我从https://github.com/youtube/yt-watchme创建了android应用程序。
当我尝试使用“CREATE LIVE EVENT”按钮创建事件时。它会抛出一些跟随错误。我认为这是由于相机许可问题而发生的。
ERROR：
09-17 11:43:53.582 32383-32383/com.google.android.apps.watchme E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.google.android.apps.watchme, PID: 32383
java.lang.NoSuchMethodError: com.google.android.apps.watchme.StreamerActivity.checkSelfPermission
at com.google.android.apps.watchme.StreamerActivity.startStreaming(StreamerActivity.java:174)
at com.google.android.apps.watchme.StreamerActivity.access$200(StreamerActivity.java:46)
at com.google.android.apps.watchme.StreamerActivity$1.onServiceConnected(StreamerActivity.java:63)
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1110)
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1127)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5097)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
任何人请建议。我该如何解决这个问题。
提前致谢
代码更新：
清单文件XML
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.android.apps.watchme">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!-- For authorization. -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<!-- For recording audio and video without going to lock. -->
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission."/>
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature
android:name="android.hardware.camera"
android:required="true"></uses-feature>
<uses-feature
android:name="android.hardware.camera.front"
android:required="true"></uses-feature>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name="com.google.android.apps.watchme.MainActivity"
android:configChanges="orientation|screenSize"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.google.android.apps.watchme.StreamerActivity"
android:label="@string/app_name"
android:screenOrientation="landscape"></activity>
<service android:name="com.google.android.apps.watchme.StreamerService" />
</application>
<uses-sdk
android:minSdkVersion="23"
android:targetSdkVersion="23"/>
</manifest>
流活动文件
/*
* Copyright (c) 2014 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.android.apps.watchme;
import android.Manifest;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.PackageManager;
import android.hardware.Camera;
import android.os.Bundle;
import android.os.IBinder;
import android.os.PowerManager;
import android.support.design.widget.Snackbar;
import android.support.v4.app.ActivityCompat;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ToggleButton;
import com.google.android.apps.watchme.util.Utils;
import com.google.android.apps.watchme.util.YouTubeApi;
import java.util.ArrayList;
import java.util.List;
/**
* @author Ibrahim Ulukaya <ulukaya@google.com>
* <p/>
* StreamerActivity class which previews the camera and streams via StreamerService.
*/
public class StreamerActivity extends Activity {
// CONSTANTS
// TODO: Stop hardcoding this and read values from the camera's supported sizes.
public static final int CAMERA_WIDTH = 640;
public static final int CAMERA_HEIGHT = 480;
private static final int REQUEST_CAMERA_MICROPHONE = 0;
// Member variables
private StreamerService streamerService;
private ServiceConnection streamerConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName className, IBinder service) {
Log.d(MainActivity.APP_NAME, "onServiceConnected");
streamerService = ((StreamerService.LocalBinder) service).getService();
restoreStateFromService();
startStreaming();
}
@Override
public void onServiceDisconnected(ComponentName className) {
Log.e(MainActivity.APP_NAME, "onServiceDisconnected");
// This should never happen, because our service runs in the same process.
streamerService = null;
}
};
private PowerManager.WakeLock wakeLock;
private Preview preview;
private String rtmpUrl;
private String broadcastId;
@Override
public void onCreate(Bundle savedInstanceState) {
Log.d(MainActivity.APP_NAME, "onCreate");
super.onCreate(savedInstanceState);
broadcastId = getIntent().getStringExtra(YouTubeApi.BROADCAST_ID_KEY);
//Log.v(MainActivity.APP_NAME, broadcastId);
rtmpUrl = getIntent().getStringExtra(YouTubeApi.RTMP_URL_KEY);
if (rtmpUrl == null) {
Log.w(MainActivity.APP_NAME, "No RTMP URL was passed in; bailing.");
finish();
}
Log.i(MainActivity.APP_NAME, String.format("Got RTMP URL '%s' from calling activity.", rtmpUrl));
setContentView(R.layout.streamer);
preview = (Preview) findViewById(R.id.surfaceViewPreview);
if (!bindService(new Intent(this, StreamerService.class), streamerConnection,
BIND_AUTO_CREATE | BIND_DEBUG_UNBIND)) {
Log.e(MainActivity.APP_NAME, "Failed to bind StreamerService!");
}
final ToggleButton toggleButton = (ToggleButton) findViewById(R.id.toggleBroadcasting);
toggleButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (toggleButton.isChecked()) {
streamerService.startStreaming(rtmpUrl);
} else {
streamerService.stopStreaming();
}
}
});
}
@Override
protected void onResume() {
Log.d(MainActivity.APP_NAME, "onResume");
super.onResume();
if (streamerService != null) {
restoreStateFromService();
}
}
@Override
protected void onPause() {
Log.d(MainActivity.APP_NAME, "onPause");
super.onPause();
if (preview != null) {
preview.setCamera(null);
}
if (streamerService != null) {
streamerService.releaseCamera();
}
}
@Override
protected void onDestroy() {
Log.d(MainActivity.APP_NAME, "onDestroy");
super.onDestroy();
if (streamerConnection != null) {
unbindService(streamerConnection);
}
stopStreaming();
if (streamerService != null) {
streamerService.releaseCamera();
}
}
private void restoreStateFromService() {
preview.setCamera(Utils.getCamera(Camera.CameraInfo.CAMERA_FACING_FRONT));
}
private void startStreaming() {
Log.d(MainActivity.APP_NAME, "startStreaming");
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, this.getClass().getName());
wakeLock.acquire();
if (!streamerService.isStreaming()) {
String cameraPermission = Manifest.permission.CAMERA;
String microphonePermission = Manifest.permission.RECORD_AUDIO;
int hasCamPermission = checkSelfPermission(cameraPermission);
int hasMicPermission = checkSelfPermission(microphonePermission);
List<String> permissions = new ArrayList<String>();
if (hasCamPermission != PackageManager.PERMISSION_GRANTED) {
permissions.add(cameraPermission);
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.CAMERA)) {
// Provide rationale in Snackbar to request permission
Snackbar.make(preview, R.string.permission_camera_rationale,
Snackbar.LENGTH_INDEFINITE).show();
} else {
// Explain in Snackbar to turn on permission in settings
Snackbar.make(preview, R.string.permission_camera_explain,
Snackbar.LENGTH_INDEFINITE).show();
}
}
if (hasMicPermission != PackageManager.PERMISSION_GRANTED) {
permissions.add(microphonePermission);
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.RECORD_AUDIO)) {
// Provide rationale in Snackbar to request permission
Snackbar.make(preview, R.string.permission_microphone_rationale,
Snackbar.LENGTH_INDEFINITE).show();
} else {
// Explain in Snackbar to turn on permission in settings
Snackbar.make(preview, R.string.permission_microphone_explain,
Snackbar.LENGTH_INDEFINITE).show();
}
}
if (!permissions.isEmpty()) {
String[] params = permissions.toArray(new String[permissions.size()]);
ActivityCompat.requestPermissions(this, params, REQUEST_CAMERA_MICROPHONE);
} else {
// We already have permission, so handle as normal
streamerService.startStreaming(rtmpUrl);
}
}
}
/**
* Callback received when a permissions request has been completed.
*/
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case REQUEST_CAMERA_MICROPHONE: {
Log.i(MainActivity.APP_NAME, "Received response for camera with mic permissions request.");
// We have requested multiple permissions for contacts, so all of them need to be
// checked.
if (Utils.verifyPermissions(grantResults)) {
// permissions were granted, yay! do the
// streamer task you need to do.
streamerService.startStreaming(rtmpUrl);
} else {
Log.i(MainActivity.APP_NAME, "Camera with mic permissions were NOT granted.");
Snackbar.make(preview, R.string.permissions_not_granted,
Snackbar.LENGTH_SHORT)
.show();
}
break;
}
// other 'switch' lines to check for other
// permissions this app might request
}
return;
}
private void stopStreaming() {
Log.d(MainActivity.APP_NAME, "stopStreaming");
if (wakeLock != null) {
wakeLock.release();
wakeLock = null;
}
if (streamerService.isStreaming()) {
streamerService.stopStreaming();
}
}
public void endEvent(View view) {
Intent data = new Intent();
data.putExtra(YouTubeApi.BROADCAST_ID_KEY, broadcastId);
if (getParent() == null) {
setResult(Activity.RESULT_OK, data);
} else {
getParent().setResult(Activity.RESULT_OK, data);
}
finish();
}
}
更新错误代码：
08:57:14.447 18829-18829/com.google.android.apps.watchme E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.google.android.apps.watchme, PID: 18829
java.lang.UnsatisfiedLinkError: Couldn't load ffmpeg from loader dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.google.android.apps.watchme-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.google.android.apps.watchme-1, /vendor/lib, /system/lib]]]: findLibrary returned null
at java.lang.Runtime.loadLibrary(Runtime.java:358)
at java.lang.System.loadLibrary(System.java:526)
at com.google.android.apps.watchme.Ffmpeg.<clinit>(Ffmpeg.java:26)
at com.google.android.apps.watchme.VideoStreamingConnection.open(VideoStreamingConnection.java:71)
at com.google.android.apps.watchme.StreamerService.startStreaming(StreamerService.java:80)
at com.google.android.apps.watchme.StreamerActivity.startStreaming(StreamerActivity.java:212)
at com.google.android.apps.watchme.StreamerActivity.access$200(StreamerActivity.java:47)
at com.google.android.apps.watchme.StreamerActivity$1.onServiceConnected(StreamerActivity.java:64)
at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1110)
at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1127)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5097)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分：1)
在调用发生的活动代码中，用一个支票包装它：
int hasCamPermission = checkSelfPermission(cameraPermission);
int hasMicPermission = checkSelfPermission(microphonePermission);
首先将以下方法添加到StreamerActivity：
private boolean shouldCheckForPermission() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
}
将这些行更改为：
int hasCamPermission = shouldCheckForPermission() ? checkSelfPermission(cameraPermission) : PackageManager.PERMISSION_GRANTED;
int hasMicPermission = shouldCheckForPermission() ? checkSelfPermission(microphonePermission) : PackageManager.PERMISSION_GRANTED;
为此，您需要使用SDK 23进行编译和定位，如上面的答案中所述。
答案 1 :(得分：0)
此方法仅适用于API版本＆gt; = 23，
targetSdkVersion 23
compileSdkVersion 23
在您的代码中，您需要在调用此方法之前检查当前的API版本。
public static boolean shouldCheckForPermission() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
}
如果此方法返回true，则可以调用方法＆＃34; checkSelfPermission＆＃34;。