Question

我刚刚制作了这个应用程序，它在点击按钮时崩溃了...... 不知道为什么...... 到目前为止，如果选择1，则应打印1，如果选择2，则打印2，依此类推。这是main.xml和Activity.java文件。

This is Main.xml file
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/spinnerprompt"
    android:textAppearance="?android:attr/textAppearanceLarge" />

<Spinner
    android:id="@+id/Spinner1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" 
    android:prompt="@string/spinnerprompt" />

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/buttontext" 
    android:onClick="onClick"/>

<FrameLayout
    android:id="@+id/frameLayout1"
    android:layout_width="match_parent"
    android:layout_height="30dp" >
</FrameLayout>

<TextView
    android:id="@+id/versetext"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

And Activity.java file

package arirang.today.proverbs;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;

public class TodaysProverbsActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Spinner Spinner1 = (Spinner) findViewById(R.id.Spinner1);
    ArrayAdapter adapter1 = ArrayAdapter.createFromResource(
            this, R.array.datelist, android.R.layout.simple_spinner_item);
    adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    Spinner1.setAdapter(adapter1);
}

public void onclick(View view){
    Spinner Type;
    String verse = "";
    Type = (Spinner)findViewById(R.id.Spinner1);

    if(Type.getSelectedItem().toString().equals("1")){
        verse = "1";
    }

    if(Type.getSelectedItem().toString().equals("2")){
        verse = "2";
    }

    if(Type.getSelectedItem().toString().equals("3")){
        verse = "3";
    }

    if(Type.getSelectedItem().toString().equals("4")){
        verse = "4";
    }

    if(Type.getSelectedItem().toString().equals("5")){
        verse = "5";
    }

    if(Type.getSelectedItem().toString().equals("6")){
        verse = "6";
    }

    if(Type.getSelectedItem().toString().equals("7")){
        verse = "7";
    }

    if(Type.getSelectedItem().toString().equals("8")){
        verse = "8";
    }

    if(Type.getSelectedItem().toString().equals("9")){
        verse = "9";
    }

    if(Type.getSelectedItem().toString().equals("10")){
        verse = "10";
    }

    if(Type.getSelectedItem().toString().equals("11")){
        verse = "11";
    }

    if(Type.getSelectedItem().toString().equals("12")){
        verse = "12";
    }

    if(Type.getSelectedItem().toString().equals("13")){
        verse = "13";
    }

    if(Type.getSelectedItem().toString().equals("14")){
        verse = "14";
    }

    if(Type.getSelectedItem().toString().equals("15")){
        verse = "15";
    }

    if(Type.getSelectedItem().toString().equals("16")){
        verse = "16";
    }

    if(Type.getSelectedItem().toString().equals("17")){
        verse = "17";
    }

    if(Type.getSelectedItem().toString().equals("18")){
        verse = "18";
    }

    if(Type.getSelectedItem().toString().equals("19")){
        verse = "19";
    }

    if(Type.getSelectedItem().toString().equals("20")){
        verse = "20";
    }

    if(Type.getSelectedItem().toString().equals("21")){
        verse = "21";
    }

    if(Type.getSelectedItem().toString().equals("22")){
        verse = "22";
    }

    if(Type.getSelectedItem().toString().equals("23")){
        verse = "23";
    }

    if(Type.getSelectedItem().toString().equals("24")){
        verse = "24";
    }

    if(Type.getSelectedItem().toString().equals("25")){
        verse = "25";
    }

    if(Type.getSelectedItem().toString().equals("26")){
        verse = "26";
    }

    if(Type.getSelectedItem().toString().equals("27")){
        verse = "27";
    }

    if(Type.getSelectedItem().toString().equals("28")){
        verse = "28";
    }

    if(Type.getSelectedItem().toString().equals("29")){
        verse = "29";
    }

    if(Type.getSelectedItem().toString().equals("30")){
        verse = "30";
    }

    if(Type.getSelectedItem().toString().equals("31")){
        verse = "31";
    }

    TextView AfterBox = (TextView)findViewById(R.id.versetext);
    AfterBox.setText(verse);


}
}

感谢您阅读，这不短...... ^^

Answer 1

请更改您的活动文件的功能名称onClick（查看视图）而不是onclick（查看视图）......

函数名称区分大小写的问题....

应用程序在按钮单击时崩溃

1 个答案: