webview.getSettings().setJavaScriptEnabled(true);
webview.addJavascriptInterface(object,"name");//把Name="name"的對(duì)象添加到object中。object如果是this，就是window.name
webview.loadUrl("file:///android_asset/index.html");//注意這個(gè)資源的位置是跟res并列的文件夾下。
js或html中調(diào)用android中方法代碼：
或js中 window.name.java中的方法()；
android中調(diào)用js的function方法：
Callfunction(){
webview.loadUrl("javascript: function ()");
}
需要注意的地方，很多數(shù)據(jù)類型js中不認(rèn)識(shí)，最好是在android那邊封裝好，提供必要的方法接口。比如傳到j(luò)s中的list，在js中是沒辦法去得到里面的元素的。
addJavascriptInterface：addJavascriptInterface方法中要綁定的Java對(duì)象及方法要運(yùn)行在另外的線程中，不能運(yùn)行在構(gòu)造他的線程中，也就是說不能運(yùn)行在當(dāng)前的activity線程中，就是把這個(gè)方法綁定到頁(yè)面中，js也可以調(diào)用
文檔中的解釋：
Use this function to bind an object to Javascript so that the methods can be accessed from Javascript.
The Java object that is bound runs in another thread and not in the thread that it was constructed in.
Demo代碼：
JavaJsDemo.java
package com.demo.android.JavaJsDemo;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebView;
import java.util.ArrayList;
import java.util.List;
public class JavaJsDemo extends Activity {
/** Called when the activity is first created. */
private WebView web;
public List<String> list;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initData();
setContentView(R.layout.main);
web = (WebView)this.findViewById(R.id.webview);
//開啟javascript設(shè)置
web.getSettings().setJavaScriptEnabled(true);
//把RIAExample的一個(gè)實(shí)例添加到j(luò)s的全局對(duì)象window中
//這樣就可以使用window.javatojs來調(diào)用它的方法
web.addJavascriptInterface(this, "javatojs");
//加載網(wǎng)頁(yè)
web.loadUrl("file:///android_asset/index.html");
}
void initData(){
list=new ArrayList<String>();
for(int i=0;i<5;i++){
list.add("我是List中的第"+(i+1)+"行");
}
}
/**
* 該方法將在js腳本中，通過window.javatojs.....()進(jìn)行調(diào)用
* @return
*/
public Object getObject(int index){
return list.get(index);
}
public int getSize(){
return list.size();
}
public void Callfunction(){
web.loadUrl("javascript: GetList()");
}
}
index.html
DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>demotitle>
<script language="javascript">
function GetList(){
var i=window.javatojs.getSize();
for(var n=0;n<i;n++){
var jsdata= window.javatojs.getObject(n);//拿到activity里面的屬性javadata
var datalistdiv = document.getElementById("datalist"); //得到頁(yè)面的div
pnode = document.createElement("p");//創(chuàng)建一個(gè)p標(biāo)簽，再建個(gè)textnode
tnode = document.createTextNode(jsdata);
pnode.appendChild(tnode);//p中加入數(shù)據(jù)
datalistdiv.appendChild(pnode);//div中鍵入新的p
}
}
script>
head>
<body onload="javascript:window.javatojs.Callfunction()">//調(diào)用java方法
<div id = "datalist">
this is a demo
div>
body>
html>
開花流水 2010-11-01 14:22 發(fā)表評(píng)論
]]>android.permission.ACCESS_CHECKIN_PROPERTIES
允許讀寫訪問”properties”表在checkin數(shù)據(jù)庫(kù)中，改值可以修改上傳( Allows read/write access to the “properties” table in the checkin database, to change values that get uploaded)
android.permission.ACCESS_COARSE_LOCATION
允許一個(gè)程序訪問CellID或WiFi熱點(diǎn)來獲取粗略的位置(Allows an application to access coarse (e.g., Cell-ID, WiFi) location)
android.permission.ACCESS_FINE_LOCATION
允許一個(gè)程序訪問精良位置(如GPS) (Allows an application to access fine (e.g., GPS) location)
android.permission.ACCESS_LOCATION_EXTRA_COMMANDS
允許應(yīng)用程序訪問額外的位置提供命令(Allows an application to access extra location provider commands)
android.permission.ACCESS_MOCK_LOCATION
允許程序創(chuàng)建模擬位置提供用于測(cè)試(Allows an application to create mock location providers for testing)
android.permission.ACCESS_NETWORK_STATE
允許程序訪問有關(guān)GSM網(wǎng)絡(luò)信息(Allows applications to access information about networks)
android.permission.ACCESS_SURFACE_FLINGER
允許程序使用SurfaceFlinger底層特性(Allows an application to use SurfaceFlinger’s low level features)
android.permission.ACCESS_WIFI_STATE
允許程序訪問Wi-Fi網(wǎng)絡(luò)狀態(tài)信息(Allows applications to access information about Wi-Fi networks)
android.permission.ADD_SYSTEM_SERVICE
允許程序發(fā)布系統(tǒng)級(jí)服務(wù)(Allows an application to publish system-level services).
android.permission.BATTERY_STATS
允許程序更新手機(jī)電池統(tǒng)計(jì)信息(Allows an application to update the collected battery statistics)
android.permission.BLUETOOTH
允許程序連接到已配對(duì)的藍(lán)牙設(shè)備(Allows applications to connect to paired bluetooth devices)
android.permission.BLUETOOTH_ADMIN
允許程序發(fā)現(xiàn)和配對(duì)藍(lán)牙設(shè)備(Allows applications to discover and pair bluetooth devices)
android.permission.BRICK
請(qǐng)求能夠禁用設(shè)備(非常危險(xiǎn))(Required to be able to disable the device (very *erous!).)
android.permission.BROADCAST_PACKAGE_REMOVED
允許程序廣播一個(gè)提示消息在一個(gè)應(yīng)用程序包已經(jīng)移除后(Allows an application to broadcast a notification that an application package has been removed)
android.permission.BROADCAST_STICKY
允許一個(gè)程序廣播常用intents(Allows an application to broadcast sticky intents)
android.permission.CALL_PHONE
允許一個(gè)程序初始化一個(gè)電話撥號(hào)不需通過撥號(hào)用戶界面需要用戶確認(rèn)(Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call being placed.)
android.permission.CALL_PRIVILEGED
允許一個(gè)程序撥打任何號(hào)碼，包含緊急號(hào)碼無需通過撥號(hào)用戶界面需要用戶確認(rèn)(Allows an application to call any phone number, including emergency numbers, without going through the Dialer user interface for the user to confirm the call being placed)
android.permission.CAMERA
請(qǐng)求訪問使用照相設(shè)備(Required to be able to access the camera device. )
android.permission.CHANGE_COMPONENT_ENABLED_STATE
允許一個(gè)程序是否改變一個(gè)組件或其他的啟用或禁用(Allows an application to change whether an application component (other than its own) is enabled or not. )
android.permission.CHANGE_CONFIGURATION
允許一個(gè)程序修改當(dāng)前設(shè)置，如本地化(Allows an application to modify the current configuration, such as locale. )
android.permission.CHANGE_NETWORK_STATE
允許程序改變網(wǎng)絡(luò)連接狀態(tài)(Allows applications to change network connectivity state)
android.permission.CHANGE_WIFI_STATE
允許程序改變Wi-Fi連接狀態(tài)(Allows applications to change Wi-Fi connectivity state)
android.permission.CLEAR_APP_CACHE
允許一個(gè)程序清楚緩存從所有安裝的程序在設(shè)備中(Allows an application to clear the caches of all installed applications on the device. )
android.permission.CLEAR_APP_USER_DATA
允許一個(gè)程序清除用戶設(shè)置(Allows an application to clear user data)
android.permission.CONTROL_LOCATION_UPDATES
允許啟用禁止位置更新提示從無線模塊(Allows enabling/disabling location update notifications from the radio. )
android.permission.DELETE_CACHE_FILES
允許程序刪除緩存文件(Allows an application to delete cache files)
android.permission.DELETE_PACKAGES
允許一個(gè)程序刪除包(Allows an application to delete packages)
android.permission.DEVICE_POWER
允許訪問底層電源管理(Allows low-level access to power management)
android.permission.DIAGNOSTIC
允許程序RW診斷資源(Allows applications to RW to diagnostic resources. )
android.permission.DISABLE_KEYGUARD
允許程序禁用鍵盤鎖(Allows applications to disable the keyguard )
android.permission.DUMP
允許程序返回狀態(tài)抓取信息從系統(tǒng)服務(wù)(Allows an application to retrieve state dump information from system services.)
android.permission.EXPAND_STATUS_BAR
允許一個(gè)程序擴(kuò)展收縮在狀態(tài)欄,android開發(fā)網(wǎng)提示應(yīng)該是一個(gè)類似Windows Mobile中的托盤程序(Allows an application to expand or collapse the status bar. )
android.permission.FACTORY_TEST
作為一個(gè)工廠測(cè)試程序，運(yùn)行在root用戶(Run as a manufacturer test application, running as the root user. )
android.permission.FLASHLIGHT
訪問閃光燈,android開發(fā)網(wǎng)提示HTC Dream不包含閃光燈(Allows access to the flashlight )
android.permission.FORCE_BACK
允許程序強(qiáng)行一個(gè)后退操作是否在頂層activities(Allows an application to force a BACK operation on whatever is the top activity. )
android.permission.FOTA_UPDATE
暫時(shí)不了解這是做什么使用的，android開發(fā)網(wǎng)分析可能是一個(gè)預(yù)留權(quán)限.
android.permission.GET_ACCOUNTS
訪問一個(gè)帳戶列表在Accounts Service中(Allows access to the list of accounts in the Accounts Service)
android.permission.GET_PACKAGE_SIZE
允許一個(gè)程序獲取任何package占用空間容量(Allows an application to find out the space used by any package. )
android.permission.GET_TASKS
允許一個(gè)程序獲取信息有關(guān)當(dāng)前或最近運(yùn)行的任務(wù)，一個(gè)縮略的任務(wù)狀態(tài)，是否活動(dòng)等等(Allows an application to get information about the currently or recently running tasks: a thumbnail representation of the tasks, what activities are running in it, etc.)
android.permission.HARDWARE_TEST
允許訪問硬件(Allows access to hardware peripherals. )
android.permission.INJECT_EVENTS
允許一個(gè)程序截獲用戶事件如按鍵、觸摸、軌跡球等等到一個(gè)時(shí)間流，android 開發(fā)網(wǎng)提醒算是hook技術(shù)吧(Allows an application to inject user events (keys, touch, trackball) into the event stream and deliver them to ANY window.)
android.permission.INSTALL_PACKAGES
允許一個(gè)程序安裝packages(Allows an application to install packages. )
android.permission.INTERNAL_SYSTEM_WINDOW
允許打開窗口使用系統(tǒng)用戶界面(Allows an application to open windows that are for use by parts of the system user interface. )
android.permission.INTERNET
允許程序打開網(wǎng)絡(luò)套接字(Allows applications to open network sockets)
android.permission.MANAGE_APP_TOKENS
允許程序管理(創(chuàng)建、催后、 z- order默認(rèn)向z軸推移)程序引用在窗口管理器中(Allows an application to manage (create, destroy, Z-order) application tokens in the window manager. )
android.permission.MASTER_CLEAR目前還沒有明確的解釋，android開發(fā)網(wǎng)分析可能是清除一切數(shù)據(jù)，類似硬格機(jī)
android.permission.MODIFY_AUDIO_SETTINGS
允許程序修改全局音頻設(shè)置(Allows an application to modify global audio settings)
android.permission.MODIFY_PHONE_STATE
允許修改話機(jī)狀態(tài)，如電源，人機(jī)接口等(Allows modification of the telephony state – power on, mmi, etc. )
android.permission.MOUNT_UNMOUNT_FILESYSTEMS
允許掛載和反掛載文件系統(tǒng)可移動(dòng)存儲(chǔ)(Allows mounting and unmounting file systems for removable storage. )
android.permission.PERSISTENT_ACTIVITY
允許一個(gè)程序設(shè)置他的activities顯示(Allow an application to make its activities persistent. )
android.permission.PROCESS_OUTGOING_CALLS
允許程序監(jiān)視、修改有關(guān)播出電話(Allows an application to monitor, modify, or abort outgoing calls)
android.permission.READ_CALENDAR
允許程序讀取用戶日歷數(shù)據(jù)(Allows an application to read the user’s calendar data.)
android.permission.READ_CONTACTS
允許程序讀取用戶聯(lián)系人數(shù)據(jù)(Allows an application to read the user’s contacts data.)
android.permission.READ_FRAME_BUFFER
允許程序屏幕波或和更多常規(guī)的訪問幀緩沖數(shù)據(jù)(Allows an application to take screen shots and more generally get access to the frame buffer data)
android.permission.READ_INPUT_STATE
允許程序返回當(dāng)前按鍵狀態(tài)(Allows an application to retrieve the current state of keys and switches. )
android.permission.READ_LOGS
允許程序讀取底層系統(tǒng)日志文件(Allows an application to read the low-level system log files. )
android.permission.READ_OWNER_DATA
允許程序讀取所有者數(shù)據(jù)(Allows an application to read the owner’s data)
android.permission.READ_SMS
允許程序讀取短信息(Allows an application to read SMS messages.)
android.permission.READ_SYNC_SETTINGS
允許程序讀取同步設(shè)置(Allows applications to read the sync settings)
android.permission.READ_SYNC_STATS
允許程序讀取同步狀態(tài)(Allows applications to read the sync stats)
android.permission.REBOOT
請(qǐng)求能夠重新啟動(dòng)設(shè)備(Required to be able to reboot the device. )
android.permission.RECEIVE_BOOT_COMPLETED
允許一個(gè)程序接收到 ACTION_BOOT_COMPLETED廣播在系統(tǒng)完成啟動(dòng)(Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting. )
android.permission.RECEIVE_MMS
允許一個(gè)程序監(jiān)控將收到MMS彩信,記錄或處理(Allows an application to monitor incoming MMS messages, to record or perform processing on them. )
android.permission.RECEIVE_SMS
允許程序監(jiān)控一個(gè)將收到短信息，記錄或處理(Allows an application to monitor incoming SMS messages, to record or perform processing on them.)
android.permission.RECEIVE_WAP_PUSH
允許程序監(jiān)控將收到WAP PUSH信息(Allows an application to monitor incoming WAP push messages. )
android.permission.RECORD_AUDIO
允許程序錄制音頻(Allows an application to record audio)
android.permission.REORDER_TASKS
允許程序改變Z軸排列任務(wù)(Allows an application to change the Z-order of tasks)
android.permission.RESTART_PACKAGES
允許程序重新啟動(dòng)其他程序(Allows an application to restart other applications)
android.permission.SEND_SMS
允許程序發(fā)送SMS短信(Allows an application to send SMS messages)
android.permission.SET_ACTIVITY_WATCHER
允許程序監(jiān)控或控制activities已經(jīng)啟動(dòng)全局系統(tǒng)中Allows an application to watch and control how activities are started globally in the system.
android.permission.SET_ALWAYS_FINISH
允許程序控制是否活動(dòng)間接完成在處于后臺(tái)時(shí)Allows an application to control whether activities are immediately finished when put in the background.
android.permission.SET_ANIMATION_SCALE
修改全局信息比例(Modify the global animation scaling factor.)
android.permission.SET_DEBUG_APP
配置一個(gè)程序用于調(diào)試(Configure an application for debugging.)
android.permission.SET_ORIENTATION
允許底層訪問設(shè)置屏幕方向和實(shí)際旋轉(zhuǎn)(Allows low-level access to setting the orientation (actually rotation) of the screen.)
android.permission.SET_PREFERRED_APPLICATIONS
允許一個(gè)程序修改列表參數(shù)PackageManager.addPackageToPreferred() 和PackageManager.removePackageFromPreferred()方法(Allows an application to modify the list of preferred applications with the PackageManager.addPackageToPreferred() and PackageManager.removePackageFromPreferred() methods.)
android.permission.SET_PROCESS_FOREGROUND
允許程序當(dāng)前運(yùn)行程序強(qiáng)行到前臺(tái)(Allows an application to force any currently running process to be in the foreground.)
android.permission.SET_PROCESS_LIMIT
允許設(shè)置最大的運(yùn)行進(jìn)程數(shù)量(Allows an application to set the maximum number of (not needed) application processes that can be running. )
android.permission.SET_TIME_ZONE
允許程序設(shè)置時(shí)間區(qū)域(Allows applications to set the system time zone)
android.permission.SET_WALLPAPER
允許程序設(shè)置壁紙(Allows applications to set the wallpaper )
android.permission.SET_WALLPAPER_HINTS
允許程序設(shè)置壁紙hits(Allows applications to set the wallpaper hints)
android.permission.SIGNAL_PERSISTENT_PROCESSES
允許程序請(qǐng)求發(fā)送信號(hào)到所有顯示的進(jìn)程中(Allow an application to request that a signal be sent to all persistent processes)
android.permission.STATUS_BAR
允許程序打開、關(guān)閉或禁用狀態(tài)欄及圖標(biāo)Allows an application to open, close, or disable the status bar and its icons.
android.permission.SUBSCRIBED_FEEDS_READ
允許一個(gè)程序訪問訂閱RSS Feed內(nèi)容提供(Allows an application to allow access the subscribed feeds ContentProvider. )
android.permission.SUBSCRIBED_FEEDS_WRITE
系統(tǒng)暫時(shí)保留改設(shè)置,android開發(fā)網(wǎng)認(rèn)為未來版本會(huì)加入該功能。
android.permission.SYSTEM_ALERT_WINDOW
允許一個(gè)程序打開窗口使用 TYPE_SYSTEM_ALERT，顯示在其他所有程序的頂層(Allows an application to open windows using the type TYPE_SYSTEM_ALERT, shown on top of all other applications. )
android.permission.VIBRATE
允許訪問振動(dòng)設(shè)備(Allows access to the vibrator)
android.permission.WAKE_LOCK
允許使用PowerManager的 WakeLocks保持進(jìn)程在休眠時(shí)從屏幕消失( Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming)
android.permission.WRITE_APN_SETTINGS
允許程序?qū)懭?span id="wmqeeuq" class="t_tag" onclick="tagshow(event)" href="tag.php?name=API">API設(shè)置(Allows applications to write the apn settings)
android.permission.WRITE_CALENDAR
允許一個(gè)程序?qū)懭氲蛔x取用戶日歷數(shù)據(jù)(Allows an application to write (but not read) the user’s calendar data. )
android.permission.WRITE_CONTACTS
允許程序?qū)懭氲蛔x取用戶聯(lián)系人數(shù)據(jù)(Allows an application to write (but not read) the user’s contacts data. )
android.permission.WRITE_GSERVICES
允許程序修改Google服務(wù)地圖(Allows an application to modify the Google service map. )
android.permission.WRITE_OWNER_DATA
允許一個(gè)程序?qū)懭氲蛔x取所有者數(shù)據(jù)(Allows an application to write (but not read) the owner’s data.)
android.permission.WRITE_SETTINGS
允許程序讀取或?qū)懭胂到y(tǒng)設(shè)置(Allows an application to read or write the system settings. )
android.permission.WRITE_SMS
允許程序?qū)懚绦?Allows an application to write SMS messages)
android.permission.WRITE_SYNC_SETTINGS
允許程序?qū)懭胪皆O(shè)置(Allows applications to write the sync settings)
android平臺(tái)上的權(quán)限許可分得很細(xì)，如果軟件無法正常執(zhí)行時(shí)看看是不是缺少相關(guān)的permission聲明，最終我們還需要使用 android sign tools簽名生成的apk文件。
開花流水 2010-07-16 10:05 發(fā)表評(píng)論
]]>2. 純數(shù)字 android:numeric="true" 這條可以讓輸入法自動(dòng)變?yōu)閿?shù)字輸入鍵盤，同時(shí)僅允許0-9的數(shù)字輸入
3. 僅允許 android:capitalize="cwj1987" 這樣僅允許接受輸入cwj1987，一般用于密碼驗(yàn)證
下面是一些擴(kuò)展的風(fēng)格屬性
android:editable="false" 設(shè)置EditText不可編輯
android:singleLine="true" 強(qiáng)制輸入的內(nèi)容在單行
android:ellipsize="end" 自動(dòng)隱藏尾部溢出數(shù)據(jù)，一般用于文字內(nèi)容過長(zhǎng)一行無法全部顯示時(shí)。
開花流水 2010-07-07 14:30 發(fā)表評(píng)論
]]>//獲得觸摸的坐標(biāo)
float x = event.getX();
float y = event.getY(); switch (event.getAction())
{
//觸摸屏幕時(shí)刻
case MotionEvent.ACTION_DOWN:
break;
//觸摸并移動(dòng)時(shí)刻
case MotionEvent.ACTION_MOVE:
break;
//終止觸摸時(shí)刻
case MotionEvent.ACTION_UP:
break;
}
return true;
}
開花流水 2010-07-07 11:46 發(fā)表評(píng)論
]]>