{"id":4982,"date":"2023-10-14T18:59:35","date_gmt":"2023-10-14T10:59:35","guid":{"rendered":"https:\/\/blog.coderfan.org\/?p=4982"},"modified":"2024-01-17T10:44:03","modified_gmt":"2024-01-17T02:44:03","slug":"android12-compilation-resources-overlay","status":"publish","type":"post","link":"https:\/\/blog.coderfan.org\/en\/android12-compilation-resources-overlay.html","title":{"rendered":"Android12\u7f16\u8bd1\u914d\u7f6eOverlay\u5b9e\u73b0\u673a\u5236"},"content":{"rendered":"
\n
\n \t<\/i> Read Time:<\/span>2 Minute, 10 Second <\/div>\n\n <\/div>\n

\u5728Android Framework\u5c42\u6709\u5f88\u591a\u914d\u7f6e\u662f\u901a\u8fc7XML\u7684\u5f62\u5f0f\u8fdb\u884c\u8bbe\u7f6e\u7684\uff0c\u4ee5CarService\u4e3a\u4f8b\uff0c\u5176\u539f\u751f\u914d\u7f6e\u4f4d\u4e8epackages\/services\/Car\/service\/res\/values\/config.xml\u6587\u4ef6\u5185\uff0c\u91cc\u9762\u901a\u5e38\u5305\u542b\u4e86\u5404\u4e2a\u5b50manager\u7684\u76f8\u5173\u914d\u7f6e\u4fe1\u606f\uff0c\u8fd9\u91cc\u6458\u5f55\u90e8\u5206\uff1a<\/p>\n\n\n\n

<string name=\"config_evsRearviewCameraId\" translatable=\"false\">\/dev\/video0<\/string>\n<string name=\"config_template_activity_class_name\">\n        androidx.car.app.activity.CarAppActivity\n<\/string><\/code><\/pre>\n\n\n\n
\u5728\u8fd9\u4e2a\u914d\u7f6e\u4e2d\uff0cname\u6307\u4ee3\u5177\u4f53\u7684\u914d\u7f6e\u540d\u79f0\uff0cstring\u6307\u4ee3\u5176\u6570\u636e\u7c7b\u578b\uff0c\u800c\u6807\u7b7e\u5185\u7684\u5185\u5bb9\u5373\u4e3a\u8be5\u914d\u7f6e\u5bf9\u5e94\u7684\u503c\uff1b\u5728\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u9ed8\u8ba4\u7684config_evsRearviewCameraId\u914d\u7f6e\u4e3a\/dev\/video0\uff1b\u5728CarEvsManager\u5185\u4f1a\u901a\u8fc7\u8bfb\u53d6\u8be5\u914d\u7f6e\u4fe1\u606f\uff0c\u4ece\u800c\u6253\u5f00\u76f8\u5e94\u7684Camera\u8bbe\u5907\uff0c\u5176\u76f8\u5173\u6e90\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n
\/\/packages\/services\/Car\/service\/src\/com\/android\/car\/evs\/CarEvsService.java\nString cameraId;\nif (mUseCameraIdOverride) {\n      cameraId = mCameraIdOverride;\n} else {\n      cameraId = mContext.getString(R.string.config_evsRearviewCameraId);\n   }\n\nif (!nativeOpenCamera(mNativeEvsServiceObj, cameraId)) {\n      Slog.e(TAG_EVS, \"Failed to open a target camera device\");\n      return false;\n}<\/code><\/pre>\n\n\n\n
\u5728\u6211\u4eec\u5b9e\u9645\u5f00\u53d1\u65f6\uff0c\u4e0e\u786c\u4ef6\u76f8\u5173\u7684\u914d\u7f6e\u5f80\u5f80\u662f\u591a\u6837\u7684\uff0c\u4f9d\u636e\u786c\u4ef6\u8bbe\u8ba1\u800c\u53d8\u5316\uff0c\u6b64\u65f6\u6211\u4eec\u5c31\u9700\u8981\u6765\u5bf9\u8fd9\u4e9b\u5dee\u5f02\u9879\u8fdb\u884c\u7ba1\u7406\uff0c\u4f7f\u5176\u80fd\u591f\u6ee1\u8db3\u6211\u4eec\u591a\u6837\u5316\u7684\u9700\u6c42\u3002\u800cGoogle\u5176\u5b9e\u4e5f\u65e9\u5c31\u8003\u8651\u5230\u4e86\u8fd9\u4e00\u70b9\uff0c\u5e76\u5728\u5176\u7f16\u8bd1\u7cfb\u7edf\u5185\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u76f8\u5173\u4e86\u5de5\u5177\uff0c\u672c\u7bc7\u6587\u7ae0\u5c06\u4ece\u5b9e\u8df5\u51fa\u53d1\uff0c\u804a\u804a\u5176Overlay\u914d\u7f6e\u7684\u5b9e\u73b0\u673a\u5236\u3002<\/p>\n\n\n\n
\u5728\u9762\u5bf9\u4e0a\u9762\u573a\u666f\u65f6\uff0c\u6211\u4eec\u5927\u81f4\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\u6765\u5b9e\u73b0\u914d\u7f6e\u7ba1\u7406\u3002<\/p>\n\n\n\n
\u7b2c\u4e00\u6b65\uff0c\u6211\u4eec\u9700\u8981\u5728\u5408\u9002\u7684\u4f4d\u7f6e\u521b\u5efaoverlay\u6587\u4ef6\u5939\uff0c\u5e76\u9012\u5f52\u521b\u5efa\u4e0e\u6211\u4eec\u9700\u8981overlay\u914d\u7f6e\u6240\u540c\u540d\u7684\u6587\u4ef6\u5939\uff0c\u5728\u6b64\u793a\u4f8b\u4e2d\u4e3apackages\/services\/Car\/service\/res\/values\/\uff0c\u5e76\u521b\u5efa\u540c\u540d\u7684\u914d\u7f6e\u6587\u4ef6config.xml \u3002\u6545\u6b64\uff0c\u5b8c\u6574\u8def\u5f84\u4e3a${SELF_DEFINED_DIR}\/overlay\/packages\/services\/Car\/service\/res\/values\/config.xml\uff1b\u4e00\u822c\u6211\u4eec\u4e3a\u81ea\u5df1\u7684board\u5728device\u76ee\u5f55\u4e0b\u521b\u5efa\u5c5e\u4e8e\u81ea\u5df1\u5e73\u53f0\u7684\u6587\u4ef6\u5939\uff0c\u5e76\u5c06\u9700\u8981overlay\u7684\u914d\u7f6e\u653e\u7f6e\u5230\u8be5\u6587\u4ef6\u5939\u5185\u3002<\/p>\n\n\n\n
\u7b2c\u4e8c\u6b65\uff0c\u7f16\u8f91config.xml\uff0c\u5c06\u6211\u4eec\u9700\u8981\u8fdb\u884c\u66ff\u6362\u7684\u914d\u7f6e\u9879\u5199\u5165\uff0c\u6bd4\u5982\u8fd9\u91cc\u6211\u4eec\u5c06config_evsRearviewCameraId\u914d\u7f6e\u503c\u7531\u9ed8\u8ba4\u7684\/dev\/video0\u53d8\u4e3a\/dev\/video12\uff1a<\/p>\n\n\n\n
<string name=\"config_evsRearviewCameraId\" translatable=\"false\">\/dev\/video12<\/string><\/code><\/pre>\n\n\n\n
\u7b2c\u4e09\u6b65\uff0c\u65b0\u5efaMakefile\uff0c\u4e00\u822c\u4f1a\u4e0eoverlay\u6587\u4ef6\u5939\u540c\u7ea7\uff0c\u5728\u8be5Makefile\u5185\uff0c\u901a\u8fc7PRODUCT_PACKAGE_OVERLAYS\u6216DEVICE_PACKAGE_OVERLAYS\u5173\u952e\u5b57\u6765\u5b8c\u6210\u66ff\u6362\uff1a<\/p>\n\n\n\n
DEVICE_PACKAGE_OVERLAYS += ${SELF_DEFINED_DIR}\/overlay<\/code><\/pre>\n\n\n\n
\u5b8c\u6210\u4e0a\u8ff0\u914d\u7f6e\u4e4b\u540e\uff0c\u6211\u4eec\u518d\u8fdb\u884c\u7f16\u8bd1\uff0c\u7f16\u8bd1\u4e4b\u540e\u5f97\u5230\u5177\u4f53\u7684CarService.apk\u6587\u4ef6\uff0c\u6211\u4eec\u5355\u7eaf\u89e3\u538b\u8be5apk\u6587\u4ef6\u662f\u65e0\u6cd5\u5f97\u5230\u5176\u914d\u7f6e\u4fe1\u606f\u7684\uff0c\u6b64\u65f6\u6211\u4eec\u53ef\u4ee5\u501f\u52a9aapt\u5de5\u5177\u6765\u83b7\u53d6apk\u5185\u7684\u914d\u7f6e\u4fe1\u606f\uff1a<\/p>\n\n\n\n
aapt  dump strings CarService.apk  | grep \u201cevsRearviewCameraId\u201d<\/code><\/pre>\n\n\n\n
\u901a\u8fc7\u8fd9\u6837\u7684\u65b9\u5f0f\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u68c0\u9a8cOverlay\u7684\u914d\u7f6e\u662f\u5426\u751f\u6548\uff1b\u540c\u65f6\u6211\u4eec\u8fd8\u4f1a\u53d1\u73b0\uff0c\u672a\u88ab\u66ff\u6362\u7684\u914d\u7f6e\u5185\u5bb9\u4ecd\u65e7\u4fdd\u6301\u539f\u6837\uff0c\u8fd9\u53ef\u4ee5\u8bf4\u660eoverlay\u5e76\u975e\u662f\u7b80\u5355\u7684\u6587\u4ef6\u66ff\u6362\uff0c\u66f4\u50cf\u662f\u5b57\u6bb5\u66ff\u6362\uff0c\u5177\u4f53\u7684\u903b\u8f91\u662f\u5982\u4f55\u5b9e\u73b0\u7684\u5462\u3002\u8fd9\u91cc\u6709\u4e24\u4e2a\u5173\u952e\u7684Makefile\uff1a<\/p>\n\n\n\n
\/\/build\/make\/core\/package_internal.mk\uff1a\n$(wildcard $(foreach dir, $(PRODUCT_PACKAGE_OVERLAYS), \\\n      $(addprefix $(dir)\/, $(LOCAL_RESOURCE_DIR)))))\ndevice_package_overlays := $(strip \\\n$(wildcard $(foreach dir, $(DEVICE_PACKAGE_OVERLAYS), \\\n      $(addprefix $(dir)\/, $(LOCAL_RESOURCE_DIR)))))<\/code><\/pre>\n\n\n\n
\/\/build\/make\/core\/aapt2.mk\uff1a\nmy_overlay_resources_flat := \\\n  $(foreach r, $(my_overlay_resources),\\\n    $(eval o := $(call aapt2-compiled-resource-out-file,$(r),$(my_compiled_res_base_dir)))\\\n    $(eval $(call aapt2-compile-one-resource-file-rule,$(r),$(o)))\\\n    $(o))<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u9762\u6d89\u53ca\u5230\u4e24\u4e2a\u81ea\u5b9a\u4e49\u7684\u51fd\u6570\uff1aaapt2-compiled-resource-out-file\u3001aapt2-compile-one-resource-file-rule,\u8fd9\u4e24\u4e2a\u81ea\u5b9a\u4e49\u7684\u51fd\u6570\u6211\u4eec\u53ef\u4ee5\u5728definitions.mk\u4e2d\u627e\u5230\uff1a<\/p>\n\n\n\n
\/\/build\/make\/core\/definitions.mk\n# Convert input resource file path to output file path.\n# values-[config]\/<file>.xml -> values-[config]_<file>.arsc.flat;\n# For other resource file, just replace the last \"\/\" with \"_\" and\n# add .flat extension.\n#\n# $(1): the input resource file path\n# $(2): the base dir of the output file path\n# Returns: the compiled output file path\ndefine aapt2-compiled-resource-out-file\n$(strip \\\n  $(eval _p_w := $(strip $(subst \/,$(space),$(dir $(call clean-path,$(1))))))\n  $(2)\/$(subst $(space),\/,$(_p_w))_$(if $(filter values%,$(lastword $(_p_w))),$(patsubst %.xml,%.arsc,$(notdir $(1))),$(notdir $(1))).flat)\nendef\n\n# Set up rule to compile one resource file with aapt2.\n# Must be called with $(eval).\n# $(1): the source file\n# $(2): the output file\ndefine aapt2-compile-one-resource-file-rule\n$(2) : $(1) $(AAPT2)\n\t@echo \"AAPT2 compile $$@ <- $$<\"\n\t$$(call aapt2-compile-one-resource-file)\nendef\n\ndefine aapt2-compile-one-resource-file\n@mkdir -p $(dir $@)\n$(hide) $(AAPT2) compile -o $(dir $@) $(PRIVATE_AAPT2_CFLAGS) $<\nendef<\/code><\/pre>\n\n\n\n
<\/p>\n        
\n            
\n                \n                
\n                    \n                        \"Happy\"\n                    <\/a>\n                    
\n                        Happy                    <\/div>\n                    
\n                                                    0<\/span>\n                        \n                                                0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Sad\"\n                    <\/a>\n                    
\n                        Sad                    <\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Excited\"\n                    <\/a>\n                    
\n                        Excited                    <\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Sleepy\"\n                    <\/a>\n                    
\n                        Sleepy                    <\/div>\n                    
\n                                                    0<\/span>\n                        \n                                                0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Angry\"\n                    <\/a>\n                    
Angry<\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                        \n                    <\/div>\n                <\/div>\n\n                
\n                    \n                        \"Surprise\"\n                    <\/a>\n                    
Surprise<\/div>\n                    
\n                                                    0<\/span>\n                                                                        0<\/span> %<\/span>\n                                            <\/div>\n                <\/div>\n\n            <\/div>\n        <\/div>","protected":false},"excerpt":{"rendered":"
Android12\u7f16\u8bd1\u914d\u7f6eOverlay\u5b9e\u73b0<\/p>","protected":false},"author":1,"featured_media":4483,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_editorskit_title_hidden":false,"_editorskit_reading_time":1,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[18],"tags":[46],"class_list":["post-4982","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-operating-system","tag-android"],"blocksy_meta":[],"aioseo_notices":[],"featured_image_urls":{"full":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"thumbnail":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-150x150.jpg",150,150,true],"medium":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-300x158.jpg",300,158,true],"medium_large":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"large":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"1536x1536":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"2048x2048":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"trp-custom-language-flag":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-18x9.jpg",18,9,true]},"post_excerpt_stackable":"
Android12\u7f16\u8bd1\u914d\u7f6eOverlay\u5b9e\u73b0<\/p>\n","category_list":"\u64cd\u4f5c\u7cfb\u7edf<\/a>","author_info":{"name":"FranzKafka95","url":"https:\/\/blog.coderfan.org\/en\/author\/yushenglonely95"},"comments_num":"1 comment","featured_image_urls_v2":{"full":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"thumbnail":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-150x150.jpg",150,150,true],"medium":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-300x158.jpg",300,158,true],"medium_large":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"large":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"1536x1536":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"2048x2048":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android.jpg",512,269,false],"trp-custom-language-flag":["https:\/\/blog.coderfan.org\/wp-content\/uploads\/2023\/04\/android-18x9.jpg",18,9,true]},"post_excerpt_stackable_v2":"
Android12\u7f16\u8bd1\u914d\u7f6eOverlay\u5b9e\u73b0<\/p>\n","category_list_v2":"\u64cd\u4f5c\u7cfb\u7edf<\/a>","author_info_v2":{"name":"FranzKafka95","url":"https:\/\/blog.coderfan.org\/en\/author\/yushenglonely95"},"comments_num_v2":"1 comment","_links":{"self":[{"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/posts\/4982","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/comments?post=4982"}],"version-history":[{"count":3,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/posts\/4982\/revisions"}],"predecessor-version":[{"id":5098,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/posts\/4982\/revisions\/5098"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/media\/4483"}],"wp:attachment":[{"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/media?parent=4982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/categories?post=4982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.coderfan.org\/en\/wp-json\/wp\/v2\/tags?post=4982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}