Android页面跳转和传参

Android页面跳转和传参

第一种方式

页面一

<?xml version="1.0" encoding="utf-8"?>
&straintlayout.widget.ConstraintLayout xmlns:android=""xmlns:app=""xmlns:tools=""android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><Buttonandroid:id="@+id/button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginStart="58dp"android:layout_marginTop="156dp"android:text="跳转页面"android:onClick="goset"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="parent" /><TextViewandroid:id="@+id/textView"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="第一个页面"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="parent" />
</straintlayout.widget.ConstraintLayout>

页面二

<?xml version="1.0" encoding="utf-8"?>
&straintlayout.widget.ConstraintLayout xmlns:android=""xmlns:app=""xmlns:tools=""android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity2"></straintlayout.widget.ConstraintLayout>

页面一代码

application;import androidx.appcompat.app.AppCompatActivity;t.Intent;
import android.os.Bundle;
import android.view.View;public class MainActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {Create(savedInstanceState);setContentView(R.layout.activity_main);}public  void goset(View v){//Intent设置要跳转的页面Intent intent=new Intent(this,MainActivity2.class);intent.putExtra("MyData","陈海龙帅");//传参 键值startActivity(intent);//跳转}
}

页面二代码

application;import androidx.appcompat.app.AppCompatActivity;t.Intent;
import android.os.Bundle;
import android.widget.Toast;public class MainActivity2 extends AppCompatActivity {private  String Data;@Overrideprotected void onCreate(Bundle savedInstanceState) {Create(savedInstanceState);setContentView(R.layout.activity_main2);Intent i&#Intent();Data&#StringExtra("MyData");Toast.makeText(this,"收到数据"+Data,0).show();}
}

第二种 传参一组数据

页面和方法一样

页面一代码

application;import androidx.appcompat.app.AppCompatActivity;t.Intent;
import android.os.Bundle;
import android.view.View;public class MainActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {Create(savedInstanceState);setContentView(R.layout.activity_main);}public  void goset(View v){Intent intent=new Intent(this,MainActivity2.class);Bundle bundle=new Bundle();bundle.putString("MyData","陈海龙帅");bundle.putInt("ID",100);intent.putExtras(bundle);startActivity(intent);}
}

页面二代码

application;import androidx.appcompat.app.AppCompatActivity;t.Intent;
import android.os.Bundle;
import android.widget.Toast;public class MainActivity2 extends AppCompatActivity {protected void onCreate(Bundle savedInstanceState) {Create(savedInstanceState);setContentView(R.layout.activity_main2);Intent i&#Intent();Bundle b&#Extras();String Data= b.getString("MyData");int Data2&#Int("ID");Toast.makeText(this,"收到数据"+Data+Data2,0).show();}
}