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所以我正在写一个软件，当我尝试创建第二个drawable时，它会一直崩溃。它从前面的屏幕上开始，然后我按下一个按钮，它会转到一个新的活动。在那个活动中，我有一个ImageView在中间和一个按钮在底部。当活动加载时，ImageView中有一个可绘制的。所以当我点击底部的按钮时，它应该改变ImageView中的drawable，但它会崩溃。我发现，在logcat的是说这样的错误：在ImageView中更改drawable崩溃android app
E/AndroidRuntime(1385): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
所以这里是从活动我的代码：
package com.foocity.android.gui;
import android.app.Activity;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
public class NewMapActivity extends Activity
{
public ImageView mapPreview;
public Drawable currentPic;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.newmap);
currentPic = getResources().getDrawable(R.drawable.milestone_cleanenergy);
mapPreview = (ImageView) findViewById(R.id.chooseCanvas);
mapPreview.setImageDrawable(currentPic);
}
public void changePic(View view)
{
System.out.println("tester boy!!!!!!!!!!!");
currentPic = null;
currentPic = getResources().getDrawable(R.drawable.welcomescreen);
mapPreview.setImageDrawable(currentPic);
}
}
这里是logcat的说什么，当它崩溃：
06-13 21:25:56.613: D/dalvikvm(4086): GC_EXTERNAL_ALLOC freed 614 objects/50072 bytes in 58ms
06-13 21:26:02.133: W/System.err(4086): java.io.FileNotFoundException: /sdcard/000.txt (No such file or directory)
06-13 21:26:02.143: W/System.err(4086): at org.apache.harmony.luni.platform.OSFileSystem.openImpl(Native Method)
06-13 21:26:02.143: W/System.err(4086): at org.apache.harmony.luni.platform.OSFileSystem.open(OSFileSystem.java:152)
06-13 21:26:02.143: W/System.err(4086): at java.io.FileInputStream.<init>(FileInputStream.java:82)
06-13 21:26:02.143: W/System.err(4086): at java.util.Scanner.<init>(Scanner.java:188)
06-13 21:26:02.143: W/System.err(4086): at java.util.Scanner.<init>(Scanner.java:167)
06-13 21:26:02.143: W/System.err(4086): at com.foocity.android.Map.<init>(Map.java:33)
06-13 21:26:02.143: W/System.err(4086): at com.foocity.android.FooCity.setMap(FooCity.java:594)
06-13 21:26:02.143: W/System.err(4086): at com.foocity.android.gui.StartActivity.chooseMap(StartActivity.java:33)
06-13 21:26:02.153: W/System.err(4086): at java.lang.reflect.Method.invokeNative(Native Method)
06-13 21:26:02.153: W/System.err(4086): at java.lang.reflect.Method.invoke(Method.java:521)
06-13 21:26:02.153: W/System.err(4086): at android.view.View$1.onClick(View.java:2067)
06-13 21:26:02.153: W/System.err(4086): at android.view.View.performClick(View.java:2408)
06-13 21:26:02.153: W/System.err(4086): at android.view.View$PerformClick.run(View.java:8816)
06-13 21:26:02.153: W/System.err(4086): at android.os.Handler.handleCallback(Handler.java:587)
06-13 21:26:02.153: W/System.err(4086): at android.os.Handler.dispatchMessage(Handler.java:92)
06-13 21:26:02.153: W/System.err(4086): at android.os.Looper.loop(Looper.java:123)
06-13 21:26:02.153: W/System.err(4086): at android.app.ActivityThread.main(ActivityThread.java:4627)
06-13 21:26:02.153: W/System.err(4086): at java.lang.reflect.Method.invokeNative(Native Method)
06-13 21:26:02.153: W/System.err(4086): at java.lang.reflect.Method.invoke(Method.java:521)
06-13 21:26:02.153: W/System.err(4086): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-13 21:26:02.153: W/System.err(4086): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-13 21:26:02.153: W/System.err(4086): at dalvik.system.NativeStart.main(Native Method)
06-13 21:26:02.393: D/dalvikvm(4086): GC_EXTERNAL_ALLOC freed 3101 objects/159528 bytes in 53ms
06-13 21:26:07.113: I/System.out(4086): tester boy!!!!!!!!!!!
06-13 21:26:07.123: E/dalvikvm-heap(4086): 9469350-byte external allocation too large for this process.
06-13 21:26:07.123: E/GraphicsJNI(4086): VM won't let us allocate 9469350 bytes
06-13 21:26:07.133: D/AndroidRuntime(4086): Shutting down VM
06-13 21:26:07.133: W/dalvikvm(4086): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
06-13 21:26:07.143: E/AndroidRuntime(4086): FATAL EXCEPTION: main
06-13 21:26:07.143: E/AndroidRuntime(4086): java.lang.IllegalStateException: Could not execute method of the activity
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.view.View$1.onClick(View.java:2072)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.view.View.performClick(View.java:2408)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.view.View$PerformClick.run(View.java:8816)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.os.Handler.handleCallback(Handler.java:587)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.os.Handler.dispatchMessage(Handler.java:92)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.os.Looper.loop(Looper.java:123)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.app.ActivityThread.main(ActivityThread.java:4627)
06-13 21:26:07.143: E/AndroidRuntime(4086): at java.lang.reflect.Method.invokeNative(Native Method)
06-13 21:26:07.143: E/AndroidRuntime(4086): at java.lang.reflect.Method.invoke(Method.java:521)
06-13 21:26:07.143: E/AndroidRuntime(4086): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
06-13 21:26:07.143: E/AndroidRuntime(4086): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
06-13 21:26:07.143: E/AndroidRuntime(4086): at dalvik.system.NativeStart.main(Native Method)
06-13 21:26:07.143: E/AndroidRuntime(4086): Caused by: java.lang.reflect.InvocationTargetException
06-13 21:26:07.143: E/AndroidRuntime(4086): at com.foocity.android.gui.NewMapActivity.changePic(NewMapActivity.java:30)
06-13 21:26:07.143: E/AndroidRuntime(4086): at java.lang.reflect.Method.invokeNative(Native Method)
06-13 21:26:07.143: E/AndroidRuntime(4086): at java.lang.reflect.Method.invoke(Method.java:521)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.view.View$1.onClick(View.java:2067)
06-13 21:26:07.143: E/AndroidRuntime(4086): ... 11 more
06-13 21:26:07.143: E/AndroidRuntime(4086): Caused by: java.lang.OutOfMemoryError: bitmap size exceeds VM budget
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.Bitmap.nativeCreate(Native Method)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.Bitmap.createBitmap(Bitmap.java:468)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.Bitmap.createBitmap(Bitmap.java:435)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:340)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.BitmapFactory.finishDecode(BitmapFactory.java:488)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:462)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:323)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:697)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.content.res.Resources.loadDrawable(Resources.java:1709)
06-13 21:26:07.143: E/AndroidRuntime(4086): at android.content.res.Resources.getDrawable(Resources.java:581)
06-13 21:26:07.143: E/AndroidRuntime(4086): ... 15 more
它显然与内存管理有关，我不用它来监控Java，但我不确定该怎么做。任何帮助，将不胜感激。谢谢
P.S.我意识到发布这个，我尝试了其他的东西（创建一个文件对象，然后把它的内容写入System.out），并且它甚至在新活动加载ImageView中的第一个drawable之前引发了同样的错误，所以它必须有一切可以做在内存管理方面，我想我需要关于如何在这个系统中管理内存的帮助，因为我已经习惯于使用常规Java来处理GC。
我不这么认为，就像我在最后说的那样，当我创建一个File对象并将其写入System.out时，该程序甚至会在它到达ImageView之前崩溃。另外当我运行：currentPic = null;然后currentPic = getResources（）。getDrawable（R.drawable.blah）;并使用调试会话它甚至在运行mapPreview.setImageDrawable（currentPic）之前给我关于内存分配的错误;所以它与内存管理有关，但不是将ImageView上的另一张图片放在另一张图片上的具体想法。 –
如果是这种情况，那么图像显然太大了。据我所知，无法增加分配给应用程序的内存量。 – cDecker32