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emulator: WARNING: Requested RAM size of 1536MB is too large for your environment, and is reduced to 864MB.emulator: device fd:584HAXM is working and emulator runs in fast virt mode Cannot set up guest memory 'pc.ram': Invalid argument

Android编程中，ScrollView嵌套ListView时，会无法正确的计算ListView的大小。解决的办法有如下两种：解决方案1：直接把包含ListView控件的ScrollView控件从布局文件中去除，留下ListView控件,这是最简单快捷的解决办法，如果一定要在ScrollView中包含ListView，则参考解决方案2：去除Scroll之前的XML:<Linear

package com.example.test;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.webkit.WebSettings;import android.

使用WebView可以在APP中调用浏览器，在地址栏输入网址（地址需要带http://www.），点击按钮即可搜索。Java文件package com.example.test;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View

//Db工具类package com.example.test;import android.content.Context;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteOpenHelper;public class Db extends SQLiteOpenHelp

public class MainActivity extends Activity{ SharedPreferences share; protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_

软件导航页可以帮助用户了解软件功能和特性，其中滑动导航页最为常见，本文简要记录导航页的编写。首先编写java文件Welcome.javapackage com.example.test;import java.util.ArrayList;import java.util.List;import android.app.Activity;import android.os.Bu

// 安卓客户端发送请求String strUrl="http://192.168.191.1:8080/trial/LoginServlet"; String result = null;String readLine = null;URL url1 = new URL(strUrl);HttpURLConnection urlConn = (HttpURLConnection)ur

HttpUtil工具类：package com.qq.util;import java.util.ArrayList;import java.util.List;import java.util.Map;import java.util.concurrent.Callable;import java.util.concurrent.FutureTask;import org.a

Thread.join()，是用来指定当前主线程等待其他线程执行完毕后，再来继续执行Thread.join()后面的代码。String string = null;Thread thread = new Thread(){            public void run() {try {  string = query(username, pwd);} catch

Cannot launch AVD in emulator. Output: emulator: WARNING: Crash service did not start emulator: WARNING: Classic qemu does not support SMP.... CPU acceleration status:HAXM must be updated(version 1.0.6<6.0.1).

异常信息:   编译时:   Expected resource of type styleable [ResourceType] 异常解决:  在使用TypedArray的语句,方法上或者类上加上注解@SuppressWarnings("ResourceType")关于解决方法: SuppressWarning("XXX")方法的作用是告诉编译器,一个让类