如何在Android 7中实施YouTube Direct Lite _Youtube

实践是知识的母亲，知识是生活的明灯。这篇文章主要讲述如何在Android 7中实施YouTube Direct Lite相关的知识，希望能为你提供帮助。
我在GitHub（https://github.com/youtube/yt-direct-lite-android）上发现了YouTube Direct Lite（android / java），作为如何允许用户将视频上传到YouTube播放列表的一个很好的示例。我已经在Nexus 4和Android 4.2.2上的Android 5.1.1上成功调试并发布了apk模式。在Galaxy Tab 7上。然而，在LG4上安装到Android 7.0时，我收到“连接播放服务失败”消息。 “不幸的是，I-Witness（重命名的应用程序）Uploader已停止”是应用程序崩溃之前的消息，当我选择登录帐户时。
【如何在Android 7中实施YouTube Direct Lite】在最初从git导入代码时，Android Studio 3.01显示了一些过时的库，我更新了这些库，并找到了解决由一个过时的库引起的httprequest / httpclient错误的方法。最大的问题围绕'com.google.android.gms：play-services-auth'和'com.google.android.gms：play-services-plus'，在原始示例中为7.8。
Android Studio建议更新到当前的11.8，但当我在代码中出现了许多“红色下划线”，因此我成功使用了'com.google.android.gms：play-services-plus：9.0.0'和com.google.android.gms：发挥服务-auth的：9.0.0。
具体来说，11.8导致与以下与firebase相关的外部库发生冲突，我不明白，因为firebase未在项目中实现：

google.firebase:firebase-analytics-9.00 google.firebase:firebase-analytics-impl-9.00 google.firebase:firebase-common-9.00 google.firebase:firebase-core-9.00 google.firebase:firebase-iid-9.00

这个问题似乎围绕着身份验证，但针对特定Android版本的调试位置？
这是我的应用级build.gradle，如果有人可能熟悉YouTube direct Lite并且可以提出建议来解决Android 7上的安装问题：

apply plugin: 'com.android.application'android { compileSdkVersion 27 defaultConfig { applicationId "com.abengnews.iwitness" minSdkVersion 16 targetSdkVersion 27 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } lintOptions { abortOnError false } }dependencies { implementation fileTree(include: ['*.jar'], dir: 'libs') //compile fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.google.android.gms:play-services-plus:9.0.0' implementation 'com.google.android.gms:play-services-auth:9.0.0' //implementation 'com.google.android.gms:play-services-identity:9.0.0' implementation 'com.android.support:appcompat-v7:27.0.2' implementation 'com.android.support.constraint:constraint-layout:1.0.2' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.1' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' implementation 'com.android.support:support-v13:27.0.2' implementation 'com.google.apis:google-api-services-youtube:v3-rev120-1.19.0' implementation 'com.google.http-client:google-http-client-android:+' implementation 'com.google.api-client:google-api-client:1.23.0' implementation 'com.google.api-client:google-api-client-android:1.23.0' implementation 'com.google.api-client:google-api-client-gson:+' implementation 'com.google.code.gson:gson:2.2.4' implementation 'com.mcxiaoke.volley:library:1.0.18' implementation files('libs/YouTubeAndroidPlayerApi.jar') } configurations { all { exclude module: 'httpclient' resolutionStrategy.force 'com.google.code.findbugs:jsr305:1.3.9' } } apply plugin: 'com.google.gms.google-services'

谢谢你的帮助。
附：事实证明该问题与AndroidManifest.xml中的

<
uses-permission android:name="android.permission.GET_ACCOUNTS" />

有关，该问题已在Android 6.1中更改。我在手机上摆弄应用程序的设置时偶然发现了它。 “联系人”是“权限”下列出的唯一选项，当我启用对联系人的访问权限时，该应用程序按预期运行。
现在我需要了解如何以编程方式实现权限
答案有关未能连接到Play服务以及随后崩溃的消息与AndroidManifest.xml中的

<
uses-permission android:name="android.permission.GET_ACCOUNTS" />

需要自Android 6.1以来明确授予用户权限这一事实有关。
在Android的示例运行时权限中找到以下代码，发现here已经解决了问题（虽然应用程序在安装后第一次运行时崩溃但后来没有崩溃）。
加载主活动内容视图时：

// Verify that all required contact permissions have been granted. if (android.os.Build.VERSION.SDK_INT > = android.os.Build.VERSION_CODES.M); if (ActivityCompat.checkSelfPermission(this, Manifest.permission.GET_ACCOUNTS) != PackageManager.PERMISSION_GRANTED) { // Contacts permissions have not been granted. Log.i(TAG, "Contact permissions has NOT been granted. Requesting permissions."); requestContactsPermissions(); }

然后请求和设置权限：

// permissions /** * Id to identify a contacts permission request. */ private static final int REQUEST_CONTACTS = 1; /** * Permissions required to read and write contacts. Used by the . */ private static String[] PERMISSIONS_CONTACT = {Manifest.permission.GET_ACCOUNTS, }; /** * Requests the Contacts permissions. * If the permission has been denied previously, a SnackBar will prompt the user to grant the * permission, otherwise it is requested directly. */ private void requestContactsPermissions() { // BEGIN_INCLUDE(contacts_permission_request) if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.GET_ACCOUNTS) ) {// Provide an additional rationale to the user if the permission was not granted // and the user would benefit from additional context for the use of the permission. // For example, if the request has been denied previously. Log.i(TAG, "Displaying contacts permission rationale to provide additional context."); // Display a SnackBar with an explanation and a button to trigger the request. Snackbar.make(mLayout, R.string.permission_contacts_rationale, Snackbar.LENGTH_INDEFINITE) .setAction(R.string.ok, new View.OnClickListener() { @Override public void onClick(View view) { ActivityCompat .requestPermissions(MainActivity.this, PERMISSIONS_CONTACT, REQUEST_CONTACTS); } }) .show(); } else { // Contact permissions have not been granted yet. Request them directly. ActivityCompat.requestPermissions(this, PERMISSIONS_CONTACT, REQUEST_CONTACTS); } // END_INCLUDE(contacts_permission_request) } /** * Callback received when a permissions request has been completed. */ @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {if (requestCode == REQUEST_CONTACTS) { Log.i(TAG, "Received response for contact permissions request."); // We have requested multiple permissions for contacts, so all of them need to be // checked. if (PermissionUtil.verifyPermissions(grantResults)) { // All required permissions have been granted, display contacts fragment. Snackbar.make(mLayout, R.string.permision_available_contacts, Snackbar.LENGTH_SHORT) .show(); } else { Log.i(TAG, "Contacts permissions were NOT granted."); Snackbar.make(mLayout, R.string.permissions_not_granted, Snackbar.LENGTH_SHORT) .show(); }} else { super.onRequestPermissionsResult(requestCode, permissions, grantResults); } }

我确定有一些可以清理的冗余代码，因为我没有任何按钮可以点击以请求权限。