相关疑难解决方法(0)

当我点击按钮时,它只显示白色屏幕而不是下一个活动的视图.我找不到为什么会发生请给我解决方案......我的整个代码就在这里

ActivityMain.java

package com.rahul.intentswitchingwithdata;

import android.content.Intent; 
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
   }
   public void go(View v){
         Intent i= new Intent(this,Next.class);
         startActivity(i);}
 }

activity_main.xml中

<?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/activity_main"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      tools:context="com.rahul.intentswitchingwithdata.MainActivity">

      <TextView
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="Hello World!" />
      <Button
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:onClick="go"/>
</RelativeLayout>

Next.java

public class Next extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState, PersistableBundle 
    persistentState) {       
    super.onCreate(savedInstanceState, persistentState);
    setContentView(R.layout.next);
   }
}

next.xml …