android 6.0 动态权限处理

最近在做项目的时候使用到了高德地图，出现了在android 6.0之后的版本里定位无效，看到了好久才发现原来是并未申请到权限。查看了一下谷歌官网的android 6.0的一些改动。第二条就是动态权限。

This release introduces a new permissions model, where users can now directly manage app permissions at runtime. This model gives users improved visibility and control over permissions, while streamlining the installation and auto-update processes for app developers. Users can grant or revoke permissions individually for installed apps.
On your apps that target Android 6.0 (API level 23) or higher, make sure to check for and request permissions at runtime. To determine if your app has been granted a permission, call the new checkSelfPermission() method. To request a permission, call the new requestPermissions() method. Even if your app is not targeting Android 6.0 (API level 23), you should test your app under the new permissions model.

主要的意思是在API23以后，像定位 、打开相机这种隐私权限需要在使用的过程中动态去申请，而不再是 直接从MainFest里去反射注册了。
废话少说，处理方法如下：

final public static int REQUEST_CODE_ASK_CALL_PHONE = 123;

 public void onCall(String mobile){
        this.mMobile = mobile;
        if (Build.VERSION.SDK_INT >= 23) {
            int checkCallPhonePermission = ContextCompat.checkSelfPermission(mContext,Manifest.permission.CALL_PHONE);
            if(checkCallPhonePermission != PackageManager.PERMISSION_GRANTED){
                ActivityCompat.requestPermissions(mContext,new String[]{Manifest.permission.CALL_PHONE},REQUEST_CODE_ASK_CALL_PHONE);
                return;
            }else{
                //上面已经写好的拨号方法
                callDirectly(mobile);
            }
        } else {
            //上面已经写好的拨号方法
            callDirectly(mobile);
        }
    }

对权限申请结果回调的处理方法为：

 @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case REQUEST_CODE_ASK_CALL_PHONE:
                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    // Permission Granted
                    callDirectly(mobile);
                } else {
                    // Permission Denied
                    Toast.makeText(MainActivity.this, "CALL_PHONE Denied", Toast.LENGTH_SHORT)
                            .show();
                }
                break;
            default:
                super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }