//創建意圖對象 Intent intent = new Intent(this,TwoActivity.class); //設置傳遞鍵值對 intent.putExtra("data",str); //激活意圖 startActivity(intent);

// 獲取意圖對象 Intent intent = getIntent(); //獲取傳遞的值 String str = intent.getStringExtra("data"); //設置值 tv.setText(str);

//創建意圖對象 Intent intent = new Intent(MainActivity.this,TwoActivity.class); //用數據捆傳遞數據 Bundle bundle = new Bundle(); bundle.putString("data", str); //把數據捆設置改意圖 intent.putExtra("bun", bundle); //激活意圖 startActivity(intent);

//獲取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);  //用一種特殊方式開啟Activity startActivityForResult(intent, 11);//設置數據 protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); String str = data.getStringExtra("data"); tvOne.setText(str);}

//設置返回的數據 Intent intent = new Intent(); intent.putExtra("data", edtOne.getText().toString().trim()); setResult(3, intent); //關閉當前activity finish();

SharedPreferences sp = this.getSharedPreferences("info", 1); //獲取sp編輯器 Editor edit = sp.edit(); edit.putString("data", str); edit.commit(); //創建意圖對象 Intent intent = new Intent(MainActivity.this,TwoActivity.class); //激活意圖 startActivity(intent);

SharedPreferences sp = this.getSharedPreferences("info", 1); //設置數據 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; }}

//創建意圖 Intent intent = new Intent(MainActivity.this,TwoActivity.class); DataBean bean = new DataBean(); //通過set方法把數據保存到DataBean對象中 bean.setName("啦啦"); bean.setSex("男"); intent.putExtra("key", bean); startActivity(intent);

Intent intent = getIntent(); //反序列化數據對象 Serializable se = intent.getSerializableExtra("key"); if(se instanceof DataBean){  //獲取到攜帶數據的DataBean對象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="你說";  startActivity(intent);

//靜態變量protected static String name;protected static String str;tv.setText(str+name);