Question

我是Android和java编程的初学者。我创建了一个简单的图像滑块应用程序13（12个图像是5 MB大小，1个是91 Kb）图像与前一个和下一个按钮。当我尝试在设备上测试它时，华为荣耀5x，安装屏幕出现，但然后立即消失。它没有安装。 logcat显示outofmemory错误。我不知道如何解决它。这是我的第一个应用程序。我附上了代码。

JAVA代码：

package com.jibran.ejaz.prayertimes;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ViewFlipper;
import android.content.Intent;


public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    ViewFlipper viewFlipper;
    Button next;
    Button previous;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        viewFlipper = (ViewFlipper)findViewById(R.id.viewFlipper);
        next = (Button) findViewById(R.id.next);
        previous = (Button) findViewById(R.id.previous);
        next.setOnClickListener(this);
        previous.setOnClickListener(this);
    }
    @Override
    public void onClick(View v) {
        if (v == next) {
            viewFlipper.showNext();
        }
        else if (v == previous) {
            viewFlipper.showPrevious();
        }
    }
    }

XML代码：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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="com.jibran.ejaz.prayertimes.MainActivity">
    <ViewFlipper
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/viewFlipper">
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView1"
            android:src="@drawable/prayertimes"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView2"
            android:src="@drawable/capture1"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView3"
            android:src="@drawable/capture2"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView4"
            android:src="@drawable/capture3"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView5"
            android:src="@drawable/capture4"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView6"
            android:src="@drawable/capture5"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView7"
            android:src="@drawable/capture6"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView8"
            android:src="@drawable/capture7"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView9"
            android:src="@drawable/capture8"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView10"
            android:src="@drawable/capture9"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView11"
            android:src="@drawable/capture10"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView12"
            android:src="@drawable/capture11"/>
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:scaleType="fitXY"
            android:id="@+id/imageView13"
            android:src="@drawable/capture12"/>
    </ViewFlipper>
    <Button
        android:id="@+id/next"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Next"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"/>
    <Button
        android:id="@+id/previous"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Prev"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentBottom="true"
        android:layout_alignTop="@+id/next"/>
</RelativeLayout>

logcat的：

02-17 09:49:52.791 954-954/com.jibran.ejaz.prayertimes V/HwPolicyFactory: : success to get AllImpl object and return....
02-17 09:49:52.801 954-954/com.jibran.ejaz.prayertimes V/HwWidgetFactory: : successes to get AllImpl object and return....
02-17 09:49:52.801 954-954/com.jibran.ejaz.prayertimes V/ActivityThread: ActivityThread,callActivityOnCreate
02-17 09:49:52.881 954-954/com.jibran.ejaz.prayertimes W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
02-17 09:49:52.991 954-954/com.jibran.ejaz.prayertimes D/CubicBezierInterpolator: CubicBezierInterpolator  mControlPoint1x = 0.15, mControlPoint1y = 0.7, mControlPoint2x = 0.2, mControlPoint2y = 0.98
02-17 09:49:52.991 954-954/com.jibran.ejaz.prayertimes D/CubicBezierInterpolator: CubicBezierInterpolator  mControlPoint1x = 0.6, mControlPoint1y = 0.9, mControlPoint2x = 0.8, mControlPoint2y = 1.0
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: mAcquireFunc method = public int com.qualcomm.qti.Performance.perfLockAcquire(int,int[])
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: mReleaseFunc method = public int com.qualcomm.qti.Performance.perfLockRelease()
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: mAcquireTouchFunc method = public int com.qualcomm.qti.Performance.perfLockAcquireTouch(android.view.MotionEvent,android.util.DisplayMetrics,int,int[])
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: mIOPStart method = public int com.qualcomm.qti.Performance.perfIOPrefetchStart(int,java.lang.String)
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: mIOPStop method = public int com.qualcomm.qti.Performance.perfIOPrefetchStop()
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: BoostFramework() : mPerf = com.qualcomm.qti.Performance@47c49a4
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes D/CubicBezierInterpolator: CubicBezierInterpolator  mControlPoint1x = 0.15, mControlPoint1y = 0.7, mControlPoint2x = 0.2, mControlPoint2y = 0.98
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes D/CubicBezierInterpolator: CubicBezierInterpolator  mControlPoint1x = 0.6, mControlPoint1y = 0.9, mControlPoint2x = 0.8, mControlPoint2y = 1.0
02-17 09:49:53.001 954-954/com.jibran.ejaz.prayertimes V/BoostFramework: BoostFramework() : mPerf = com.qualcomm.qti.Performance@33830d
02-17 09:49:53.071 954-954/com.jibran.ejaz.prayertimes I/HwCust: Constructor found for class android.widget.HwCustTextViewImpl
02-17 09:49:53.071 954-954/com.jibran.ejaz.prayertimes D/HwCust: Create obj success use class android.widget.HwCustTextViewImpl
02-17 09:49:53.571 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.571 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.581 954-954/com.jibran.ejaz.prayertimes I/art: Alloc partial concurrent mark sweep GC freed 337(27KB) AllocSpace objects, 0(0B) LOS objects, 40% free, 18MB/31MB, paused 253us total 10.199ms
02-17 09:49:53.581 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.591 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.601 954-954/com.jibran.ejaz.prayertimes I/art: Alloc concurrent mark sweep GC freed 20(12KB) AllocSpace objects, 0(0B) LOS objects, 40% free, 18MB/31MB, paused 312us total 15.129ms
02-17 09:49:53.601 954-954/com.jibran.ejaz.prayertimes I/art: Forcing collection of SoftReferences for 445MB allocation
02-17 09:49:53.601 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.621 954-954/com.jibran.ejaz.prayertimes I/art: Alloc concurrent mark sweep GC freed 11(352B) AllocSpace objects, 0(0B) LOS objects, 40% free, 18MB/31MB, paused 286us total 14.715ms
02-17 09:49:53.621 954-954/com.jibran.ejaz.prayertimes W/art: Throwing OutOfMemoryError "Failed to allocate a 467251212 byte allocation with 13040548 free bytes and 173MB until OOM"
02-17 09:49:53.621 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.621 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.631 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.631 954-954/com.jibran.ejaz.prayertimes I/art: Alloc partial concurrent mark sweep GC freed 6(192B) AllocSpace objects, 0(0B) LOS objects, 40% free, 18MB/31MB, paused 249us total 7.162ms
02-17 09:49:53.631 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.651 954-954/com.jibran.ejaz.prayertimes I/art: Alloc concurrent mark sweep GC freed 3(96B) AllocSpace objects, 0(0B) LOS objects, 40% free, 18MB/31MB, paused 278us total 14.701ms
02-17 09:49:53.651 954-954/com.jibran.ejaz.prayertimes I/art: Forcing collection of SoftReferences for 445MB allocation
02-17 09:49:53.651 954-954/com.jibran.ejaz.prayertimes I/art: Starting a blocking GC Alloc
02-17 09:49:53.661 954-954/com.jibran.ejaz.prayertimes I/art: Alloc concurrent mark sweep GC freed 3(96B) AllocSpace objects, 0(0B) LOS objects, 40% free, 18MB/31MB, paused 266us total 14.733ms
02-17 09:49:53.661 954-954/com.jibran.ejaz.prayertimes W/art: Throwing OutOfMemoryError "Failed to allocate a 467251212 byte allocation with 13040548 free bytes and 173MB until OOM"
02-17 09:49:53.661 954-954/com.jibran.ejaz.prayertimes D/skia: --- allocation failed for scaled bitmap
02-17 09:49:53.681 954-954/com.jibran.ejaz.prayertimes D/AndroidRuntime: Shutting down VM
02-17 09:49:53.731 954-954/com.jibran.ejaz.prayertimes E/AndroidRuntime: FATAL EXCEPTION: main
                                                                         Process: com.jibran.ejaz.prayertimes, PID: 954
                                                                         java.lang.OutOfMemoryError: Failed to allocate a 467251212 byte allocation with 13040548 free bytes and 173MB until OOM
                                                                             at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
                                                                             at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
                                                                             at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:667)
                                                                             at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:488)
                                                                             at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1082)
                                                                             at android.content.res.Resources.loadDrawableForCookie(Resources.java:2702)
                                                                             at android.content.res.Resources.loadDrawable(Resources.java:2603)
                                                                             at android.content.res.HwResources.loadDrawable(HwResources.java:665)
                                                                             at android.content.res.TypedArray.getDrawable(TypedArray.java:912)
                                                                             at android.widget.ImageView.<init>(ImageView.java:152)
                                                                             at android.widget.ImageView.<init>(ImageView.java:140)
                                                                             at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:57)
                                                                             at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:53)
                                                                             at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106)
                                                                             at android.support.v7.app.AppCompatDelegateImplV7.createView(AppCompatDelegateImplV7.java:1008)
                                                                             at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:1067)
                                                                             at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
                                                                             at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:765)
                                                                             at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:723)
                                                                             at android.view.LayoutInflater.rInflate(LayoutInflater.java:854)
                                                                             at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)
                                                                             at android.view.LayoutInflater.rInflate(LayoutInflater.java:857)
                                                                             at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:817)
                                                                             at android.view.LayoutInflater.inflate(LayoutInflater.java:534)
                                                                             at android.view.LayoutInflater.inflate(LayoutInflater.java:434)
                                                                             at android.view.LayoutInflater.inflate(LayoutInflater.java:377)
                                                                             at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:280)
                                                                             at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
                                                                             at com.jibran.ejaz.prayertimes.MainActivity.onCreate(MainActivity.java:17)
                                                                             at android.app.Activity.performCreate(Activity.java:6367)
                                                                             at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)
                                                                             at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2397)
                                                                             at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2504)
                                                                             at android.app.ActivityThread.access$900(ActivityThread.java:165)
                                                                             at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1368)
                                                                             at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                             at android.os.Looper.loop(Looper.java:150)
                                                                             at android.app.ActivityThread.main(ActivityThread.java:5546)
                                                                             at java.lang.reflect.Method.invoke(Native Method)
                                                                             at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794)
                                                                             at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684)
02-17 09:49:54.041 954-954/com.jibran.ejaz.prayertimes I/Process: Sending signal. PID: 954 SIG: 9

Answer 1

swich to picasso liabrary易于实施

compile＆＃34; com.squareup.picasso：picasso：2.4.0＆＃34; 在gradle文件中使用它。

 Picasso.with(this)
.load("YOUR IMAGE URL HERE")
.placeholder(Your Drawable Resource) //this is optional the image to display       while the url image is downloading
.error(Your Drawable Resource)         //this is also optional if some error has occurred in downloading the image this image would be displayed
.into(imageView);

Answer 2

由于ImageView上的图像来源太大而且View很多。所以你必须选择减小图像大小和重量或使用第三方库。

所以我建议您使用第三方库来管理它的大小，如Glide：

https://github.com/bumptech/glide

粘贴到build.gradle app-level

repositories {
  mavenCentral() // jcenter() works as well because it pulls from Maven Central
}

dependencies {
  compile 'com.github.bumptech.glide:glide:3.7.0'
  compile 'com.android.support:support-v4:19.1.0'
}

在运行时加载图片：

Glide.with(this).load(R.drawable.prayertimes).into(imageView1);
...

编辑

虔诚者应该说出你的理由。

Answer 3

使用BitmapFactory.Options http://developer.android.com/reference/android/graphics/BitmapFactory.Options.html

缩小图像

OutOfMemoryError是android中最常见的问题，尤其是在处理位图时。当由于内存空间不足而无法分配对象时，Java虚拟机（JVM）会抛出此错误，并且垃圾收集器也无法释放一些空间。

int imageWidth, imageHeight;

Bitmap result = Bitmap.createScaledBitmap(bitmapPicture,
                        imageWidth, imageHeight, false);

Android Studio会立即终止应用

3 个答案: