//动态申请读写sd卡权限
intresult = ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE);
if(result != PackageManager.PERMISSION_GRANTED) {
//申请权限
ActivityCompat.requestPermissions(this,newString[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},0);
}
申请权限结果回调:
@Override
public voidonRequestPermissionsResult(intrequestCode,@NonNullString[] permissions,@NonNullint[] grantResults) {
//super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch(requestCode) {
case0:
if(grantResults[0]==PackageManager.PERMISSION_DENIED) {
Toast.makeText(MainActivity.this,"权限被拒绝", Toast.LENGTH_SHORT).show();
}else{
//创建目录
DownloadManager.getInstance().createFileDir();
}
break;
}
}
