androidQ 访问SD卡权限问题

一、在AndroidManifest.xml中加入android:requestLegacyExternalStorage="true" ，如下：

二，动态申请权限

private void initPermission(Activity activity){if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {if (ContextCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED||ContextCompat.checkSelfPermission(activity, Manifest.permission.READ_SMS) != PackageManager.PERMISSION_GRANTED) {// 检查权限状态if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {//  用户彻底拒绝授予权限} else {//  用户未彻底拒绝授予权限ActivityCompat.requestPermissions(activity, PermissionUtil.PERMISSIONS, PermissionUtil.REQUEST);}}else{Toast.makeText(activity,"已经授权 ： "+Manifest.permission.WRITE_EXTERNAL_STORAGE,Toast.LENGTH_SHORT).show();}}}@Overridepublic void  onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {super.onRequestPermissionsResult(requestCode, permissions, grantResults);if (requestCode == 1) {for (int i=0;i

public class PermissionUtil {public static final int REQUEST = 1;public static String[] PERMISSIONS = {Manifest.permission.READ_EXTERNAL_STORAGE,Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_SMS};
}

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