package com.kuanzhai.driver.utils;
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import android.app.Activity;
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import android.content.Context;
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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 android.widget.ImageView;
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import com.facebook.common.executors.CallerThreadExecutor;
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import com.facebook.common.references.CloseableReference;
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import com.facebook.common.util.UriUtil;
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import com.facebook.datasource.DataSource;
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import com.facebook.drawee.backends.pipeline.Fresco;
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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.core.ImagePipeline;
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import com.facebook.imagepipeline.datasource.BaseBitmapDataSubscriber;
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import com.facebook.imagepipeline.image.CloseableImage;
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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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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import cn.sinata.xldutils.utils.Base64;
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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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/**
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* 将图片转换成Base64编码的字符串
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*
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* @param path 图片本地路径
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* @return base64编码的字符串
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*/
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public static String imageToBase64(String path) {
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if (TextUtils.isEmpty(path)) {
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return null;
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}
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InputStream is = null;
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byte[] data;
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String result = null;
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try {
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is = new FileInputStream(path);
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//创建一个字符流大小的数组。
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data = new byte[is.available()];
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//写入数组
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is.read(data);
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//用默认的编码格式进行编码
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result = Base64.encodeToString(data, Base64.DEFAULT);
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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if (null != is) {
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try {
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is.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return result;
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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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/**
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* 加载图片成bitmap。
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*
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* @param imageUrl 图片地址。
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*/
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public static void loadToBitmap(String imageUrl, BaseBitmapDataSubscriber mDataSubscriber, Context context) {
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ImageRequest imageRequest = ImageRequestBuilder
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.newBuilderWithSource(Uri.parse(imageUrl))
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.setProgressiveRenderingEnabled(true)
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.build();
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ImagePipeline imagePipeline = Fresco.getImagePipeline();
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DataSource<CloseableReference<CloseableImage>> dataSource = imagePipeline.fetchDecodedImage
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(imageRequest, context);
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dataSource.subscribe(mDataSubscriber, CallerThreadExecutor.getInstance());
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}
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/**
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* 转换为bitmap
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*
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* @param activity
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* @param uri
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* @return
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*/
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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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