package com.dollearn.student.utils;
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import android.app.Activity;
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import android.graphics.Bitmap;
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import android.net.Uri;
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import android.provider.MediaStore;
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import android.text.TextUtils;
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import android.util.Log;
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import com.facebook.common.util.UriUtil;
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import com.facebook.drawee.backends.pipeline.Fresco;
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import com.facebook.drawee.backends.pipeline.PipelineDraweeController;
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import com.facebook.drawee.controller.AbstractDraweeController;
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import com.facebook.drawee.interfaces.DraweeController;
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import com.facebook.drawee.view.SimpleDraweeView;
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import com.facebook.imagepipeline.common.ResizeOptions;
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import com.facebook.imagepipeline.postprocessors.IterativeBoxBlurPostProcessor;
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import com.facebook.imagepipeline.request.ImageRequest;
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import com.facebook.imagepipeline.request.ImageRequestBuilder;
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/**
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* Created by Administrator on 2018/1/23.
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*/
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public class ImageUtils {
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//加载本地图片
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public static void loadDrawable(SimpleDraweeView draweeView, int resId) {
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Uri uri = new Uri.Builder()
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.scheme(UriUtil.LOCAL_RESOURCE_SCHEME)
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.path(String.valueOf(resId))
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.build();
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DraweeController controller = Fresco.newDraweeControllerBuilder()
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.setUri(uri)
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.setOldController(draweeView.getController())
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.build();
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draweeView.setController(controller);
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}
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// public static void loadUri(ImageView draweeView, Uri uri){
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// draweeView.setImageURI(uri);
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// }
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public static void loadUri(SimpleDraweeView draweeView, String uri) {
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DraweeController controller = Fresco.newDraweeControllerBuilder()
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.setUri(uri)
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.setAutoPlayAnimations(true)
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.build();
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draweeView.setController(controller);
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// draweeView.setImageURI(uri);
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}
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public static void loadSmallUri(SimpleDraweeView draweeView, String uri) {
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int width = 100, height = 100;
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if (TextUtils.isEmpty(uri)) {
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return;
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}
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Uri uri1 = Uri.parse(uri);
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ImageRequest request = ImageRequestBuilder.newBuilderWithSource(uri1)
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.setResizeOptions(new ResizeOptions(width, height))
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.build();
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PipelineDraweeController controller = (PipelineDraweeController) Fresco.newDraweeControllerBuilder()
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.setOldController(draweeView.getController())
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.setImageRequest(request)
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.build();
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draweeView.setController(controller);
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}
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/**
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* 以高斯模糊显示。
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*
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* @param draweeView View。
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* @param url url.
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* @param iterations 迭代次数，越大越魔化。
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* @param blurRadius 模糊图半径，必须大于0，越大越模糊。
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*/
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public static void showUrlBlur(SimpleDraweeView draweeView, String url, int iterations, int blurRadius) {
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try {
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Uri uri = Uri.parse(url);
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ImageRequest request = ImageRequestBuilder.newBuilderWithSource(uri)
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.setPostprocessor(new IterativeBoxBlurPostProcessor(iterations, blurRadius))
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.build();
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AbstractDraweeController controller = Fresco.newDraweeControllerBuilder()
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.setOldController(draweeView.getController())
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.setImageRequest(request)
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.build();
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draweeView.setController(controller);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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//转换为bitmap
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public static Bitmap getBitmapFromUri(Activity activity, Uri uri) {
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try {
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// 读取uri所在的图片
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Bitmap bitmap = MediaStore.Images.Media.getBitmap(activity.getContentResolver(), uri);
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return bitmap;
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} catch (Exception e) {
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Log.e("[Android]", e.getMessage());
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Log.e("[Android]", "目录为：" + uri);
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e.printStackTrace();
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return null;
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}
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}
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public static Uri getUriforBitmap(Activity activity, Bitmap bitmap) {
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try {
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// 读取uri所在的图片
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Uri uri = Uri.parse(MediaStore.Images.Media.insertImage(activity.getContentResolver(), bitmap, null, null));
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return uri;
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} catch (Exception e) {
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Log.e("[Android]", e.getMessage());
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e.printStackTrace();
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return null;
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}
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}
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}
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