1.首先先來個框架地址：https://github.com/hongyangAndroid/MPermissions/

2.真的很好用：

1.

• in Activity:

public class MainActivity extends AppCompatActivity
{

    private Button mBtnSdcard;
    private static final int REQUECT_CODE_SDCARD = 2;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super
 
.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mBtnSdcard = (Button) findViewById(R.id.id_btn_sdcard);
        mBtnSdcard.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                MPermissions
 
.requestPermissions(MainActivity.this, REQUECT_CODE_SDCARD, Manifest.permission.WRITE_EXTERNAL_STORAGE);
            }
        });
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
    {
        MPermissions.onRequestPermissionsResult(this
 
, requestCode, permissions, grantResults);
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }


    @PermissionGrant(REQUECT_CODE_SDCARD)
    public void requestSdcardSuccess()
    {
        Toast.makeText(this, "GRANT ACCESS SDCARD!", Toast.LENGTH_SHORT).show();
    }

    @PermissionDenied(REQUECT_CODE_SDCARD)
    public void requestSdcardFailed()
    {
        Toast.makeText(this, "DENY ACCESS SDCARD!", Toast.LENGTH_SHORT).show();
    }
}

• in Fragment:

public class TestFragment extends Fragment
{
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        return inflater.inflate(R.layout.fragment_test, container, false);
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState)
    {
        view.findViewById(R.id.id_btn_contact).setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                MPermissions.requestPermissions(TestFragment.this, 4, Manifest.permission.WRITE_CONTACTS);
            }
        });

    }

    @PermissionGrant(4)
    public void requestContactSuccess()
    {
        Toast.makeText(getActivity(), "GRANT ACCESS CONTACTS!", Toast.LENGTH_SHORT).show();
    }

    @PermissionDenied(4)
    public void requestContactFailed()
    {
        Toast.makeText(getActivity(), "DENY ACCESS CONTACTS!", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults)
    {
        MPermissions.onRequestPermissionsResult(this, requestCode, permissions, grantResults);
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }
}

混淆

-dontwarn com.zhy.m.**
-keep class com.zhy.m.** {*;}
-keep interface com.zhy.m.** { *; }
-keep class **$$PermissionProxy { *; }

但是會不會和 xutils3.0衝突，我還沒一起用過。