关于Android Activity之间传递数据的6种方式

//创建意图对象 Intent intent = new Intent(this,TwoActivity.class); //设置传递键值对 intent.putExtra("data",str); //激活意图 startActivity(intent);

// 获取意图对象 Intent intent = getIntent(); //获取传递的值 String str = intent.getStringExtra("data"); //设置值 tv.setText(str);

//创建意图对象 Intent intent = new Intent(MainActivity.this,TwoActivity.class); //用数据捆传递数据 Bundle bundle = new Bundle(); bundle.putString("data", str); //把数据捆设置改意图 intent.putExtra("bun", bundle); //激活意图 startActivity(intent);

//获取Bundle Intent intent = getIntent(); Bundle bundle = intent.getBundleExtra("bun"); String str = bundle.getString("data"); tv.setText(str);

  Intent intent = new Intent(MainActivity.this,TwoActivity.class);  //用一种特殊方式开启Activity startActivityForResult(intent, 11);//设置数据 protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); String str = data.getStringExtra("data"); tvOne.setText(str);}

//设置返回的数据 Intent intent = new Intent(); intent.putExtra("data", edtOne.getText().toString().trim()); setResult(3, intent); //关闭当前activity finish();

SharedPreferences sp = this.getSharedPreferences("info", 1); //获取sp编辑器 Editor edit = sp.edit(); edit.putString("data", str); edit.commit(); //创建意图对象 Intent intent = new Intent(MainActivity.this,TwoActivity.class); //激活意图 startActivity(intent);

SharedPreferences sp = this.getSharedPreferences("info", 1); //设置数据 tv.setText(sp.getString("data", ""));

import java.io.Serializable;class DataBean implements Serializable { private String name; private String sex; public String getName() { return name; } public void setName(String name) { this.name = name; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; }}

//创建意图 Intent intent = new Intent(MainActivity.this,TwoActivity.class); DataBean bean = new DataBean(); //通过set方法把数据保存到DataBean对象中 bean.setName("啦啦"); bean.setSex("男"); intent.putExtra("key", bean); startActivity(intent);

Intent intent = getIntent(); //反序列化数据对象 Serializable se = intent.getSerializableExtra("key"); if(se instanceof DataBean){  //获取到携带数据的DataBean对象db  DataBean db = (DataBean) se;  tv.setText(db.getName()+"==="+db.getSex()); }

Intent intent = new Intent(MainActivity.this,TwoActivity.class);  TwoActivity.name="牛逼";  TwoActivity.str="你说";  startActivity(intent);

//静态变量protected static String name;protected static String str;tv.setText(str+name);