图片选取问题处理

朱显松
1 parent 93d57aa7
Showing 2 changed files with 297 additions and 21 deletions
app/src/main/java/com/cnlive/im/ui/ChatRoomActivity.java
app/src/main/java/com/cnlive/im/util/UploadImageUtils.java
@@ -2,17 +2,13 @@ package com.cnlive.im.ui;
  
 import android.Manifest;
 import android.app.Activity;
-import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
-import android.database.Cursor;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
-import android.provider.ContactsContract;
-import android.provider.MediaStore;
 import android.support.annotation.NonNull;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
@@ -42,10 +38,10 @@ import com.cnlive.im.mode.ImagMessage;
 import com.cnlive.im.mode.StringMessage;
 import com.cnlive.im.mode.VoiceMessage;
 import com.cnlive.im.util.AudioRecordUtil;
-import com.cnlive.im.util.MediaRecorderUtil;
 import com.cnlive.im.util.MessageType;
 import com.cnlive.im.util.PlayerUtil;
 import com.cnlive.im.util.TimeUtils;
+import com.cnlive.im.util.UploadImageUtils;
 import com.cnlive.libs.util.chat.ChatUtil;
 import com.cnlive.libs.util.chat.base.IChat;
 import com.cnlive.libs.util.chat.model.CNImgMessage;
@@ -55,11 +51,8 @@ import com.cnlive.libs.util.chat.model.CNVoiceMessage;
  
 import org.json.JSONException;
  
-import java.io.LineNumberReader;
 import java.util.ArrayList;
  
-import static android.R.id.edit;
-
  
 /**
  * @author 陈硕
@@ -396,18 +389,8 @@ public class ChatRoomActivity extends AppCompatActivity implements View.OnClickL
         if (resultCode == Activity.RESULT_OK) {
             switch (requestCode) {
                 case IMG_FROM_PICTURE:
-//                    String localImagePath = "/sdcard/test.png";
-//                    Uri selectedImage = Uri.parse("file://" + localImagePath);
                     Uri selectedImage = data.getData();
-                    String[] filePathColumn = {MediaStore.Images.Media.DATA};
-
-                    Cursor cursor = getContentResolver().query(selectedImage,
-                            filePathColumn, null, null, null);
-                    cursor.moveToFirst();
-
-                    int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
-                    final String picturePath = cursor.getString(columnIndex);
-
+                    String picturePath = UploadImageUtils.getPath(this, selectedImage);
                     Uri uri = Uri.parse("file://" + picturePath);
                     ChatUtil.sendImaMessage(IChat.CHATROOM, roomIdOne, uri, uri, sendMessageListener);
                     break;
@@ -599,10 +582,10 @@ public class ChatRoomActivity extends AppCompatActivity implements View.OnClickL
  
         @Override
         public void afterTextChanged(Editable editable) {
-            if (!TextUtils.isEmpty(editable)){
+            if (!TextUtils.isEmpty(editable)) {
                 ima_send.setVisibility(View.GONE);
                 send_messageOneBtn.setVisibility(View.VISIBLE);
-            }else {
+            } else {
                 send_messageOneBtn.setVisibility(View.GONE);
                 ima_send.setVisibility(View.VISIBLE);
             }
+package com.cnlive.im.util;
+
+import android.annotation.TargetApi;
+import android.content.ContentUris;
+import android.content.Context;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Matrix;
+import android.media.ExifInterface;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Environment;
+import android.provider.DocumentsContract;
+import android.provider.MediaStore;
+import android.text.TextUtils;
+import android.widget.Toast;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+/**
+ * Created by gujun on 2015/5/19.
+ */
+public class UploadImageUtils {
+    private static final String IMAGE_PATH = "/com.cnlive.shockwave/image/";
+
+    private static ByteArrayOutputStream getImageStream(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 scale = 0;
+//        if(newOpts.outHeight <= newOpts.outWidth){//竖图
+//            scale = (int) (newOpts.outHeight / (float) 600);
+//        }else{//横图
+//            scale = (int) (newOpts.outWidth / (float) 600);
+//        }
+//        if (scale <= 0)
+//            scale = 1;
+//        newOpts.inSampleSize = scale;//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);
+        Bitmap bitmap = BitmapFactory.decodeFile(srcPath);
+        int oldWidth = bitmap.getWidth();
+        int oldHeight = bitmap.getHeight();
+        float scale;
+        if(oldHeight <= oldWidth){
+            scale = (float)600 / oldHeight;
+        }else{
+            scale = (float)600 / oldWidth;
+        }
+        if(scale > 1){
+            scale = 1 ;
+        }
+        Matrix matrix = new Matrix();
+        matrix.postScale(scale,scale);
+        bitmap = Bitmap.createBitmap(bitmap,0,0,oldWidth,oldHeight,matrix,true);
+        //解决部分手机相机返回照片自动旋转问题
+        bitmap = rotate(bitmap,readPictureDegree(srcPath));
+        return compressImage(bitmap);//压缩好比例大小后再进行质量压缩
+    }
+
+    private static ByteArrayOutputStream compressImage(Bitmap image) {
+        ByteArrayOutputStream bitmapStream = new ByteArrayOutputStream();
+        image.compress(Bitmap.CompressFormat.PNG, 100, bitmapStream);//质量压缩方法，这里100表示不压缩，把压缩后的数据存放到bitmapStream中
+        return bitmapStream;
+    }
+
+    public static String writeStringToSDcard(Context context,String path) throws IOException {
+        ByteArrayOutputStream bitmapStream = getImageStream(path);
+        return writeToSDcard(context,bitmapStream);
+    }
+
+    private static String writeToSDcard(Context context,ByteArrayOutputStream bitmapStream)throws IOException {
+        String filePath = getImagePath(context);
+        if(!TextUtils.isEmpty(filePath)){
+            FileOutputStream out=new FileOutputStream(new File(filePath));
+            out.write(bitmapStream.toByteArray());
+            bitmapStream.close();
+            out.flush();
+            out.close();
+        }
+        return filePath;
+    }
+
+    public static String getImagePath(Context context){
+        String status = Environment.getExternalStorageState();
+        String path = "";
+        if (status.equals(Environment.MEDIA_MOUNTED)) {
+            String rootPath =  Environment.getExternalStorageDirectory().getAbsolutePath() + IMAGE_PATH;
+            File file = new File(rootPath);
+            if(!file.exists()){
+                file.mkdirs();
+            }
+            path = rootPath + System.currentTimeMillis() + ".png";
+        }else {
+            Toast.makeText(context, "未插入SD卡", Toast.LENGTH_SHORT).show();
+        }
+        return path;
+
+    }
+
+    @TargetApi(Build.VERSION_CODES.KITKAT)
+    public static 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];
+                }
+
+                // TODO handle non-primary volumes
+            }
+            // DownloadsProvider
+            else if (isDownloadsDocument(uri)) {
+
+                final String id = DocumentsContract.getDocumentId(uri);
+                final Uri contentUri = ContentUris.withAppendedId(
+                        Uri.parse("content://downloads/public_downloads"), Long.parseLong(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;
+                } else if ("video".equals(type)) {
+                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
+                } else if ("audio".equals(type)) {
+                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
+                }
+
+                final String selection = "_id=?";
+                final String[] selectionArgs = new String[]{
+                        split[1]
+                };
+
+                return getDataColumn(context, contentUri, selection, selectionArgs);
+            }
+        }
+        // MediaStore (and general)
+        else if ("content".equalsIgnoreCase(uri.getScheme())) {
+
+            // Return the remote address
+            if (isGooglePhotosUri(uri))
+                return uri.getLastPathSegment();
+
+            return getDataColumn(context, uri, null, null);
+        }
+        // File
+        else if ("file".equalsIgnoreCase(uri.getScheme())) {
+            return uri.getPath();
+        }
+
+        return null;
+    }
+
+    /**
+     * Get the value of the data column for this Uri. This is useful for
+     * MediaStore Uris, and other file-based ContentProviders.
+     *
+     * @param context       The context.
+     * @param uri           The Uri to query.
+     * @param selection     (Optional) Filter used in the query.
+     * @param selectionArgs (Optional) Selection arguments used in the query.
+     * @return The value of the _data column, which is typically a file path.
+     */
+    public static 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 index = cursor.getColumnIndexOrThrow(column);
+                return cursor.getString(index);
+            }
+        } finally {
+            if (cursor != null)
+                cursor.close();
+        }
+        return null;
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is ExternalStorageProvider.
+     */
+    public static boolean isExternalStorageDocument(Uri uri) {
+        return "com.android.externalstorage.documents".equals(uri.getAuthority());
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is DownloadsProvider.
+     */
+    public static boolean isDownloadsDocument(Uri uri) {
+        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is MediaProvider.
+     */
+    public 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 Google Photos.
+     */
+    public static boolean isGooglePhotosUri(Uri uri) {
+        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
+    }
+
+
+    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;
+                default:
+                    break;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return degree;
+    }
+
+    public static Bitmap rotate(Bitmap b, int degrees) {
+        if (degrees == 0) {
+            return b;
+        }
+        if (degrees != 0 && b != null) {
+            Matrix m = new Matrix();
+            m.setRotate(degrees, (float) b.getWidth(), (float) b.getHeight());
+            try {
+                Bitmap b2 = Bitmap.createBitmap(b, 0, 0, b.getWidth(),
+                        b.getHeight(), m, true);
+                if (b != b2) {
+                    b.recycle(); // Android开发网再次提示Bitmap操作完应该显示的释放
+                    b = b2;
+                }
+            } catch (OutOfMemoryError ex) {
+                // Android123建议大家如何出现了内存不足异常，最好return 原始的bitmap对象。.
+            }
+        }
+        return b;
+    }
+
+    public interface SubmitImageListener{
+        void writeComplete(File file);
+        void writeError(String msg);
+    }
+}