相机权限设置

app/src/main/java/com/electric/chargingpile/activity/MainMapActivity.java

import com.electric.chargingpile.util.Md5Util;
import com.electric.chargingpile.util.OkHttpUtil;
import com.electric.chargingpile.util.SharedPreferencesUtil;
import com.electric.chargingpile.util.SystemTypeUtil;
import com.electric.chargingpile.util.ToastUtil;
import com.electric.chargingpile.util.Util;
import com.electric.chargingpile.util.ZhanDBHelper;
import com.electric.chargingpile.view.AlertDialogCommon;
import com.electric.chargingpile.view.AlertDialogTwo;
import com.electric.chargingpile.view.AlertDialogUpdate;
import com.electric.chargingpile.view.SlideAdView;
        } else {
            iVpoint.setVisibility(View.GONE);
        }
        saveTask();
        if (MainApplication.haveActivity == false) {
            if (MainApplication.isLogin() && MainApplication.isAppStart == true) {
                userChargingCheck();
                }
                if (!MainApplication.isLogin()) {
                    startActivity(new Intent(getApplication(), LoginActivity.class));
                } else if (!cameraTask()) {
                    EasyPermissions.requestPermissions(
                            this,
                            "该功能需要开启摄像头权限，是否前往开启？",
                            RC_CAMERA_PERM,
                            Manifest.permission.CAMERA);
                } else {
                    Intent iintent = new Intent(getApplicationContext(), com.google.zxing.client.android.CaptureActivity.class);
                    iintent.putExtra("url", MainApplication.url);
                    iintent.putExtra("user_id", MainApplication.userId);
                    iintent.putExtra("user_password", MainApplication.userPassword);
                    iintent.putExtra("user_phone", ProfileManager.getInstance().getUsername(getApplicationContext()));
                    LogUtils.e(ProfileManager.getInstance().getUsername(getApplicationContext()));
                    iintent.putExtra("cha", MainMapActivity.cha);
                    iintent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                    startActivity(iintent);
                    overridePendingTransition(0, 0);
                    if (count == 1) {
                        MobclickAgent.onEvent(getApplicationContext(), "0104");
                        count = 2;
                    }
                    requestCameraPermission();
                }
                break;
    @Override
    public void onPermissionsDenied(int requestCode, List<String> perms) {
        for (String s : perms) {
            LogUtils.e(s);
        }
        if (EasyPermissions.somePermissionPermanentlyDenied(this, perms)) {
            new AppSettingsDialog.Builder(MainMapActivity.this).build().show();
            // TODO add by hyg20200525
//            new AppSettingsDialog.Builder(MainMapActivity.this,
//                    "该功能需要开启摄像头权限，是否前往开启？").build().show();
//        if (EasyPermissions.somePermissionPermanentlyDenied(this, perms)) {
//            new AppSettingsDialog.Builder(MainMapActivity.this).build().show();
//        }
        if (requestCode == RC_CAMERA_PERM) {
            new AlertDialogCommon(MainMapActivity.this).builder()
                    .setMsg("为保证您正常、安全的使用充电桩，需要获取您的相机权限，请允许。")
                    .setPositiveButton("去设置", new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            SystemTypeUtil.goToPermissionManager(MainMapActivity.this);
                        }
                    }).setNegativeButton("取消", new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    android.os.Process.killProcess(android.os.Process.myPid());
                }
            }).show();
        }
    }
    @Override
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
    }
    private boolean hasCameraPermission() {
        return EasyPermissions.hasPermissions(this, Manifest.permission.CAMERA);
    }
    private boolean isPermissionOK() {
        return EasyPermissions.hasPermissions(this,
                Manifest.permission.CAMERA,
        );
    }
    @AfterPermissionGranted(RC_SAVE_PERM)
    public boolean saveTask() {
        if (isPermissionOK()) {
            // Have permission, do the thing!
//            Toast.makeText(this, "TODO: Camera things", Toast.LENGTH_LONG).show();
            return true;
        } else {
            // Ask for one permission
//            EasyPermissions.requestPermissions(
//                    this,
//                    "该功能需要开启摄像头权限，是否前往开启？",
//                    RC_CAMERA_PERM,
//                    Manifest.permission.CAMERA);
            return false;
        }
    private boolean hasCameraPermission() {
        return EasyPermissions.hasPermissions(this, Manifest.permission.CAMERA);
    }
    @AfterPermissionGranted(RC_CAMERA_PERM)
    public boolean cameraTask() {
    public void requestCameraPermission() {
        if (hasCameraPermission()) {
            // Have permission, do the thing!
//            Toast.makeText(this, "TODO: Camera things", Toast.LENGTH_LONG).show();
            return true;
            Intent intent = new Intent(getApplicationContext(), com.google.zxing.client.android.CaptureActivity.class);
            intent.putExtra("url", MainApplication.url);
            intent.putExtra("user_id", MainApplication.userId);
            intent.putExtra("user_password", MainApplication.userPassword);
            intent.putExtra("user_phone", ProfileManager.getInstance().getUsername(getApplicationContext()));
            intent.putExtra("cha", MainMapActivity.cha);
            intent.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
            startActivity(intent);
            overridePendingTransition(0, 0);
            if (count == 1) {
                MobclickAgent.onEvent(getApplicationContext(), "0104");
                count = 2;
            }
        } else {
            // Ask for one permission
//            EasyPermissions.requestPermissions(
//                    this,
//                    "该功能需要开启摄像头权限，是否前往开启？",
//                    RC_CAMERA_PERM,
//                    Manifest.permission.CAMERA);
            return false;
            EasyPermissions.requestPermissions(
                    this,
                    "扫码充电需要开启摄像头权限，是否前往开启？",
                    RC_CAMERA_PERM,
                    Manifest.permission.CAMERA);
        }
    }

app/src/main/res/layout/activity_permission_agreement.xml

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="摄像头权限"
                        android:text="相机权限"
                        android:textColor="#444444"
                        android:textSize="16sp"
                        android:textStyle="bold" />