按钮没有按照程序执行的操作

Question

我有2个if语句，如果

modechoiceId == R.id.textmode && sizechoiceId == R.id.normal -- 1

OR

modechoiceId == R.id.animationmode && sizechoieId = R.id.normal -- 2

（1）将使nextButton转到一个新的Activity，即textmode32by32.class和 （2）将使nextButton转到一个新的Activity，即animationmode32by32.class。

现在的问题是，这两个选项都会转到textmode32by32.class的同一页面。

问题出在RadioGroup吗？或者是if语句中的代码吗？

---

startPage.class

package tp.mp2014.dotmatrix;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RadioGroup;

public class startPage extends Activity {

    Button backButton, nextButton;
    RadioGroup modeselection, sizeselection;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.selectionmode);

        nextButton = (Button) findViewById(R.id.nextselection);
        backButton = (Button) findViewById(R.id.backselection);
        modeselection = (RadioGroup) findViewById(R.id.modeselection);
        sizeselection = (RadioGroup) findViewById(R.id.sizeselection);

        int modechoiceId = modeselection.getCheckedRadioButtonId();
        int sizechoiceId = sizeselection.getCheckedRadioButtonId();

        if(modechoiceId == R.id.textmode && sizechoiceId == R.id.normal){

            nextButton.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    Intent nextSelection = new Intent(startPage.this, textmode32by32.class);
                    startActivity(nextSelection);

                }
            });

        }

        else if(modechoiceId == R.id.animationmode && sizechoiceId == R.id.normal){

            nextButton.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    Intent nextSelection1 = new Intent(startPage.this, animationmode32by32.class);
                    startActivity(nextSelection1);

                }
            });

        }

        backButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                Intent backSelection = new Intent(startPage.this, MainActivity.class);
                startActivity(backSelection);

            }
        });




    }

}

animationmode32by32.class

package tp.mp2014.dotmatrix;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class animationmode32by32 extends Activity {

    Button nextBtn, backBtn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.animationmode32by32);

        backBtn = (Button) findViewById(R.id.backBtn2);

        backBtn.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent backSelection = new Intent(animationmode32by32.this, startPage.class);
                startActivity(backSelection);

            }
        });

    }

}

textmode32by32.class

package tp.mp2014.dotmatrix;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.SeekBar;

public class textmode32by32 extends Activity {

    Button nextBtn, backBtn;
    RadioButton left, stagnant, right;
    SeekBar scrollspeed;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
    setContentView(R.layout.textmode32by32);

    backBtn = (Button) findViewById(R.id.backBtn1);

    backBtn.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            Intent backBtn = new Intent(textmode32by32.this, startPage.class);
            startActivity(backBtn);

        }
    });



    }



}

selectionmode.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:id="@+id/LinearLayout1H"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/textmodeselection"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/textmodeselection"
            android:textAppearance="?android:attr/textAppearanceMedium" />

        <TextView
            android:id="@+id/textsizeselection"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="50dp"
            android:text="@string/textsizeselection"
            android:textAppearance="?android:attr/textAppearanceMedium" />

    </LinearLayout>

    <RadioGroup
        android:id="@+id/sizeselection"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/modeselection"
        android:layout_toRightOf="@+id/modeselection" >

        <RadioButton
            android:id="@+id/normal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="@string/sizechoice1" />

        <RadioButton
            android:id="@+id/extended"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/sizechoice2" />
    </RadioGroup>

    <RadioGroup
        android:id="@+id/modeselection"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/LinearLayout1H" >

        <RadioButton
            android:id="@+id/textmode"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="@string/modechoice1" />

        <RadioButton
            android:id="@+id/animationmode"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/modechoice2" />

        <RadioButton
            android:id="@+id/imagemode"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/modechoice3" />
    </RadioGroup>

    <Button
        android:id="@+id/backselection"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:text="@string/back" />

    <Button
        android:id="@+id/nextselection"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:text="@string/next" />

</RelativeLayout>

Answer 1

试试这个，

nextButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {

            int modechoiceId = modeselection.getCheckedRadioButtonId();
            int sizechoiceId = sizeselection.getCheckedRadioButtonId();
            if (modechoiceId == R.id.textmode
                    && sizechoiceId == R.id.normal) {

                //first
            } else if (modechoiceId == R.id.animationmode
                    && sizechoiceId == R.id.normal) {

                //second activity
            }

        }
    });

Answer 2

问题是当startPage活动开始时，它会将按钮监听器设置为直接点击if(modechoiceId == R.id.textmode && sizechoiceId == R.id.normal)

<强>为什么???

因为每次检查另一个单选按钮时都不会更改它..

<强>溶液

将单选按钮的检查放在onclick监听器

中

改变这一点：

if(modechoiceId == R.id.textmode && sizechoiceId == R.id.normal){

        nextButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent nextSelection = new Intent(startPage.this, textmode32by32.class);
                startActivity(nextSelection);

            }
        });

    }

    else if(modechoiceId == R.id.animationmode && sizechoiceId == R.id.normal){

        nextButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent nextSelection1 = new Intent(startPage.this, animationmode32by32.class);
                startActivity(nextSelection1);

            }
        });

    }

以

 nextButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                int modechoiceId = modeselection.getCheckedRadioButtonId();
                int sizechoiceId = sizeselection.getCheckedRadioButtonId();

                if(modechoiceId == R.id.textmode && sizechoiceId == R.id.normal){

                   Intent nextSelection1 = new Intent(startPage.this, animationmode32by32.class);
                   startActivity(nextSelection1);

        }

                else if(modechoiceId == R.id.animationmode && sizechoiceId == R.id.normal){

                    Intent backSelection = new Intent(startPage.this, MainActivity.class);
            startActivity(backSelection);
}
                }
            });