團隊開發衝刺第十二天
- 2020 年 4 月 27 日
- 筆記
今天實現的功能：
完成昨天的bug，同時修復之前的點贊數和評論數的獲取不匹配的問題，成功完成消息的提醒。同時完成用戶介面的頭像選擇（拍照，從圖庫中選擇）
遇到的問題：
在編寫的過程中，昨天就存在Android8以上的消息一直不顯示的問題，今天早上找了一個集成的notification成功展示出來，在做頭像選擇倒是沒什麼問題，之前就做過
但是頭像的上傳，暫時沒有頭緒。
明天的安排：
將頭像上傳到伺服器端，然後存入資料庫中。有時間開始準備搜索框的實現。
今日修復：
修復點贊與評論的數目不對應的bug，從適配器上重新獲取伺服器端的數據（不再使用執行緒訪問，有延遲導致數目不對）
主要是javaweb後台的程式碼，這裡就不再展示
完成消息的提醒：（有聲音，震動，點擊後到一個活動中，右側有圖片，可以滑動刪除，針對長文本展示，可拉伸）
private MeViewModel mViewModel; private View view; private TextView textViewname,textViewguanzhu,textViewfan; private ImageView photoimageView; private Button buttonmessage; private Uri imageUri; public static final int TAKE_PHOTO =1; public static final int CHOOSE_PHOTO=2; public static MeFragment newInstance() { return new MeFragment(); } public String getUsername(){ return MainActivity.getUserName(); } @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { view=inflater.inflate(R.layout.me_fragment, container, false); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); mViewModel = ViewModelProviders.of(this).get(MeViewModel.class); // TODO: Use the ViewModel textViewname=view.findViewById(R.id.username); textViewfan=view.findViewById(R.id.fannumber); textViewguanzhu=view.findViewById(R.id.guanzhunumber); photoimageView=view.findViewById(R.id.userphoto); buttonmessage=view.findViewById(R.id.button); Log.i("我的頁面", getUsername()); textViewname.setText(getUsername()); photoimageView.setOnClickListener(l); buttonmessage.setOnClickListener(l); } View.OnClickListener l=new View.OnClickListener() { @Override public void onClick(View v) { switch (v.getId()){ case R.id.button: Intent intent = new Intent(view.getContext(), LoginActivity.class); PendingIntent pendingIntent = PendingIntent.getActivity(view.getContext(), 0, intent, 0); NotificationUtils notificationUtils=new NotificationUtils(view.getContext()); notificationUtils .setContentIntent(pendingIntent) .sendNotification(3,"這個是標題3", "這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長",R.drawable.qq); break; case R.id.userphoto: showTypeDialog(); } } };
頭像的選擇：（拍照與圖庫）
package com.example.newbsh.UI.user; import androidx.core.app.ActivityCompat; import androidx.core.content.ContextCompat; import androidx.core.content.FileProvider; import androidx.lifecycle.ViewModelProviders; import android.Manifest; import android.annotation.TargetApi; import android.app.AlertDialog; import android.app.PendingIntent; import android.content.ContentResolver; import android.content.ContentUris; import android.content.ContentValues; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Build; import android.os.Bundle; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import androidx.fragment.app.Fragment; import android.os.Environment; import android.provider.DocumentsContract; import android.provider.MediaStore; import android.text.TextUtils; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast; import com.example.newbsh.HttpUtil.HttpUtil; import com.example.newbsh.HttpUtil.NotificationUtils; import com.example.newbsh.Login.LoginActivity; import com.example.newbsh.MainActivity; import com.example.newbsh.R; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.util.HashMap; import java.util.Map; import static android.app.Activity.RESULT_OK; public class MeFragment extends Fragment { private MeViewModel mViewModel; private View view; private TextView textViewname,textViewguanzhu,textViewfan; private ImageView photoimageView; private Button buttonmessage; private Uri imageUri; public static final int TAKE_PHOTO =1; public static final int CHOOSE_PHOTO=2; public static MeFragment newInstance() { return new MeFragment(); } public String getUsername(){ return MainActivity.getUserName(); } @Override public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { view=inflater.inflate(R.layout.me_fragment, container, false); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); mViewModel = ViewModelProviders.of(this).get(MeViewModel.class); // TODO: Use the ViewModel textViewname=view.findViewById(R.id.username); textViewfan=view.findViewById(R.id.fannumber); textViewguanzhu=view.findViewById(R.id.guanzhunumber); photoimageView=view.findViewById(R.id.userphoto); buttonmessage=view.findViewById(R.id.button); Log.i("我的頁面", getUsername()); textViewname.setText(getUsername()); photoimageView.setOnClickListener(l); buttonmessage.setOnClickListener(l); } View.OnClickListener l=new View.OnClickListener() { @Override public void onClick(View v) { switch (v.getId()){ case R.id.button: Intent intent = new Intent(view.getContext(), LoginActivity.class); PendingIntent pendingIntent = PendingIntent.getActivity(view.getContext(), 0, intent, 0); NotificationUtils notificationUtils=new NotificationUtils(view.getContext()); notificationUtils .setContentIntent(pendingIntent) .sendNotification(3,"這個是標題3", "這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長這個是內容很長",R.drawable.qq); break; case R.id.userphoto: showTypeDialog(); } } }; /* 頭像切換程式碼 */ private void showTypeDialog() { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); final AlertDialog dialog = builder.create(); final View view = View.inflate(getActivity(), R.layout.dialog_select_photo, null); TextView tv_select_gallery = (TextView) view.findViewById(R.id.tv_select_gallery); TextView tv_select_camera = (TextView) view.findViewById(R.id.tv_select_camera); tv_select_gallery.setOnClickListener(new View.OnClickListener() {// 在相冊中選取 @Override public void onClick(View v) { if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) { ActivityCompat.requestPermissions(getActivity(), new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1); } else { openAlbum(); } dialog.dismiss(); } }); tv_select_camera.setOnClickListener(new View.OnClickListener() {// 調用照相機 @Override public void onClick(View v) { File outputImage =new File(view.getContext().getExternalCacheDir(),"output_image.jpg"); try { if(outputImage.exists()){ outputImage.delete(); } outputImage.createNewFile(); } catch (IOException e) { e.printStackTrace(); } if(Build.VERSION.SDK_INT>=24){ imageUri= FileProvider.getUriForFile(view.getContext(), "com.example.cameraalbumtest.fileprovider1",outputImage); }else{ imageUri=Uri.fromFile(outputImage); } //啟動相機程式 Intent intent=new Intent("android.media.action.IMAGE_CAPTURE"); intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri); startActivityForResult(intent,TAKE_PHOTO); dialog.dismiss(); } }); dialog.setView(view); dialog.show(); } private void openAlbum() { Intent intent=new Intent("android.intent.action.GET_CONTENT"); intent.setType("image/*"); startActivityForResult(intent,CHOOSE_PHOTO); } @Override public void onRequestPermissionsResult(int requestCode,String[] permissions,int[] grantResults) { switch (requestCode) { case 1: if(grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED) { openAlbum(); } else { Toast.makeText(view.getContext(),"你否定了相冊請求",Toast.LENGTH_SHORT).show(); } break; default: } } /** * user轉換為file文件 *返回值為file類型 * @param uri * @return */ public static File uriToFile(Uri uri,Context context) { String path = null; if ("file".equals(uri.getScheme())) { path = uri.getEncodedPath(); if (path != null) { path = Uri.decode(path); ContentResolver cr = context.getContentResolver(); StringBuffer buff = new StringBuffer(); buff.append("(").append(MediaStore.Images.ImageColumns.DATA).append("=").append("'" + path + "'").append(")"); Cursor cur = cr.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, new String[] { MediaStore.Images.ImageColumns._ID, MediaStore.Images.ImageColumns.DATA }, buff.toString(), null, null); int index = 0; int dataIdx = 0; for (cur.moveToFirst(); !cur.isAfterLast(); cur.moveToNext()) { index = cur.getColumnIndex(MediaStore.Images.ImageColumns._ID); index = cur.getInt(index); dataIdx = cur.getColumnIndex(MediaStore.Images.ImageColumns.DATA); path = cur.getString(dataIdx); } cur.close(); if (index == 0) { } else { Uri u = Uri.parse("content://media/external/images/media/" + index); System.out.println("temp uri is :" + u); } } if (path != null) { return new File(path); } } else if ("content".equals(uri.getScheme())) { // 4.2.2以後 String[] proj = { MediaStore.Images.Media.DATA }; Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null); if (cursor.moveToFirst()) { int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); path = cursor.getString(columnIndex); } cursor.close(); return new File(path); } else { //Log.i(TAG, "Uri Scheme:" + uri.getScheme()); } return null; } /* 獲取uri的真實路徑 */ /** * 根據Uri獲取文件真實地址 */ public static String getRealFilePath(Context context, Uri uri) { if (null == uri) return null; final String scheme = uri.getScheme(); String realPath = null; if (scheme == null) realPath = uri.getPath(); else if (ContentResolver.SCHEME_FILE.equals(scheme)) { realPath = uri.getPath(); } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) { Cursor cursor = context.getContentResolver().query(uri, new String[]{MediaStore.Images.ImageColumns.DATA}, null, null, null); if (null != cursor) { if (cursor.moveToFirst()) { int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA); if (index > -1) { realPath = cursor.getString(index); } } cursor.close(); } } if (TextUtils.isEmpty(realPath)) { if (uri != null) { String uriString = uri.toString(); int index = uriString.lastIndexOf("/"); String imageName = uriString.substring(index); File storageDir; storageDir = Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES); File file = new File(storageDir, imageName); if (file.exists()) { realPath = file.getAbsolutePath(); } else { storageDir = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES); File file1 = new File(storageDir, imageName); realPath = file1.getAbsolutePath(); } } } return realPath; } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode){ case TAKE_PHOTO: if(resultCode==RESULT_OK){ try { Bitmap bitmap= BitmapFactory.decodeStream(view.getContext().getContentResolver().openInputStream(imageUri)); // String ans=imageUri.toString(); // bean.image=ans; // muserOperator.updateImage(bean); Log.i("imguri", bitmap.toString()); //photoimageView.setImageURI(imageUri); photoimageView.setImageBitmap(bitmap); /* 圖片上傳 */ String uri=getRealFilePath(view.getContext(),imageUri); File file=new File(uri); Map<String,File> map=new HashMap<>(); map.put("photo",file); String ans= HttpUtil.sendPostImg("//localhost:8080/BaiXiaoSheng/downloadimg?username=123",map); if (ans.equals("yes")){ Toast.makeText(view.getContext(),"上傳成功",Toast.LENGTH_LONG).show(); }else{ Toast.makeText(view.getContext(),"上傳失敗",Toast.LENGTH_LONG).show(); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } break; case CHOOSE_PHOTO: if(resultCode==RESULT_OK){ if(Build.VERSION.SDK_INT>=19){ handleImageOnKitKat(data); }else{ handleImageBeforeKitKat(data); } } break; default: break; } } @TargetApi(19) private void handleImageOnKitKat(Intent data) { String imagePath=null; Uri uri=data.getData(); Log.i("真實uri", uri.toString()); if(DocumentsContract.isDocumentUri(view.getContext(),uri)) { //如果是document類型的uri則通過document id處理 String docId= DocumentsContract.getDocumentId(uri); if("com.android.providers.media.documents".equals(uri.getAuthority())) { String id=docId.split(":")[1];//解析為數字格式的id String selection= MediaStore.Images.Media._ID +"="+id; imagePath=getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,selection); } else if("com.android.providers.downloads.documents".equals(uri.getAuthority())) { Uri contentUri= ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),Long.valueOf(docId)); imagePath=getImagePath(contentUri,null); } else if("content".equalsIgnoreCase(uri.getScheme())) { //如果是content類型的uri則使用普通方式處理 imagePath=getImagePath(uri,null); } else if("file".equalsIgnoreCase(uri.getScheme())) { //如果是file類型的uri直接獲取圖片路徑就好 imagePath=uri.getPath(); } displayImage(imagePath);//根據圖片的路徑顯示圖片 } } private void handleImageBeforeKitKat(Intent data) { Uri uri=data.getData(); Log.i("真實uri", uri.toString()); String imagePath=getImagePath(uri,null); displayImage(imagePath); } private String getImagePath(Uri uri,String selection) { String path=null; //通過uri和selection來獲取真實的圖片路徑 Cursor cursor=view.getContext().getContentResolver().query(uri,null,selection,null,null); if(cursor!=null) { if(cursor.moveToFirst()) { path=cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA)); } cursor.close(); } return path; } private void displayImage(String imagePath) { if(imagePath!=null) { //Bitmap bitmap= BitmapFactory.decodeFile(imagePath); //imageView.setImageBitmap(bitmap); Uri ans=getImageContentUri(view.getContext(),imagePath); Log.i("imgUri", ans.toString()); //保存圖片到網址 photoimageView.setImageURI(ans); } else { Toast.makeText(view.getContext(),"獲取圖片失敗", Toast.LENGTH_SHORT).show(); } } /** * 將圖片轉換成Uri * @param context 傳入上下文參數 * @param path 圖片的路徑 * @return 返回的就是一個Uri對象 */ public static Uri getImageContentUri(Context context, String path) { Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, new String[] { MediaStore.Images.Media._ID }, MediaStore.Images.Media.DATA + "=? ", new String[] { path }, null); if (cursor != null && cursor.moveToFirst()) { int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID)); Uri baseUri = Uri.parse("content://media/external/images/media"); return Uri.withAppendedPath(baseUri, "" + id); } else { // 如果圖片不在手機的共享圖片資料庫，就先把它插入。 if (new File(path).exists()) { ContentValues values = new ContentValues(); values.put(MediaStore.Images.Media.DATA, path); return context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); } else { return null; } } } }
