From 772acb4157843c786fb4b029890a13e0b1931bb8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=90=91=E9=87=91=E6=88=90?= <2693239786@qq.com> Date: Mon, 22 May 2023 19:14:11 +0800 Subject: [PATCH] 1 --- .../java/net/micode/notes/data/LoginData.java | 70 +++++++++ .../net/micode/notes/tool/CheckUtils.java | 33 ++++ .../micode/notes/tool/PictureaddUtils.java | 147 ++++++++++++++++++ 3 files changed, 250 insertions(+) create mode 100644 src/Notes-master1/app/src/main/java/net/micode/notes/data/LoginData.java create mode 100644 src/Notes-master1/app/src/main/java/net/micode/notes/tool/CheckUtils.java create mode 100644 src/Notes-master1/app/src/main/java/net/micode/notes/tool/PictureaddUtils.java diff --git a/src/Notes-master1/app/src/main/java/net/micode/notes/data/LoginData.java b/src/Notes-master1/app/src/main/java/net/micode/notes/data/LoginData.java new file mode 100644 index 00000000..2e8cdaf4 --- /dev/null +++ b/src/Notes-master1/app/src/main/java/net/micode/notes/data/LoginData.java @@ -0,0 +1,70 @@ +package net.micode.notes.data; + +import android.content.Context; + +import java.io.FileInputStream; +import java.io.FileOutputStream; +import java.io.IOException; +import java.util.HashMap; + +public class LoginData { + static String fileName = "LoginData"; + private static HashMap loginData = new HashMap(); + + //获取登录数据 + public HashMap getLoginData(){ + return loginData; + } + + //注册时添加 + public static void write(String account,String password,Context context) throws IOException { + FileOutputStream fos = null; + try { + //获取文件的输出流对象fos + fos = context.openFileOutput(fileName, Context.MODE_PRIVATE); + //将数据转换为字节码的形式写入data.txt文件中 + fos.write((account + ":" + password).getBytes()); + } catch (Exception e) { + e.printStackTrace(); + } finally { + try { + if (fos != null) { + fos.close(); //关闭输出流 + } + } catch (IOException e) { + e.printStackTrace(); + } + } + } + + //读文件 + public static void read (Context context){ + String content = ""; + FileInputStream fis = null; + try { + fis = context.openFileInput(fileName); //获取文件的输入流对象fis + byte[] buffer = new byte[fis.available()]; //获取文件长度，创建缓冲区，将输入流对象中的数据转换为字节码的形式 + fis.read(buffer);//通过read()方法读取字节码中的数据，读取到buffer缓冲区 + content = new String(buffer); //将获取的字节码转换为字符串 + String[] infos = content.split(":");//将字符串以“：”分隔后形成一个数组的形式 + loginData.put(infos[0],infos[1]); //将数组中的第一个数据放入userMap集合中 + //将数组中的第二个数据放入userMap集合中 + } catch (Exception e) { + e.printStackTrace(); + } finally { + try { + if (fis != null) { + fis.close(); //关闭输入流 + } + } catch (IOException e) { + e.printStackTrace(); + } + } + } + + + //添加到map + public static void addLoginData (String account, String password){ + loginData.put(account, password); + } +} diff --git a/src/Notes-master1/app/src/main/java/net/micode/notes/tool/CheckUtils.java b/src/Notes-master1/app/src/main/java/net/micode/notes/tool/CheckUtils.java new file mode 100644 index 00000000..a0f3f3d9 --- /dev/null +++ b/src/Notes-master1/app/src/main/java/net/micode/notes/tool/CheckUtils.java @@ -0,0 +1,33 @@ +package net.micode.notes.tool; + +import android.content.Context; + +import net.micode.notes.data.LoginData; + +import java.io.IOException; +import java.util.HashMap; +import java.util.Iterator; +import java.util.Map; + +public class CheckUtils { + public LoginData loginData = new LoginData(); + + public CheckUtils(Context context) throws IOException, ClassNotFoundException { + loginData.read(context); + } + + //验证 + public boolean check(String account, String password){ + HashMap data = loginData.getLoginData(); + Iterator> it = data.entrySet().iterator(); + while(it.hasNext()){ + Map.Entry entry = it.next(); + String account1 = entry.getKey(); + String password1 = entry.getValue(); + if(account1.equals(account) && password1.equals(password)){ + return true; + } + } + return false; + } +} diff --git a/src/Notes-master1/app/src/main/java/net/micode/notes/tool/PictureaddUtils.java b/src/Notes-master1/app/src/main/java/net/micode/notes/tool/PictureaddUtils.java new file mode 100644 index 00000000..6beb1fc8 --- /dev/null +++ b/src/Notes-master1/app/src/main/java/net/micode/notes/tool/PictureaddUtils.java @@ -0,0 +1,147 @@ +package net.micode.notes.tool; + +import android.content.Context; +import android.database.Cursor; +import android.graphics.Bitmap; +import android.graphics.BitmapFactory; +import android.net.Uri; +import android.os.Build; +import android.provider.DocumentsContract; +import android.provider.MediaStore; +import android.text.Editable; +import android.text.Spannable; +import android.text.SpannableString; +import android.text.style.ImageSpan; +import android.util.Log; + +import net.micode.notes.ui.NoteEditText; + +public class PictureaddUtils { + + public void convertToImage(NoteEditText noteEditText, String TAG, Context NoteEditActivity) { + //获取当前的edit + Editable editable = noteEditText.getText();//1.获取text + String noteText = editable.toString(); //2.将note内容转换为字符串 + int length = editable.length(); //内容的长度 + //3.截取img片段 [local]+uri+[local]，提取uri + for(int i = 0; i < length; i++) { + for(int j = i; j < length; j++) { + String img_fragment = noteText.substring(i, j+1); //img_fragment：关于图片路径的片段 + if(img_fragment.length() > 15 && img_fragment.endsWith("[/local]") && img_fragment.startsWith("[local]")){ + int limit = 7; //[local]为7个字符 + //[local][/local]共15个字符，剩下的为真正的path长度 + int len = img_fragment.length()-15; + //从[local]之后的len个字符就是path + String path = img_fragment.substring(limit,limit+len);//获取到了图片路径 + Bitmap bitmap = null; + Log.d(TAG, "图片的路径是："+path); + try { + bitmap = BitmapFactory.decodeFile(path);//将图片路径解码为图片格式 + } catch (Exception e) { + e.printStackTrace(); + } + if(bitmap!=null){ //若图片存在 + Log.d(TAG, "图片不为null"); + ImageSpan imageSpan = new ImageSpan(NoteEditActivity, bitmap); + //4.创建一个SpannableString对象，以便插入用ImageSpan对象封装的图像 + String ss = "[local]" + path + "[/local]"; + SpannableString spannableString = new SpannableString(ss); + //5.将指定的标记对象附加到文本的开始...结束范围 + spannableString.setSpan(imageSpan, 0, ss.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); + Log.d(TAG, "Create spannable string success!"); + Editable edit_text = noteEditText.getEditableText(); + edit_text.delete(i,i+len+15); //6.删掉图片路径的文字 + edit_text.insert(i, spannableString); //7.在路径的起始位置插入图片 + } + } + } + } + } + + //获取文件的real path + public String getPath(final Context context, final Uri uri) { + + final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; + + // DocumentProvider + if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { + // ExternalStorageProvider +// if (isExternalStorageDocument(uri)) { +// final String docId = DocumentsContract.getDocumentId(uri); +// final String[] split = docId.split(":"); +// final String type = split[0]; +// +// if ("primary".equalsIgnoreCase(type)) { +// return Environment.getExternalStorageDirectory() + "/" + split[1]; +// } +// } +// // DownloadsProvider +// else if (isDownloadsDocument(uri)) { +// final String id = DocumentsContract.getDocumentId(uri); +// final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)); +// return getDataColumn(context, contentUri, null, null); +// } + // MediaProvider +// else + if (isMediaDocument(uri)) { + final String docId = DocumentsContract.getDocumentId(uri); + final String[] split = docId.split(":"); + final String type = split[0]; + + Uri contentUri = null; + if ("image".equals(type)) { + contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; + } + + final String selection = "_id=?"; + final String[] selectionArgs = new String[]{split[1]}; + + return getDataColumn(context, contentUri, selection, selectionArgs); + } + } + // Media + else if ("content".equalsIgnoreCase(uri.getScheme())) { + return getDataColumn(context, uri, null, null); + } + // File + else if ("file".equalsIgnoreCase(uri.getScheme())) { + return uri.getPath(); + } + return null; + } + + //获取数据列_获取此 Uri 的数据列的值。这对MediaStore Uris 和其他基于文件的 ContentProvider。 + public String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) { + + Cursor cursor = null; + final String column = "_data"; + final String[] projection = {column}; + + try { + cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); + if (cursor != null && cursor.moveToFirst()) { + final int column_index = cursor.getColumnIndexOrThrow(column); + return cursor.getString(column_index); + } + } finally { + if (cursor != null) + cursor.close(); + } + return null; + } + + //是否为外部存储文件 +// public boolean isExternalStorageDocument(Uri uri) { +// return "com.android.externalstorage.documents".equals(uri.getAuthority()); +// } +// +// //是否为下载文件 +// public boolean isDownloadsDocument(Uri uri) { +// return "com.android.providers.downloads.documents".equals(uri.getAuthority()); +// } + + //是否为媒体文件 + public boolean isMediaDocument(Uri uri) { + return "com.android.providers.media.documents".equals(uri.getAuthority()); + } +}