Created
July 30, 2015 04:27
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Android Sample Flick Input Event
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<?xml version="1.0" encoding="utf-8"?> | |
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" | |
android:layout_width="fill_parent" | |
android:layout_height="fill_parent" | |
android:orientation="vertical" > | |
<TextView | |
android:id="@+id/textView1" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" /> | |
<TextView | |
android:id="@+id/textView2" | |
android:layout_width="wrap_content" | |
android:layout_height="wrap_content" /> | |
</LinearLayout> |
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package flick.input.test; | |
import android.support.v7.app.ActionBarActivity; | |
import android.os.Bundle; | |
import android.view.GestureDetector; | |
import android.view.Menu; | |
import android.view.MenuItem; | |
import android.view.MotionEvent; | |
import android.widget.TextView; | |
public class MainActivity extends ActionBarActivity { | |
// テキストビュー | |
private TextView textView1; | |
private TextView textView2; | |
// X軸最低スワイプ距離 | |
private static final int SWIPE_MIN_DISTANCE = 50; | |
// X軸最低スワイプスピード | |
private static final int SWIPE_THRESHOLD_VELOCITY = 200; | |
// Y軸の移動距離 これ以上なら横移動を判定しない | |
private static final int SWIPE_MAX_OFF_PATH = 250; | |
// タッチイベントを処理するためのインタフェース | |
private GestureDetector mGestureDetector; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
mGestureDetector = new GestureDetector(this, mOnGestureListener); | |
textView1 = (TextView)findViewById(R.id.textView1); | |
textView2 = (TextView)findViewById(R.id.textView2); | |
} | |
// タッチイベント | |
@Override | |
public boolean onTouchEvent(MotionEvent event) { | |
return mGestureDetector.onTouchEvent(event); | |
} | |
// タッチイベントのリスナー | |
private final GestureDetector.SimpleOnGestureListener mOnGestureListener = new GestureDetector.SimpleOnGestureListener() { | |
// フリックイベント | |
@Override | |
public boolean onFling(MotionEvent event1, MotionEvent event2, float velocityX, float velocityY) { | |
try { | |
// 移動距離・スピードを出力 | |
float distance_x = Math.abs((event1.getX() - event2.getX())); | |
float velocity_x = Math.abs(velocityX); | |
textView1.setText("横の移動距離:" + distance_x + " 横の移動スピード:" + velocity_x); | |
// Y軸の移動距離が大きすぎる場合 | |
if (Math.abs(event1.getY() - event2.getY()) > SWIPE_MAX_OFF_PATH) { | |
textView2.setText("縦の移動距離が大きすぎ"); | |
} | |
// 開始位置から終了位置の移動距離が指定値より大きい | |
// X軸の移動速度が指定値より大きい | |
else if (event1.getX() - event2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { | |
textView2.setText("右から左"); | |
} | |
// 終了位置から開始位置の移動距離が指定値より大きい | |
// X軸の移動速度が指定値より大きい | |
else if (event2.getX() - event1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { | |
textView2.setText("左から右"); | |
} | |
} catch (Exception e) { | |
// TODO | |
} | |
return false; | |
} | |
}; | |
@Override | |
public boolean onCreateOptionsMenu(Menu menu) { | |
// Inflate the menu; this adds items to the action bar if it is present. | |
getMenuInflater().inflate(R.menu.menu_main, menu); | |
return true; | |
} | |
@Override | |
public boolean onOptionsItemSelected(MenuItem item) { | |
// Handle action bar item clicks here. The action bar will | |
// automatically handle clicks on the Home/Up button, so long | |
// as you specify a parent activity in AndroidManifest.xml. | |
int id = item.getItemId(); | |
//noinspection SimplifiableIfStatement | |
if (id == R.id.action_settings) { | |
return true; | |
} | |
return super.onOptionsItemSelected(item); | |
} | |
} |
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