安卓学习-activity-PreferenceActivity

其他都比较简单，亮度用了一个自定义的PreferenceActivity

配置

xml/setting.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
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    <PreferenceCategory android:title="文本框" >
        <EditTextPreference
            android:key="name"
            android:negativeButtonText="取消"
            android:positiveButtonText="确定"
            android:summary="dd"
            android:title="名字" />
    </PreferenceCategory>
    <PreferenceCategory android:title="选择" >
        <CheckBoxPreference
            android:key="sount1"
            android:summaryOff="关"
            android:summaryOn="开"
            android:title="提示音" />
        <CheckBoxPreference
            android:key="zd"
            android:summaryOff="关"
            android:summaryOn="开"
            android:title="震动" />
    </PreferenceCategory>
    <PreferenceCategory android:title="列表" >
        <ListPreference
            android:dialogTitle="性别"
            android:entries="@array/value1"
            android:entryValues="@array/value1"
            android:key="xb"
            android:title="性别" />

        <MultiSelectListPreference
            android:entries="@array/xq"
            android:entryValues="@array/xq"
            android:key="xq"
            android:summary="请选择"
            android:title="兴趣" />
    </PreferenceCategory>
    <PreferenceCategory android:title="其他" >
        <com.example.fffff.SeekPreference
            android:key="tjld"
            android:summary="版本号0.0.1"
            android:title="调节亮度" />
        <Preference
            android:key="xtsj"
            android:summary="版本号0.0.1"
            android:title="系统升级" />
        <Preference
            android:key="gy"
            android:title="关于" />
    </PreferenceCategory>

</PreferenceScreen>

values/strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">fffff</string>
    <string name="hello_world">Hello world!</string>
    <string-array name="value1">
        <item >男</item>
        <item >女</item>
    </string-array>
    
    <string-array name="xq">
        <item >游泳</item>
        <item >跑步</item>
        <item >吃饭</item>
        <item >喝酒</item>
        <item >逛街</item>
        <item >电脑</item>
        <item >女人</item>
    </string-array>

</resources>

自定义layout  activity_tjld.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" android:padding="15dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="亮度"
            android:textAppearance="?android:attr/textAppearanceMedium" />

        <SeekBar
            android:id="@+id/seekBar1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1" />

    </LinearLayout>

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Small Text"
        android:textAppearance="?android:attr/textAppearanceSmall" />

</LinearLayout>

MainActivity.java

public class MainActivity extends PreferenceActivity implements OnPreferenceChangeListener{


    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //加载设置文件
        addPreferencesFromResource(R.xml.setting); 
        SharedPreferences sp = getPreferenceScreen().getSharedPreferences(); 
        //获取值
        Preference pref1 =findPreference("name");
        pref1.setSummary(sp.getString("name", "请输入")); 
        Preference pref2 =findPreference("xb");
        pref2.setSummary(sp.getString("xb", "请输入")); 
        Preference pref3 =findPreference("xq");
        if(sp.getStringSet("xq",null)!=null){
            pref3.setSummary(sp.getStringSet("xq",null).toString()); 
        }
        
        Preference pref6 =findPreference("tjld");
        //最终会调用onPreferenceChange
        pref6.setSummary(sp.getInt("tjld", 0)+""); 
           

        //设置改变事件
        pref1.setOnPreferenceChangeListener(this);
        pref2.setOnPreferenceChangeListener(this);
        pref3.setOnPreferenceChangeListener(this);
        pref6.setOnPreferenceChangeListener(this);
        
        
        Preference pref4 =findPreference("xtsj");
        pref4.setOnPreferenceClickListener(new OnPreferenceClickListener() {
            public boolean onPreferenceClick(Preference preference) {
                Toast.makeText(MainActivity.this, "升级提示", Toast.LENGTH_SHORT).show();
                return true;
            }
        });
        
        Preference pref5 =findPreference("gy");
        pref5.setOnPreferenceClickListener(new OnPreferenceClickListener() {
            public boolean onPreferenceClick(Preference preference) {
                Toast.makeText(MainActivity.this, "关于", Toast.LENGTH_SHORT).show();
                return true;
            }
        });
    }

    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        preference.setSummary(newValue.toString());                
        return true;
    }

}

SeekPreference.java

public class SeekPreference extends Preference{

    Context context;
    TextView summaryText;
    int index=0;
    
    public SeekPreference(Context context, AttributeSet attrs, int defStyleAttr) {
        
        super(context, attrs, defStyleAttr);
        this.context=context;
    }
    
    public SeekPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        this.context=context;
    }

    public SeekPreference(Context context) {
        super(context);
        this.context=context;
    }
    
    protected void onBindView(View view) {
        summaryText=(TextView)view.findViewById(R.id.textView2);
        summaryText.setText(getSummary());
        SeekBar seekBar=(SeekBar)view.findViewById(R.id.seekBar1);
        seekBar.setProgress(getPersistedInt(0));
        seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
            
            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                // TODO 自动生成的方法存根
            }
            
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                // TODO 自动生成的方法存根
            }
            
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                persistInt(progress);
                //回调change事件
                callChangeListener(progress);
                Toast.makeText(context, progress+"", Toast.LENGTH_SHORT).show();
            }
        });
    }
    
   
    @Override
    protected View onCreateView(ViewGroup parent) {
        return LayoutInflater.from(getContext()).inflate(R.layout.activity_tjld, parent, false);
    }
    
    
}