String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
ActivityCompat.requestPermissions(OkHttpTest.this, permissions, REQUEST_CODE_CONTACT);
if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
Log.i("asdfg", "没有权限!");
}
这几天在学习OkHttp,涉及到文件的上传下载,下载的时候通过上面代码申请权限,Log打印没有权限,搞不懂为什么,所以来请教一下各位大神。
ActivityCompat.requestPermissions(OkHttpTest.this, permissions, REQUEST_CODE_CONTACT);
if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
Log.i("asdfg", "没有权限!");
}
这几天在学习OkHttp,涉及到文件的上传下载,下载的时候通过上面代码申请权限,Log打印没有权限,搞不懂为什么,所以来请教一下各位大神。
!= PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(MainActivity.this,
new String[] {Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1);
}回调方法:
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
@NonNull int[] grantResults) {
switch (requestCode){
case 1:
if (grantResults.length > 0 && grantResults[0] != PackageManager.PERMISSION_GRANTED){
Toast.makeText(this, "拒绝权限将无法使用程序", Toast.LENGTH_SHORT).show();
finish();
}
break;
default:
break;
}
}同时记得在manife中添加权限:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
这样就可以了。