android学习笔记之Intent

Intent的基本作用

１、Component name 启动的Activity或Service或BroadcastReceiver等的名字

２、Action　指定另一个Activity要做的动作，如果ACTION_CALL、ACTION_EDIT等

３、Data　Uri

４、Category

５、Extras  键值对

６、Flags

 

Intent intent = new Intent();

intent.putExtra(“testIntent”, “123”);  //传值

Intent.setClass(Activity02.this, OtherActivity.class);

Activity02.this.StartActivity(intent);　//启动OtherActivity

 

在OtherActivity中取得

Intent intent = getIntent();

String value = intent.getStringExtra(“testIntent”);

 

启动发短信的Activity

Uri uri = Uri.parse(“smsto://0800000123”);

Intent intent = new Intent(Intent.ACTION_SENDTO, uri);

Intent.putExtra(“sms_body”, “The SMS text”);

startActivity(intent);