RadioButton Intent活动 - android

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HEJ!我真的很感激一些帮助。我已经研究过论坛,但似乎无法找到解决方案。我想在选中单选按钮时转到另一个活动(页面),然后单击“提交”。如果选中了另一个RadioButton,那么我想转到另一个活动页面。我被困住了,我无法找到出路。
XML:
【RadioButton Intent活动 - android】

< ?xml version="1.0" encoding="utf-8"?> < ScrollView xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.android.dietchallenge.second"> < RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> < LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> < TextView android:id="@+id/write_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="40sp" android:layout_weight="1" android:layout_margin="20dp"/> < TextView android:id="@+id/summary" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20sp" android:layout_marginBottom="20dp"/> < RadioButton android:id="@+id/radio1" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/vegan" /> < RadioButton android:id="@+id/radio2" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/vege"/> < RadioButton android:id="@+id/radio3" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/gluten"/> < RadioButton android:id="@+id/radio4" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/all" android:onClick="onRadioButtonClicked"/> < Button android:id="@+id/summary1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="20sp" android:layout_marginTop="20dp" android:text="@string/question1_submit" android:onClick="enter"/> < /LinearLayout> < /RelativeLayout> < /ScrollView>


package com.example.android.dietchallenge; import android.content.Intent; import android.content.res.Resources; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.CheckBox; import android.widget.ImageButton; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; import android.widget.Toast; import java.lang.reflect.Array; import java.util.Arrays; public class second extends AppCompatActivity { TextView myMessage; TextView summary; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); String message = getIntent().getStringExtra("message_key"); myMessage = (TextView) findViewById(R.id.write_name); myMessage.setText("Hello " + message + "!"); summary = (TextView) findViewById(R.id.summary); summary.setText("Let's start by figuering out what you like. This is your first question." + " " + "Which is your favourite diet?"); } public void enter(View view) { boolean checked = ((RadioButton) view).isChecked(); // Check which radio button was clicked switch(view.getId()) { case R.id.radio1: if (checked) { Intent page = new Intent(second.this, three.class); startActivity(page); } // Pirates are the best break; case R.id.radio2: if (checked) { Intent page = new Intent(second.this, four.class); startActivity(page); } // Ninjas rule break; } } }

非常感谢你!
答案您尚未在Button上添加点击监听器。
你可以这样做:
onCreate()里面添加点击监听器就像这样。
findViewById(R.id.summary1).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { RadioButton veganRadioButton = (RadioButton) findViewById(R.id.radio1); RadioButton vegeRadioButton = (RadioButton) findViewById(R.id.radio2); if(veganRadioButton.isChecked()) { Intent page = new Intent(second.this, three.class); startActivity(page); } else if(vegeRadioButton.isChecked()) { Intent page = new Intent(second.this, four.class); startActivity(page); } else { //neither radio1 nor radio2 is selected. } } });


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