相册获取图片<>
case R.id.xiangce:
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
// 开启传递，请求码为PHOTO_REQUEST_GALLERY(400)
startActivityForResult(intent, 400);
break;
startActivityForResult方法中调用
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 400 ){
Uri uri = data.getData();
shangchuanIv.setImageURI(uri);
try {
/**
* 设置相册图片在页面上
* shangchuanIv.setImageURI(uri);
* shangchuanIv.setImageBitmap(bitmap);
*/
//设置相册图片
Bitmap bitmap = BitmapFactory.decodeStream(
getContentResolver().openInputStream(uri));
shangchuanIv.setImageBitmap(bitmap);
//封装工具类
/**
* 根据Uri获取图片的绝对路径
*/
String path = StringUtil.getRealPathFromUri(this,uri);
Log.i("dt",path);
//保存用户uid 所谓的一种标识,方便认知客户
loginPresentle.requestData( uid+"",path);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
StringUtil工具类<内含方法已经注解>
public class StringUtil {
/**
* 根据Uri获取图片的绝对路径
*
* @param context 上下文对象
* @param uri 图片的Uri
* @return 如果Uri对应的图片存在, 那么返回该图片的绝对路径, 否则返回null
*/
public static String getRealPathFromUri(Context context, Uri uri) {
int sdkVersion = Build.VERSION.SDK_INT;
if (sdkVersion >= 19) { // api >= 19
return getRealPathFromUriAboveApi19(context, uri);
} else { // api < 19
return getRealPathFromUriBelowAPI19(context, uri);
}
}
/**
* 适配api19以下(不包括api19),根据uri获取图片的绝对路径
*
* @param context 上下文对象
* @param uri 图片的Uri
* @return 如果Uri对应的图片存在, 那么返回该图片的绝对路径, 否则返回null
*/
private static String getRealPathFromUriBelowAPI19(Context context, Uri uri) {
return getDataColumn(context, uri, null, null);
}
/**
* 适配api19及以上,根据uri获取图片的绝对路径
*
* @param context 上下文对象
* @param uri 图片的Uri
* @return 如果Uri对应的图片存在, 那么返回该图片的绝对路径, 否则返回null
*/
@RequiresApi(api = Build.VERSION_CODES.KITKAT)
private static String getRealPathFromUriAboveApi19(Context context, Uri uri) {
String filePath = null;
if (DocumentsContract.isDocumentUri(context, uri)) {
// 如果是document类型的 uri, 则通过document id来进行处理
String documentId = DocumentsContract.getDocumentId(uri);
if (isMediaDocument(uri)) { // MediaProvider
// 使用':'分割
String id = documentId.split(":")[1];
String selection = MediaStore.Images.Media._ID + "=?";
String[] selectionArgs = {id};
filePath = getDataColumn(context, MediaStore.Images.Media.EXTERNAL_CONTENT_URI, selection, selectionArgs);
} else if (isDownloadsDocument(uri)) { // DownloadsProvider
Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(documentId));
filePath = getDataColumn(context, contentUri, null, null);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {
// 如果是 content 类型的 Uri
filePath = getDataColumn(context, uri, null, null);
} else if ("file".equals(uri.getScheme())) {
// 如果是 file 类型的 Uri,直接获取图片对应的路径
filePath = uri.getPath();
}
return filePath;
}
/**
* 获取数据库表中的 _data 列，即返回Uri对应的文件路径
*
* @return
*/
private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
String path = null;
String[] projection = new String[]{MediaStore.Images.Media.DATA};
Cursor cursor = null;
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
int columnIndex = cursor.getColumnIndexOrThrow(projection[0]);
path = cursor.getString(columnIndex);
}
} catch (Exception e) {
if (cursor != null) {
cursor.close();
}
}
return path;
}
/**
* @param uri the Uri to check
* @return Whether the Uri authority is MediaProvider
*/
private static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
/**
* @param uri the Uri to check
* @return Whether the Uri authority is DownloadsProvider
*/
private static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
}
loginPresentle <mvp中的p层>
开线程接口回调已省
public void requestData(final String s,final String path) {
new Thread(new Runnable() {
@Override
public void run() {
String shangchuan = MyModel.shangchuan(s, path);
Message message = new Message();
message.obj = shangchuan ;
handler2.sendMessage(message);
}
}).start();
}
Model <mvp中的m层>
public static String shangchuan(String s, String path) {
//调用postFile方法
File file = new File(path);
String resultString = OkHttpUtills.postFile("http://www.zhaoapi.cn/file/upload",
new String[]{"uid"},new String[]{s},
"file",file);
return resultString;
}
OkHttpUtills工具类
用来上传表单,json或者解析网络地址数据的封装类
public class OkHttpUtills {
//传递一个网络接口进来
public static String get(String urlString){
OkHttpClient okHttpClient = new OkHttpClient();
Request request = new Request.Builder().url(urlString).get().build();
try {
Response response = okHttpClient.newCall(request).execute();
return response.body().string();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
//上传表单
public static String postForm(String url,String[] name,String[] value){
OkHttpClient okHttpClient = new OkHttpClient();
FormBody.Builder formBuild = new FormBody.Builder();
for (int i = 0; i < name.length; i++) {
formBuild.add(name[i],value[i]);
}
Request request = new Request.Builder().url(url).post(formBuild.build()).build();
try {
Response response = okHttpClient.newCall(request).execute();
return response.body().string();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
//上传文件
public static String postFile(String url,String[] name,String[] value,String fileParamName,File file){
OkHttpClient okHttpClient = new OkHttpClient();
MultipartBody.Builder requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
if(file != null){
// MediaType.parse() 里面是上传的文件类型。
RequestBody body = RequestBody.create(MediaType.parse("image/*"), file);
String filename = file.getName();
// 参数分别为: 文件参数名 ，文件名称 ， RequestBody
requestBody.addFormDataPart(fileParamName, ".jpg", body);
}
if (name!=null) {
for (int i = 0; i < name.length; i++) {
requestBody.addFormDataPart(name[i], value[i]);
}
}
Request request = new Request.Builder().url(url).post(requestBody.build()).build();
try {
Response response = okHttpClient.newCall(request).execute();
if (response.code()==200) {
//解析成功string返回
return response.body().string();
}
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
//上传Json
public static String postJson(String url,String jsonString){
OkHttpClient okHttpClient = new OkHttpClient();
RequestBody requestBody = RequestBody.create(MediaType.parse("application/json"),jsonString);
Request request = new Request.Builder().url(url).post(requestBody).build();
try {
Response response = okHttpClient.newCall(request).execute();
return response.body().string();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
}
效果
在登录成功的时候保存用户uid以及用户的所有信息
另一页面
glide解析图片的地址就可以解析图片了…