Question

我正在制作游戏，我想设置游戏的布局，使其适用于多个设备屏幕。因此，我没有从asset's folder获取图片，而是在寻找某种方法从drawable folder中获取图片。所以，稍后我可以根据设备的屏幕获取图像。

更新

我用

尝试了

mFaceTextureRegionLifeLine = (TiledTextureRegion) TextureRegionFactory.createFromResource(mTextureLifeLine, this, R.drawable.icon, 100, 100);

而且，它解雇了我并且错误如下 -

09-05 19:02:38.923: ERROR/AndroidRuntime(4161): FATAL EXCEPTION: main
09-05 19:02:38.923: ERROR/AndroidRuntime(4161): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.engine/com.engine.BallDemo}: java.lang.ClassCastException: org.anddev.andengine.opengl.texture.region.TextureRegion
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.os.Handler.dispatchMessage(Handler.java:99)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.os.Looper.loop(Looper.java:123)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.ActivityThread.main(ActivityThread.java:4627)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at java.lang.reflect.Method.invokeNative(Native Method)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at java.lang.reflect.Method.invoke(Method.java:521)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at dalvik.system.NativeStart.main(Native Method)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161): Caused by: java.lang.ClassCastException: org.anddev.andengine.opengl.texture.region.TextureRegion
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at com.engine.BallDemo.onLoadResources(BallDemo.java:132)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at org.anddev.andengine.ui.activity.BaseGameActivity.onCreate(BaseGameActivity.java:57)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
09-05 19:02:38.923: ERROR/AndroidRuntime(4161):     ... 11 more

所以，如果有可能请告诉我。谢谢，Suri Sahani。

Answer 1

以下是为您执行此操作的方法：

public static TextureRegion createFromResource(final Texture pTexture, final Context pContext, final int pDrawableResourceID, final int pTexturePositionX, final int pTexturePositionY)

如果您需要创建平铺纹理区域，请使用：

public static TiledTextureRegion createTiledFromResource(final Texture pTexture, final Context pContext, final int pDrawableResourceID, final int pTexturePositionX, final int pTexturePositionY, final int pTileColumns, final int pTileRows)

希望这有帮助。

Answer 2

如果您只是指定了抽奖ID（例如R.drawable.icon），那么根据您的设备，它会从/res/中最适合该设备的文件夹中提取它：

即，

/res/drawable/icon.png 
/res/drawable-large/icon.png

意味着大型设备使用第二个png。

有关supporting multiple screens的更多信息，请访问Android网站。

Answer 3

如果你想从drawable文件夹中获取图片，你应该试试这个 - ＆gt;

Context ctx = getApplicationContext();
Resources r = ctx.getResources();
Drawable d = r.getDrawable(R.drawable.image_name);

如何从drawable文件夹中获取资源 - AndEngine

3 个答案: