为sdk 1.6编译Android相机应用程序
我正在尝试编译并运行 sdk 1.6（也称为API 级别 4 或 Donut 版本）。
虽然 AndroidManifest 中没有 minSdkVersion，但它显然不能在甜甜圈设备上运行。事实上，如果使用 sdk 2.2 进行编译，相机将在使用 sdk 1.6 的 avd 或 G1 上崩溃并出现 NoSuchMethodError 执行。
我也尝试检查 [donut-release] 标签，但是，奇怪的是，它甚至不会编译，并给出许多错误，例如：
[javac] /home/mrucci/camtest2/src/com/android/camera/ImageManager.java:41: cannot find symbol
[javac] symbol : class DrmStore
[javac] location: package android.provider
[javac] import android.provider.DrmStore;
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/Util.java:32: cannot find symbol
[javac] symbol : class MediaMetadataRetriever
[javac] location: package android.media
[javac] import android.media.MediaMetadataRetriever;
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/MenuHelper.java:29: cannot find symbol
[javac] symbol : class ExifInterface
[javac] location: package android.media
[javac] import android.media.ExifInterface;
....
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/ActionMenuButton.java:81: cannot find symbol
[javac] symbol : variable mScrollX
[javac] location: class com.android.camera.ActionMenuButton
[javac] mScrollX + mRight - mLeft),
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/ActionMenuButton.java:81: cannot find symbol
[javac] symbol : variable mRight
[javac] location: class com.android.camera.ActionMenuButton
[javac] mScrollX + mRight - mLeft),
特别是，我真的不明白为什么 ExifInterface 自 API 级别 5 以来引入，用于“donut”标签中。我是否遗漏了什么？
I am trying to compile and run the Android Camera for sdk 1.6 (also called API level 4 or Donut release).
While there is no minSdkVersion in the AndroidManifest, it clearly does not run on a donut device. In fact, if compiled with sdk 2.2 the camera will crash with a NoSuchMethodError execption on an avd or a G1 with sdk 1.6.
I tried also checking out the [donut-release] tag, but, strangely, it won't even compile giving many errors like:
[javac] /home/mrucci/camtest2/src/com/android/camera/ImageManager.java:41: cannot find symbol
[javac] symbol : class DrmStore
[javac] location: package android.provider
[javac] import android.provider.DrmStore;
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/Util.java:32: cannot find symbol
[javac] symbol : class MediaMetadataRetriever
[javac] location: package android.media
[javac] import android.media.MediaMetadataRetriever;
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/MenuHelper.java:29: cannot find symbol
[javac] symbol : class ExifInterface
[javac] location: package android.media
[javac] import android.media.ExifInterface;
....
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/ActionMenuButton.java:81: cannot find symbol
[javac] symbol : variable mScrollX
[javac] location: class com.android.camera.ActionMenuButton
[javac] mScrollX + mRight - mLeft),
[javac] ^
[javac] /home/mrucci/camtest2/src/com/android/camera/ActionMenuButton.java:81: cannot find symbol
[javac] symbol : variable mRight
[javac] location: class com.android.camera.ActionMenuButton
[javac] mScrollX + mRight - mLeft),
In particular, I really do not understand why ExifInterface is used in the "donut" tag when it has been introduced since API level 5. Am I missing something?
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其中一些类通过
@hide注释对 sdk 隐藏。因此，只有拉下并构建所有 aosp 才能构建。https://github.com/ android/platform_frameworks_base/blob/donut-release/media/java/android/media/MediaMetadataRetriever.java
Some of these classes are hidden from the sdk with the
@hideannotation. So you can only build if you pull down and build all of aosp.https://github.com/android/platform_frameworks_base/blob/donut-release/media/java/android/media/MediaMetadataRetriever.java
您是否尝试使用最新版本？它利用了一大堆新的 API，并且很难在低于其目标的 API 4 级别上工作。不过，此处的修订版应该仅编译美好的。
Are you trying to use the latest revision? It takes advantage of a whole bunch of new APIs and would be very difficult to get working on an API 4 levels below its target. The revision at here, however, should compile just fine.