{"id":312958,"date":"2024-05-20T22:52:25","date_gmt":"2024-05-20T14:52:25","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/312958.html"},"modified":"2024-05-20T22:52:39","modified_gmt":"2024-05-20T14:52:39","slug":"android-%e6%80%8e%e4%b9%88%e6%88%aa%e5%8f%96%e5%b8%a6%e6%9c%89surfaceview%e6%8e%a7%e4%bb%b6%e7%9a%84app%e7%95%8c%e9%9d%a2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/312958.html","title":{"rendered":"android \u600e\u4e48\u622a\u53d6\u5e26\u6709surfaceview\u63a7\u4ef6\u7684app\u754c\u9762"},"content":{"rendered":"

\"android<\/p>\n

Android\u622a\u53d6\u5e26\u6709SurfaceView\u63a7\u4ef6\u7684APP\u754c\u9762\u901a\u5e38\u662f\u4e00\u4e2a\u6311\u6218\u6027\u4efb\u52a1\uff0c\u4f46\u901a\u8fc7\u6b63\u786e\u7684\u65b9\u6cd5\u548c\u5de5\u5177\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6709\u6548\u7684\u622a\u56fe\u3002\u5173\u952e\u89e3\u51b3\u65b9\u6848\u5305\u62ec\u4f7f\u7528MediaProjection API\u3001\u5229\u7528\u622a\u5c4f\u529f\u80fd\u8fdb\u884c\u5b9a\u5236\u5f00\u53d1<\/strong>\u7b49\u3002\u5728\u5b9e\u8df5\u4e2d\uff0c\u4f7f\u7528MediaProjection API<\/strong>\u662f\u6bd4\u8f83\u5e38\u89c1\u4e14\u6548\u679c\u8f83\u597d\u7684\u65b9\u6cd5\u3002MediaProjection API\u5141\u8bb8\u5e94\u7528\u6355\u83b7\u8bbe\u5907\u5c4f\u5e55\u4e0a\u7684\u5185\u5bb9\uff0c\u5305\u62ecSurfaceView\u663e\u793a\u7684\u5185\u5bb9\uff0c\u800c\u4e14\u4e0d\u9700\u8981root\u6743\u9650\u5c31\u53ef\u4ee5\u5b9e\u73b0\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528MEDIAPROJECTION API<\/h3>\n<\/p>\n

MediaProjection API\u662f\u4eceAndroid 5.0\uff08API\u7b49\u7ea721\uff09\u5f00\u59cb\u5f15\u5165\u3002\u8fd9\u4e2aAPI\u8ba9\u5e94\u7528\u80fd\u591f\u6355\u83b7\u8bbe\u5907\u5c4f\u5e55\u5185\u5bb9\u6216\u8bb0\u5f55\u7cfb\u7edf\u97f3\u9891\u3002\u4e3a\u4e86\u4f7f\u7528MediaProjection API\u622a\u5c4f\uff0c\u9996\u5148\u9700\u8981\u83b7\u5f97\u7528\u6237\u7684\u6743\u9650\uff0c\u901a\u5e38\u662f\u901a\u8fc7\u4e00\u4e2a\u5c4f\u5e55\u6355\u83b7\u7684Intent\u6765\u5b8c\u6210\u7684\u3002<\/p>\n<\/p>\n

\u83b7\u53d6\u7528\u6237\u6743\u9650\uff1a<\/strong><\/p>\n<\/p>\n

    \n
  1. \u521b\u5efa\u4e00\u4e2aMediaProjectionManager\u5b9e\u4f8b\u3002<\/li>\n
  2. \u8c03\u7528createScreenCaptureIntent()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u6355\u83b7\u5c4f\u5e55\u7684Intent\u3002<\/li>\n
  3. \u4f7f\u7528startActivityForResult()\u65b9\u6cd5\u53d1\u9001\u8fd9\u4e2aIntent\uff0c\u8bf7\u6c42\u7528\u6237\u6388\u6743\u3002<\/li>\n<\/ol>\n

    \u6355\u83b7\u5c4f\u5e55\u5185\u5bb9\uff1a<\/strong><\/p>\n<\/p>\n

      \n
    1. \u5f53\u7528\u6237\u6388\u6743\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7onActivityResult()\u56de\u8c03\u63a5\u6536\u4e00\u4e2aMediaProjection\u5bf9\u8c61\uff0c\u8fd9\u610f\u5473\u7740\u5df2\u7ecf\u53d6\u5f97\u622a\u5c4f\u6743\u9650\u3002<\/li>\n
    2. \u521b\u5efa\u4e00\u4e2aVirtualDisplay\uff0c\u5e76\u5c06\u5176\u4e0e\u4e00\u4e2aSurface\u5bf9\u63a5\uff0c\u7528\u4e8e\u63a5\u6536\u5c4f\u5e55\u5185\u5bb9\u7684\u590d\u5236\u3002<\/li>\n
    3. \u8bfb\u53d6Surface\u5185\u5bb9\uff0c\u8fdb\u884c\u5904\u7406\u5b58\u50a8\u3002<\/li>\n<\/ol>\n

      \u4e8c\u3001\u5b9a\u5236\u622a\u5c4f\u529f\u80fd<\/h3>\n<\/p>\n

      \u5bf9\u4e8e\u9700\u8981\u66f4\u7ec6\u81f4\u63a7\u5236\u622a\u5c4f\u8fc7\u7a0b\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u901a\u8fc7\u81ea\u5b9a\u4e49\u65b9\u5f0f\u5b9e\u73b0\u3002\u81ea\u5b9a\u4e49\u622a\u5c4f<\/strong>\u6d89\u53ca\u5bf9SurfaceView\u7684\u5185\u5bb9\u8fdb\u884c\u7279\u5b9a\u5904\u7406\uff0c\u8fd9\u53ef\u80fd\u9700\u8981\u5bf9Android\u56fe\u5f62\u548c\u6e32\u67d3\u4f53\u7cfb\u6709\u6df1\u5165\u7684\u7406\u89e3\u3002<\/p>\n<\/p>\n

      \u76f4\u63a5\u8bfb\u53d6SurfaceView\u5185\u5bb9\uff1a<\/strong><\/p>\n<\/p>\n

        \n
      1. \u7531\u4e8eSurfaceView\u7684\u5185\u5bb9\u5b9e\u9645\u4e0a\u662f\u5728\u4e00\u4e2a\u72ec\u7acb\u7684\u5c42\uff08Layer\uff09\u8fdb\u884c\u7ed8\u5236\u7684\uff0c\u6240\u4ee5\u65e0\u6cd5\u76f4\u63a5\u901a\u8fc7\u5e38\u89c4\u7684View\u622a\u56fe\u65b9\u6cd5\uff08\u5982drawingCache\uff09\u6765\u83b7\u53d6\u3002<\/li>\n
      2. \u53ef\u4ee5\u901a\u8fc7\u5411SurfaceView\u5173\u8054\u7684Surface\u53d1\u51fa\u8bf7\u6c42\uff0c\u628a\u5185\u5bb9\u7ed8\u5236\u5728\u4e00\u4e2aBitmap\u4e0a\uff0c\u518d\u8fdb\u884c\u5904\u7406\u3002\u8fd9\u4e2a\u65b9\u6cd5\u5728\u5b9e\u73b0\u4e0a\u8f83\u4e3a\u590d\u6742\uff0c\u5e76\u4e14\u5bf9\u6027\u80fd\u6709\u4e00\u5b9a\u5f71\u54cd\u3002<\/li>\n<\/ol>\n

        \u7ed3\u5408OpenGL ES\u4f7f\u7528\uff1a<\/strong><\/p>\n<\/p>\n

          \n
        1. \u5982\u679c\u5e94\u7528\u4e2d\u4f7f\u7528\u4e86OpenGL ES\u6765\u6e32\u67d3SurfaceView\u5185\u5bb9\uff0c\u53ef\u4ee5\u5229\u7528OpenGL\u7684\u63a5\u53e3\u6765\u6355\u83b7\u6e32\u67d3\u5185\u5bb9\u3002<\/li>\n
        2. \u901a\u8fc7glReadPixels()\u51fd\u6570\u53ef\u4ee5\u8bfb\u53d6\u5f53\u524dOpenGL\u6e32\u67d3\u7684\u56fe\u50cf\u6570\u636e\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u6570\u636e\u4fdd\u5b58\u4e3a\u56fe\u7247\u3002<\/li>\n<\/ol>\n

          \u4e09\u3001\u622a\u56fe\u540e\u5904\u7406<\/h3>\n<\/p>\n

          \u83b7\u53d6\u5230\u5c4f\u5e55\u5185\u5bb9\u540e\uff0c\u901a\u5e38\u9700\u8981\u5bf9\u622a\u56fe\u8fdb\u884c\u540e\u7eed\u5904\u7406\uff0c\u6bd4\u5982\u538b\u7f29\u3001\u526a\u88c1\u3001\u4fdd\u5b58\u548c\u5206\u4eab<\/strong>\u3002<\/p>\n<\/p>\n

          \u56fe\u7247\u538b\u7f29\uff1a<\/strong><\/p>\n<\/p>\n

            \n
          1. \u5bf9\u4e8e\u9ad8\u5206\u8fa8\u7387\u7684\u622a\u56fe\uff0c\u76f4\u63a5\u4fdd\u5b58\u53ef\u80fd\u4f1a\u5360\u7528\u8f83\u5927\u7684\u5b58\u50a8\u7a7a\u95f4\u3002\u5229\u7528Bitmap.compress()\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u56fe\u7247\u538b\u7f29\u4e3aJPEG\u6216PNG\u683c\u5f0f\uff0c\u4ee5\u51cf\u5c11\u6587\u4ef6\u5927\u5c0f\u3002<\/li>\n
          2. \u538b\u7f29\u8fc7\u7a0b\u4e2d\u53ef\u4ee5\u9009\u62e9\u5408\u9002\u7684\u538b\u7f29\u8d28\u91cf\uff0c\u5e73\u8861\u56fe\u7247\u8d28\u91cf\u548c\u6587\u4ef6\u5927\u5c0f\u3002<\/li>\n<\/ol>\n

            \u56fe\u7247\u4fdd\u5b58\uff1a<\/strong><\/p>\n<\/p>\n

              \n
            1. \u7ecf\u8fc7\u538b\u7f29\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528FileOutputStream\u5c06\u56fe\u7247\u6570\u636e\u5199\u5165\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff0c\u4fdd\u5b58\u4e3a\u56fe\u7247\u6587\u4ef6\u3002<\/li>\n
            2. \u5bf9\u4e8e\u9700\u8981\u9891\u7e41\u64cd\u4f5c\u7684\u5e94\u7528\uff0c\u8003\u8651\u5c06\u56fe\u7247\u4fdd\u5b58\u5728\u7f13\u5b58\u76ee\u5f55\uff0c\u53ef\u4ee5\u51cf\u5c11\u5bf9\u6301\u4e45\u5b58\u50a8\u7684\u5360\u7528\u3002<\/li>\n<\/ol>\n

              \u56fe\u7247\u5206\u4eab\uff1a<\/strong><\/p>\n<\/p>\n

                \n
              1. Android\u63d0\u4f9b\u4e86Intent\u673a\u5236\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u4e0e\u5176\u4ed6\u5e94\u7528\u5206\u4eab\u6587\u4ef6\uff0c\u5305\u62ec\u56fe\u7247\u3002\u901a\u8fc7\u8bbe\u7f6eIntent\u7684Action\u4e3aIntent.ACTION_SEND\uff0c\u5e76\u5c06\u56fe\u7247URI\u9644\u52a0\u5230Intent\u4e2d\uff0c\u53ef\u4ee5\u89e6\u53d1\u5206\u4eab\u64cd\u4f5c\u3002<\/li>\n
              2. \u4e3a\u4e86\u8ba9\u5176\u4ed6\u5e94\u7528\u8bbf\u95ee\u56fe\u7247\uff0c\u53ef\u80fd\u9700\u8981\u5c06\u56fe\u7247\u4fdd\u5b58\u5728\u5916\u90e8\u5b58\u50a8\u7684\u5171\u4eab\u76ee\u5f55\uff0c\u6216\u8005\u4f7f\u7528FileProvider\u5728\u5e94\u7528\u95f4\u5b89\u5168\u5730\u5171\u4eab\u6587\u4ef6\u3002<\/li>\n<\/ol>\n

                \u901a\u8fc7\u4e0a\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u867d\u7136Android\u622a\u53d6\u5e26\u6709SurfaceView\u63a7\u4ef6\u7684APP\u754c\u9762\u5b58\u5728\u4e00\u5b9a\u7684\u590d\u6742\u6027\uff0c\u4f46\u501f\u52a9\u6b63\u786e\u7684\u5de5\u5177\u548c\u65b9\u6cd5\uff0c\u4ecd\u7136\u53ef\u4ee5\u5b9e\u73b0\u9ad8\u6548\u3001\u7075\u6d3b\u7684\u5c4f\u5e55\u622a\u56fe\u529f\u80fd\u3002\u4ece\u4f7f\u7528MediaProjection API\u5230\u8fdb\u884c\u5b9a\u5236\u5f00\u53d1\uff0c\u4e0d\u540c\u7684\u573a\u666f\u548c\u9700\u6c42\u53ef\u80fd\u9700\u8981\u4e0d\u540c\u7684\u89e3\u51b3\u65b9\u6848\u3002\u5728\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\uff0c\u8fd8\u9700\u8981\u6ce8\u610f\u622a\u56fe\u6743\u9650\u7684\u83b7\u53d6\u3001\u56fe\u50cf\u5904\u7406\u548c\u5b58\u50a8\u7684\u4f18\u5316\uff0c\u4ee5\u53ca\u4e0e\u7528\u6237\u6570\u636e\u4fdd\u62a4\u76f8\u5173\u7684\u6cd5\u5f8b\u6cd5\u89c4\u3002<\/p>\n<\/p>\n

                \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

                Q: \u5982\u4f55\u622a\u53d6\u5e26\u6709SurfaceView\u63a7\u4ef6\u7684Android\u5e94\u7528\u754c\u9762\uff1f<\/strong><\/p>\n

                A: \u622a\u53d6\u5e26\u6709SurfaceView\u63a7\u4ef6\u7684Android\u5e94\u7528\u754c\u9762\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n

                  \n
                1. \n

                  \u4f7f\u7528MediaProjection API\uff1a<\/strong> \u5728Android 5.0\u53ca\u4ee5\u4e0a\u7248\u672c\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528MediaProjection API\u6765\u622a\u53d6\u5c4f\u5e55\u5185\u5bb9\uff0c\u5305\u62ecSurfaceView\u3002\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aMediaProjection\u5bf9\u8c61\uff0c\u7136\u540e\u5c06\u5b83\u4e0e\u4e00\u4e2aMediaProjectionCallback\u5bf9\u8c61\u5173\u8054\uff0c\u53ef\u4ee5\u83b7\u53d6\u5230\u5c4f\u5e55\u5185\u5bb9\u7684\u56fe\u50cf\u6570\u636e\u3002\u53ef\u4ee5\u4f7f\u7528MediaCodec\u7b49\u5de5\u5177\u5c06\u56fe\u50cf\u6570\u636e\u4fdd\u5b58\u4e3a\u56fe\u7247\u6216\u89c6\u9891\u3002<\/p>\n<\/li>\n

                2. \n

                  \u4f7f\u7528Drawing Cache\uff1a<\/strong> SurfaceView\u662f\u76f4\u63a5\u7ed8\u5236\u5728\u5c4f\u5e55\u4e0a\u7684\uff0c\u65e0\u6cd5\u76f4\u63a5\u901a\u8fc7View\u5bf9\u8c61\u7684Drawing Cache\u6765\u622a\u53d6\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06SurfaceView\u7ed8\u5236\u5728\u4e00\u4e2a\u65b0\u521b\u5efa\u7684Bitmap\u4e0a\uff0c\u7136\u540e\u5c06Bitmap\u4fdd\u5b58\u4e3a\u56fe\u7247\u6765\u622a\u53d6\u6574\u4e2a\u754c\u9762\u3002\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e0eSurfaceView\u76f8\u540c\u7684Bitmap\u5bf9\u8c61\uff0c\u7136\u540e\u901a\u8fc7Canvas\u7ed8\u5236SurfaceView\u7684\u5185\u5bb9\u5230\u8be5Bitmap\u5bf9\u8c61\u4e0a\uff0c\u6700\u540e\u5c06Bitmap\u4fdd\u5b58\u4e3a\u56fe\u7247\u3002<\/p>\n<\/li>\n

                3. \n

                  \u4f7f\u7528RenderScript\uff1a<\/strong> RenderScript\u662fAndroid\u63d0\u4f9b\u7684\u56fe\u50cf\u5904\u7406\u6846\u67b6\uff0c\u53ef\u4ee5\u5229\u7528\u5b83\u6765\u622a\u53d6\u5305\u542bSurfaceView\u7684\u5e94\u7528\u754c\u9762\u3002\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2aRenderScript\u5bf9\u8c61\u548c\u4e00\u4e2a\u7528\u4e8e\u8f93\u51fa\u7684Allocation\u5bf9\u8c61\uff0c\u7136\u540e\u5c06SurfaceView\u5185\u5bb9\u590d\u5236\u5230Allocation\u5bf9\u8c61\u4e2d\u3002\u6700\u540e\uff0c\u5c06Allocation\u5bf9\u8c61\u4fdd\u5b58\u4e3a\u56fe\u7247\u3002<\/p>\n<\/li>\n<\/ol>\n

                  \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e0a\u8ff0\u65b9\u6cd5\u90fd\u9700\u8981\u5728AndroidManifest.xml\u6587\u4ef6\u4e2d\u6dfb\u52a0\u76f8\u5e94\u7684\u6743\u9650\uff0c\u5e76\u4e14\u9700\u8981\u5728\u5408\u9002\u7684\u65f6\u673a\u6267\u884c\u622a\u53d6\u64cd\u4f5c\uff0c\u4f8b\u5982\u5728\u7528\u6237\u70b9\u51fb\u622a\u53d6\u6309\u94ae\u65f6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Android\u622a\u53d6\u5e26\u6709SurfaceView\u63a7\u4ef6\u7684APP\u754c\u9762\u901a\u5e38\u662f\u4e00\u4e2a\u6311\u6218\u6027\u4efb\u52a1\uff0c\u4f46\u901a\u8fc7\u6b63\u786e\u7684\u65b9\u6cd5\u548c\u5de5\u5177\uff0c\u53ef\u4ee5 […]","protected":false},"author":3,"featured_media":312981,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/312958"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=312958"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/312958\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/312981"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=312958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=312958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=312958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}