com.lostad.app.base.util.DownloadUtil.java Source code

Introduction

Here is the source code for com.lostad.app.base.util.DownloadUtil.java

Source

/*
 * Copyright 2010 Renren, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.lostad.app.base.util;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Looper;
import android.widget.ImageView;

import com.lostad.app.demo.R;
import com.lostad.applib.core.MyCallback;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.xutils.image.ImageOptions;
import org.xutils.x;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * s
 * ?
 * @author sszvip@qq.com
 * @since  2013-7-2
 */
public class DownloadUtil {

    //   public static void loadImage(ImageView imageView,String url,Integer loadingImage,Integer emptyImage,Integer failImage){
    //        try{
    //         DisplayImageOptions.Builder b =  new DisplayImageOptions.Builder();
    //         if(loadingImage!=null){
    //            b.showImageOnLoading(loadingImage);
    //         }
    //         if(emptyImage!=null){
    //            b.showImageForEmptyUri(emptyImage);
    //         }
    //         if(failImage!=null){
    //            b.showImageOnFail(failImage);
    //         }
    //
    //         b.cacheInMemory(true);
    //         b.cacheOnDisc(true);
    //         b.bitmapConfig(Bitmap.Config.RGB_565);
    //         DisplayImageOptions options = b.build();
    //         ImageLoader.getInstance().displayImage(url, imageView, options);
    //      }catch (Exception e){
    //         e.printStackTrace();
    //      }
    //
    //   }
    //public static void loadImage(ImageView imageView,String url,DisplayImageOptions options){
    //   ImageLoader.getInstance().displayImage(url, imageView, options);
    //}
    private static ImageOptions mImageOptions;

    public static void loadImage(Activity ctx, ImageView iv_pic, String url) {
        loadImage(ctx, iv_pic, R.mipmap.ic_launcher, url);
    }

    public static void loadImage(Activity ctx, ImageView iv_pic, int defalutImgId, String url) {
        try {
            if (mImageOptions == null) {
                mImageOptions = new ImageOptions.Builder()
                        // ScaleType
                        //.setPlaceholderScaleType(ImageView.ScaleType.MATRIX)
                        // ?
                        // .setSize(...)
                        .setFailureDrawableId(R.mipmap.load_fail).setLoadingDrawableId(R.mipmap.ic_launcher)
                        .setIgnoreGif(false).setUseMemCache(true).setImageScaleType(ImageView.ScaleType.CENTER)
                        .build();
            }
            x.image().bind(iv_pic, url, mImageOptions);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void loadImage(ImageView iv_pic, String url, ImageOptions options) {
        x.image().bind(iv_pic, url, options);
    }

    public static void downFileAsyn(final Activity ctx, final String upgradeUrl, final String savedPath,
            final MyCallback<Boolean> callback) {
        final ProgressDialog xh_pDialog = new ProgressDialog(ctx);
        // ?
        xh_pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        // ProgressDialog 
        xh_pDialog.setTitle("???");
        // ProgressDialog???
        xh_pDialog.setMessage("...");
        // ProgressDialog
        // xh_pDialog.setIcon(R.drawable.img2);
        // ProgressDialog ??? false ??
        xh_pDialog.setIndeterminate(false);
        // ProgressDialog ?
        // xh_pDialog.setProgress(100);
        // ProgressDialog ???
        xh_pDialog.setCancelable(true);
        // ProgressDialog
        xh_pDialog.show();

        new Thread() {
            public void run() {

                boolean downloadSuccess = true;
                FileOutputStream fileOutputStream = null;
                try {
                    Looper.prepare();
                    HttpClient client = new DefaultHttpClient();
                    HttpGet get = new HttpGet(upgradeUrl);

                    File f = new File(savedPath);
                    if (!f.exists()) {
                        f.createNewFile();
                    }

                    HttpResponse response = client.execute(get);
                    HttpEntity entity = response.getEntity();
                    // ?
                    Long length = entity.getContentLength();
                    xh_pDialog.setMax(length.intValue());
                    //
                    InputStream is = entity.getContent();
                    fileOutputStream = null;

                    if (is != null && length > 0) {

                        fileOutputStream = new FileOutputStream(f);

                        byte[] buf = new byte[1024];
                        int ch = -1;
                        int count = 0;
                        while ((ch = is.read(buf)) != -1) {

                            if (xh_pDialog.isShowing()) {
                                fileOutputStream.write(buf, 0, ch);
                                // ?
                                count += ch;
                                xh_pDialog.setProgress(count);
                            } else {
                                downloadSuccess = false;
                                break;// ?
                            }
                        }

                    } else {
                        callback.onCallback(false);
                    }

                    if (downloadSuccess && fileOutputStream != null) {
                        xh_pDialog.dismiss();
                        fileOutputStream.flush();
                        fileOutputStream.close();
                        callback.onCallback(true);// ?
                    }
                    Looper.loop();
                } catch (FileNotFoundException e) {
                    xh_pDialog.dismiss();
                    e.printStackTrace();
                    callback.onCallback(false);
                    xh_pDialog.dismiss();
                } catch (Exception e) {
                    xh_pDialog.dismiss();
                    e.printStackTrace();
                    callback.onCallback(false);
                } finally {
                    try {
                        fileOutputStream.flush();
                        fileOutputStream.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }

        }.start();

    }
}