我正在尝试做一个应用程序，只要我点击一个按钮，它就会给我添加新的复选框。此外，新的复选框必须取自我已经添加的文本编辑器的名称。有人可以帮我吗？
这是我的 MyAndroidAppActivity
package com.example.myandroidapp;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;
public class MyAndroidAppActivity extends Activity {
private CheckBox chkIos, chkAndroid, chkWindows;
private Button btnDisplay, btn_add;
public final static String EXTRA_MESSAGE = "com.example.myfirstapp.MESSAGE";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
addListenerOnChkIos();
addListenerOnButton();
}
public void addListenerOnChkIos() {
chkIos = (CheckBox) findViewById(R.id.chkIos);
chkIos.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
Toast.makeText(MyAndroidAppActivity.this,
"Bro, try Android :)", Toast.LENGTH_LONG).show();
}
}
});
}
public void addListenerOnButton() {
chkIos = (CheckBox) findViewById(R.id.chkIos);
chkAndroid = (CheckBox) findViewById(R.id.chkAndroid);
chkWindows = (CheckBox) findViewById(R.id.chkWindows);
btnDisplay = (Button) findViewById(R.id.btnDisplay);
btnDisplay.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
StringBuffer result = new StringBuffer();
result.append("IPhone check : ")
.append(chkIos.isChecked());
result.append("\nAndroid check : ").append(
chkAndroid.isChecked());
result.append("\nWindows Mobile check :").append(
chkWindows.isChecked());
Toast.makeText(MyAndroidAppActivity.this, result.toString(),
Toast.LENGTH_LONG).show();
}
});
}
}
这是 main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="@+id/edit_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="@string/edit_message" />
<requestFocus />
<Button
android:id="@+id/btn_add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/button_add" />
<CheckBox
android:id="@+id/chkIos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chk_ios" />
<CheckBox
android:id="@+id/chkAndroid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="@string/chk_android" />
<CheckBox
android:id="@+id/chkWindows"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/chk_windows" />
<Button
android:id="@+id/btnDisplay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn_display" />