显示Web网页

Uri uri = Uri.parse("http://www.android123.com.cn");
Intent it = new Intent(Intent.ACTION_VIEW,uri);
startActivity(it);

显示Google地图

Uri uri = Uri.parse("geo:38.899533,-77.036476");
Intent it = new Intent(Intent.Action_VIEW,uri);
startActivity(it);

Maps路径规划

Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
Intent it = new Intent(Intent.ACTION_VIEW,URI);
startActivity(it);

拨打电话

Uri uri = Uri.parse("tel:xxxxxx");
Intent it = new Intent(Intent.ACTION_DIAL, uri);   
startActivity(it);  

Uri uri = Uri.parse("tel.xxxxxx");
Intent it =new Intent(Intent.ACTION_CALL,uri);

注意需要权限android.permission.CALL_PHONE

发送SMS/MMS

Intent it = new Intent(Intent.ACTION_VIEW);
it.putExtra("sms_body", "android开发网欢迎您");
it.setType("vnd.android-dir/mms-sms");
startActivity(it);  

发送短信

Uri uri = Uri.parse("smsto:10086");
Intent it = new Intent(Intent.ACTION_SENDTO, uri);
it.putExtra("sms_body", "10086"); //正文为10086
startActivity(it);  

发送彩信

Uri uri = Uri.parse("content://media/external/images/media/10"); //该Uri根据实际情况修改,external代表外部存储即sdcard
Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra("sms_body", "android123.com.cn"); 
it.putExtra(Intent.EXTRA_STREAM, uri);
it.setType("image/png");
startActivity(it);

发送Email

Uri uri = Uri.parse("mailto:android123@163.com");
Intent it = new Intent(Intent.ACTION_SENDTO, uri);
startActivity(it);

Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra(Intent.EXTRA_EMAIL, "android123@163.com");
it.putExtra(Intent.EXTRA_TEXT, "android开发网测试");
it.setType("text/plain");
startActivity(Intent.createChooser(it, "选择一个Email客户端"));  

Intent it=new Intent(Intent.ACTION_SEND);   
String[] tos={"android123@163.com"};     //发送到 
String[] ccs={"ophone123@163.com"};    //抄送
it.putExtra(Intent.EXTRA_EMAIL, tos);   
it.putExtra(Intent.EXTRA_CC, ccs);   
it.putExtra(Intent.EXTRA_TEXT, "正文");   
it.putExtra(Intent.EXTRA_SUBJECT, "标题");   
it.setType("message/rfc822");    //编码类型
startActivity(Intent.createChooser(it, "选择一个Email客户端"));

Email添加附件

Intent it = new Intent(Intent.ACTION_SEND);
it.putExtra(Intent.EXTRA_SUBJECT, "正文");
it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/nobody.mp3"); //附件为sd卡上的nobody MP3文件
sendIntent.setType("audio/mp3");
startActivity(Intent.createChooser(it, "选择一个Email客户端"));

播放多媒体

Intent it = new Intent(Intent.ACTION_VIEW);
Uri uri = Uri.parse("file:///sdcard/nobody.mp3");
it.setDataAndType(uri, "audio/mp3");
startActivity(it);

Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1"); //从系统内部的MediaProvider索引中调用播放
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);  

Uninstall卸载程序

Uri uri = Uri.fromParts("package", packageName, null); //packageName为包名,比如com.android123.apkInstaller
Intent it = new Intent(Intent.ACTION_DELETE, uri);
startActivity(it);

进入联系人界面

Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(People.CONTENT_URI);
startActivity(intent);

查看某个联系人,当然这里是ACTION_VIEW,如果为选择并返回action改为ACTION_PICK,当然处理intent时返回需要用到startActivityforResult

Uri personUri = ContentUris.withAppendedId(People.CONTENT_URI, ID);//最后的ID参数为联系人Provider中的数据库BaseID,即哪一行
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(personUri);
startActivity(intent);

选择一个图片

Intent intent = new Intent(Intent.ACTION_GET_CONTENT);  
intent.addCategory(Intent.CATEGORY_OPENABLE);  
intent.setType("image/*");//此处->audio/*对应选择音频 video/*对应选择视频
startActivityForResult(intent, 0);

调用Android设备的照相机,并设置拍照后存放位置

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);  
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/cwj", android123 + ".jpg"))); //存放位置为sdcard卡上cwj文件夹,文件名为android123.jpg格式
startActivityForResult(intent, 0);

搜索指定package name在market上

Uri uri = Uri.parse("market://search?q=pname:com.android123.cwj");   
Intent intent = new Intent(Intent.ACTION_VIEW, uri);   
startActivity(intent);