Android-自定义preference和PreferenceFragment实例详解

import android.content.Context; import android.content.SharedPreferences; import android.content.res.TypedArray; import android.graphics.drawable.Drawable; import android.preference.Preference; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.ToggleButton;

import org.fishDroneGCS.android.R;

/** * Created by 符柱成 on 2016/8/2. */ public class VoicePreference extends Preference { private Drawable mIcon; //这里设置了一些属性，是为了方便保存以及设置，关于attrs中的属性一会会给出 boolean ischoose; boolean state_ischoose; ToggleButton toggleButton;

public VoicePreference(Context context, AttributeSet attrs) { this(context, attrs, 0); }

public VoicePreference(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); setLayoutResource(R.layout.item_preference_voice); //从属性文件取出属性配置到我们自己设定的属性 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SwitchBoxPreferenceScreen, defStyle, 0); mIcon = a.getDrawable(R.styleable.SwitchBoxPreferenceScreen_preference_switchbox); //一个选择开关的标记，记录选中与没被选中 ischoose = a.getBoolean(R.styleable.SwitchBoxPreferenceScreen_ischoose,false); a.recycle(); }

@Override public void onBindView(View view) { super.onBindView(view); ImageView imageView = (ImageView) view.findViewById(R.id.item_preference_icon); imageView.setImageDrawable(mIcon); //选择开关的监听 toggleButton=(ToggleButton)view.findViewById(R.id.mTogBtn_voice);

if (showSettingInfo()==true) { toggleButton.setChecked(true); } else { toggleButton.setChecked(false); } toggleButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (showSettingInfo()==false) { toggleButton.setChecked(true); changeData(true); } else { toggleButton.setChecked(false); changeData(false); } } }); }

protected View onCreateView(ViewGroup parent) { return LayoutInflater.from(getContext()).inflate(R.layout.item_preference_voice, parent, false); } //数据保存的逻辑，很简单，就是利用sharepreference来进行读取与存储 private boolean showSettingInfo() { SharedPreferences settings = getContext().getSharedPreferences("state",Context.MODE_PRIVATE); state_ischoose=settings.getBoolean("ischoose",false); return state_ischoose;

}

public void changeData(boolean isUpdate) { SharedPreferences.Editor editor = getContext().getSharedPreferences("state",Context.MODE_PRIVATE).edit(); editor.putBoolean("ischoose", isUpdate); editor.commit(); } }

//那个自定义的PreferenceView一会再给出 private PreferenceView connect; private VoicePreference voice; private PreferenceView broadcast; private PreferenceView accent; private PreferenceView planeSetting; private PreferenceView firmware; private PreferenceView help;

@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //注意为什么要先套一个布局呢？

因为有没有注意到一开始的图片呢，每个preference的分隔线，为什么只在内容那里才有呢？

因为如果不先加这个布局，那么分隔线是布满一整行的。

所以这就是谷歌的设计风格啦！

！

拉拉啦！

布局一会给出 View view = inflater.inflate(R.layout.preference_list, null); addPreferencesFromResource(R.xml.preference); initPreferences(getPreferenceManager()); initListener(); return view; } //很简单就是初始化啦 private void initPreferences(PreferenceManager manager) { connect = (PreferenceView) manager.findPreference("preference_dataConnect"); voice = (VoicePreference) manager.findPreference("preference_voice"); broadcast = (PreferenceView) manager.findPreference("preference_broadcast"); accent = (PreferenceView) manager.findPreference("preference_accent"); planeSetting = (PreferenceView) manager.findPreference("preference_plane"); firmware = (PreferenceView) manager.findPreference("preference_firmware"); help = (PreferenceView) manager.findPreference("preference_help"); } //附送写好了的监听，哈哈 private void initListener() { connect.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { //刚刚没有给出activity调用preferencefragment就在这里给出啦！

！

很简单的一句话。

getFragmentManager().beginTransaction().replace(android.R.id.content, new LinkFragment()).commit();

return false; } }); broadcast.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { return false; } }); accent.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) { return false; } }); planeSetting.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) {

return false; } }); firmware.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) {

return false; } }); help.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() { @Override public boolean onPreferenceClick(Preference preference) {

return false; } }); } }

public class PreferenceView extends Preference {

private static final String TAG = "IconPreferenceScreen";

private Drawable mIcon;

public PreferenceView(Context context, AttributeSet attrs) { this(context, attrs, 0); }

public PreferenceView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); setLayoutResource(R.layout.item_preference_view); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.PreferenceScreen, defStyle, 0); mIcon = a.getDrawable(R.styleable.PreferenceScreen_preference_icon); }

@Override public void onBindView(View view) { super.onBindView(view); ImageView imageView = (ImageView) view.findViewById(R.id.item_preference_icon); if (imageView != null && mIcon != null) { imageView.setImageDrawable(mIcon); } } }