Android4.4 Camera Gallery 分离
Google发布了新的4.4版本,在 /packages/apps/目录下,发现多了一个Camera2 目录,原来 从android4.4开始,Google又把 Camera 和 Gallery 独立成了两个应用。
虽然在Camera2 的 AndroidManifast 中定义的包名为:package="com.android.camera2"
但是,Camera2中所有class的包名还是"com.android.camera",就是说class的包名,google并没有去改变。
在4.4的gallery2源码中,会发现多了一个class:CameraActivity ,这个activity之前是没有的。CameraActivity 的实现很简单,代码如下:
/** Trampoline activity that launches the new Camera activity defined in IntentHelper. */public class CameraActivity extends Activity { @Override public void onCreate(Bundle icicle) { super.onCreate(icicle); Intent intent= IntentHelper.getCameraIntent(CameraActivity.this); // Since this is being launched from a homescreen shorcut, // it's already in a new task. Start Camera activity and // reset the task to its initial state if needed. intent.setFlags(Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); startActivity(intent); finish(); }}
public class IntentHelper { public static Intent getCameraIntent(Context context) { return new Intent(Intent.ACTION_MAIN) .setClassName("com.android.camera2", "com.android.camera.CameraActivity"); } public static Intent getGalleryIntent(Context context) { return new Intent(Intent.ACTION_MAIN) .setClassName("com.android.gallery3d", "com.android.gallery3d.app.GalleryActivity"); }}
LOCAL_SRC_FILES += $(call all-java-files-under, ../Camera/src)LOCAL_RESOURCE_DIR += packages/apps/Camera/res