Flutter Android 13调用相机 Unhandled

问题一：

Android 13调用相机 黑屏，报错如下：

image.png

原来是用的拍照插件wechat_camera_picker比较老，更新一下当前的Flutter版本又不支持了，只能改插件或者换插件了。

后来改了一下这里：

buildscript {
    ext.kotlin_version = '1.8.0'
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:7.1.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

把ext.kotlin_version
从

• ext.kotlin_version = '1.6.10'
  改成

• ext.kotlin_version = '1.8.0'
  就没问题了。

问题二：

[core] "Error returned from daemon: Error Domain=com.apple.accounts Code=7 "(null)"" *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '*** -[AVAssetReader startReading] cannot be called again after reading has already started'

拍摄视频保存直接崩溃，原因如上：。

startReading

flutter video_compress/video_compress-Swift.h' file not found'

解决链接：
https://github.com/jonataslaw/VideoCompress/issues/35

profile文件中加上这个：

use_frameworks!

问题三：

VideoCompress第一次压缩视频可以，第二次崩溃，报错

-[AVAssetWriterInputPixelBufferAdaptor appendPixelBuffer:withPresentationTime:] A pixel buffer cannot be appended when readyForMoreMediaData is NO

插件中这个地方代码的问题：

CVPixelBufferRef nextBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
      CMTime nextSampleTime = CMTimeSubtract(_lastVideoSampleTime, _videoTimeOffset);
      [_videoAdaptor appendPixelBuffer:nextBuffer withPresentationTime:nextSampleTime];

https://stackoverflow.com/questions/13730422/avassetwriterinputpixelbufferadaptor-appendpixelbuffer-exc-bad-access

改成这样：

CVPixelBufferRef nextBuffer = CMSampleBufferGetImageBuffer(sampleBuffer);
    CMTime nextSampleTime = CMTimeSubtract(_lastVideoSampleTime, _videoTimeOffset);
    if (nextBuffer != NULL) {
        [_videoAdaptor appendPixelBuffer:nextBuffer withPresentationTime:nextSampleTime];
    } else {
        NSLog(@"NULL PixelBuffer !");
    }

就可以了