package com.juchao.upg.android.util;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.juchao.upg.android.R;
import com.juchao.upg.android.ui.StartActivity;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Environment;
import android.view.Display;
public class ClientUtil {
private static final int COMPRESSION=30;
/**
* 获取屏幕的宽高
* @param mActivity
* @return
*/
public static int[] getWidthHeight(Activity mActivity){
int[] w_h = new int[2];
Display display = mActivity.getWindowManager().getDefaultDisplay();
w_h[0] = display.getWidth();
w_h[1] = display.getHeight();
return w_h;
}
/**
* 将dip转换为px
*
* @param context
* @param dipValue
* @return
*/
public static int dip2px(Context context, float dipValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dipValue * scale + 0.5f);
}
/**
* 将px转换为dip
*
* @param context
* @param dipValue
* @return
*/
public static int px2dip(Context context, float pxValue) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
public static String getSDPath(){
File sdDir = null;
boolean sdCardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
//判断sd卡是否存在
if (sdCardExist){
sdDir = Environment.getExternalStorageDirectory();//获取跟目录
return sdDir.toString();
}
return null;
}
public static String getRootDir(){
return Environment.getExternalStorageDirectory().getAbsolutePath();
}
public static String getDownDir(){
String path = getRootDir() + "/upg/apk";
File file = new File(path);
if(!file.exists()){//判断文件夹目录是否存在
file.mkdirs();//如果不存在则创建
}
return file.getAbsolutePath();
}
public static String getImageDir(){
String path = getRootDir() + "/upg/image";
File file = new File(path);
if(!file.exists()){//判断文件夹目录是否存在
file.mkdirs();//如果不存在则创建
}
return file.getAbsolutePath();
}
/**
* 保存图片
* @param Bmp
* @param filePath
*/
public static void saveImage(Bitmap Bmp,String fileName){
try {
File path = new File(getImageDir() ,fileName);// 给新照的照片文件命名
// path.createNewFile();
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(path));
/* 采用压缩转档方法 */
//Bmp.compress(Bitmap.CompressFormat.PNG, 100, bos);
Bmp.compress(Bitmap.CompressFormat.PNG, 80, bos);
/* 调用flush()方法，更新BufferStream */
bos.flush();
/* 结束OutputStream */
bos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static Bitmap compressImage(Bitmap image) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.JPEG, 100, baos);//质量压缩方法，这里100表示不压缩，把压缩后的数据存放到baos中
int options = 80;
while ( baos.toByteArray().length / 1024>100) { //循环判断如果压缩后图片是否大于100kb,大于继续压缩
baos.reset();//重置baos即清空baos
options -= 10;//每次都减少10
image.compress(Bitmap.CompressFormat.JPEG, options, baos);//这里压缩options%，把压缩后的数据存放到baos中
}
ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());//把压缩后的数据baos存放到ByteArrayInputStream中
Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);//把ByteArrayInputStream数据生成图片
return bitmap;
}
public static void saveImage1(Bitmap Bmp,String fileName){
try {
File path = new File(getImageDir() ,fileName);// 给新照的照片文件命名
// path.createNewFile();
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(path));
/* 采用压缩转档方法 */
//Bmp.compress(Bitmap.CompressFormat.PNG, 100, bos);
Bmp.compress(Bitmap.CompressFormat.PNG, 30, bos);
/* 调用flush()方法，更新BufferStream */
bos.flush();
/* 结束OutputStream */
bos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public static Bitmap getThumbnailImage(String fileName ,int w ,int h){
BitmapFactory.Options opts = new BitmapFactory.Options();
// 设置为ture只获取图片大小
opts.inJustDecodeBounds = true;
opts.inPreferredConfig = Bitmap.Config.ARGB_8888;
// 返回为空
String path = getImageDir() + File.separator +fileName;
BitmapFactory.decodeFile(path , opts);
int width = opts.outWidth;
int height = opts.outHeight;
float scaleWidth = 0.f, scaleHeight = 0.f;
if (width > w || height > h) {
// 缩放
scaleWidth = ((float) width) / w;
scaleHeight = ((float) height) / h;
}
opts.inJustDecodeBounds = false;
float scale = Math.max(scaleWidth, scaleHeight);
opts.inSampleSize = (int)scale;
WeakReference<Bitmap> weak = new WeakReference<Bitmap>(BitmapFactory.decodeFile(path, opts));
return Bitmap.createScaledBitmap(weak.get(), w, h, true);
}
/**
*
* @param usedTime 单位：秒
* @return
*/
public static String getUsedTime(int usedTime){
int minute = 0;
int second = 0;
if(usedTime >= 60){
minute = (int) usedTime / 60;
second = (int)(usedTime % 60);
return minute + "分" + second + "秒";
}else{
return "0分" + usedTime + "秒";
}
}
/**
*
* @return
*/
public static String getLocalMacAddress(Context context) {
WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifi.getConnectionInfo();
return info.getMacAddress();
}
@SuppressWarnings("deprecation")
public static void showNotification(Context context,String title, String summary) {
NotificationManager mNotificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification n = new Notification();
n.flags |= Notification.FLAG_SHOW_LIGHTS;
n.flags |= Notification.FLAG_AUTO_CANCEL;
n.defaults = Notification.DEFAULT_ALL;
n.icon = R.drawable.messageremind;
n.when = System.currentTimeMillis();
// Simply open the parent activity
Intent intent = new Intent(context,StartActivity.class);
//broadcastIntent.putExtra(PushConstants.APP_KEY, APPKEY);
PendingIntent pi = PendingIntent.getActivity(context, 0, intent, 0);
// Change the name of the notification here
n.setLatestEventInfo(context, title, summary, pi);
mNotificationManager.notify(0, n);
}
public static String getTimeFormat(long time){
Date date = new Date(time);
SimpleDateFormat dateFormat = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
return dateFormat.format(date);
}
public static Bitmap getimage(String srcPath) {
BitmapFactory.Options newOpts = new BitmapFactory.Options();
//开始读入图片，此时把options.inJustDecodeBounds 设回true了
newOpts.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeFile(srcPath,newOpts);//此时返回bm为空
newOpts.inJustDecodeBounds = false;
int w = newOpts.outWidth;
int h = newOpts.outHeight;
//现在主流手机比较多是800*480分辨率，所以高和宽我们设置为
float hh = 720f;//这里设置高度为800f
float ww = 480f;//这里设置宽度为480f
//缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
int be = 1;//be=1表示不缩放
if (w > h && w > ww) {//如果宽度大的话根据宽度固定大小缩放
be = (int) (newOpts.outWidth / ww);
} else if (w < h && h > hh) {//如果高度高的话根据宽度固定大小缩放
be = (int) (newOpts.outHeight / hh);
}
if (be <= 0)
be = 1;
newOpts.inSampleSize = be;//设置缩放比例
//重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了
bitmap = BitmapFactory.decodeFile(srcPath, newOpts);
return compressImage(bitmap);//压缩好比例大小后再进行质量压缩
}
}