添加依赖
dependencies{ compile'com.github.bumptech.glide:glide:3.7.0'}
网络权限
<uses-permission android:name="android.permission.INTERNET" />
将图片转化为圆形
import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapShader; import android.graphics.Canvas; import android.graphics.Paint; import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool; import com.bumptech.glide.load.resource.bitmap.BitmapTransformation; /** * Created by huruihua on 2017/3/14. * 将图片转化为圆形 */ public class GlideCircleTransform extends BitmapTransformation{ public GlideCircleTransform(Context context) { super(context); } @Override protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) { return circleCrop(pool, toTransform); } private static Bitmap circleCrop(BitmapPool pool, Bitmap source) { if (source == null) return null; int size = Math.min(source.getWidth(), source.getHeight()); int x = (source.getWidth() - size) / 2; int y = (source.getHeight() - size) / 2; // TODO this could be acquired from the pool too Bitmap squared = Bitmap.createBitmap(source, x, y, size, size); Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888); if (result == null) { result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); } Canvas canvas = new Canvas(result); Paint paint = new Paint(); paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP)); paint.setAntiAlias(true); float r = size / 2f; canvas.drawCircle(r, r, r, paint); return result; } @Override public String getId() { return getClass().getName(); } }
将图片转化为圆角
import android.content.Context; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapShader; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.RectF; import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool; import com.bumptech.glide.load.resource.bitmap.BitmapTransformation; /** * Created by huruihua on 2017/3/14. * * 将图片转化为圆角 * 构造中第二个参数定义半径 */ public class GlideRoundTransform extends BitmapTransformation { private static float radius = 0f; public GlideRoundTransform(Context context) { this(context, 4); } public GlideRoundTransform(Context context, int dp) { super(context); this.radius = Resources.getSystem().getDisplayMetrics().density * dp; } @Override protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) { return roundCrop(pool, toTransform); } private static Bitmap roundCrop(BitmapPool pool, Bitmap source) { if (source == null) return null; Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888); if (result == null) { result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888); } Canvas canvas = new Canvas(result); Paint paint = new Paint(); paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP)); paint.setAntiAlias(true); RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight()); canvas.drawRoundRect(rectF, radius, radius, paint); return result; } @Override public String getId() { return getClass().getName() + Math.round(radius); } }
使用
import android.content.Context; import android.widget.ImageView; import com.bumptech.glide.Glide; /** * Created by huruihua on 2017/3/14. */ public class GlideImgManager { /** * load normal for img * * @param url * @param erroImg * @param emptyImg * @param iv */ public static void glideLoader(Context context, String url, int erroImg, int emptyImg, ImageView iv) { //原生 API Glide.with(context).load(url).placeholder(emptyImg).error(erroImg).into(iv); } /** * load normal for circle or round img * * @param url * @param erroImg 失败 * @param emptyImg 占位图 * @param iv * @param tag 0 圆形图片 1 圆角图片 */ public static void glideLoader(Context context, String url, int erroImg, int emptyImg, ImageView iv, int tag) { if (0 == tag) { Glide.with(context).load(url).placeholder(emptyImg).error(erroImg).transform(new GlideCircleTransform(context)).into(iv); } else if (1 == tag) { Glide.with(context).load(url).placeholder(emptyImg).error(erroImg).transform(new GlideRoundTransform(context,10)).into(iv); } } }