android實(shí)現(xiàn)上傳本地圖片到網(wǎng)絡(luò)功能
更新時(shí)間：2017年09月28日 08:36:47 作者：程澤翔
這篇文章主要為大家詳細(xì)介紹了android實(shí)現(xiàn)上傳本地圖片到網(wǎng)絡(luò)功能，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下
本文實(shí)例為大家分享了android上傳本地圖片到網(wǎng)絡(luò)的具體代碼，供大家參考，具體內(nèi)容如下
首先這里用到了Okhttp 所以需要一個(gè)依賴：
compile 'com.squareup.okhttp3:okhttp:3.9.0'
xml布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent"
tools:context="com.bwei.czx.czx10.MainActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/photo"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/camear"/>
</LinearLayout>
AndroidManifest.xml中：權(quán)限
<uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
MainActivity中：
oncreat:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.photo).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
toPhoto();
}
});
findViewById(R.id.camear).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
toCamera();
}
});
}
和oncreat同級(jí)的方法：
public void postFile(File file){
// sdcard/dliao/aaa.jpg
String path = file.getAbsolutePath() ;
String [] split = path.split("\\/");
MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");
OkHttpClient client = new OkHttpClient();
RequestBody requestBody = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
// file
.addFormDataPart("imageFileName",split[split.length-1])
.addFormDataPart("image",split[split.length-1],RequestBody.create(MEDIA_TYPE_PNG,file))
.build();
Request request = new Request.Builder().post(requestBody).url("http://qhb.2dyt.com/Bwei/upload").build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
System.out.println("response = " + response.body().string());
}
});
}
static final int INTENTFORCAMERA = 1 ;
static final int INTENTFORPHOTO = 2 ;
public String LocalPhotoName;
public String createLocalPhotoName() {
LocalPhotoName = System.currentTimeMillis() + "face.jpg";
return LocalPhotoName ;
}
public void toCamera(){
try {
Intent intentNow = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Uri uri = null ;
// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { //針對(duì)Android7.0，需要通過(guò)FileProvider封裝過(guò)的路徑，提供給外部調(diào)用
// uri = FileProvider.getUriForFile(UploadPhotoActivity.this, "com.bw.dliao", SDCardUtils.getMyFaceFile(createLocalPhotoName()));//通過(guò)FileProvider創(chuàng)建一個(gè)content類型的Uri，進(jìn)行封裝
// }else {
uri = Uri.fromFile(SDCardUtils.getMyFaceFile(createLocalPhotoName())) ;
// }
intentNow.putExtra(MediaStore.EXTRA_OUTPUT, uri);
startActivityForResult(intentNow, INTENTFORCAMERA);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 打開(kāi)相冊(cè)
*/
public void toPhoto(){
try {
createLocalPhotoName();
Intent getAlbum = new Intent(Intent.ACTION_GET_CONTENT);
getAlbum.setType("image/*");
startActivityForResult(getAlbum, INTENTFORPHOTO);
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case INTENTFORPHOTO:
//相冊(cè)
try {
// 必須這樣處理，不然在4.4.2手機(jī)上會(huì)出問(wèn)題
Uri originalUri = data.getData();
File f = null;
if (originalUri != null) {
f = new File(SDCardUtils.photoCacheDir, LocalPhotoName);
String[] proj = {MediaStore.Images.Media.DATA};
Cursor actualimagecursor = this.getContentResolver().query(originalUri, proj, null, null, null);
if (null == actualimagecursor) {
if (originalUri.toString().startsWith("file:")) {
File file = new File(originalUri.toString().substring(7, originalUri.toString().length()));
if(!file.exists()){
//地址包含中文編碼的地址做utf-8編碼
originalUri = Uri.parse(URLDecoder.decode(originalUri.toString(),"UTF-8"));
file = new File(originalUri.toString().substring(7, originalUri.toString().length()));
}
FileInputStream inputStream = new FileInputStream(file);
FileOutputStream outputStream = new FileOutputStream(f);
copyStream(inputStream, outputStream);
}
} else {
// 系統(tǒng)圖庫(kù)
int actual_image_column_index = actualimagecursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
actualimagecursor.moveToFirst();
String img_path = actualimagecursor.getString(actual_image_column_index);
if (img_path == null) {
InputStream inputStream = this.getContentResolver().openInputStream(originalUri);
FileOutputStream outputStream = new FileOutputStream(f);
copyStream(inputStream, outputStream);
} else {
File file = new File(img_path);
FileInputStream inputStream = new FileInputStream(file);
FileOutputStream outputStream = new FileOutputStream(f);
copyStream(inputStream, outputStream);
}
}
Bitmap bitmap = ImageResizeUtils.resizeImage(f.getAbsolutePath(), 1080);
int width = bitmap.getWidth();
int height = bitmap.getHeight();
FileOutputStream fos = new FileOutputStream(f.getAbsolutePath());
if (bitmap != null) {
if (bitmap.compress(Bitmap.CompressFormat.JPEG, 85, fos)) {
fos.close();
fos.flush();
}
if (!bitmap.isRecycled()) {
bitmap.isRecycled();
}
System.out.println("f = " + f.length());
postFile(f);
}
}
} catch (Exception e) {
e.printStackTrace();
}
break;
case INTENTFORCAMERA:
// 相機(jī)
try {
//file 就是拍照完 得到的原始照片
File file = new File(SDCardUtils.photoCacheDir, LocalPhotoName);
Bitmap bitmap = ImageResizeUtils.resizeImage(file.getAbsolutePath(), 1080);
int width = bitmap.getWidth();
int height = bitmap.getHeight();
FileOutputStream fos = new FileOutputStream(file.getAbsolutePath());
if (bitmap != null) {
if (bitmap.compress(Bitmap.CompressFormat.JPEG, 85, fos)) {
fos.close();
fos.flush();
}
if (!bitmap.isRecycled()) {
//通知系統(tǒng) 回收bitmap
bitmap.isRecycled();
}
System.out.println("f = " + file.length());
postFile(file);
}
} catch (Exception e) {
e.printStackTrace();
}
break;
}
}
public static void copyStream(InputStream inputStream, OutputStream outStream) throws Exception {
try {
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inputStream.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
outStream.flush();
} catch (IOException e) {
e.printStackTrace();
}finally {
if(inputStream != null){
inputStream.close();
}
if(outStream != null){
outStream.close();
}
}
}
ImageResizeUtils中：
package com.bwei.czx.czx10;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.media.ExifInterface;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import static android.graphics.BitmapFactory.decodeFile;
/**
* Created by czx on 2017/9/27.
*/
public class ImageResizeUtils {
/**
* 照片路徑
* 壓縮后 寬度的尺寸
* @param path
* @param specifiedWidth
*/
public static Bitmap resizeImage(String path, int specifiedWidth) throws Exception {
Bitmap bitmap = null;
FileInputStream inStream = null;
File f = new File(path);
System.out.println(path);
if (!f.exists()) {
throw new FileNotFoundException();
}
try {
inStream = new FileInputStream(f);
int degree = readPictureDegree(path);
BitmapFactory.Options opt = new BitmapFactory.Options();
//照片不加載到內(nèi)存 只能讀取照片邊框信息
opt.inJustDecodeBounds = true;
// 獲取這個(gè)圖片的寬和高
decodeFile(path, opt); // 此時(shí)返回bm為空
int inSampleSize = 1;
final int width = opt.outWidth;
// width 照片的原始寬度 specifiedWidth 需要壓縮的寬度
// 1000 980
if (width > specifiedWidth) {
inSampleSize = (int) (width / (float) specifiedWidth);
}
// 按照 565 來(lái)采樣 一個(gè)像素占用2個(gè)字節(jié)
opt.inPreferredConfig = Bitmap.Config.RGB_565;
// 圖片加載到內(nèi)存
opt.inJustDecodeBounds = false;
// 等比采樣
opt.inSampleSize = inSampleSize;
// opt.inPurgeable = true;
// 容易導(dǎo)致內(nèi)存溢出
bitmap = BitmapFactory.decodeStream(inStream, null, opt);
// bitmap = BitmapFactory.decodeFile(path, opt);
if (inStream != null) {
try {
inStream.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
inStream = null;
}
}
if (bitmap == null) {
return null;
}
Matrix m = new Matrix();
if (degree != 0) {
//給Matrix 設(shè)置旋轉(zhuǎn)的角度
m.setRotate(degree);
bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, true);
}
float scaleValue = (float) specifiedWidth / bitmap.getWidth();
// 等比壓縮
m.setScale(scaleValue, scaleValue);
bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, true);
return bitmap;
} catch (OutOfMemoryError e) {
e.printStackTrace();
return null;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 讀取圖片屬性：旋轉(zhuǎn)的角度
*
* @param path 源信息
* 圖片絕對(duì)路徑
* @return degree旋轉(zhuǎn)的角度
*/
public static int readPictureDegree(String path) {
int degree = 0;
try {
ExifInterface exifInterface = new ExifInterface(path);
int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
degree = 90;
break;
case ExifInterface.ORIENTATION_ROTATE_180:
degree = 180;
break;
case ExifInterface.ORIENTATION_ROTATE_270:
degree = 270;
break;
}
} catch (IOException e) {
e.printStackTrace();
}
return degree;
}
public static void copyStream(InputStream inputStream, OutputStream outStream) throws Exception {
try {
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inputStream.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
outStream.flush();
} catch (IOException e) {
e.printStackTrace();
}finally {
if(inputStream != null){
inputStream.close();
}
if(outStream != null){
outStream.close();
}
}
}
}
SDcardutils中：
package com.bwei.czx.czx10;
import android.os.Environment;
import android.os.StatFs;
import java.io.File;
import java.io.IOException;
/**
* Created by czx on 2017/9/27.
*/
public class SDCardUtils {
public static final String DLIAO = "dliao" ;
public static File photoCacheDir = SDCardUtils.createCacheDir(Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + DLIAO);
public static String cacheFileName = "myphototemp.jpg";
public static boolean isSDCardExist() {
if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
return true;
} else {
return false;
}
}
public static void delFolder(String folderPath) {
try {
delAllFile(folderPath);
String filePath = folderPath;
filePath = filePath.toString();
File myFilePath = new File(filePath);
myFilePath.delete();
} catch (Exception e) {
e.printStackTrace();
}
}
public static boolean delAllFile(String path) {
boolean flag = false;
File file = new File(path);
if (!file.exists()) {
return flag;
}
if (!file.isDirectory()) {
return flag;
}
String[] tempList = file.list();
File temp = null;
for (int i = 0; i < tempList.length; i++) {
if (path.endsWith(File.separator)) {
temp = new File(path + tempList[i]);
} else {
temp = new File(path + File.separator + tempList[i]);
}
if (temp.isFile()) {
temp.delete();
}
if (temp.isDirectory()) {
delAllFile(path + "/" + tempList[i]);// 先刪除文件夾里面的文件
delFolder(path + "/" + tempList[i]);// 再刪除空文件夾
flag = true;
}
}
return flag;
}
public static boolean deleteOldAllFile(final String path) {
try {
new Thread(new Runnable() {
@Override
public void run() {
delAllFile(Environment.getExternalStorageDirectory() + File.separator + DLIAO);
}
}).start();
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 給定字符串獲取文件夾
*
* @param dirPath
* @return 創(chuàng)建的文件夾的完整路徑
*/
public static File createCacheDir(String dirPath) {
File dir = new File(dirPath);;
if(isSDCardExist()){
if (!dir.exists()) {
dir.mkdirs();
}
}
return dir;
}
public static File createNewFile(File dir, String fileName) {
File f = new File(dir, fileName);
try {
// 出現(xiàn)過(guò)目錄不存在的情況，重新創(chuàng)建
if (!dir.exists()) {
dir.mkdirs();
}
f.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
return f;
}
public static File getCacheFile() {
return createNewFile(photoCacheDir, cacheFileName);
}
public static File getMyFaceFile(String fileName) {
return createNewFile(photoCacheDir, fileName);
}
/**
* 獲取SDCARD剩余存儲(chǔ)空間
*
* @return 0 sd已被掛載占用 1 sd卡內(nèi)存不足 2 sd可用
*/
public static int getAvailableExternalStorageSize() {
if (isSDCardExist()) {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
long memorySize = availableBlocks * blockSize;
if(memorySize < 10*1024*1024){
return 1;
}else{
return 2;
}
} else {
return 0;
}
}
}
這樣就可以上傳圖片到網(wǎng)絡(luò)了！
以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。
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