Android_实现页面跳转（intent的应用）及进阶

Intent intent1 = new Intent(Login.this,DataGetActivity.class);
//new Intent(currentActivity.this,targetActivity.class);
startActivity(intent1);

EditText username = (EditText) findViewById(R.id.username);
//获取目标id

Bundle bundle = new Bundle();
bundle.putString("username", username.getText().toString());
//将目标id的目标信息以键值对的形式存储

Intent intent1 = new Intent(Login.this,DataGetActivity.class);

intent1.putExtras(bundle);
//传入intent
startActivity(intent1);

TextView username = (TextView) findViewById(R.id.usernameInfo);

String data = "";
Bundle extras = getIntent().getExtras();
if(extras != null){
data = extras.getString("username");
}
username.setText(data);