Framelayout不允许将资源图像添加为背景

Question

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="xxx.boson.com.xxxldigital.fragments.MenuFragment"
    android:alpha="0.9"
    android:background="@drawable/app1">
   <!-- some simple components -->

</FrameLayout>

with background运行时有任何问题,但带有background属性：

Answer 1

背景图像有问题。它的尺寸太大了。

java.lang.OutOfMemoryError：在Dalvik.System上OOM之前，无法分配具有16777216空闲字节和117MB的132710412字节分配

删除此行

android:background="@drawable/app1"

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/mainLayout"
    android:layout_width="match_parent"

   FrameLayout mainLayout = (FrameLayout) findViewById(R.id.mainLayout);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            mainLayout.setBackground(getScaledDrawable(R.drawable.app1));
        } else {
            mainLayout.setBackgroundDrawable(getScaledDrawable(R.drawable.app1));
        }

    }
    //scale image here
    private Drawable getScaledDrawable(int resourceID) {

    }