Android 6.0 最简单的权限获取方法 RxPermition EasyPermition

Android 6.0 要单独的获取权限 
这里提供两种很简单的方法

• EasyPermition
• RxPermition

EasyPermition

https://github.com/googlesamples/easypermissions

dependencies {
    //6.0 permition
    compile 'pub.devrel:easypermissions:0.1.7'
}

在启动的Activity添加如下代码

public class LoginActivity extends Activity implements EasyPermissions.PermissionCallbacks {
    private static final int RC_CAMERA_PERM = 123;
    private static final int RC_LOCATION_CONTACTS_PERM = 124;

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

    private void requestPermissions() {
    //要获取的权限
        String[] perms = {Manifest.permission.INTERNET, Manifest.permission.WRITE_EXTERNAL_STORAGE};
        if (EasyPermissions.hasPermissions(this, perms)) {
            // Have permissions, do the thing!
            Toast.makeText(this, "TODO: Location and Contacts things", Toast.LENGTH_LONG).show();
        } else {
            // Ask for both permissions
            EasyPermissions.requestPermissions(this, getString(R.string.rationale_location_contacts),
                    RC_LOCATION_CONTACTS_PERM, perms);
        }
    }
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
    }

    @Override
    public void onPermissionsGranted(int requestCode, List<String> perms) {
        Log.d(TAG, "onPermissionsGranted:" + requestCode + ":" + perms.size());
    }

    @Override
    public void onPermissionsDenied(int requestCode, List<String> perms) {
        Log.d(TAG, "onPermissionsDenied:" + requestCode + ":" + perms.size());
        EasyPermissions.checkDeniedPermissionsNeverAskAgain(this,
                getString(R.string.rationale_ask_again),
                R.string.setting, R.string.cancel, perms);
    }
}

RxPermition

https://github.com/tbruyelle/RxPermissions

dependencies {
    compile 'com.tbruyelle.rxpermissions:rxpermissions:0.7.0@aar'
}

同样在启动的Activity

public class LoginActivity extends Activity {

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

        Observable<Boolean> request = RxPermissions.getInstance(Global.getContext())
                .request(
                        Manifest.permission.WRITE_EXTERNAL_STORAGE//文件读写
/*                        Manifest.permission.READ_CONTACTS,//联系人
                        Manifest.permission.READ_PHONE_STATE,
                        Manifest.permission.ACCESS_FINE_LOCATION*/
                );
        request.subscribe(new Action1<Boolean>() {
            @Override
            public void call(Boolean granted) {
                if (granted) {
                    startActivity(new Intent(LoginActivity.this, MainActivity.class));
                }
            }
        });
    }
}

针对RxPermition、写了个工具类 大家可以参考如下

public class PermissionsUtils {

    public static Observable<Boolean> getFileAndContactsAndLocationGrant() {
        Observable<Boolean> request = RxPermissions.getInstance(Global.getContext())
                .request(
                        Manifest.permission.WRITE_EXTERNAL_STORAGE,//文件读写
                        Manifest.permission.READ_CONTACTS,//联系人
                        Manifest.permission.READ_PHONE_STATE,
                        Manifest.permission.ACCESS_FINE_LOCATION
                );
        return request;
    }

    public static Observable<Boolean> getCameraAndAudioGrant() {
        Observable<Boolean> request = RxPermissions.getInstance(Global.getContext())
                .request(
                        Manifest.permission.CAMERA,//摄像头
                        Manifest.permission.RECORD_AUDIO//麦克风
                );
        return request;
    }
    /**
     * 引导到设置界面
     * @param activity
     * @param isFinish
     */
    @MainThread
    public static void showPermissionDeniedDialog(final Activity activity, final boolean isFinish) {
        DialogDeleteFriend dialog = new DialogDeleteFriend(activity, R.style.MyDialogBg);
        dialog.show();
        dialog.setIBtnListener(new IBtnClickListener() {
            @Override
            public void btnOk() {
                Intent intent =  new Intent(Settings.ACTION_MANAGE_APPLICATIONS_SETTINGS);
                activity.startActivity(intent);
                if (isFinish) activity.finish();
            }

            @Override
            public void btnCancle() {
                if (isFinish) activity.finish();
            }
        });
        dialog.updateType(DialogDeleteFriend.TYPE_TO_GRANTED);
    }
}

用法如下

/**
     * 获取授权后加载登录信息，并进入登录界面 如果没获取到权限则引导到设置页面
     */
    private void getGrantedAndInitLoginInfo() {
        rx.Observable<Boolean> grantObservable = PermissionsUtils.getFileAndContactsAndLocationGrant();
        grantObservable.subscribe(new Action1<Boolean>() {
            @Override
            public void call(Boolean granted) {
                if (granted) {
                   //do somthing 6.0以后需要权限
                } else {
                    PermissionsUtils.showPermissionDeniedDialog(SplashActivity.this, true);
                }
            }
        });
    }