Question

我知道，之前曾多次询问过这个问题，但我仍然没有让这个问题起作用，因为我不明白究竟要做什么，或者给定的答案对我不起作用.. 无论如何，我想在日历中添加一个事件...因此，我将permission.WRITE_CALENDAR添加到我的清单中，如下所示：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.user.neuertestdiesenbenutzen">
    <uses-permission android:name="android.permission.WRITE_CALENDAR" />
    <uses-permission android:name="android.permission.READ_CALENDAR" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

我的MainActivity看起来像这样：

package com.example.user.neuertestdiesenbenutzen;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        CalManager c = new CalManager(getApplicationContext());
        int permissionCheck = 
            ContextCompat.checkSelfPermission(MainActivity.this,
            Manifest.permission.WRITE_CALENDAR);
        if(permissionCheck== PackageManager.PERMISSION_GRANTED) {
            Log.d("mychecks", "Permission granted");
            c.addEvToCal();
        }
        else{
            Log.d("mychecks", "Permission denied");
        }
    }
}

但是，它无法识别权限，我得到输出：权限被拒绝。

任何人都能以可理解的方式描述在这种情况下该怎么做吗？

感谢您的帮助！

Answer 1

您需要获得高于6.0版本的运行时权限

尝试此操作以获得运行时权限：

public static final String[] NECESSARY_PERMISSIONS = new String[] {

         Manifest.permission.WRITE_CALENDAR,

    };

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (ContextCompat.checkSelfPermission(PasswordSetupActivity.this,
                    Manifest.permission.WRITE_CALENDAR) != PackageManager.PERMISSION_GRANTED) {

                new Handler().postDelayed(new Runnable() {

                    @Override
                    public void run() {
                        ActivityCompat.requestPermissions(
                                (Activity) PasswordSetupActivity.this,
                                NECESSARY_PERMISSIONS, 123);

                    }
                }, 1400);
            }

        }

如果有任何问题可以随意问我

Answer 2

确保您的项目 targetSdkVersion为23或更高

试试这个

请求这样的许可

 ActivityCompat.requestPermissions(Activity.this,
            new String[]{Manifest.permission.WRITE_CALENDAR},
            1);// pass here permission request code to handle permission result

处理权限导致 onRequestPermissionsResult 知道用户是否允许权限

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case 1: {
                // If request is cancelled, the result arrays are empty.
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    c.addEvToCal();
                    // permission was granted, yay! Do the
                    // contacts-related task you need to do.

                } else {

                    // permission denied, boo! Disable the
                    // functionality that depends on this permission.
                }
                return;
            }

        }
    }

permission.WRITE_CALENDAR：尽管在manifest.xml

2 个答案: