如何解决Android显示图像时内存不足的问题？

我正在开发一个测验应用程序。我在列表中显示问题和选项。我在顶部保留了一个“下一个”按钮，当单击“下一个”按钮时，我 一遍又一遍地调用同一页面，直到测试结束。由于有些问题由图像组成，我在问题下方显示一个按钮，单击该按钮时，图像将显示在新页面中。 现在我的问题是有时当我单击按钮来显示它正在显示的图像时outofmemory例外。

图像.java

public class image extends Activity {

    ImageView myimgview;
    ImageView buttondismiss;

    public static String image_url;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.image);

        Intent intent = getIntent();
        image_url = intent.getStringExtra(List.IMAGE_NAME);

        buttondismiss = (ImageView) findViewById(R.id.dismiss1);

        myimgview = (ImageView) findViewById(R.id.imageView100);

        int in = image_url.indexOf(".");
        String index = Integer.toString(in);
        String picturename = image_url.substring(0, in);

        int imageResource = getResources().getIdentifier(picturename,"drawable", "com.quiz.test");                                              // getPackageName());
        myimgview = (ImageView) findViewById(R.id.imageView100);
        myimgview.setImageResource(imageResource);

    }


}

Logcat:

08-18 11:11:01.063: E/AndroidRuntime(552): FATAL EXCEPTION: main
08-18 11:11:01.063: E/AndroidRuntime(552): java.lang.OutOfMemoryError
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:483)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:351)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:773)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.content.res.Resources.loadDrawable(Resources.java:1937)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.content.res.Resources.getDrawable(Resources.java:664)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.widget.ImageView.resolveUri(ImageView.java:542)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.widget.ImageView.setImageResource(ImageView.java:315)
08-18 11:11:01.063: E/AndroidRuntime(552):  at com.quiz.test.image.onCreate(image.java:48)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.Activity.performCreate(Activity.java:4465)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1919)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.ActivityThread.access$600(ActivityThread.java:122)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.os.Handler.dispatchMessage(Handler.java:99)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.os.Looper.loop(Looper.java:137)
08-18 11:11:01.063: E/AndroidRuntime(552):  at android.app.ActivityThread.main(ActivityThread.java:4340)
08-18 11:11:01.063: E/AndroidRuntime(552):  at java.lang.reflect.Method.invokeNative(Native Method)
08-18 11:11:01.063: E/AndroidRuntime(552):  at java.lang.reflect.Method.invoke(Method.java:511)
08-18 11:11:01.063: E/AndroidRuntime(552):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
08-18 11:11:01.063: E/AndroidRuntime(552):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
08-18 11:11:01.063: E/AndroidRuntime(552):  at dalvik.system.NativeStart.main(Native Method)

该错误显示在 myimgview.setImageResource(imageResource); 行。我不明白问题是什么。我在我的可绘制文件夹中保留了多达 400 张图像，因为我 我的项目中需要所有这些图像。有人请帮我解决这个问题。我正在为这个问题苦苦挣扎。任何帮助将不胜感激。

The OutOfMemory Error当某些图像可能太大而无法显示时，就会发生这种情况。

要解决这个问题，你可以这样做：

BitmapFactory.Options options=new BitmapFactory.Options();
options.inSampleSize = 8;
Bitmap preview_bitmap=BitmapFactory.decodeStream(is,null,options);