custom a switch

‘cuz the switch android provides is in solid height. it’s too narrow to contain my texton/off.
I work out a solution building a custom switch.

there are three steps：
1/ prepare a xml (a relative layout and a textview which will slide)
2/ write a class to control the xml layout.
3/ include this class to other layout where you want to place.

details:

1/ customswitch.xml –which is include in singletest.xml layout.

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="150dp"android:layout_height="60dp"android:background="@drawable/button_pressed">    <TextView        android:id="@+id/slidetext"        android:layout_width="75dp"        android:layout_height="60dp"        android:background="#009cc2"        android:textColor="#ffffff"        android:textSize="25sp"        android:gravity="center"        /></RelativeLayout>

2/ SingleTest.java (class

public class SingleTest extends LinearLayout {    private TextView tv;    private boolean switch_on;    private RelativeLayout.LayoutParams params_left,params_right;    private String texton,textoff;    private DatePicker datePicker;    private TimePicker timePicker;    public SingleTest(Context context, AttributeSet attr) {        super(context,attr);//        LayoutInflater.from(context).inflate(R.layout.singletest, this);        View view = inflate(context,R.layout.singletest,this);        tv = (TextView) findViewById(R.id.slidetext);        datePicker = (DatePicker) findViewById(R.id.date_picker);        timePicker = (TimePicker) findViewById(R.id.time_picker);        params_left =  new RelativeLayout.LayoutParams(57,60);        params_right = new RelativeLayout.LayoutParams(57,60);        params_left.addRule(RelativeLayout.ALIGN_PARENT_LEFT);        params_right.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);        switch_on = false;        texton = getResources().getString(R.string.timing_test);        textoff = getResources().getString(R.string.immediate_test);        tv.setText(textoff);        tv.setLayoutParams(params_left);        datePicker.setEnabled(false);        timePicker.setEnabled(false);        timePicker.setIs24HourView(true);        tv.setOnClickListener(new OnClickListener() {            @Override            public void onClick(View v) {                if(!switch_on) {                    tv.setText(texton);                    tv.setLayoutParams(params_right);                    switch_on = true;                    Log.d("xjj","on");                    datePicker.setEnabled(true);                    timePicker.setEnabled(true);                }                else {                    tv.setText(textoff);                    tv.setLayoutParams(params_left);                    switch_on = false;                    Log.d("xjj","off");                    datePicker.setEnabled(false);                    timePicker.setEnabled(false);                }            }        });    }}

3/ the_layout_you_want.xml (include class like

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#ffffee"    android:orientation="vertical">    <include        android:id="@+id/logo"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        layout="@layout/grean"/>    <com.example.grean.myapplication.SingleTest        android:layout_width="match_parent"        android:layout_height="90dp"/>    <com.example.grean.myapplication.LoopTest        android:layout_width="match_parent"        android:layout_height="90dp"/></LinearLayout>

okay, now it looks pretty.

ques: how to control a element in other layout?