Glide是一個快速高效的Android媒體管理框架,將媒體解碼、內存和硬盤緩存、資源池包裝成簡單和易於使用的接口。Glide支持獲取、解碼和顯示視頻文件、圖片和動畫GIF文件。包含了一個靈活的API,藉助以API開發者能夠將Glide應用到大多數的網絡協議棧中。默認情況下,Glide使用了基於stack的定製HttpUrlConnection,但是還包含了使用工具類將Glide應用到Google's Volley項目或Square's OkHttp類庫。
Glide的首要目標是儘可能的使任意類型的圖片列表快速流暢的滾動,另一個目標是高效的獲取、顯示遠程圖片以及調整遠程圖片的大小
1、加載普通圖片
代碼:
Glide.with(this).load(url).into(imgview);
2、填充式加載圖片
代碼:
Glide.with(this).load(url).centerCrop().into(imgview);
3、加載圓形圖片
代碼:
Glide.with(this).load(url).transform(new GlideCircleTransform(this)).into(imgview);
GlideCircleTransform類:
package com.example.yukuo.glidedemo; 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 yukuo on 2016/3/21. * 這是一個將網絡圖片轉換爲圓形的方法 */ 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 Bitmap circleCrop(BitmapPool pool, Bitmap toTransform) { if (toTransform == null) return null; int size = Math.min(toTransform.getWidth(), toTransform.getHeight()); int x = (toTransform.getWidth() - size) / 2; int y = (toTransform.getHeight() - size) / 2; // TODO this could be acquired from the pool too Bitmap squared = Bitmap.createBitmap(toTransform, 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(); } }
4、加載圓角圖片
代碼:
Glide.with(this).load(url).transform(new GlideRoundTransform(this)).into(imgview);
GlideRoundTransform 類:
package com.example.yukuo.glidedemo; 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 yukuo on 2016/3/21. * 這是一個加載網絡圖片設置圓角的類 */ 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); } }
5、加載本地圖片
代碼:
Glide.with(this).load(R.drawable.ic_launceher).transform(new GlideRoundTransform(this)).into(imgview);
6、加載SD卡圖片
代碼:
Glide.with(this).load(path).transform(new GlideRoundTransform(this)).into(imgview);
轉自:http://blog.csdn.net/easkshark/article/details/51374049