Question

我是Android 6.0编码的新手请为以下代码提供解决方案：

当我提供READ_EXTERNAL_STORAGE和WRITE_EXTERNAL_STORAGE之类的运行时权限时，它会显示像

这样的例外情况

java.lang.SecurityException：权限拒绝：启动Intent {act = android.media.action.IMAGE_CAPTURE flg = 0x3 cmp = com.motorola.camera / .Camera clip = {text / uri-list U：文件：///storage/emulated/0/Pictures/MyAppNew%20File%20Upload/IMG_20160401_110234.jpg}（有附加内容）}来自ProcessRecord {ed96564 26955：com.social.nocializer / u0a259}（pid = 26955，uid = 10259 ）具有撤销权限android.permission.CAMERA

MediaStore.ACTION_IMAGE_CAPTURE和MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE运行时权限无效...

注意：READ_EXTERNAL_STORAGE适用于打开图库时

Answer 1

您必须为此管理运行时权限，因为您在AndroidManifest中定义的任何权限都不会自动授予。因此，与以下方法一样，您可以检查您的许可是否获得批准

if (checkSelfPermission(Manifest.permission.CAMERA)
        != PackageManager.PERMISSION_GRANTED) {

    requestPermissions(new String[]{Manifest.permission.CAMERA},
            MY_REQUEST_CODE);
}

此处，MY_REQUEST_CODE是您可以定义的静态常量，它将再次用于requestPermission对话框回调。现在，您将需要回调对话框结果：

@Override
public void onRequestPermissionResult(int requestCode, String[] permissions, int[] grantResults) {
    if (requestCode == MY_REQUEST__CODE) {
        if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // Now user should be able to use camera
        }
        else {
            // Your app will not have this permission. Turn off all functions 
            // that require this permission or it will force close like your 
            // original question
        }
    }
}

Answer 2

@Ronak Solution为我工作但有一些以下更改，因为我们只需要检查那些高于Android M的设备。

 if( ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                        requestPermissions(new String[]{android.Manifest.permission.CAMERA},
                                5);
                    }
                }

使用crl + o复制覆盖以下方法，粘贴可能会导致错误：D

 @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 5) {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                // Now user should be able to use camera
            }
            else {
                // Your app will not have this permission. Turn off all functions
                // that require this permission or it will force close like your
                // original question
            }
    }

如何在Android 6.0 Marshmallow中访问相机？

2 个答案: