Android get device ID

import android.provider.Settings.Secure;

private String android_id = Secure.getString(getContext().getContentResolver(),
                                                        Secure.ANDROID_ID); 

android fragment 傳值

public class A   extends Fragment {

B  b= new B();

 Bundle bundle = new Bundle();

 bundle.putString("test","test");

 b.setArguments(bundle);

}

public class  B  extends Fragment {

  Bundle bundle = getArguments();

  String test = bundle.getString("test");

  Log.i("test", test);

}

Android check network status

public class NetworkUtil {
   
    public static int TYPE_WIFI = 1;
    public static int TYPE_MOBILE = 2;
    public static int TYPE_NOT_CONNECTED = 0;
   
   
    public static int getConnectivityStatus(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        if (null != activeNetwork) {
            if(activeNetwork.getType() == ConnectivityManager.TYPE_WIFI)
                return TYPE_WIFI;
           
            if(activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE)
                return TYPE_MOBILE;
        }
        return TYPE_NOT_CONNECTED;
    }
   
    public static String getConnectivityStatusString(Context context) {
        int conn = NetworkUtil.getConnectivityStatus(context);
        String status = null;
        if (conn == NetworkUtil.TYPE_WIFI) {
            status = "ok for wifi";
        } else if (conn == NetworkUtil.TYPE_MOBILE) {
            status = "ok for mobule";
        } else if (conn == NetworkUtil.TYPE_NOT_CONNECTED) {
            status = "Not connected to Internet";
        }
        return status;
    }
}

assign padding to Listview item divider line

參考網址:http://stackoverflow.com/questions/14054364/how-to-assign-padding-to-listview-item-divider-line

(list_divider.xml)

<?xml version="1.0" encoding="UTF-8"?>
<inset xmlns:android="http://schemas.android.com/apk/res/android"
    android:insetLeft="50dp"
    android:insetRight="50dp" >

 <shape>
    <solid android:color="@color/orange" />
    <corners android:radius="2.0dip" />
</shape>

</inset>

<ListView
    android:dividerHeight="2dp"
    android:divider="@drawable/list_divider"
    ...
/>

android custom radio button

res/drawable           add      radio_selector.xml


<?xml version="1.0" encoding="utf-8"?>

<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:drawable="@drawable/icon_circle"
        android:state_checked="true"
        android:state_pressed="true" />
    <item
        android:drawable="@drawable/icon_select"
        android:state_pressed="true" />
    <item
        android:drawable="@drawable/icon_select"
        android:state_checked="true" />
    <item
        android:drawable="@drawable/icon_circle" />
</selector>







 xml


 <RadioButton
                        android:id="@+id/personal"
                        android:layout_height="35dp"
android:layout_width="35dp"
                        android:layout_marginRight="200dp"
                        android:button="@android:color/transparent"
                        android:background="@drawable/radio_selector"
                        android:textColor="@color/color4"
                        android:textSize="20sp" />

draw a smaller ShapeDrawable inside another shapeDrawable programmatically

  出處:http://stackoverflow.com/questions/13992094/how-to-draw-a-smaller-shapedrawable-inside-another-shapedrawable-programmaticall

ShapeDrawable biggerCircle= new ShapeDrawable( new OvalShape());
        biggerCircle.setIntrinsicHeight( 60 );
        biggerCircle.setIntrinsicWidth( 60);
        biggerCircle.setBounds(new Rect(0, 0, 60, 60));
        biggerCircle.getPaint().setColor(Color.BLUE);

        ShapeDrawable smallerCircle= new ShapeDrawable( new OvalShape());
        smallerCircle.setIntrinsicHeight( 10 );
        smallerCircle.setIntrinsicWidth( 10);
        smallerCircle.setBounds(new Rect(0, 0, 10, 10));
        smallerCircle.getPaint().setColor(Color.BLACK);
        smallerCircle.setPadding(50,50,50,50);
        Drawable[] d = {smallerCircle,biggerCircle};

        LayerDrawable composite1 = new LayerDrawable(d);

        btn.setBackgroundDrawable(composite1);  

Android Facebook like button

// how to use LikeView in Android

before setting , download FBSDK newer version, please google it.

1. create android Project , get PackageName & hashkey & main activty

2. facebook dev page setting by(PackageName & hashkey & main activty) , and join test_user by yourself , get APP_ID.

3. project set APP_ID in manifest like this:

<meta-data
  android:name="com.facebook.sdk.ApplicationId"
  android:value="@string/facebook_app_id" />


4. LikeView setting:

// layout

    <com.facebook.widget.LikeView
   android:id="@+id/like_view"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content">      
</com.facebook.widget.LikeView>

//class

private UiLifecycleHelper uiHelper;
LikeView like_view;
String like_url = "https://www.google.com.tw/";

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

uiHelper = new UiLifecycleHelper(this,mStatusCallback);

like_view = (LikeView)findViewById(R.id.like_view);
like_view.setObjectId(like_url);
like_view.setLikeViewStyle(Style.BOX_COUNT);

}
StatusCallback mStatusCallback = new StatusCallback(){
   @Override
   public void call(Session session, SessionState state, Exception exception) {

   }
};
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
   super.onActivityResult(requestCode, resultCode, data);
   uiHelper.onActivityResult(requestCode, resultCode, data, null);
}



PS: change like image method

jump to FBSDK lib_project find the com.facebook.internal.LikeButton => updateForLikeStatus() ,

Android Switch

java

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.CompoundButton;
import android.widget.Switch;
import android.widget.TextView;
import android.widget.CompoundButton.OnCheckedChangeListener;

public class MainActivity extends Activity {

private Switch mSwitch;
private TextView mViewShow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewShow = (TextView)findViewById(R.id.tv_show);
mSwitch = (Switch)findViewById(R.id.switch_def);
mSwitch.setOnCheckedChangeListener(new OnCheckedChangeListener(){
       
public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
Log.d("dddddd", "hi");
if (isChecked) {
mViewShow.setText(getString(R.string.text_on));
} else {
mViewShow.setText(getString(R.string.text_off));
}
}
});
}

}

xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

>

    <TextView 

        android:id="@+id/tv_show"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        

/>

    <Switch

        android:id="@+id/switch_def"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_below="@+id/tv_show"

        android:layout_marginTop="22dp"

        android:textOff="@string/text_off"

        android:textOn="@string/text_on" />

    

</RelativeLayout>

string.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string name="app_name">SwitchTest</string>

    <string name="hello_world">Hello world!</string>

    <string name="action_settings">Settings</string>

    <string name="text_on">On</string>

    <string name="text_off">Off</string>

</resources>

android viewpager solve setCurrentItem not working

mActivity.runOnUiThread(new Runnable() {  
         public void run()  
         {  
          try{
mPager.setCurrentItem(page);
          }catch(Exception e){
       
          }
     
         }  
     });  

Android 解決android AnimationDrawable out of memory 問題

在 AndroidManifest.xml  的 application 裡加  android:largeHeap="true"，可能是圖片過大造成
參考網址 http://stackoverflow.com/questions/22256097/out-of-memory-error-when-using-animationdrawable

Android 抓取網路圖片(picasso)

目前我都是用picasso來抓取，速度滿快的，語法簡單又有緩存功能

官網參考

使用方法

ImageView  imageView  = (ImageView) findViewById(R.id.image);

Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);

andorid TextView 限定行數+...

 //限定3行
android:maxLines="3"

//超過maxLines+...
  android:ellipsize="end"


android:scrollHorizontally="true"
android:singleLine="true"

Android 解決點擊按钮弹出Dialog，第二次出現問題

 參考網址 http://www.eoeandroid.com/thread-264875-1-1.html AlertDialog.Builder builder = new AlertDialog.Builder(mActivity); LayoutInflater factory = LayoutInflater.from(mActivity); v1 = factory.inflate(R.layout.share, null); builder.setView(v1);

Liferay 更改數據庫為MySQL

tomcat-7.0.27\webapps\ROOT\WEB-INF\classes裡創protal-ext.properties

Liferay中自帶有一個示例數據庫（HSQL）,如何更改為自己想要的數據庫呢？一.刪除示例數據庫 [liferay-home]/tomcat-[version number]/webapps\sevencogs-hook 將該目錄移除（備份到別的地方而非刪除）二.安裝MySQL，創建數據庫lportal 三.連接Liferay和MySQL 1.[liferay-home]/目錄新建文件portal-ext.properties 因為該文件的優先級高於默認配置文件，因此將覆蓋原文件中liferay與HQL連接2.portlet-ext.properties文件內容
1
#
2
# MySQL
3
#
4
jdbc.default.driverClassName=com.mysql.jdbc.Driver
5
jdbc.default.url=jdbc:mysql://localhost/lportal?
6
useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false
7
jdbc.default.username=你的用戶名
8
jdbc.default.password=你的密碼
3.關於JDBC驅動
Liferay已自帶MySQL JDBC驅動，位於[Tomcat Home]/lib/ext/mysql.jar 
如果使用其他Database，將驅動複製到該目錄下即可四.啟動Server，自動創建相關的表格

Liferay 同時連接不同資料庫

更改額外DB

1.建立portal-ext.properties (\tomcat-7.0.27\webapps\ROOT\WEB-INF\classes)

2.建立service.xml and bulid

3.建立ext-spring.xml (文件路徑/ WEB-INF/src/META-INF/ext-spring.xml) and bulid

portal-ext.properties 如下

jdbc.default.url=jdbc\:mysql\://localhost/liferay612?useUnicode\=true&characterEncoding\=UTF-8&useFastDateParsing\=false

jdbc.default.driverClassName=com.mysql.jdbc.Driver

jdbc.default.username=root

jdbc.default.password=root

jdbc.test .driverClassName=com.mysql.jdbc.Driver

jdbc.test .url=jdbc:mysql://localhost/testE?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false

jdbc.test .username=root

jdbc.test .password=root

service.xml 如下

<entity name="TableFromAnotherDataSource" table="TableFromAnotherDataSource" local-service="true" remote-service="true" data-source="anotherDataSource" session-factory="anotherSessionFactory">

<column name="testId" type="long" primary="true" />

<column name="description" type="String" />

/entity>

資料庫的資料表要自己建，額外DB不會自動建。

ext-spring.xml file 如下

<?xml version="1.0"?>

<beans default-destroy-method="destroy" default-init-method="afterPropertiesSet"

xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<bean id="anotherDataSource"

class="org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy">

<property name="targetDataSource" ref="anotherDataSourceWrapper" />

</bean>

<bean id="anotherDataSourceImpl"

class="com.liferay.portal.dao.jdbc.spring.DataSourceFactoryBean">

<property name="propertyPrefix" value="jdbc.test." />

</bean>

<bean id="anotherDataSourceWrapper" class="com.liferay.portal.dao.jdbc.util.DataSourceWrapper">

<constructor-arg ref="anotherDataSourceImpl" />

</bean>

<bean class="com.liferay.portal.dao.jdbc.util.DataSourceSwapper">

<property name="liferayDataSourceWrapper" ref="anotherDataSourceWrapper" />

</bean>

<bean id="anotherHibernateSessionFactory" class="com.liferay.portal.kernel.spring.util.SpringFactoryUtil"

factory-method="newBean">

<constructor-arg

value="com.liferay.portal.spring.hibernate.PortletHibernateConfiguration" />

<constructor-arg>

<map>

<entry key="dataSource" value-ref="anotherDataSource" />

</map>

</constructor-arg>

</bean>

<bean id="anotherSessionFactory" class="com.liferay.portal.kernel.spring.util.SpringFactoryUtil"

factory-method="newBean">

<constructor-arg

value="com.liferay.portal.dao.orm.hibernate.PortletSessionFactoryImpl" />

<constructor-arg>

<map>

<entry key="dataSource" value-ref="anotherDataSource" />

<entry key="sessionFactoryClassLoader" value-ref="portletClassLoader" />

<entry key="sessionFactoryImplementor" value-ref="anotherHibernateSessionFactory" />

</map>

</constructor-arg>

</bean>

</beans>

JAVA

TableFromAnotherDataSourceImpl tableFromDefaultDataSource = new TableFromAnotherDataSourceImpl();

long testId = CounterLocalServiceUtil.increment(TableFromAnotherDataSourceImpl.class.getName());

tableFromDefaultDataSource.setTestId(testId);

tableFromDefaultDataSource.setDescription("hi");

TableFromAnotherDataSourceLocalServiceUtil.addTableFromAnotherDataSource(tableFromDefaultDataSource);

Liferay ActionRequest

Liferay  ActionRequest

java 檔

package com.liferay.samples;

import java.io.IOException;

import javax.portlet.ActionRequest;

import javax.portlet.ActionResponse;

import javax.portlet.PortletException;

import javax.portlet.PortletPreferences;

import com.liferay.portal.kernel.servlet.SessionMessages;

import com.liferay.util.bridges.mvc.MVCPortlet;

public class MyGreetingPortlet extends MVCPortlet {

    @Override

    public void processAction(

            ActionRequest actionRequest, ActionResponse actionResponse)

        throws IOException, PortletException {

        PortletPreferences prefs = actionRequest.getPreferences();

        String greeting = actionRequest.getParameter("greeting");

        if (greeting != null) {

            prefs.setValue("greeting", greeting);

            prefs.store();

       

        }

        SessionMessages.add(actionRequest, "success");

        super.processAction(actionRequest, actionResponse);

    }

}

view.jsp

<%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet"%>

<%@ taglib uri="http://liferay.com/tld/aui" prefix="aui"%>

<%@ taglib uri="http://liferay.com/tld/ui" prefix="liferay-ui"%>

<%@ page import="com.liferay.portal.kernel.util.ParamUtil"%>

<%@ page import="com.liferay.portal.kernel.util.Validator"%>

<%@ page import="javax.portlet.PortletPreferences"%>

<portlet:defineObjects />

<%

 PortletPreferences prefs = renderRequest.getPreferences();

 String greeting = (String) prefs.getValue("greeting",

 "Hello! Welcome to our portal.");

%>

<liferay-ui:success key="success" message="Greeting saved successfully!" />

<portlet:actionURL var="editGreetingURL">

 <portlet:param name="jspPage" value="/view.jsp" />

</portlet:actionURL>

<aui:form action="<%=editGreetingURL%>" method="post">

 <aui:input label="greeting" name="greeting" type="text"

 value="<%=greeting%>" />

 <aui:button type="submit" />

</aui:form>

<portlet:renderURL var="viewGreetingURL">

 <portlet:param name="jspPage" value="/view.jsp" />

</portlet:renderURL>

<p>

 <a href="<%=viewGreetingURL%>">Back</a>

</p>

注:

portlet.xml要加<portlet-class>package name.java name</portlet-class>