android之Uri的常用幾個例子
Uri
通用資源標誌符（Universal Resource Identifier, 簡稱"URI"）。
Uri代表要操作的數據，Android上可用的每種資源 - 圖像、視頻片段等都可以用Uri來表示。
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
// 處理掃描結果（在界面上顯示）
if (resultCode == Activity.RESULT_OK) {
Bundle bundle = data.getExtras();
String scanResult = bundle.getString("result");
// TODO 處理掃描結果
Toast.makeText(this, scanResult, Toast.LENGTH_LONG).show();
if (scanResult.indexOf("http//") != -1) {
Uri uri = Uri.parse(scanResult);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
}
}
撥打電話:
1. //叫出撥號程序
2. Uri uri = Uri.parse("tel:0800000123");
3. Intent it = new Intent(Intent.ACTION_DIAL, uri);
4. startActivity(it);
1. //直接打電話出去
2. Uri uri = Uri.parse("tel:0800000123");
3. Intent it = new Intent(Intent.ACTION_CALL, uri);
4. startActivity(it);
5. 要使用這個必須在配置文件中加入<uses-permission id="Android.permission.CALL_PHONE" />
//調用相冊
public static final String MIME_TYPE_IMAGE_JPEG = "image/*";
public static final int ACTIVITY_GET_IMAGE = 0;
Intent getImage = new Intent(Intent.ACTION_GET_CONTENT);
getImage.addCategory(Intent.CATEGORY_OPENABLE);
getImage.setType(MIME_TYPE_IMAGE_JPEG);
startActivityForResult(getImage, ACTIVITY_GET_IMAGE);
//調用系統相機應用程序，並存儲拍下來的照片
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
time = Calendar.getInstance().getTimeInMillis();
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment
.getExternalStorageDirectory().getAbsolutePath()+"/tucue", time + ".jpg")));
startActivityForResult(intent, ACTIVITY_GET_CAMERA_IMAGE);
顯示網頁:
1. Uri uri = Uri.parse("http://www.google.com");
2. Intent it = new Intent(Intent.ACTION_VIEW,uri);
3. startActivity(it);
顯示地圖:
1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
2. Intent it = new Intent(Intent.Action_VIEW,uri);
3. startActivity(it);
路徑規劃:
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);
發送SMS/MMS
調用發送短信的程序
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);
發送短信
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);
發送彩信
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);
發送Email
1.
2. Uri uri = Uri.parse("mailto:[email protected]");
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, "[email protected]");
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={"[email protected]"};
3. String[] ccs={"[email protected]"};
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, "[url=]file:///sdcard/mysong.mp3[/url]");
4. sendIntent.setType("audio/mp3");
5. startActivity(Intent.createChooser(it, "Choose Email Client"));
播放多媒體
1.
2. Intent it = new Intent(Intent.ACTION_VIEW);
3. Uri uri = Uri.parse("[url=]file:///sdcard/song.mp3[/url]");
4. it.setDataAndType(uri, "audio/mp3");
5. startActivity(it);
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
/**未測試
Uri uninstallUri = Uri.fromParts("package", "xxx", null);
returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
*/
Uri packageURI = Uri.parse("package:"+wistatmap);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
startActivity(uninstallIntent);
install apk
Uri installUri = Uri.fromParts("package", "xxx", null);
returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
play audio
Uri playUri = Uri.parse("[url=]file:///sdcard/download/everything.mp3[/url]");
returnIt = new Intent(Intent.ACTION_VIEW, playUri);
//發送附件
Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
it.putExtra(Intent.EXTRA_STREAM, "[url=]file:///sdcard/eoe.mp3[/url]");
sendIntent.setType("audio/mp3");
startActivity(Intent.createChooser(it, "Choose Email Client"));
//搜索應用
Uri uri = Uri.parse("market://search?q=pname:pkg_name");
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
//where pkg_name is the full package path for an application
//進入聯繫人頁面
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(People.CONTENT_URI);
startActivity(intent);
//查看指定聯繫人
Uri personUri = ContentUris.withAppendedId(People.CONTENT_URI, info.id);//info.id聯繫人ID
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(personUri);
startActivity(intent);
IntentFilter
簡述：結構化描述intent匹配的信息。包含：action，categories and data(via type,scheme ,path),還有priority, to order multiple matching filters.
IntentFilter 中如果action爲空，則視爲通配符，如果type爲空，則intent必須不設type，否則匹配不上。
data被分爲3個屬性：type,scheme,authority/path 任何設置的屬性intent必須匹配上。
設置了scheme 而沒設type,則intent也必須類似，不能設置type，也不能是content: URI.
設置了type而沒設scheme：將匹配上沒有URI的intent，或者content:,file:的uri。
設置了authority:必須指定一個或多個相關聯的schemes
設置了path：唏噓指定一個或多個相關聯的schemes
匹配規則：
IntentFilter 匹配Intent的上的條件：
Action : 值相同 ,或則IntentFilter未指定action.
DataType:. 系統通過調用Intent.resolve(ContentResolver)獲取type，通配符*
在Intent/IntentFilter的MIME type中使用，區分大小寫
DataScheme：系統通過調用Intent. getData() and Uri.getScheme())獲取scheme, 區分大小寫
DataAuthority:必須有一個dataScheme匹配上且authority值匹配上，或者IntentFilter沒有定義。Intent. getData() and Uri.getAuthority()獲取authority.
DataPath: scheme and authority必須先匹配上 ntent. getData() and Uri.getPath（），獲取. 或者IntentFilter沒有定義
Categories：all of the categories in the Intent match categories given in the filter 多餘的Categorie，不影響intent匹配，如果IntentFilter
沒有指定Categorie，則只能匹配上沒有Categorie的intent。
常用intent列表：
Android Intent 用法彙總
顯示網頁
- <activity android:name="BrowserActivity" android:label="Browser" android:launchMode="singleTask" android:alwaysRetainTaskState="true" android:configChanges="orientation|keyboardHidden" android:theme="@style/BrowserTheme">
- <!--
For these schemes were not particular MIME type has been
supplied, we are a good candidate.
-->
- <intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="http" />
<data android:scheme="https" />
<data android:scheme="about" />
</intent-filter>
- <!--
For these schemes where any of these particular MIME types
have been supplied, we are a good candidate.
-->
- <intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="http" />
<data android:scheme="https" />
<data android:mimeType="text/html" />
<data android:mimeType="text/plain" />
<data android:mimeType="application/xhtml+xml" />
<data android:mimeType="application/vnd.wap.xhtml+xml" />
</intent-filter>
- <!--
We are also the main entry point of the browser.
-->
- <intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.BROWSABLE" />
</intent-filter>
- <intent-filter>
<action android:name="android.intent.action.WEB_SEARCH" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="" />
<data android:scheme="http" />
<data android:scheme="https" />
</intent-filter>
- <intent-filter>
<action android:name="android.intent.action.WEB_SEARCH" />
<action android:name="android.intent.action.MEDIA_SEARCH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
- <intent-filter>
<action android:name="android.intent.action.SEARCH" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<meta-data android:name="android.app.searchable" android:resource="@xml/searchable" />
- <intent-filter>
<action android:name="android.net.http.NETWORK_STATE" />
<action android:name="android.intent.action.PROXY_CHANGE" />
</intent-filter>
</activity>
1. Uri uri = Uri.parse("http://google.com");
2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
3. startActivity(it);
顯示地圖
1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
2. Intent it = new Intent(Intent.ACTION_VIEW, uri);
3. startActivity(it);
4. //其他 geo URI 範例
5. //geo:latitude,longitude
6. //geo:latitude,longitude?z=zoom
7. //geo:0,0?q=my+street+address
8. //geo:0,0?q=business+near+city
9. //google.streetview:cbll=lat,lng&cbp=1,yaw,,pitch,zoom&mz=mapZoom