解决MacBook M1下无法运行uiautomatorviewer

2021-04-06 102 words One minute

Contents

MacBook使用ARM芯片后虽然带来了性能和续航的提升，但是也带来了不少兼容性问题，好在发布几个月后主流的开发工具都慢慢适配完毕，然而一些小众的工具迟迟无法引来更新。所以Rosetta 2模式仍然非常重要。

默认情况下，我们执行./uiautomatorviewer会报错:

SWT folder '/Users/xxx/Library/Android/sdk/tools/lib/aarch64' does not exist.
Please export ANDROID_SWT to point to the folder containing swt.jar for your platform.

意思是lib下没有aarch64这个目录。

尝试方案1：在lib下建立aarch64目录，网上找aarch64版本的swt.jar，无果。最终报错如下：

Exception in thread "main" java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
	no swt-cocoa-4936r26 in java.library.path
	no swt-cocoa in java.library.path
	Can't load library: /Users/xxx/.swt/lib/macosx/aarch64/libswt-cocoa-4936r26.jnilib
	Can't load library: /Users/xxx/.swt/lib/macosx/aarch64/libswt-cocoa.jnilib
	/Users/xxx/.swt/lib/macosx/aarch64/libswt-cocoa-4936r26.jnilib: dlopen(/Users/xxx/.swt/lib/macosx/aarch64/libswt-cocoa-4936r26.jnilib, 1): no suitable image found.  Did find:
	/Users/xxx/.swt/lib/macosx/aarch64/libswt-cocoa-4936r26.jnilib: mach-o, but wrong architecture
	/Users/xxx/.swt/lib/macosx/aarch64/libswt-cocoa-4936r26.jnilib: mach-o, but wrong architecture

	at org.eclipse.swt.internal.Library.loadLibrary(Library.java:338)
	at org.eclipse.swt.internal.Library.loadLibrary(Library.java:257)
	at org.eclipse.swt.internal.C.<clinit>(C.java:19)
	at org.eclipse.swt.internal.cocoa.NSMutableArray.arrayWithCapacity(NSMutableArray.java:39)
	at org.eclipse.swt.widgets.Canvas.<clinit>(Canvas.java:55)
	at org.eclipse.jface.window.Window.createShell(Window.java:487)
	at org.eclipse.jface.window.Window.create(Window.java:430)
	at org.eclipse.jface.window.Window.open(Window.java:790)
	at com.android.uiautomator.UiAutomatorViewer.main(UiAutomatorViewer.java:78)

折腾许久也没找到解决方案，放弃。

尝试方案2：既然增加aarch64支持的方案无法解决，那就只能尝试Rosetta 2方式了。运行arch -x86_64 ./uiautomatorviewer无效果。

uiautomatorviewer依赖Java环境，我使用的是zulu arm版本jdk，所以切换jdk为x64版本。 export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_281.jdk/Contents/Home

然后再次执行./uiautomatorviewer，成功运行。