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Android Intent传递对象小结
效果:
想看实例的,感兴趣的可以看之前的一篇文章
Android ViewPager Fragment实现选项卡
部分关键代码:
public class SerializeActivity extends Activity implements Serializable { Button btnlist, btnParcelable, btnSerialze; private final String TAG = "SerializeActivity"; public final static String LIST_KEY = "ArrayList"; public final static String PAR_KEY = "parcelable"; public final static String SER_KEY = "serializable"; private static final long serialVersionUID = 1L; private ArrayList<String> m_list; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_serialize); initView(); initlist(); } /* * 初始化视图 */ public void initView() { btnlist = (Button) findViewById(R.id.btnlist); btnParcelable = (Button) findViewById(R.id.btnParcelable); btnSerialze = (Button) findViewById(R.id.btnSerialze); btnlist.setOnClickListener(btnlistener); btnParcelable.setOnClickListener(btnlistener); btnSerialze.setOnClickListener(btnlistener); } public void initlist() { m_list = new ArrayList<String>(); m_list.add("www.88ios.com"); m_list.add("Android移动开发"); m_list.add("IOS开发入门"); } /* * 按钮点击事件 */ OnClickListener btnlistener = new OnClickListener() { public void onClick(View v) { switch (v.getId()) { case R.id.btnlist: intentList(); break; case R.id.btnParcelable: intentParcelabe(); break; case R.id.btnSerialze: intentShowSer(); break; } } }; /* * */ public void intentList() { Intent list_intent = new Intent(); list_intent.putStringArrayListExtra(LIST_KEY, m_list); list_intent.setClass(SerializeActivity.this, ShowInfo.class); startActivity(list_intent); } /* * */ public void intentParcelabe() { Student m_Student = new Student(); m_Student.setName("88ios.com"); m_Student.setAge(25); m_Student.setSex("男"); Intent p_Intent = new Intent(SerializeActivity.this, ShowParcelabe.class); Bundle mBundle = new Bundle(); mBundle.putParcelable(PAR_KEY, m_Student); p_Intent.putExtras(mBundle); startActivity(p_Intent); } /* * */ public void intentShowSer() { final SerializableMap myMap = new SerializableMap(); List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> maplist; Map<String, Object> paramMap4 = new HashMap<String, Object>(); paramMap4.put("name", "洪生鹏"); paramMap4.put("website", "www.88ios.com"); paramMap4.put("address", "广州"); myMap.setMap(paramMap4); SerializableMap serializableMap = (SerializableMap) myMap; maplist = serializableMap.getMap(); list.add(maplist); Intent mIntent = new Intent(SerializeActivity.this, ShowSer.class); Bundle mBundle = new Bundle(); mBundle.putSerializable("map", (Serializable) myMap); //mBundle.putSerializable("map", (Serializable) list); mIntent.putExtras(mBundle); startActivity(mIntent); } }ShowInfo.java
public class ShowInfo extends Activity { private Intent list_intent; private ArrayList<String> m_arrayList; private TextView textview; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_show_info); textview = (TextView) findViewById(R.id.textview); StringBuffer sb = new StringBuffer(); list_intent = getIntent(); m_arrayList = list_intent.getExtras().getStringArrayList( SerializeActivity.LIST_KEY); m_arrayList.get(0); sb.append(m_arrayList.get(0) + " \n" + m_arrayList.get(1) + "\n" + m_arrayList.get(2)); textview.setText(sb); } }
ShowParcelabe.java
public class ShowParcelabe extends Activity { private TextView textview; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_show_parcelabe); textview = (TextView)findViewById(R.id.textview); Student p_student = (Student)getIntent().getParcelableExtra(SerializeActivity.PAR_KEY); textview.setText("姓名: " + p_student.getName()+"\n"+ "年龄: " + p_student.getAge() + "\n" + "性别 : " + p_student.getSex() + "\n" + "类:" + p_student.getClass()); } }
ShowSer.java
public class ShowSer extends Activity { private TextView textview; StringBuilder sb = new StringBuilder(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_show_ser); textview = (TextView)findViewById(R.id.textview); Map<String, Object> maplist; Bundle bundle = getIntent().getExtras(); SerializableMap serializableMap = (SerializableMap) bundle.get("map"); maplist = serializableMap.getMap(); /* for (String k : maplist.keySet()) { Toast.makeText(this, "" + maplist.get(k), Toast.LENGTH_SHORT) .show(); } */ Set set = maplist.entrySet(); Iterator it = set.iterator(); while (it.hasNext()) { Map.Entry entry = (Map.Entry) it.next(); String key = (String) entry.getKey(); String valu = (String) entry.getValue(); sb.append(key+" "+valu+"\n"); } textview.setText(sb); } }
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