小编Mal*_*ngh的帖子

我正在尝试将NDK集成到我的项目中.我正在使用Gradle包装器2.9和类路径:gradle-experimental:0.6.0-alpha3.

项目级别:

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle-experimental:0.6.0-alpha6'
      }
}

allprojects {
    repositories {
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

应用级别gradle:

apply plugin: 'com.android.model.application'

model {
    android {
        compileSdkVersion = 23
        buildToolsVersion = "23.0.2"

        defaultConfig.with {
            applicationId = "com.ms.knowursensor.android"
            minSdkVersion.apiLevel = 11
            targetSdkVersion.apiLevel = 23
        }
    }

    compileOptions.with {
        sourceCompatibility=JavaVersion.VERSION_1_7
        targetCompatibility=JavaVersion.VERSION_1_7
    }

    android.ndk {
        moduleName = "sensorgraph"
    }
    android.buildTypes {
        release {
            minifyEnabled = false
            proguardFiles  += file('proguard-rules.txt')
        }
    } …

如何&在Android中使用Retrofit 附加了params的URL中发出HTTP GET请求？

网址:http://api.com？name = remote&class = TV

目前,我正在使用:

@GET("http://api.com?name={name}&class={class}")
    Call<CustomType> get(
            @Path(value = "name",encoded = false) String name,
            @Path(value = "class",encoded = false) String class);

我收到以下错误:

java.lang.IllegalArgumentException: URL query string "name={name}&class={class}" 
must not have replace block. 
For dynamic query parameters use @Query.

我首先使用这种方法生成 IV：

public static String generateRandomIV() {
    SecureRandom ranGen = new SecureRandom();
    byte[] aesKey = new byte[16];
    ranGen.nextBytes(aesKey);
    StringBuffer result = new StringBuffer();
    for (byte b : aesKey) {
        result.append(String.format("%02x", b));
    }
    if (16 > result.toString().length()) {
        return result.toString();
    } else {
        return result.toString().substring(0, 16);
    }
}

然后尝试解密使用上述方法生成的 IV 加密的字符串：

       private String decrypt(String _inputText, String _encryptionKey,
                                      String _initVector) throws Exception {
            String _out = "";
            int len = _encryptionKey.getBytes("UTF-8").length;
            if (_encryptionKey.getBytes("UTF-8").length >= _key.length) {
                len = _key.length;
                int ivlen = …

当我尝试在本地终端中打开新会话（按“+”）时，删除项目文件夹和项目/应用程序/文件夹中存在的构建文件夹后，出现以下错误：

可能的原因是什么？

Android Studio版本：3.1.2

操作系统：MacOS Sierra

如何获取selected的值radioButton？我尝试使用buttonGroup1.getSelection().getActionCommand()（如此处的一些答案中发布的）但它不起作用。另外，我暂时使用这段代码，但我想知道这是一个好的做法吗？

//Consider that maleRButton and femaleRButton are two radioButtons of 
//same buttonGroup
String getGender()
{
    if(maleRButton.isSelected())
    {
        return "Male";
    }
    else if(femaleRButton.isSelected())
    {
        return "Female";
    }
    else
    {
        return null;
    }
}

我做了一个外课和内课.这两个类都有变量int x.如何访问x内部类中的外部类.this.x不管用.

class OuterClass {
int x,y;
private class InnerClass {
    private void printSum(int x,int y) {
        this.x=x;
        this.y=y;
    }
  }
}

如何google-services.json在创建项目并启用服务后从Developer Console 获取？我想从Developer控制台生成它,而不是从Developer docs生成它.

I am trying to install pip through easy_install. I have tried the following command but no success:

$ sudo /usr/bin/easy_install pip

Result:

Searching for pip
Reading https://pypi.python.org/simple/pip/
Download error on https://pypi.python.org/simple/pip/: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) -- Some packages may not be found!
Couldn't find index page for 'pip' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading https://pypi.python.org/simple/
Download error on https://pypi.python.org/simple/: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:590) -- Some packages …

为什么这样:

printf("%d\n", pow(1,0)); /* outputs 0 */

回来了0？我期待它回归1.

这是一个错误：

class Apple(weightInGrams: Float){
    fun grow() {
        weightInGrams+= 2.0f
    }
}

我在我的应用程序中使用 GreenDao。为调试构建启用 Proguard。

添加数据绑定支持后，出现以下问题：

/app/src/main/java/com/example/MainApplication.java:29: 错误：找不到符号

私有 DaoSession mDaoSession;

      ^   

Run Code Online (Sandbox Code Playgroud)

符号：类 DaoSession
位置：类 Main Application

同样的问题即将到来DaoMaster。

另外，这个问题来了：

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:kaptDebugKotlin'.
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:103)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:73)

应用程序 build.gradle：

apply plugin: 'kotlin-kapt'
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
//For green dao
apply plugin: 'org.greenrobot.greendao'

buildscript {
    ext.kotlin_version = '1.2.41'
    ...
}
android {
    aaptOptions.cruncherEnabled = false
    aaptOptions.useNewCruncher = false
    ...
    }
    dataBinding {
        enabled = true
    }

    buildTypes {
        debug {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' …