intent的常用方法.doc

Intent在Android中的几种用法如果是从BroadcastReceiver 启动一个新的Activity ,不要忘记i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); public class MyReceiver extends BroadcastReceiver public static final String action=acc;public void onReceive(Context context, Intent intent) Intent i=new Intent(context,Receivered.class);i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);context.startActivity(i); 1. 指定act ion 和type / SIM import Intent importIntent = new Intent(Intent.ACTION_VIEW); importIntent.setType(vnd.android.cursor.item/sim-contact); importIntent.setClassName(com.android.phone, com.android.phone.SimContacts); menu.add(0, 0, 0, R.string.importFromSim) .setIcon(R.drawable.ic_menu_import_contact) .setIntent(importIntent); 2. 指定action, data和type (1)隐式查找type示例代码：uri: content:/simcontacts/simPeople/(id)intent = new Intent(ent.action.SIMEDIT,uri); startActivity(intent);程序会很据data中的uri去查找匹配的type（必须的） provider中的getType() case SIM_PEOPLE_ID: return vnd.android.cursor.item/sim-contact; 配置文件中的filter设定 AndroidManifest.xml 也可以自己设定type，但只能使用 setDataAndType() 3. 其他设定intent的属性方式 Intent setComponent(ComponentName component) Intent setClassName(Context packageContext, String className) Intent setClassName(String packageName, String className) Intent setClass(Context packageContext, Class cls)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。下面列出几种Intent 的用法显示网页: 1. Uri uri = Uri.parse(); 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(/maps?f=dsaddr=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 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:); 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, ); 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=; 3. String ccs=; 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 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); 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); 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