Android Studio使用,live tamplate配置

1、new Module  mylibrary,编译时需要在app的build.gradle中配置:

implementation project(‘:mylibrary‘),
//mylibrary的build.gradle中implementation的内容

 

2、出现以下错误

FAILURE: Build failed with an exception.

* Where:
Initialization script ‘/private/var/folders/48/kbm80yjd17g60jh0fv0vm5l80000gn/T/Test_main__.gradle‘ line: 20

* What went wrong:
A problem occurred configuring project ‘:app‘.
> SourceSet with name ‘main‘ not found.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s

解决方案: 

项目.idea/gradle.xml:

<GradleProjectSettings>标签下少了

<option name="delegatedBuild" value="false" />

这行配置,然后给新项目添加这行配置,重启

意思是不委托gradle进行构建。现实效果也是加了这行配置之后就是jvm执行Java类的main方法了,而不是gradle当做task来执行了。

Android Studio 3.0 无法运行Java代码main() 方法的解决方案

Android Studio 升级到3.0 以后发现 运行Java 代码中的main()方法的时候grandle 就会报错的问题

解决方法 :

在gradle.properties文件中添加android.enableAapt2=false

3、Live tamplate配置

   1)单例

    /**
     * 1、给mInstance分配实例分配对象
     * 2、调用Singleton1的构造方法,初始化成员字段
     * 3、Singleton1对象赋值给mInstance
     * 以上三个步骤在jdk中可以是乱序的,会指令重排,所以会导致DCL失效,
     */
    private volatile static $CLASSNAME$ mInstance = null;  //volatile,防止指令重排,让双重检查更安全

    private $CLASSNAME$() { }    // 私有的构造方法
    public static $CLASSNAME$ getInstance() {
        if (mInstance == null) {
            synchronized ($CLASSNAME$.class) {//DCL
                if (mInstance == null) {
                    mInstance = new $CLASSNAME$();
                }
            }
        }
        return mInstance;
    }

   2)fragment切换

    private void switchFragment(Fragment from, Fragment to) {
        if (from != to){
            FragmentManager manager = getSupportFragmentManager();
            FragmentTransaction transaction = manager.beginTransaction();
            if (!to.isAdded()){
                if (from != null){
                    transaction.hide(from);
                }
                if (to != null){
                    transaction.add($FragmentID$, to);
                }
            } else {
                if (from != null){
                    transaction.hide(from);
                }
                if (to != null){
                    transaction.show(to).commit();
                }
            }
        }
    }

   3)tag

public static final String TAG = $CLASSNAME$.class.getSimpleName();

 

Android Studio使用,live tamplate配置

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