1、显示跳转
Intent intent=new Intent();
intent.setClass(MainActivity6.this, MainActivity6son1.class);
startActivity(intent);
2、隐式跳转
Intent intent=new Intent();
intent.setAction("aaa.bbb.ccc.ddd");
startActivity(intent);
manifest里需添加action
<activity android:name=".sonActivities.MainActivity6son1">
<intent-filter>
<action android:name="aaa.bbb.ccc.ddd" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
3、简单的传值
发起者:
Intent intent=new Intent(MainActivity6.this,MainActivity6son1.class);
if(!editText.getText().toString().trim().equals("")){
intent.putExtra("info",editText.getText().toString().trim());//通过putExtra传递
}
startActivity(intent);
接收者:
String info=getIntent().getStringExtra("info");
4、通过bundle传值
传递:
Intent intent = new Intent();
Bundle bundle=new Bundle();
bundle.putString("table_id",this.getIntent().getStringExtra("table_id"));
bundle.putString("table_no",this.getIntent().getExtras().getString("table_no"));
bundle.putSerializable("listSelectFoods", (Serializable) listSelectFoods);
intent.putExtras(bundle); //把Bundle放进intent中
intent.setClass(OrderMealAty2.this, ConfirmOrderMealAty.class);
startActivity(intent);
接收:
Bundle bundle=this.getIntent().getExtras();
String table_id =bundle.getString("table_id");
String table_no = bundle.getString("table_no");
List<FoodByMenu> listSelectFoods= bundle.getSerializable("listSelectFoods");
5、跳转到网站
Uri uri=Uri.parse("http://www.baidu.com");
Intent intent=new Intent(Intent.ACTION_VIEW,uri);
//intent.setAction("android.intent.action.VIEW");
startActivity(intent);
6、数据回传
传输数据:startActivityForResult(intent,传递的请求数字自定义)
Intent intent = new Intent(MainActivity6.this, MainActivity6son1.class);
intent.putExtra("hello", "你好吗?");
startActivityForResult(intent, 1000);
start的activity需要添加这个方法,用来接收返回数据:
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==1000 && resultCode==1001){
Toast.makeText(this, "数据返还:" + data.getStringExtra("back"), Toast.LENGTH_SHORT).show();
}
}
接收与回传:setResult(回传的数字自定义,intent)
Intent intent=new Intent(MainActivity6son1.this, MainActivity6.class);
intent.putExtra("back","返还数据!!!");
setResult(1001,intent);
finish();