[3] TouchEvent, Inflater

1. Touch Event

Sample Source

package com.ssh.user.ex_1202; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.MotionEvent; import android.view.View; import android.widget.Button; import android.widget.TextView; public class TouchEventActivity extends AppCompatActivity { Button evt_btn; TextView txt_view, box; boolean isCheck; // default = false @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_touch_event); evt_btn = (Button)findViewById(R.id.evt_btn); txt_view = (TextView)findViewById(R.id.txt_view); box = (TextView)findViewById(R.id.box); evt_btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(isCheck) box.setText("NO EVENT!"); else box.setText("EVENT"); isCheck = !isCheck; } }); // box 텍스트 뷰에 터치 이벤트 감지자자 box.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { String result = ""; int x = 0; int y = 0; switch(motionEvent.getAction()) { case MotionEvent.ACTION_DOWN: // 터치(손가락이 닿았을때), return 값이 true, false에 상관없이 감지한다. result = "down"; break; case MotionEvent.ACTION_UP: // return 값이 true일 경우에만 감지한다 result = "up"; break; case MotionEvent.ACTION_MOVE: // return 값이 true일 경우에만 감지한다. x = (int)motionEvent.getX(); y = (int)motionEvent.getY(); result = "x : " + x + ", y : " + y; break; }//switch txt_view.setText(result); // return 값은 true일 경우에만 화면에 적용 하지만, // Action_Down은 return 값에 관계없이 적용된다. return isCheck; } }); } }

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_touch_event" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.ssh.user.ex_1202.TouchEventActivity"> <TextView android:id="@+id/txt_view" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="30dp" /> <!--버튼으로 이벤트 감지 on/off--> <Button android:id="@+id/evt_btn" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:text="catch event" android:textSize="25dp"/> <!--빨간색 뷰만 터치를 감지 하도록 만듬--> <TextView android:id="@+id/box" android:layout_width="250dp" android:layout_height="250dp" android:background="#f00" android:textColor="#fff" android:textSize="20dp" android:gravity="center" android:layout_centerInParent="true"/> </RelativeLayout>

2. Inflater

Sample Source

package com.ssh.user.ex_1202; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.LayoutInflater; import android.view.View; import android.widget.Button; import android.widget.RelativeLayout; import android.widget.Toast; public class InflaterActivity extends AppCompatActivity { LayoutInflater linf; View sub; RelativeLayout parent; Button btn; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_inflater); parent = (RelativeLayout)findViewById(R.id.activity_inflater); // LayoutInflater는 .xml을 객체화(view) 시켜주는 클래스 linf = (LayoutInflater)getSystemService( LAYOUT_INFLATER_SERVICE ); //sub = linf.inflate(R.layout.sub_layout, parent); sub = linf.inflate(R.layout.sub_layout, null); parent.addView(sub); btn = (Button)sub.findViewById(R.id.btn_event); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Toast.makeText(getApplicationContext(), "event!!", Toast.LENGTH_SHORT).show(); } }); } }

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_inflater" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="com.ssh.user.ex_1202.InflaterActivity"> </RelativeLayout> <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="10dp"> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@mipmap/ic_launcher"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <TextView android:id="@+id/list_form_txt_s" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="txt"/> <TextView android:id="@+id/list_form_txt" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="7dp" android:text="line2" android:textSize="20dp" android:textStyle="bold"/> </LinearLayout> </LinearLayout>