java - 水平 ScrollView 崩溃

Question

我需要在屏幕上显示多个图像，允许用户以水平方式滑动。当他们单击图像时，他们应该从应用程序本身的站点打开本地存储的 PDF/PDF。

问题是，每当我放置 ScrollView (水平或垂直)时，当我尝试转到包含该 View 的 Activity 时，我的应用程序就会崩溃。

目前，所述 Activity 如下所示:

完整的 xml 代码:

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/ConstraintLayout">

    <HorizontalScrollView
        android:layout_width="368dp"
        android:layout_height="495dp"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:orientation="horizontal">

            <ImageView
                android:id="@+id/imageView3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                app:srcCompat="@drawable/generatieve_tros" />

            <ImageView
                android:id="@+id/imageView2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                app:srcCompat="@drawable/botrytis" />
        </LinearLayout>

    </HorizontalScrollView>
</android.support.constraint.ConstraintLayout>

错误:

D/ViewRootImpl@73c34ee[activity_kop]: MSG_WINDOW_FOCUS_CHANGED 0
    D/ViewRootImpl@73c34ee[activity_kop]: dispatchDetachedFromWindow
    D/InputTransport: Input channel destroyed: fd=80
    D/ViewRootImpl@8980143[activity_tree]: ViewPostImeInputStage processPointer 0
    D/ViewRootImpl@8980143[activity_tree]: ViewPostImeInputStage processPointer 1
    D/ViewRootImpl@8980143[activity_tree]: MSG_WINDOW_FOCUS_CHANGED 0
    D/TextView: setTypeface with style : 0
    D/TextView: setTypeface with style : 0
    I/art: Starting a blocking GC Alloc
    I/art: Starting a blocking GC Alloc
    I/art: Starting a blocking GC Alloc
    I/art: Alloc partial concurrent mark sweep GC freed 86(3KB) AllocSpace objects, 0(0B) LOS objects, 10% free, 142MB/158MB, paused 153us total 9.255ms
    I/art: Starting a blocking GC Alloc
    I/art: Alloc concurrent mark sweep GC freed 31(944B) AllocSpace objects, 0(0B) LOS objects, 10% free, 142MB/158MB, paused 135us total
14.916ms
    I/art: Forcing collection of SoftReferences for 126MB allocation
    I/art: Starting a blocking GC Alloc
    I/art: Alloc concurrent mark sweep GC freed 3(72B) AllocSpace objects, 0(0B) LOS objects, 10% free, 142MB/158MB, paused 143us total
13.015ms
    W/art: Throwing OutOfMemoryError "Failed to allocate a 132710412 byte allocation with 16772392 free bytes and 113MB until OOM"
    I/art: Starting a blocking GC Alloc
    I/art: Starting a blocking GC Alloc
    I/art: Starting a blocking GC Alloc
    I/art: Alloc partial concurrent mark sweep GC freed 6(144B) AllocSpace objects, 0(0B) LOS objects, 10% free, 142MB/158MB, paused 146us total 8.006ms
    I/art: Starting a blocking GC Alloc
    I/art: Alloc concurrent mark sweep GC freed 3(72B) AllocSpace objects, 0(0B) LOS objects, 10% free, 142MB/158MB, paused 152us total
13.678ms
    I/art: Forcing collection of SoftReferences for 126MB allocation
    I/art: Starting a blocking GC Alloc
    I/art: Alloc concurrent mark sweep GC freed 3(72B) AllocSpace objects, 0(0B) LOS objects, 10% free, 142MB/158MB, paused 147us total
12.795ms
    W/art: Throwing OutOfMemoryError "Failed to allocate a 132710412 byte allocation with 16776400 free bytes and 113MB until OOM"
    D/skia: --- allocation failed for scaled bitmap
    D/AndroidRuntime: Shutting down VM
    E/AndroidRuntime: FATAL EXCEPTION: main
                      Process: eu.app.app, PID: 8423
                      java.lang.OutOfMemoryError: Failed to allocate a 132710412 byte allocation with 16776400 free bytes and 113MB until OOM
                          at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
                          at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
                          at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:700)
                          at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:535)
                          at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1179)
                          at android.content.res.ResourcesImpl.loadDrawableForCookie(ResourcesImpl.java:770)
                          at android.content.res.ResourcesImpl.loadDrawable(ResourcesImpl.java:621)
                          at android.content.res.Resources.getDrawable(Resources.java:1640)
                          at android.content.Context.getDrawable(Context.java:525)
                          at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:351)
                          at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:200)
                          at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:188)
                          at android.support.v7.content.res.AppCompatResources.getDrawable(AppCompatResources.java:100)
                          at android.support.v7.widget.AppCompatImageHelper.loadFromAttributes(AppCompatImageHelper.java:58)
                          at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:78)
                          at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:68)
                          at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106)
                          at android.support.v7.app.AppCompatDelegateImplV9.createView(AppCompatDelegateImplV9.java:1024)
                          at android.support.v7.app.AppCompatDelegateImplV9.onCreateView(AppCompatDelegateImplV9.java:1081)
                          at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:776)
                          at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:734)
                          at android.view.LayoutInflater.rInflate(LayoutInflater.java:865)
                          at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828)
                          at android.view.LayoutInflater.rInflate(LayoutInflater.java:873)
                          at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828)
                          at android.view.LayoutInflater.rInflate(LayoutInflater.java:873)
                          at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:828)
                          at android.view.LayoutInflater.inflate(LayoutInflater.java:525)
                          at android.view.LayoutInflater.inflate(LayoutInflater.java:427)
                          at android.view.LayoutInflater.inflate(LayoutInflater.java:378)
                          at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
                          at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
                          at eu.app.app.activity_fruit.onCreate(activity_fruit.java:12)
                          at android.app.Activity.performCreate(Activity.java:6912)
                          at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1126)
                          at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2877)
                          at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2985)
                          at android.app.ActivityThread.-wrap14(ActivityThread.java)
                          at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1635)
                          at android.os.Handler.dispatchMessage(Handler.java:102)
                          at android.os.Looper.loop(Looper.java:154)
                          at android.app.ActivityThread.main(ActivityThread.java:6692)
                          at java.lang.reflect.Method.invoke(Native Method)
                          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468)
                          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358) Application terminated.

Answer 1

您尝试加载的图像太大，导致内存不足异常。尝试使用像 Glide 这样的图像加载器像这样向下采样并将图像加载到 ImageView 中，

Glide.with(context)
                .load(R.drawable.image)
                .apply(new RequestOptions().override(100,100)/*down sample*/)
                .into(new SimpleTarget<Drawable>() {
                    @Override
                    public void onResourceReady(Drawable resource, Transition<? super Drawable> transition) {
                        //load the image into image view     
                    }
                });