史上最全选择本地图片和拍照上传,超简单解决获取不到图片问题

相信很多朋友做上传图片的时候都苦恼过获取不到图片，本篇博客解决你的烦恼

这里是选择本地图片
try {
                // 选择本地文件
                Intent fileIntent = new Intent(
                        Intent.ACTION_PICK,
                        android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                /* 取得相片后返回本画面 */
                startActivityForResult(fileIntent, myRequestCode);
            } catch (Exception e) {
                LogUtil.e(e);
            }
//这里是拍照上传
// 调用系统照相功能
            try {
                    // 调用系统摄像头，进行拍照
                    String state = Environment.getExternalStorageState();
                    if (state.equals(Environment.MEDIA_MOUNTED)) {
                        Intent phoneIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                        String saveDir = GlobalParams.SAVE_PATH;
                        File dir = new File(saveDir);
                        if (!dir.exists()) {
                            dir.mkdir();
                        }
                        file = new File(saveDir, System.currentTimeMillis()+".jpg");

                        phoneIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));

                        startActivityForResult(phoneIntent, 2);
                }
            } catch (Exception e) {
                LogUtil.e(e);
            }

下面就开始怎么获取图片了

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        try {
            if (requestCode == myRequestCode) {
                    Uri uri = data.getData();
                    if (bitmap != null) {
                        bitmap.recycle();
                        bitmap = null;
                        file = null;
                    }
                    if(uri != null){
                        String[] proj = { MediaStore.Images.Media.DATA };
                        Cursor actualimagecursor = managedQuery(uri, proj, null, null, null);
                        int actual_image_column_index = actualimagecursor
                                .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                        actualimagecursor.moveToFirst();
                        String img_path = actualimagecursor
                                .getString(actual_image_column_index);
                        file = new File(img_path);
                        if (Integer.parseInt(Build.VERSION.SDK) < 14) {
                            actualimagecursor.close();
                        }
                        ImageSize imageSize = ImageSizeUtil
                                .getImageViewSize(iv_preview);
                        // 2、压缩图片
                        // 获得图片的宽和高，并不把图片加载到内存中
                        BitmapFactory.Options options = new BitmapFactory.Options();
                        options.inJustDecodeBounds = true;
                        BitmapFactory.decodeFile(img_path, options);
                        options.inSampleSize = ImageSizeUtil.caculateInSampleSize(
                                options, imageSize.width, imageSize.height);

                        // 使用获得到的InSampleSize再次解析图片
                        options.inJustDecodeBounds = false;
                        bitmap = BitmapFactory.decodeFile(img_path, options);
                    }else{
                        //获取图片
                        Bundle extras = data.getExtras();
                        bitmap = (Bitmap) extras.get("data");
                    }
                    iv_preview.setImageBitmap(bitmap);

            }else if(requestCode == 2){
                if(file != null){
                    //压缩图片
                    compressionImage();
                }
            }
        } catch (Exception e) {
            Log.e("Exception", e.getMessage(), e);
        }
    }

    /**
     * 压缩图片
     */
    private void compressionImage() {
        /*ImageSize imageSize = ImageSizeUtil
                .getImageViewSize(iv_preview);*/
        // 2、压缩图片
        // 获得图片的宽和高，并不把图片加载到内存中
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(file.getAbsolutePath(), options);
        /*options.inSampleSize = ImageSizeUtil.caculateInSampleSize(
                options, imageSize.width, imageSize.height);*/
        options.inSampleSize = 8;
        // 使用获得到的InSampleSize再次解析图片
        options.inJustDecodeBounds = false;
        bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
        iv_preview.setImageBitmap(bitmap);
    }

就这么简单，就这么任性搞定选择图片和拍照上传获取不到图片问题