/**
* Copyright (C) 2013-2014 EaseMob Technologies. All rights reserved.
*
* 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.fanxin.app.activity;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import android.annotation.SuppressLint;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ProgressBar;
import com.easemob.chat.EMChatConfig;
import com.fanxin.app.R;
import com.fanxin.app.task.LoadLocalBigImgTask;
import com.fanxin.app.utils.ImageCache;
import com.fanxin.app.widget.photoview.PhotoView;
import com.easemob.cloud.CloudOperationCallback;
import com.easemob.cloud.HttpFileManager;
import com.easemob.util.ImageUtils;
import com.easemob.util.PathUtil;
/**
* 下载显示大图
*
*/
public class ShowBigImage extends BaseActivity {
private ProgressDialog pd;
private PhotoView image;
private int default_res = R.drawable.default_image;
private String localFilePath;
private Bitmap bitmap;
private boolean isDownloaded;
private ProgressBar loadLocalPb;
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_show_big_image);
super.onCreate(savedInstanceState);
image = (PhotoView) findViewById(R.id.image);
loadLocalPb = (ProgressBar) findViewById(R.id.pb_load_local);
default_res = getIntent().getIntExtra("default_image", R.drawable.default_avatar);
Uri uri = getIntent().getParcelableExtra("uri");
String remotepath = getIntent().getExtras().getString("remotepath");
String secret = getIntent().getExtras().getString("secret");
System.err.println("show big image uri:" + uri + " remotepath:" + remotepath);
//本地存在,直接显示本地的图片
if (uri != null && new File(uri.getPath()).exists()) {
System.err.println("showbigimage file exists. directly show it");
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
// int screenWidth = metrics.widthPixels;
// int screenHeight =metrics.heightPixels;
bitmap = ImageCache.getInstance().get(uri.getPath());
if (bitmap == null) {
LoadLocalBigImgTask task = new LoadLocalBigImgTask(this, uri.getPath(), image, loadLocalPb, ImageUtils.SCALE_IMAGE_WIDTH,
ImageUtils.SCALE_IMAGE_HEIGHT);
if (android.os.Build.VERSION.SDK_INT > 10) {
task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
task.execute();
}
} else {
image.setImageBitmap(bitmap);
}
} else if (remotepath != null) { //去服务器下载图片
System.err.println("download remote image");
Map<String, String> maps = new HashMap<String, String>();
if (!TextUtils.isEmpty(secret)) {
maps.put("share-secret", secret);
}
downloadImage(remotepath, maps);
} else {
image.setImageResource(default_res);
}
image.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
/**
* 通过远程URL,确定下本地下载后的localurl
* @param remoteUrl
* @return
*/
public String getLocalFilePath(String remoteUrl){
String localPath;
if (remoteUrl.contains("/")){
localPath = PathUtil.getInstance().getImagePath().getAbsolutePath() + "/"
+ remoteUrl.substring(remoteUrl.lastIndexOf("/") + 1);
}else{
localPath = PathUtil.getInstance().getImagePath().getAbsolutePath() + "/" + remoteUrl;
}
return localPath;
}
/**
* 下载图片
*
* @param remoteFilePath
*/
private void downloadImage(final String remoteFilePath, final Map<String, String> headers) {
pd = new ProgressDialog(this);
pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
pd.setCanceledOnTouchOutside(false);
pd.setMessage("下载图片: 0%");
pd.show();
localFilePath = getLocalFilePath(remoteFilePath);
final HttpFileManager httpFileMgr = new HttpFileManager(this, EMChatConfig.getInstance().getStorageUrl());
final CloudOperationCallback callback = new CloudOperationCallback() {
public void onSuccess(String resultMsg) {
runOnUiThread(new Runnable() {
@Override
public void run() {
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int screenWidth = metrics.widthPixels;
int screenHeight = metrics.heightPixels;
bitmap = ImageUtils.decodeScaleImage(localFilePath, screenWidth, screenHeight);
if (bitmap == null) {
image.setImageResource(default_res);
} else {
image.setImageBitmap(bitmap);
ImageCache.getInstance().put(localFilePath, bitmap);
isDownloaded = true;
}
if (pd != null) {
pd.dismiss();
}
}
});
}
public void onError(String msg) {
Log.e("###", "offline file transfer error:" + msg);
File file = new File(localFilePath);
if (file.exists()&&file.isFile()) {
file.delete();
}
runOnUiThread(new Runnable() {
@Override
public void run() {
pd.dismiss();
image.setImageResource(default_res);
}
});
}
public void onProgress(final int progress) {
Log.d("ease", "Progress: " + progress);
runOnUiThread(new Runnable() {
@Override
public void run() {
pd.setMessage("下载图片: " + progress + "%");
}
});
}
};
new Thread(new Runnable() {
@Override
public void run() {
httpFileMgr.downloadFile(remoteFilePath, localFilePath, headers, callback);
}
}).start();
}
@Override
public void onBackPressed() {
if (isDownloaded)
setResult(RESULT_OK);
finish();
}
}