整理与网络资源

整理与网络资源

 

 

          Intent应该算是Android中特有的东西。你可以在Intent中指定程序要执行的动作（比如：view,edit,dial），以及程序执行到该动作时所需要的资料。都指定好后，只要调用startActivity()，Android系统会自动寻找最符合你指定要求的应用程序，并执行该程序。

打开其他APK文件的ACTIVITY

Intent mIntent = new Intent();
ComponentName comp = new ComponentName("com.android.a","com.android.a.AbcActivity" );
mIntent.setComponent(comp);
mIntent.setAction("android.intent.action.MAIN");
startActivity(mIntent);

显示网页:

1.        Uri uri = Uri.parse("http://www.google.com");

2.        Intent it  = new Intent(Intent.ACTION_VIEW,uri);

3.        startActivity(it);

 

显示地图:

1.        Uri uri = Uri.parse("geo:38.899533,-77.036476");

2.        Intent it = new Intent(Intent.Action_VIEW,uri);

3.        startActivity(it);

 

路径规划:

1.        Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");

2.        Intent it = new Intent(Intent.ACTION_VIEW,URI);

3.        startActivity(it);

 

拨打电话:
调用拨号程序

1.        Uri uri = Uri.parse("tel:xxxxxx");

2.        Intent it = new Intent(Intent.ACTION_DIAL, uri); 

3.        startActivity(it); 

 

1.        Uri uri = Uri.parse("tel.xxxxxx");

2.        Intent it =new Intent(Intent.ACTION_CALL,uri);

3.        要使用这个必须在配置文件中加入<uses-permission android:name="android.permission.CALL_PHONE" />

 

 

发送SMS/MMS
调用发送短信的程序

1.        Intent it = new Intent(Intent.ACTION_VIEW);  

2.        it.putExtra("sms_body", "The SMS text");  

3.        it.setType("vnd.android-dir/mms-sms");  

4.        startActivity(it); 

 

 

发送短信

1.        Uri uri = Uri.parse("smsto:0800000123");  

2.        Intent it = new Intent(Intent.ACTION_SENDTO, uri);  

3.        it.putExtra("sms_body", "The SMS text");  

4.        startActivity(it); 

 

 

发送彩信

1.        Uri uri = Uri.parse("content://media/external/images/media/23");  

2.        Intent it = new Intent(Intent.ACTION_SEND);  

3.        it.putExtra("sms_body", "some text");  

4.        it.putExtra(Intent.EXTRA_STREAM, uri);  

5.        it.setType("image/png");  

6.        startActivity(it);

 

 

发送Email

1.        

2.        Uri uri = Uri.parse("mailto:[e-mail]");

3.        Intent it = new Intent(Intent.ACTION_SENDTO, uri);

4.        startActivity(it);

 

1.        Intent it = new Intent(Intent.ACTION_SEND);  

2.        it.putExtra(Intent.EXTRA_EMAIL, "[e-mail]");  

3.        it.putExtra(Intent.EXTRA_TEXT, "The email body text");  

4.        it.setType("text/plain");  

5.        startActivity(Intent.createChooser(it, "Choose Email Client")); 

 

1.        Intent it=new Intent(Intent.ACTION_SEND);    

2.        String[] tos={"[e-mail]"};    

3.        String[] ccs={"[e-mail]"};    

4.        it.putExtra(Intent.EXTRA_EMAIL, tos);    

5.        it.putExtra(Intent.EXTRA_CC, ccs);    

6.        it.putExtra(Intent.EXTRA_TEXT, "The email body text");    

7.        it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");    

8.        it.setType("message/rfc822");    

9.        startActivity(Intent.createChooser(it, "Choose Email Client"));  

 

 

添加附件

1.        Intent it = new Intent(Intent.ACTION_SEND);  

2.        it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");  

3.        it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");  

4.        sendIntent.setType("audio/mp3");  

5.        startActivity(Intent.createChooser(it, "Choose Email Client"));

 

 

播放多媒体

//方法1.

        Uri uri = Uri.parse("file:///sdcard/song.mp3");
        Intent it = new Intent(Intent.ACTION_VIEW, uri);
//      it.addFlags(it.FLAG_ACTIVITY_NEW_TASK);//非必须选项
        it.setDataAndType(uri, "audio/mp3");
        context.startActivity(it);

//方法2.

1.         

2.        Intent it = new Intent(Intent.ACTION_VIEW);

3.        Uri uri = Uri.parse("file:///sdcard/song.mp3");

4.        it.setDataAndType(uri, "audio/mp3");

5.        startActivity(it);

//方法3. 启动一个播放器并播放一个系统声音

1.        Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");  

2.        Intent it = new Intent(Intent.ACTION_VIEW, uri);  

3.        startActivity(it); 

 

 

Uninstall 程序

1.        Uri uri = Uri.fromParts("package", strPackageName, null);  

2.        Intent it = new Intent(Intent.ACTION_DELETE, uri);  

3.        startActivity(it);

 

 

uninstall apk

1.        Uri uninstallUri = Uri.fromParts("package", "xxx", null);

2.        

3.        returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);

install apk

1.        Uri installUri = Uri.fromParts("package", "xxx", null);

2.        

3.        returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);

 

 

play audio

1.        Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");

2.        

3.        returnIt = new Intent(Intent.ACTION_VIEW, playUri);

 

1.        //发送附件

2.        Intent it = new Intent(Intent.ACTION_SEND); 

3.        it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text"); 

4.        it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3"); 

5.        sendIntent.setType("audio/mp3"); 

6.        startActivity(Intent.createChooser(it, "Choose Email Client"));

 

 

 

market相关

再来一个market相关的：
market相关

1.        //搜索应用

2.        Uri uri = Uri.parse("market://search?q=pname:pkg_name"); 

3.        Intent it = new Intent(Intent.ACTION_VIEW, uri); 

4.        startActivity(it); 

5.        //where pkg_name is the full package path for an application 

6.        

7.        //显示指定应用的详细页面（这个好像不支持了，找不到app_id）

8.        Uri uri = Uri.parse("market://details?id=app_id"); 

9.        Intent it = new Intent(Intent.ACTION_VIEW, uri); 

10.     startActivity(it); 

11.     //where app_id is the application ID, find the ID 

12.     //by clicking on your application on Market home 

13.     //page, and notice the ID from the address bar

 
 

下面列出几种Intent的用法

1：查看是否有存储卡插入

String status=Environment.getExternalStorageState();
if(status.equals(Enviroment.MEDIA_MOUNTED))
{
   说明有SD卡插入
}
 

OnCreate中不设Layout

this.setTheme(R.style.Theme_Transparent);

以下是Theme_Transparent的定义（注意transparent_bg是一副透明的图片）

 

编辑本段 回目录3：在屏幕元素中设置句柄

使用Activity.findViewById来取得屏幕上的元素的句柄. 使用该句柄您可以设置或获取任何该对象外露的值.
TextView msgTextView = (TextView)findViewById(R.id.msg);
   msgTextView.setText(R.string.push_me);
 

            String body=”this is mms demo”;

           Intent mmsintent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(”smsto”, number, null));
           mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body);
           mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, true);
           mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, true);
            startActivity(mmsintent);

 

           StringBuilder sb = new StringBuilder();

            sb.append(”file://”);

            sb.append(fd.getAbsoluteFile());

            Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(”mmsto”, number, null));
            // Below extra datas are all optional.
            intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_SUBJECT, subject);
            intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body);
            intent.putExtra(Messaging.KEY_ACTION_SENDTO_CONTENT_URI, sb.toString());
            intent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, composeMode);
            intent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, exitOnSent);

            startActivity(intent);

 

             mime = “img/jpg”;
            shareIntent.setDataAndType(Uri.fromFile(fd), mime);
            shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(fd));
            shareIntent.putExtra(Intent.EXTRA_SUBJECT, subject);

            shareIntent.putExtra(Intent.EXTRA_TEXT, body);

 

registerReceiver(mMasterResetReciever, new IntentFilter(”OMS.action.MASTERRESET”));

private BroadcastReceiver mMasterResetReciever = new BroadcastReceiver() {

        public void onReceive(Context context, Intent intent){
            String action = intent.getAction();
            if(”oms.action.MASTERRESET”.equals(action)){
                RecoverDefaultConfig();
            }
        }

    };

 

private ContentObserver mDownloadsObserver = new DownloadsChangeObserver(Downloads.CONTENT_URI);

private class DownloadsChangeObserver extends ContentObserver {
        public DownloadsChangeObserver(Uri uri) {
            super(new Handler());

        }

        @Override
        public void onChange(boolean selfChange) {｝ 
        }
  

 

public String getUserAgent()
    {
           String user_agent = ProductProperties.get(ProductProperties.USER_AGENT_KEY, null);
            return user_agent;
    }

 

CookieSyncManager.createInstance(getApplicationContext());
        CookieManager.getInstance().removeAllCookie();

 

   //Dial the GPRS link.
    private boolean openDataConnection() {
        // Set up data connection.
        DataConnection conn = DataConnection.getInstance();    

            if (connectMode == 0) {
                ret = conn.openConnection(mContext, “cmwap”, “cmwap”, “cmwap”);
            } else {
                ret = conn.openConnection(mContext, “cmnet”, “”, “”);
            }

    }

 

public class Setting extends PreferenceActivity

｛

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.settings)；
    }

｝

Setting.xml:

            Android:key=”seting2″
            android:title=”@string/seting2″
            android:summary=”@string/seting2″/>

            android:key=”seting1″
            android:title=”@string/seting1″
            android:summaryOff=”@string/seting1summaryOff”
            android:summaryOn=”@stringseting1summaryOff”/>

 

             DefaultHttpClient httpClient = new DefaultHttpClient();
            HttpGet method = new HttpGet(“http://www.baidu.com/1.html”);
            HttpResponse resp;
            Reader reader = null;
            try {
                // AllClientPNames.TIMEOUT
                HttpParams params = new BasicHttpParams();
                params.setIntParameter(AllClientPNames.CONNECTION_TIMEOUT, 10000);
                httpClient.setParams(params);
                resp = httpClient.execute(method);
                int status = resp.getStatusLine().getStatusCode();

                if (status != HttpStatus.SC_OK) return false;

                // HttpStatus.SC_OK;
                return true;
            } catch (ClientProtocolException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                if (reader != null) try {
                    reader.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }

 

编辑本段 回目录14：显示toast

Toast.makeText(this._getApplicationContext(), R.string._item, Toast.LENGTH_SHORT).show();

编辑本段 回目录9：获得 手机UA

 

 

15. android 彻底关闭应用程序(back按键)

 

@Override  
    public boolean onKeyDown(int keyCode, KeyEvent event) {   
           
        //按下键盘上返回按钮   
        if(keyCode == KeyEvent.KEYCODE_BACK){   
                        finish();   
            return true;   
        }else{         
            return super.onKeyDown(keyCode, event);   
        }   
    }   
    
    
    @Override  
    protected void onDestroy() {   
        super.onDestroy();   
           
        System.exit(0);   
        //或者下面这种方式   
        //android.os.Process.killProcess(android.os.Process.myPid());    
    }  
16.像素设置单位简单了解

Px (pixels)像素, 屏幕上的点
Dip,dp(device independent pixels)依赖于设备的像素, 与密度无关的像素, 一种基于屏幕密度的抽象单位。在每英寸160点的显示器上，1dp = 1px。 dip：与dp相同，多用于Google示例中
Sp(scaled pixels—best for text size)带比例的像素, 与刻度无关的像素）：与dp类似，但是可以根据用户的字体大小首选项进行缩放
Pt(points)点, 1/72英寸
In(inches)英尺, 长度单位
mm(millimeters)毫米,长度单位
其中最常用的是px和dip,尽量使用dp作为空间大小单位，sp作为和文字相关大小单位

17.Android开发UI工具

文章分类:JavaEye

http://code.google.com/p/droiddraw/downloads/list这个地址有所有版本的可以下载;

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/kome2000/archive/2010/07/13/5730981.aspx