            y = (bmpHeight - bmpWidth) / 2;

            // 截取正方形图片

            squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth, squareHeight);

        } else if (bmpHeight < bmpWidth) {// 宽大于高

            squareWidth = squareHeight = bmpHeight;

            x = (bmpWidth - bmpHeight) / 2;

            y = 0;

            squareBitmap = Bitmap.createBitmap(bmp, x, y, squareWidth,squareHeight);

        } else {

            squareBitmap = bmp;

        }

        if (squareBitmap.getWidth() != diameter || squareBitmap.getHeight() != diameter) {

            scaledSrcBmp = Bitmap.createScaledBitmap(squareBitmap, diameter,diameter, true);

        } else {

            scaledSrcBmp = squareBitmap;

        }

        Bitmap output = Bitmap.createBitmap(scaledSrcBmp.getWidth(),

                scaledSrcBmp.getHeight(),

                Config.ARGB_8888);

        Canvas canvas = new Canvas(output);

        Paint paint = new Paint();

        Rect rect = new Rect(0, 0, scaledSrcBmp.getWidth(),scaledSrcBmp.getHeight());

        paint.setAntiAlias(true);

        paint.setFilterBitmap(true);

        paint.setDither(true);

        canvas.drawARGB(0, 0, 0, 0);

        canvas.drawCircle(scaledSrcBmp.getWidth() / 2,

                scaledSrcBmp.getHeight() / 2,

                scaledSrcBmp.getWidth() / 2,

                paint);

        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));

      //  paint.setShadowLayer(4.0f,0.0f,2.0f, Color.RED);

        canvas.drawBitmap(scaledSrcBmp, rect, rect, paint);

        bmp = null;

        squareBitmap = null;

        scaledSrcBmp = null;

        return output;

    }

    /**

     * 边缘画圆

     */

    private void drawCircleBorder(Canvas canvas, int radius, int color) {

        Paint paint = new Paint();

        /**

         * 自己加的

         */

        //paintBorder.setShadowLayer(4.0f, 0.0f, 2.0f, Color.BLACK);

       // paint.setShadowLayer(4.0f,0.0f,2.0f, Color.RED);

        /* 去锯齿 */

        paint.setAntiAlias(true);

        paint.setFilterBitmap(true);

        paint.setDither(true);

        paint.setColor(color);

        /* 设置paint的　style　为STROKE：空心 */

        paint.setStyle(Paint.Style.STROKE);

        /* 设置paint的外框宽度 */

        paint.setStrokeWidth(mBorderThickness);

        canvas.drawCircle(defaultWidth / 2, defaultHeight / 2, radius, paint);

    }

}

　3：记录下，后续再看

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