mainActivity 打开 OtherActivity:
Intent intent = new Intent(getApplicationContext(), OtherActivity.class);
startActivity(intent);
startActivity(intent);
mainActivity 给 OtherActivity 传参数:
Intent intent = new Intent(getApplicationContext(), OtherActivity.class);
//以下二个为OtherActivity传参数
intent.putExtra("Name", "eboy");
intent.putExtra("Age", 22);
//也可以使用Bundle来传参数
Bundle bundle = new Bundle();
bundle.putString("Name1", "eboy1");
bundle.putInt("Age1", 23);
intent.putExtras(bundle);
startActivity(intent);
//以下二个为OtherActivity传参数
intent.putExtra("Name", "eboy");
intent.putExtra("Age", 22);
//也可以使用Bundle来传参数
Bundle bundle = new Bundle();
bundle.putString("Name1", "eboy1");
bundle.putInt("Age1", 23);
intent.putExtras(bundle);
startActivity(intent);
OtherActivity 接收来自 mainActivity 的参数:
Intent intent = getIntent(); //用于激活它的意图对象
String Name = intent.getStringExtra("Name");
int Age = intent.getIntExtra("Age", 0);
Bundle bundle = intent.getExtras();
String Name1 = bundle.getString("Name1");
int Age1 = bundle.getInt("Age1");
TextView textView = (TextView)this.findViewById(R.id.OtherTextView);
textView.setText(Name + " : " + Age + "/" + Name1 + " : " + Age1);
String Name = intent.getStringExtra("Name");
int Age = intent.getIntExtra("Age", 0);
Bundle bundle = intent.getExtras();
String Name1 = bundle.getString("Name1");
int Age1 = bundle.getInt("Age1");
TextView textView = (TextView)this.findViewById(R.id.OtherTextView);
textView.setText(Name + " : " + Age + "/" + Name1 + " : " + Age1);
如果mainActivity 需要 OtherActivity关闭时返回一些值,则可使用 startActivityForResult来打开OtherActivity,具体用法以后用到时再了解。