描述Dog对象:package android.java.oop10;publicclass Dog {publicstatic String name;publicstaticint age;publicstaticvoid showNameAge() {System.out.println("name:" + name + " age:" + age);}} main测试方法:package android.java.oop10;publicclass Demo01 {publicstaticvoid main(String[] args) {Dog.name = "阿白";Dog.age = 98;Dog.name = "李双";Dog.age = 90;Dog.showNameAge();}} 执行结果: 以上案例对应内存图...
我正在使用Chirp Android SDK通过声音共享数据,它的运行效果很好.
但是,当我启用我的proguard时,就会抛出此JNI异常,我尝试了多种方法来克服此问题,例如在proguard文件中添加proguard规则,请参见:-keep class io.chirp.connect.Chirpconnect { *; }
-keep class chirpconnect.Chirpconnect { *; }
-keepclasseswithmembernames class * {native methods; }但是找不到任何解决方案吗?
我刚刚在libs文件夹中添加了一个chirp SDK AAR...
在我将Android Studio更新为3.0后,我得到了无静态方法getFont()错误.我工作的项目是在github,https://github.com/ik024/GithubBrowser// Top-level build file where you can add configuration options common
to all sub-projects/modules.buildscript {
repositories {jcenter()maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}
dependencies {classpath 'com.android.tools.build:gradle:3.0.0'cl...
我将Android Studio更新为2.2,我的项目将不再构建.我的Activity的super.onCreate(savedInstanceState)给了我一个错误:java.lang.NoSuchMethodError: No static method getDrawable(Landroid/content/Context;I)Landroid/graphics/drawable/Drawable; in class Landroid/support/v4/content/ContextCompat; or its super classes (declaration of 'android.support.v4.content.ContextCompat' appears in /data/app/x.y.z-1/base.a...
我在Android Studio中有一个Kotlin项目.我在Kotlin代码中调用Java接口中的静态方法.构建失败并出现错误,Calls to static methods in Java interfaces are prohibited in JVM target 1.6. Recompile with '-jvm-target 1.8'我在build.gradle中有以下内容,compileOptions {sourceCompatibility JavaVersion.VERSION_1_8targetCompatibility JavaVersion.VERSION_1_8
}我还在Kotlin编译器设置中将Target JVM版本更改为1.8.仍然,构建会...
我在静态方法中调用非静态方法时遇到了一个大问题.
这是我的代码Class SMS
{public static void First_function(){SMS sms = new SMS();sms.Second_function();}public void Second_function(){Toast.makeText(getApplicationContext(),"Hello",1).show(); // This i anable to display and cause crashCallingCustomBaseAdapters(); //this was the adapter class and i anable to call this also}我能够调用Second_function但...
我在onCreate中有这个:final TextView text1 = (TextView) findViewById(R.id.txtNextAlarm);我正在尝试在同一个类中的方法中设置文本:public static void NextTxt(){text1.setText("");
}但它不承认“text1”.解决方法:问题是静态方法不与任何特定对象相关联,而是与整个类相关联.因此,他们只能在您的班级中看到静态字段.你的text1变量甚至不是,如果你说的是真的.相反,它是一个局部变量,只存在于onCreate()方法的长度.如果你知道...
我有以下JNI方法,它当前调用静态Java方法:void bindToMarketBillingServiceJNI(const char * inappID){JniMethodInfo t;if (JniHelper::getStaticMethodInfo(t, "com/mycompany/games/js/TestsDemo", "bindToMarketBillingService", "(Ljava/lang/String;)V")){jstring stringArg1;if (! inappID){stringArg1 = t.env->NewStringUTF("1");}else{stringArg1 = t.env->NewStringUTF(inappID);}t.env->CallStaticVoidMethod(t.class...
每当我在手机上运行我的应用程序时,我都会收到错误消息:FATAL EXCEPTION: main
E/AndroidRuntime(18680): java.lang.NoSuchMethodError: No static method zzb(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; in class Lcom/google/android/gms/common/internal/zzaa; or its super classes (declaration of 'com.google.android.gms.common.internal.zzaa' appears in /data/app/***/base.apk)
E/AndroidRuntime(1868...
我在我的Playstore中获得预发布报告,如下所示:
错误日志 – java.lang.NoSuchMethodError: No static method printStackTrace(Ljava/lang/Throwable;)V in class Lcom/google/devtools/build/android/desugar/runtime/ThrowableExtension; or its super classes (declaration of 'com.google.devtools.build.android.desugar.runtime.ThrowableExtension' appears in /data/app/com.google.android.apps.mtaas.crawler-1/base.apk...
我在一些项目中看到人们直接将静态方法导入Activity或类而不是整个类.
我的问题是,知道在同一个类中可以多次调用静态方法(为了更准确,5次或更多次),导入静态方法更有效,或者最好通过它的类调用它?解决方法:你的问题(据我所知)似乎确实解决了同样的问题.问题是:正在直接调用ClassName.staticMethod()
或这个import static ClassName.staticMethod;
//rest of the stuff
staticMethod();在这两种情况下,只要首先调用类,方法就会作为...
描述Student对象:package android.java.oop12;// 描述Student对象实体
public class Student {private String name;private int age;protected static String country = "CN";private Student() {}public Student(String name, int age) {/*** 通过拿到对象引用的地址(9998#==this),去操作 堆区内存的 name属性 age属性*/this.name = name;this.age = age;}public void showValue() {/*** 通过拿到对象引用的地址(9998#==this),...
描述Dog对象:package android.java.oop10;public class Dog {public static String name;public static int age;public static void showNameAge() {System.out.println("name:" + name + " age:" + age);}}
main测试方法:package android.java.oop10;public class Demo01 {public static void main(String[] args) {Dog.name = "阿白";Dog.age = 98;Dog.name = "李双";Dog.age = 90;Dog.showNameAge();}}
执行结果:
以上案...