如何在Android的活动/屏幕之间切换

本文介绍了如何在Android的活动/屏幕之间切换的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我的第一个活动XM

这是我的第二个活动XML

This is my Second Activity Xml

这是我的第一个Java文件code

this is my first java file code

package com.example.game; import android.media.MediaPlayer; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.widget.Button; public class MainActivity extends Activity { MediaPlayer btnsound; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.front); Button next = (Button) findViewById(R.id.btn1); btnsound = MediaPlayer.create(MainActivity.this,R.raw.game); btnsound.start(); next.setOnClickListener(new OnClickListener() { public void onClick(View v) { Intent nextScreen = new Intent(getApplicationContext(), CopyOfMainActivity.class); startActivity(nextScreen); //finish(); } } ); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

这是我第二次的java文件

this is my Second java file

package com.example.game; import java.util.Random; import android.media.MediaPlayer; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; import android.app.Activity; import android.view.Menu; public class CopyOfMainActivity extends Activity { MediaPlayer btnsound; Random random = new Random(); int randnumber = random.nextInt(10); Button b2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btnsound = MediaPlayer.create(CopyOfMainActivity.this,R.raw.game); btnsound.start(); b2= (Button) findViewById(R.id.btn); b2.setOnClickListener(new OnClickListener() { public void onClick(View v) { EditText input = (EditText)findViewById(R.id.txtedit); TextView resultText = (TextView) findViewById(R.id.txtview2); String inputstring = input.getText().toString(); int number = Integer.parseInt(inputstring); if(randnumber==number) { resultText.setText("you win" ); ImageView image = (ImageView) findViewById(R.id.imageView1); image.setImageResource(R.drawable.win); } else if (number>randnumber) { resultText.setText("you guess high number" ); ImageView image = (ImageView) findViewById(R.id.imageView1); image.setImageResource(R.drawable.tryagain); } else if (number<randnumber) { resultText.setText("you guess low number" ); ImageView image = (ImageView) findViewById(R.id.imageView1); image.setImageResource(R.drawable.lose); } } } ); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } }

我的第一个活动XML布局的一个按钮后，运行应用程序。第一个活动的布局显示，但每当我点击的第一个XML按钮，先想一下，此错误显示在LogCat中选项卡后，去下一个laytout和应用程序停止工作。

I have one button on First Activity xml layout .The first Activity Layout display after run application but whenever i click on button on first xml first want to go on next laytout after clicking then this error show in LogCat tab and application stop working.

AndroidRuntime在dalvik.system.NativeStart.main（本机方法）

AndroidRuntime at dalvik.system.NativeStart.main(Native Method)

我应该怎么办？

推荐答案

请添加两个活动清单文件，如果你错过了。

Please add your both activities to Manifest file if you missed out.

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如何在Android的活动/屏幕之间切换