滑行图像有时未加载

Question

是问答游戏，答案可以是文本或图像，我正在使用Gilde图像进行加载，但对于某些用户，即使互联网良好且图像质量较低，也无法加载图像。

我将复制所有代码，因为我不知道是否是Gilde问题。

if (AppConstant.arQuestionList.get(questionid).getArAnswer().get(i).getAtype()
                    .equalsIgnoreCase("image")) {
                txtOption = new ImageView(this);

                try {
                    Glide.with(QuestionActivity.this).load(AppConstant.arQuestionList.get(questionid)
                            .getArAnswer().get(i).getAnswer()).override(60, 60).into((ImageView)
                            txtOption);
                }catch (OutOfMemoryError e){
                    e.printStackTrace();
                }
                txtOption.setPadding(5, 5, 5, 5);

            } else {
                txtOption = new TextView(this);

                ((TextView) txtOption).setText(AppConstant.arQuestionList.get(questionid)
                        .getArAnswer().get
                                (i).getAnswer());
                ((TextView) txtOption).setTextColor(getResources().getColor(R.color.answer_color));
                ((TextView) txtOption).setTypeface(tf, Typeface.BOLD);
                ((TextView) txtOption).setGravity(Gravity.CENTER);
                txtOption.setPadding(10, 20, 10, 20);
            }

布局

    <LinearLayout
        android:id="@+id/answerwrap"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="@dimen/dp_30"
        android:layout_marginRight="@dimen/dp_30"
        android:layout_marginTop="@dimen/dp_30"
        android:orientation="vertical">

    </LinearLayout>

Answer 1

我在这里解释滑行的最佳方法。

//crete this method into your Utils class and call this method wherever you want to use.
//you can set these placeHolder() and error() image static as well. I made it as comment inside this method, then no need to use [placeHolderUrl and errorImageUrl] parameters. remove it from this method.
public static void loadImage(final Activity context, ImageView imageView, String url, int placeHolderUrl, int errorImageUrl) {
    if (context == null || context.isDestroyed()) return;

    //placeHolderUrl=R.drawable.ic_user;
    //errorImageUrl=R.drawable.ic_error;
        Glide.with(context) //passing context 
                .load(getFullUrl(url)) //passing your url to load image.
                .placeholder(placeHolderUrl) //this would be your default image (like default profile or logo etc). it would be loaded at initial time and it will replace with your loaded image once glide successfully load image using url.
                .error(errorImageUrl)//in case of any glide exception or not able to download then this image will be appear . if you won't mention this error() then nothing to worry placeHolder image would be remain as it is.
                .diskCacheStrategy(DiskCacheStrategy.ALL) //using to load into cache then second time it will load fast.
                .animate(R.anim.fade_in) // when image (url) will be loaded by glide then this face in animation help to replace url image in the place of placeHolder (default) image.
                .fitCenter()//this method help to fit image into center of your ImageView 
                .into(imageView); //pass imageView reference to appear the image.
}

fade_in.xml （将其放入res- > anim中）

<set xmlns:android="http://schemas.android.com/apk/res/android">
<!--THIS ANIMATION IS USING FOR FADE IN -->

<alpha
    android:duration="800"
    android:fromAlpha="0.0"
    android:interpolator="@android:anim/decelerate_interpolator"
    android:toAlpha="1.0" />

最后调用此方法

从您的活动中。

Utils.loadImage(YourClassName.this,mImageView,url,R.drawable.ic_user,R.drawable.ic_error);

要么

从你的片段

Utils.loadImage(getActivity,mImageView,url,R.drawable.ic_user,R.drawable.ic_error);

Answer 2

我遵循了一切。

添加了.dontAnimate添加了所有必要的权限，Internet，Access_Network_State

但是什么都行不通。

最后，我找到了无法加载图片的原因，我的图片网址没有http或https 。 我在图片网址前面添加了http:// ，并且可以完美加载。

Answer 3

就我的情况而言，在Glide 4.8.0中，将以下内容添加到Glide加载到的ImageView小部件中就可以了，但效果很好。

android:background="?attr/selectableItemBackgroundBorderless"

或者也

android:background="@drawable/R.drawable.yourResourceFile

或者也

android:background="@android:color/transparent"