我是新手。
在应用中使用导航栏、 fragment 。
文件说明:
fragment_settings.xml:包含单选按钮组
SettingsFragment.java: 主要用于在抽屉导航中单击“设置”时显示 fragment_settings.xml。我检查了不同的
MainFragment.java:这里,我想使用RadioButton id,它被点击进入switch case,然后执行相应的操作。
但问题是控制权在开关中而不是在案例中,我尝试通过放置 toast 但 id 与任何案例都不匹配。
fragment_settings.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context="com.threefriends.filecrypto.SettingsFragment">
<!-- TODO: Update blank fragment layout -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/textview2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Choose algorithm:"
android:textSize="18dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="71dp"
/>
<RadioGroup
android:id="@+id/radioAlgorithms"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<RadioButton
android:id="@+id/radioaes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AES (Default)"
android:checked="true"
android:layout_marginLeft="5dp"
/>
<RadioButton
android:id="@+id/radiodes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="DES"
android:layout_marginLeft="5dp"
/>
<RadioButton
android:id="@+id/radioidea"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="IDEA"
android:layout_marginLeft="5dp"
/>
<RadioButton
android:id="@+id/radiocustom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Custom"
android:layout_marginLeft="5dp"
/>
</RadioGroup>
</LinearLayout>
</FrameLayout>
SettingsFragment.java
package com.threefriends.filecrypto;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;
public class SettingsFragment extends Fragment
{
public SettingsFragment() {
// Required empty public constructor
}
RadioGroup radiogroup;
RadioButton aes, des, idea, custom;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View view=inflater.inflate(R.layout.fragment_settings, container, false);
// Inflate the layout for this fragment
//return inflater.inflate(R.layout.fragment_settings, container, false);
return view;
}
}
MainFragment.java
public class MainFragment extends Fragment {
SettingsFragment settingsfragment;
//Defined for file edittext.
EditText editText2;
public MainFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_main, container, false);
});
final int id = ((RadioGroup)view.findViewById(R.id.radioAlgorithms)).getCheckedRadioButtonId();
final Button b2 = (Button) view.findViewById(R.id.encb); //Encrypt Button
Button b3 = (Button) view.findViewById(R.id.decb); //Decrypt Button
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(getActivity().getApplicationContext(), "Starting..."+R.id.radioAlgorithms, Toast.LENGTH_SHORT).show();
// click related code goes here
switch(id) //This id is not matching to any case.
{
case R.id.radioaes: {
//Code for aes algorithm.
break;
case R.id.radiodes: {
//Code for des algorithm.
break;
}
case R.id.radioidea: {
//Code for idea algorithm.
break;
}
case R.id.radiocustom: {
//My custom algorithm code.
break;
}
}
}
});
最佳答案
这应该适合你
final RadioGroup group= (RadioGroup) findViewById(R.id.radioAlgorithms);
group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
int id = group.getCheckedRadioButtonId();
switch (id) {
case R.id.radioaes:
// Your code
break;
case R.id.radiodes:
// Your code
break;
case R.id.radioidea:
// Your code
break;
case R.id.radiocustom:
// Your code
break;
default:
// Your code
break;
}
}
});
希望这对您有所帮助。
关于java - 如何在 Android 中使用单选按钮组 ID 在不同 fragment 之间进行切换,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38094400/