Android6.0的权限管理（相机权限的举例）

假设首页需要使用权限, 在页面显示前, 即onResume时, 检测权限,如果缺少, 则进入权限获取页面; 接收返回值, 拒绝权限时, 直接关闭.

   if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
            != PackageManager.PERMISSION_GRANTED) {
        //申请WRITE_EXTERNAL_STORAGE权限
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA},
                1);}

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

private void doNext(int requestCode, int[] grantResults) {
    if (requestCode == 1) {
        if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // Permission Granted

        } else {
            // Permission Denied
            //  displayFrameworkBugMessageAndExit();
            Toast.makeText(this, "请在应用管理中打开“相机”访问权限！", Toast.LENGTH_LONG).show();
            finish();
        }
    }
}