{"id":1536,"date":"2019-12-11T20:27:21","date_gmt":"2019-12-11T12:27:21","guid":{"rendered":"https:\/\/xbtzone.com\/blog\/?p=1536"},"modified":"2020-05-20T11:49:44","modified_gmt":"2020-05-20T03:49:44","slug":"android-9-permission-management","status":"publish","type":"post","link":"https:\/\/xbtzone.com\/blog\/android-9-permission-management\/","title":{"rendered":"Day 205 \bAndroid 9 \u4e4b\u540e\b\u7684\u5916\u7f6e\u50a8\u5b58\u8bfb\u5199\u6743\u9650\u7ba1\u7406"},"content":{"rendered":"\n<p>\u8fd9\u4e2a\u5b66\u671f\u9700\u8981\u5b8c\u6210\u4e00\u9879\u8bfe\u7a0b\u8bbe\u8ba1\uff0c\u6211\u5e26\u7684\u5c0f\u7ec4\u9009\u4e86\u4e00\u4e2a\u524d\u7aef\u9879\u76ee\u7684\u8bfe\u9898\u3002<\/p>\n\n\n\n<p>\u4e0d\u8fc7\u8bf4\u5b9e\u8bdd\uff0c\u6ca1\u591a\u5c11\u4eba\u613f\u610f\u5199\u524d\u7aef\u7684\u3002<\/p>\n\n\n\n<p>\u8bfe\u9898\u8981\u6c42\u7f16\u5199\u4e00\u4e2a\u5b89\u5353\u7684 App\uff0c\u5177\u5907\u5f55\u97f3\u3001\u64ad\u653e\u548c\u4fdd\u5b58\u5f55\u97f3\u6587\u4ef6\u5230\u5916\u7f6e\u50a8\u5b58\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u5728\u6211\u5c0f\u7ec4\u91cc\u7684\u540c\u5b66\u6709\u5b89\u5353\u5f00\u53d1\u7ecf\u9a8c\u7684\u5e76\u4e0d\u591a\uff0c\u8d1f\u8d23\u6253\u6846\u67b6\u7684\u540c\u5b66\u5728\u9879\u76ee\u521d\u671f\u5c31\u9047\u5230\u4e86\u68d8\u624b\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u6211\u7ffb\u67e5\u4e86\u4e00\u4e0b\u4ed6\u5199\u7684\u4ee3\u7801&#8230;&#8230;<\/p>\n\n\n\n<p>\u4ed6\u5199\u7684\u4ee3\u7801\u53ef\u8bfb\u6027\uff0c\u5b9e\u5728\u4e0d\u6562\u606d\u7ef4\uff0c\u5927\u6982\u662f\u4ece\u7f51\u4e0a\u67d0\u7bc7\u6587\u7ae0\u590d\u5236\u7c98\u8d34\u4e0b\u6765\u7684\u5427\uff1f<\/p>\n\n\n\n<p>\u7ecf\u8fc7\u6211\u7684\u8c03\u6574\uff0c\u521d\u671f\u6846\u67b6\u7ec8\u4e8e\u5230\u4e86\u53ef\u8fd0\u884c\u7684\u7a0b\u5ea6\u3002\u7136\u800c\u4e00\u5f00\u59cb\u5f55\u97f3\u7a0b\u5e8f\u5c31\u95ea\u9000\u4e86\u3002<\/p>\n\n\n\n<p>\u6d4b\u8bd5\u73af\u5883\u662f Android 10\uff0c\u7ecf\u8fc7\u8c03\u8bd5\u53d1\u73b0\u8fd8\u6ca1\u5f00\u59cb\u8bbf\u95ee\u5f55\u97f3\u8bbe\u5907\uff0c\u7a0b\u5e8f\u5c31\u629b\u51fa\u4e86\u4e00\u4e2a IOExcepition\uff0c\u5177\u4f53\u539f\u56e0\u662f Permission Denied\uff0c\u5373\u6743\u9650\u88ab\u62d2\u3002<\/p>\n\n\n\n<p>\u540e\u6765\u8c03\u6574\u4e86\u4e00\u4e0b\u6d4b\u8bd5\u73af\u5883\uff0c\u6362\u6210\u4e86\u6211\u7684\u6d4b\u8bd5\u673a\uff0c\u4e00\u53f0\u4e09\u661f Note 3\uff0c\u642d\u8f7d Android 4.3 \u7cfb\u7edf\uff0c\u6ca1\u6709\u51fa\u73b0\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u67e5\u9605\u4e86\u4e00\u4e9b\u8d44\u6599\uff0c\u539f\u6765\u662f Andorid 9 \u4e4b\u540e\uff0c\u5bf9\u4e8e\u5916\u7f6e\u50a8\u5b58\u7684\u8bfb\u5199\u8bbf\u95ee\u6743\u9650\u8fdb\u884c\u4e86\u8c03\u6574\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u7a0b\u5e8f\u9700\u8981\u5728 AndroidManifest.xml \u6587\u4ef6\u91cc\u58f0\u660e\u4e0b\u9762\u4e24\u4e2a\u6743\u9650\u4e4b\u5916\uff0c\u8fd9\u4e24\u4e2a\u5173\u4e8e\u5916\u7f6e\u50a8\u5b58\u7684\u8bfb\u5199\u6743\u9650\u8fd8\u9700\u8981\u518d\u989d\u5916\u5730\u8ba9\u7528\u6237\u624b\u52a8\u786e\u8ba4\u7533\u8bf7\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;uses-permission android:name=\"android.permission.READ_EXTERNAL_STORAGE\" \/>\n    &lt;uses-permission android:name=\"android.permission.WRITE_EXTERNAL_STORAGE\" \/><\/code><\/pre>\n\n\n\n<p>\u5728 Activity \u9700\u8981\u4f7f\u7528\u76f8\u5173\u7684\u6743\u9650\u65f6\uff0c\u8c03\u7528 ActivityCompat.requestPermissions \u51fd\u6570\u53ef\u7533\u8bf7\u8be5\u6743\u9650\uff0c\u8fd9\u4f1a\u5f39\u51fa\u4e00\u4e2a\u63d0\u793a\u6846\u63d0\u793a\u7528\u6237\u662f\u5426\u8ba9\u7a0b\u5e8f\u62e5\u6709\u8fd9\u4e9b\u6743\u9650\uff1b\u7a0b\u5e8f\u53ef\u901a\u8fc7 Activity \u7684\u4e00\u4e2a\u56de\u8c03\u51fd\u6570 onRequestPermissionsResult \u786e\u8ba4\u6743\u9650\u662f\u5426\u901a\u8fc7\u7533\u8bf7\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u5173\u4e8e\u7a0b\u5e8f\u542f\u52a8\u65f6\u4e3b\u52a8\u5411\u7528\u6237\u7533\u8bf7\u5916\u7f6e\u50a8\u5b58\u8bfb\u5199\u6743\u9650\u7684\u4f8b\u5b50\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    final int REQUESTCODE_PERMISSION = 1;\n    private static final String[] permissions = {\n            Manifest.permission.READ_EXTERNAL_STORAGE,\n            Manifest.permission.WRITE_EXTERNAL_STORAGE\n    };\n\n    void applyPermisssion(){\n        for (String per : permissions) {\n            if (ContextCompat.checkSelfPermission(this,\n                    per)\n                    != PERMISSION_GRANTED) {\n                ActivityCompat.requestPermissions(this,\n                        permissions, REQUESTCODE_PERMISSION);\n            }\n        }\n    }\n\n    @Override\n    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {\n        super.onRequestPermissionsResult(requestCode, permissions, grantResults);\n        switch (requestCode) {\n            case REQUESTCODE_PERMISSION:\n                if (grantResults.length > 0 &amp;&amp; grantResults[0] == PERMISSION_DENIED) {\n                    new AlertDialog.Builder(this)\n                            .setTitle(\"\u9519\u8bef\")\n                            .setMessage(\"\u7533\u8bf7\u5fc5\u8981\u7684\u6743\u9650\u5931\u8d25\uff0c\u8bf7\u5728\u624b\u673a\u7684\u8bbe\u7f6e\u9875\u9762\u624b\u52a8\u5141\u8bb8 App \u7684\u76f8\u5173\u6743\u9650\u3002\")\n                            .setPositiveButton(\"\u786e\u5b9a\", null)\n                            .setOnDismissListener(new DialogInterface.OnDismissListener() {\n                        @Override\n                        public void onDismiss(DialogInterface dialogInterface) {\n                            System.exit(0);\n                        }\n                    }).show();\n                }\n                break;\n        }\n    }\n\n    @Override\n    protected void onCreate(Bundle savedInstanceState){\n        super.onCreate(savedInstanceState);\n        setContentView(R.layout.activity_main);\n        applyPermisssion();\n    }<\/code><\/pre>\n\n\n\n<p>\u5f53\u7136 App \u8fd8\u9700\u8981\u5728\u524d\u6587\u63d0\u5230\u7684\u5b89\u5353\u6e05\u5355\u6587\u4ef6\u91cc\u9996\u5148\u58f0\u660e\u8fd9\u4e24\u4e2a\u6743\u9650\u3002<\/p>\n\n\n\n<p>\u4e0a\u9762\u7684\u4f8b\u5b50\u4f1a\u5728\u4e3b\u7a0b\u5e8f\u542f\u52a8\u65f6\u5148\u8c03\u7528 ContextCompat.checkSelfPermission \u5224\u65ad\u7a0b\u5e8f\u662f\u5426\u5177\u6709\u8be5\u6743\u9650\uff0c\u5982\u679c\u65e0\u8be5\u6743\u9650\uff0c\u5219\u5f39\u51fa\u4e00\u4e2a\u7a97\u53e3\u8ba9\u7528\u6237\u5141\u8bb8\u7a0b\u5e8f\u62e5\u6709\u8fd9\u4e9b\u6743\u9650\u3002\u5728\u56de\u8c03\u51fd\u6570\u4e2d\uff0c\u7a0b\u5e8f\u4f1a\u5f97\u5230\u7528\u6237\u5173\u4e8e\u8fd9\u4e9b\u6743\u9650\u7684\u53cd\u9988\uff0c\u5982\u679c\u7528\u6237\u4e0d\u5141\u8bb8 App \u5177\u6709\u76f8\u5173\u7684\u6743\u9650\uff0c\u7a0b\u5e8f\u5c06\u4f1a\u81ea\u52a8\u5173\u95ed\u3002<\/p>\n\n\n\n<p>\u7ecf\u8fc7\u4fee\u6539\uff0c\u9879\u76ee\u7684\u8bfb\u5199\u6743\u9650\u7684\u95ee\u9898\u5f97\u5230\u89e3\u51b3\u3002\u4f46\u4f9d\u7136\u65e0\u6cd5\u5b9e\u73b0\u5f55\u97f3\u529f\u80fd\uff0c\u4ecd\u662f\u95ea\u9000\u3002<\/p>\n\n\n\n<p>\u7ecf\u8fc7\u8c03\u8bd5\u53d1\u73b0\uff0c\u8fd9\u4e00\u6b21\u662f Access Denied \u7684 IOException\uff0c\u5373\u62d2\u7edd\u8bbf\u95ee\u3002<\/p>\n\n\n\n<p>\u67e5\u9605\u5b89\u5353\u5f00\u53d1\u8005\u6587\u6863\uff0c\u5b98\u65b9\u7ed9\u51fa\u7684\u4fdd\u5b58\u6587\u4ef6\u81f3\u5916\u7f6e\u50a8\u5b58\u7684\u89e3\u51b3\u65b9\u6848\u51fa\u4e4e\u6211\u4eec\u7684\u9884\u6599\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" loading=\"lazy\" width=\"1586\" height=\"562\" src=\"https:\/\/xbtzone.com\/blog\/wp-content\/uploads\/2019\/12\/android_save_to_external_storage.png\" alt=\"\" class=\"wp-image-1537\"\/><\/figure><\/div>\n\n\n\n<p>\u4f3c\u4e4e\u7f51\u4e0a\u90a3\u4e9b\u5173\u4e8e\u5199\u5165\u6587\u4ef6\u5230 SD \u5361\u7684\u4f8b\u5b50\u5df2\u7ecf\u5168\u90e8\u505a\u4e86\u5e9f\uff0c\u6bd5\u7adf\u4f8b\u5b50\u662f\u5177\u6709\u65f6\u6548\u6027\u7684\uff0c\u4ed6\u4eec\u7684\u4f8b\u5b50\u5927\u591a\u662f\u9488\u5bf9 Android 5 \u4ee5\u524d\u505a\u7684\u5f00\u53d1\uff1bAndorid 9 \u4e4b\u540e\u5bf9\u4e8e\u4fdd\u5b58\u6587\u4ef6\u81f3\u5916\u7f6e\u50a8\u5b58\u7684\u7a0b\u5e8f\u903b\u8f91\u505a\u4e86\u5f88\u5927\u7684\u6539\u52a8\u3002<\/p>\n\n\n\n<p>\u4e0e\u4ee5\u5f80\u901a\u8fc7 IO \u7c7b\u76f4\u63a5\u521b\u5efa OutputStream \u4e0d\u540c\uff0c\u73b0\u5728 Android \u8981\u6c42\u4fdd\u5b58\u6587\u4ef6\u5230\u516c\u5f00\u76ee\u5f55\uff0c\u4f7f\u7528 MediaStore API \u6216\u4f7f\u7528 ACTION_CREATE_DOCUMENT intent \u7684\u50a8\u5b58\u8bbf\u95ee\u6846\u67b6\u3002<\/p>\n\n\n\n<p>\u524d\u8005\u4f1a\u5c06\u6587\u4ef6\u4fdd\u5b58\u5230\u5916\u7f6e\u50a8\u5b58\u7684\u5a92\u4f53\u6587\u4ef6\u4e13\u6709\u76ee\u5f55\u4e0b\uff0c\u5982 Music\u3001Video\u548c Photo \u76ee\u5f55\uff0c\u8fd9\u5c31\u5bf9\u8981\u4fdd\u5b58\u7684\u6587\u4ef6\u7c7b\u578b\u6709\u4e00\u5b9a\u8981\u6c42\uff0c\u800c\u4e14\u6700\u7ec8\u8f93\u51fa\u5230\u7684\u76ee\u5f55\u4ea6\u5177\u6709\u5c40\u9650\u6027\uff0c\u56e0\u6b64\u5e76\u4e0d\u91c7\u7528\u3002<\/p>\n\n\n\n<p>\u540e\u8005\u5219\u662f\u7c7b\u4f3c Windows \u4e0b\u7684 FileDialog\uff0c\u5373\u5f39\u51fa\u4e00\u4e2a\u6587\u4ef6\u6d4f\u89c8\u5668\u5bf9\u8bdd\u6846\uff0c\u7a0b\u5e8f\u53ef\u8bbe\u7f6e\u6587\u4ef6\u7684 MIME-Type \u548c\u6587\u4ef6\u540d\uff0c\u4f46\u662f\u5177\u4f53\u4fdd\u5b58\u7684\u76ee\u5f55\u5f97\u4ea4\u7531\u7528\u6237\u81ea\u884c\u9009\u62e9\uff0c\u5f85\u9009\u62e9\u5b8c\u6bd5\u540e\uff0c\u4f1a\u89e6\u53d1\u6d3b\u52a8\u91cc\u7684 onActivityResult \u56de\u8c03\u51fd\u6570\uff0c\u7a0b\u5e8f\u53ef\u5728\u56de\u8c03\u51fd\u6570\u5185\u5f97\u5230\u6587\u4ef6\u7684 OutputStream\uff0c\u8fdb\u800c\u8f93\u51fa\u6587\u4ef6\u81f3\u5916\u7f6e\u50a8\u5b58\u3002<\/p>\n\n\n\n<p>\u6700\u7ec8\u6211\u4eec\u91c7\u7528\u4e86\u540e\u8005\u7ed9\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u5907\u4efd\u8bed\u97f3\u6587\u4ef6\u5230\u5916\u7f6e\u50a8\u5b58\u7684\u4f8b\u5b50\uff08\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u4ef6\u62f7\u8d1d\uff09\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    private static final int WRITE_REQUEST_CODE = 0x1;    \n    void hitSaveFile() {\n        pauseAudio();\n        Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);\n\n        intent.addCategory(Intent.CATEGORY_OPENABLE);\n\n        intent.setType(\"audio\/x-wav\");\n        intent.putExtra(Intent.EXTRA_TITLE,\n                currentAudioFilePathWav.substring(currentAudioFilePathWav.lastIndexOf(\"\/\") + 1));\n        startActivityForResult(intent, WRITE_REQUEST_CODE);\n    }\n\n    @Override\n    protected void onActivityResult(int requestCode, int resultCode, Intent data) {\n        super.onActivityResult(requestCode,resultCode,data);\n        if (requestCode == WRITE_REQUEST_CODE &amp;&amp; resultCode == Activity.RESULT_OK) {\n            Uri uri = null;\n            if (data != null) {\n                uri = data.getData();\n                try {\n                    File f = new File(currentAudioFilePathWav);\n                    InputStream in = new FileInputStream(f);\n                    OutputStream out = getContentResolver().openOutputStream(uri);\n                    byte[] buf = new byte[1024];\n                    int bytesRead;\n                    while ((bytesRead = in.read(buf)) > 0) {\n                        out.write(buf, 0, bytesRead);\n                    }\n                    out.close();\n                    in.close();\n                    Toast.makeText(this, \"\u5907\u4efd\u8bed\u97f3\u6587\u4ef6\u6210\u529f\uff01\", Toast.LENGTH_SHORT).show();\n                } catch (IOException e) {\n                    e.printStackTrace();\n                }\n            }\n        }\n    }<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e2a\u5b66\u671f\u9700\u8981\u5b8c\u6210\u4e00\u9879\u8bfe\u7a0b\u8bbe\u8ba1\uff0c\u6211\u5e26\u7684\u5c0f\u7ec4\u9009\u4e86\u4e00\u4e2a\u524d\u7aef\u9879\u76ee\u7684\u8bfe\u9898\u3002 \u4e0d\u8fc7\u8bf4\u5b9e\u8bdd\uff0c\u6ca1\u591a\u5c11\u4eba\u613f\u610f\u5199\u524d\u7aef\u7684\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/posts\/1536"}],"collection":[{"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/comments?post=1536"}],"version-history":[{"count":0,"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/posts\/1536\/revisions"}],"wp:attachment":[{"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/media?parent=1536"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/categories?post=1536"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xbtzone.com\/blog\/wp-json\/wp\/v2\/tags?post=1536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}