Image uri不会在某些Android设备上的ImageView上显示图像

Question

我有一个ImageView.当您单击ImageView时,它将打开图库,您将获取图像并在ImageView上显示它.我有一个条件,当我关闭我的应用程序,然后我打开它,图像将保留在那里.所以,为此,我将图像Uri存储在sharedprefrence上.在打开应用程序时,我正在检索相同的Uri并尝试在imageView上显示图像.

然而在一些手机中 - 图像看起来像Mi(Lollipop),三星(KitKat)一样完美,但它并没有出现在像摩托罗拉(Marshmallow),One Plus One(Marshmallow)这样的手机中.知道为什么会这样吗？这是我的代码

拿起我正在使用的图像

Intent intent=new Intent();intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), Constants.SELECT_PICTURE);

在OnActivityResult()代码上

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
     super.onActivityResult(requestCode, resultCode, data);

     if(requestCode==Constants.SELECT_PICTURE && resultCode==RESULT_OK && null!=data) {
         Uri uri=data.getData();
         Picasso.with(UsersProfileActivity.this)
             .load(uri)
             .centerCrop()
             .resize(200,200)
             .into(img_photo);

         // This profile image i am storing into a sharedpreference        
         profile_image=uri.toString();
     }

在从sharedprefrence检索时,我通过使用将String转换为uri Uri.parse(profile_image)

但是如果我注意到,uri为不同的Android手机返回如下

Mi(Lollipop)- Uri=content://media/external/images/media/12415
samsung(KitKat)-Uri=content://media/external/images/media/786
Motorola(Marshmallow)- Uri=content://com.android.providers.media.documents/document/image%3A30731
One Plus One (Marshmallow)- Uri=content://com.android.providers.media.documents/document/image%3A475

因此,当uri内容是-content:// media/external/images/media /是在ImageView Perfect上显示图像时,在其他情况下它不是

Answer 1

试试这个

我开发tested并开展工作

1. 联想K3 Note(棉花糖)
2. 摩托罗拉(棒棒堂)
3. 三星(奇巧)

在你的MainActivity.java添加

    profilePicture = (ImageView)findViewById(R.id.imgProfilePicture);
    sharedPreferences = getSharedPreferences(getString(R.string.app_name)+"_ProfileDetails",MODE_PRIVATE);

    // get uri from shared preference
    String profilePicUri = sharedPreferences.getString("profilePicUrl","");

    // if uri not found
    if (profilePicUri.equalsIgnoreCase("")){
        // code for open gallery to select image
        Intent intent;
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){
            intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
            intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
            intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION);
        }else{
            intent = new Intent(Intent.ACTION_GET_CONTENT);
        }
        intent.putExtra(Intent.EXTRA_LOCAL_ONLY, true);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        intent.setType("image/*");

        startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE_CONSTANT);
    }else{
        try{
            final int takeFlags =  (Intent.FLAG_GRANT_READ_URI_PERMISSION
                    | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
            // Check for the freshest data.
            getContentResolver().takePersistableUriPermission(Uri.parse(profilePicUri), takeFlags);
            // convert uri to bitmap
            Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), Uri.parse(profilePicUri));
            // set bitmap to imageview
            profilePicture.setImageBitmap(bitmap);
        }
        catch (Exception e){
            //handle exception
            e.printStackTrace();
        }
    }

现在处理onActivityResult.

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == SELECT_PICTURE_CONSTANT && resultCode == RESULT_OK && null != data) {
        Uri uri = data.getData();
        // This profile image i am storing into a sharedpreference
        SharedPreferences.Editor editor = sharedPreferences.edit();
        // save uri to shared preference
        editor.putString("profilePicUrl",uri.toString());
        editor.commit();
        profilePicture.setImageURI(uri);
    }
}

在你的Manifest文件中添加permission

<uses-permission android:name="android.permission.MANAGE_DOCUMENTS"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

注意:

Assuming你为take permission.添加了代码Marshmallow

结果 Uri

联想K3注: content://com.android.externalstorage.documents/document/primary%3ADCIM%2FCamera%2FIMG_20160606_212815.jpg

三星: content://com.android.providers.media.documents/document/image%3A2086

摩托罗拉: content://com.android.providers.media.documents/document/image%3A15828