标签：extern ade media new ted ref log androi 运行时权限
1.最近在SDK6.0开发项目组遇到一个这样的问题：requires Android.permission.READ_EXTERNAL_STORAGE, or grantUriPermission()
2.原因：从6.0(api 23)开始, android采用了Runtime permission request, 即在运行时请求权限，而不是在编译的时候，即使在manifest.xml里面添加了权限也要在运行时请求。
但不是所有的permission都要Runtime request，涉及到资源文件请求时就会用到Runtime request，比如获取位置信息, content provider获取media的情况。
3.解决方法：
a) 首先确认在manefist里面添加了READ_EXTERNAL_STORAGE权限。
b) 在代码中实现Runtime request:
1 @SuppressLint("NewApi") 2 private void requestReadExternalPermission() { 3 if (checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) 4 != PackageManager.PERMISSION_GRANTED) { 5 Log.d(TAG, "READ permission IS NOT granted..."); 6 7 if (shouldShowRequestPermissionRationale(Manifest.permission.READ_EXTERNAL_STORAGE)) { 8 9 Log.d(TAG, "11111111111111"); 10 } else { 11 // 0 是自己定义的请求coude 12 requestPermissions(new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 0); 13 Log.d(TAG, "222222222222"); 14 } 15 } else { 16 Log.d(TAG, "READ permission is granted..."); 17 } 18 }
1 c)处理请求： 2 3 @Override 4 public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) { 5 Log.d(TAG, "requestCode=" + requestCode + "; --->" + permissions.toString() 6 + "; grantResult=" + grantResults.toString()); 7 switch (requestCode) { 8 case 0: { 9 10 if (grantResults.length > 0 11 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 12 13 // permission was granted 14 // request successfully, handle you transactions 15 16 } else { 17 18 // permission denied 19 // request failed 20 } 21 22 return; 23 } 24 default: 25 break; 26 27 } 28 } 29
标签：extern ade media new ted ref log androi 运行时权限
原文地址：https://www.cnblogs.com/hello-studio/p/9640662.html
