Android6.0软件崩溃问题

概述

targetSdkVersion是23，在Android 6.0上运行就会遇到crash的问题，因为Android 6.0在原有的AndroidManifest.xml声明权限的基础上，增加了运行时的权限（无法在AndroidManifest.xml中声明），包括：
- 身体传感器
- 日历
- 摄像头
- 通讯录
- 地理位置
- 麦克风
- 电话
- 短信
- 存储空间

代码

• 判断与函数调用

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
                    String[] permissions = checkSelfPermissionArray(Login.this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION,
                            Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE
                    });
                    if(permissions.length > 0) {
                        ActivityCompat.requestPermissions(Login.this, permissions, 1);
                    }
                }

• 函数定义

@TargetApi(Build.VERSION_CODES.M)
private static boolean checkSelfPermissionWrapper(Object cxt, String permission) {
        if (cxt instanceof Activity) {
            Activity activity = (Activity) cxt;
            return ActivityCompat.checkSelfPermission(activity,
                    permission) == PackageManager.PERMISSION_GRANTED;
        } else if (cxt instanceof Fragment) {
            Fragment fragment = (Fragment) cxt;
            return fragment.getActivity().checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
        } else {
            throw new RuntimeException("cxt is net a activity or fragment");
        }
    }

//批量申请权限
private static String[] checkSelfPermissionArray(Object cxt, String[] permission) {
        ArrayList<String> permiList = new ArrayList<>();
        for (String p : permission) {
            if (!checkSelfPermissionWrapper(cxt, p)) {
                permiList.add(p);
            }
        }
        if (permiList.size() > 0) {
            return permiList.toArray(new String[permiList.size()]);
        }else {
            return new String[]{};
        }
    }

• 处理返回情况

@Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode){
            case 1:
                if(grantResults[0] == PackageManager.PERMISSION_GRANTED){
                    //...
                }
                break;
        }
    }