小编Abh*_*war的帖子

我正在尝试构建项目,但这是我得到的错误消息.

    Error:(32, 13) Failed to resolve: com.firebase:firebase-jobdispatcher:0.5.0
    Show in File
    Show in Project Structure dialog

    Error:Failed to resolve: com.android.databinding:compiler:2.2.3
    Open File
    Show in Project Structure dialog

这是app模块的构建文件: -

apply plugin: 'com.android.application'

android {
compileSdkVersion 24
buildToolsVersion '24.0.0'

defaultConfig {
    applicationId "com.example.android.sunshine"
    minSdkVersion 10
    targetSdkVersion 24
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
    }
}

dataBinding.enabled = true
}

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:24.2.1'

compile 'com.android.support:recyclerview-v7:24.2.1'
compile 'com.android.support:preference-v7:24.2.1'

compile 'com.android.support.constraint:constraint-layout:1.0.0-beta3'

compile …

我正试图在HttpURLConnection课堂的帮助下打开一个连接.

我已经尝试过这段代码来处理一个URL,但在看到Logs时,我发现它无法获取重定向的URL.在示例代码中,您将看到要获取URL,我正在使用while循环,因此它记录了相同的URL.我迫切希望找到更好的解决问题的方法.我希望问题很清楚.

这是我正在使用的示例代码: -

 Log.d(TAG,"URL received : --- >"+downloadURL);
            URL url=new URL(downloadURL);
            HttpURLConnection httpURLConnection=(HttpURLConnection) url.openConnection();
            httpURLConnection.setDoInput(true);
            httpURLConnection.setInstanceFollowRedirects(true);
            httpURLConnection.connect();
            Log.d(TAG,httpURLConnection.getResponseMessage()+" Append with "+httpURLConnection.getResponseCode());
            while(httpURLConnection.getResponseCode()==HttpURLConnection.HTTP_MOVED_PERM)
            {
                httpURLConnection.getInputStream();
                URL url1=httpURLConnection.getURL();
            Log.d(TAG,"Redirected URL = "+url1);
            }

             InputStream inptStream=httpURLConnection.getInputStream();

这是logcat的输出: -

03-08 13:28:38.814 22597-23668/abhirojpanwar.tablayout D/AsyncImageDownloader: Redirected URL = https://unsplash.com/photos/65sru5g6xHk/download
03-08 13:28:38.814 22597-23668/abhirojpanwar.tablayout D/AsyncImageDownloader: Redirected URL = https://unsplash.com/photos/65sru5g6xHk/download
03-08 13:28:38.814 22597-23668/abhirojpanwar.tablayout D/AsyncImageDownloader: Redirected URL = https://unsplash.com/photos/65sru5g6xHk/download
03-08 13:28:38.814 22597-23668/abhirojpanwar.tablayout D/AsyncImageDownloader: Redirected URL = https://unsplash.com/photos/65sru5g6xHk/download
03-08 13:28:38.814 22597-23668/abhirojpanwar.tablayout D/AsyncImageDownloader: Redirected URL = https://unsplash.com/photos/65sru5g6xHk/download …