Question

当我尝试将上传的图片加载到我主页的导航标题中时，该应用程序会出错。

错误：

FATAL EXCEPTION: main Process: com.example.cqaai.tutorpal, PID: 23741 java.lang.IllegalArgumentException: You must pass in a non null View
at com.bumptech.glide.GenericRequestBuilder.into(GenericRequestBuilder.java:685)
at com.bumptech.glide.DrawableRequestBuilder.into(DrawableRequestBuilder.java:457)
at com.example.cqaai.tutorpal.activity.HomeActivity$3.onDataChange(HomeActivity.java:199)
at com.google.android.gms.internal.zzbmz.zza(Unknown Source)
at com.google.android.gms.internal.zzbnz.zzYj(Unknown Source)
at com.google.android.gms.internal.zzboc$1.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:751)                                                                                
at android.os.Handler.dispatchMessage(Handler.java:95)                                                                                
at android.os.Looper.loop(Looper.java:159)                                                                                
at android.app.ActivityThread.main(ActivityThread.java:6097)                                                                                
at java.lang.reflect.Method.invoke(Native Method)                                                                                
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)                                                                                   
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

最后一个if语句是错误的原因：

private void getUserInfo() {
    mTuteeDatabase.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {
            if(dataSnapshot.exists() && dataSnapshot.getChildrenCount()>0){
                Map<String, Object> map = (Map<String, Object>) dataSnapshot.getValue();

                if(map.get("FullName")!=null){
                    mFullName = map.get("FullName").toString();
                    txtFullName.setText(mFullName);
                }

                if(map.get("UserName")!=null) {
                    mUserName = map.get("UserName").toString();
                    txtUserName.setText("@" + mUserName);
                }

                if(map.get("profileImageUrl")!=null){
                    mProfileImageUrl = map.get("profileImageUrl").toString();
                    Glide.with(getApplication()).load(mProfileImageUrl).into(mProfileImage);
                }
            }
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });
}

我在gist.github中添加了其他链接。其中包含相关的xml和数据库结构。如果我以错误的方式提出问题，请原谅我。

complete codings: HomeActivity.java, activity_home, etc here

Answer 1

您的mProfileImage是null。变化：

 mProfileImage = (ImageView) findViewById(R.id.profileImage);

致：

 mProfileImage = (ImageView) findViewById(R.id.imageProfile);

Answer 2

试试这个：

final NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
final View header = navigationView.getHeaderView(0);
final ImageView mProfileImage = (ImageView) header.findViewById(R.id.image);

“从firebase获取个人资料图片时，您必须传入非空视图”

2 个答案: