Android Intent指南.docVIP

Android Intent指南 一、Intent的几种用法 Intent是Android中特有的东西。你可以在Intent中指定程序要执行的动作（如viewedit、dial），以及程序执行到该动作时所需要的。都指定好后，只要调用startActivity()，Android系统会自动寻找最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: Uri uri = Uri.parse(); Intent it = new Intent(Intent.ACTION_VIEW,uri); startActivity(it); 显示地图: Uri uri = Uri.parse(geo:38.899533,-77.036476); Intent it = new Intent(Intent.Action_VIEW,uri); startActivity(it); 路径规划: Uri uri = Uri.parse(/maps?f=dsaddr=startLat%20+ startLngdaddr=endLat%20endLnghl=en); Intent it = new Intent(Intent.ACTION_VIEW,URI); startActivity(it); 拨打电话: 调用拨号程序 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); 要使用这个必须在配置文件中加入uses-permission id=android.permission.CALL_PHONE / 发送SMS/MMS: 调用发送短信的程序 Intent it = new Intent(Intent.ACTION_VIEW); it.putExtra(sms_body, The SMS text); it.setType(vnd.android-dir/mms-sms); startActivity(it); 发送短信 Uri uri = Uri.parse(smsto:0800000123); Intent it = new Intent(Intent.ACTION_SENDTO, uri); it.putExtra(sms_body, The SMS text); startActivity(it); 发送彩信 Uri uri = Uri.parse(content://media/external/images/media/23); Intent it = new Intent(Intent.ACTION_SEND); it.putExtra(sms_body, some text); it.putExtra(Intent.EXTRA_STREAM, uri); it.setType(image/png); startActivity(it); 发送Email: Uri uri = Uri.parse(mailto:xxx@); Intent it = new Intent(Intent.ACTION_SENDTO, uri); startActivity(it); Intent it = new Intent(Intent.ACTION_SEND); it.putExtra(Intent.EXTRA_EMAIL, me@); it.putExtra(Intent.EXTRA_TEXT, The email body text); it.setType(text/plain); startActivity(Intent.createChooser(it, Choose Email Client)); Intent it=new Intent(Intent.ACTION_SEND); String[] tos={me@}; String[] ccs={you@}; it.putExtra(Intent.EXTRA_EMAIL, tos); it.putExtra(Intent.EXTRA_CC, ccs); it.putExtra(Intent.EXTRA_TEXT, The email body text); it.putExtra(Intent.EXTRA_SUBJECT, The email subject text);