keycode

Android Back Home键监听 Back键的监听 　　对于Back键的监听比较容易,可以在多个系统回调处拦截,比如在 activity的下列方法中都可以收到Back键按下的事件 : @Override public void onBackPressed() { // super.onBackPressed();//注释掉这行,back键不退出activity Log.i(LOG_TAG, "onBackPressed"); } @Override public boolean dispatchKeyEvent(KeyEvent event) { Log.i(LOG_TAG, "dispatchKeyEvent: keyCode -- " + event.getKeyCode()); return super.dispatchKeyEvent(event); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { Log.i(LOG_TAG, "onKeyDown: keyCode -- " + keyCode); switch (keyCode) { case KeyEvent.KEYCODE_BACK: Log.i(LOG_TAG, "KeyEvent.KEYCODE_BACK");

大家平时见到的最多的可能就是Frame动画了，Android中当然也少不了它。它的使用更加简单，只需要创建一个AnimationDrawabledF对象来表示Frame动画，然后通过addFrame 方法把每一帧要显示的内容添加进去，最后通过start 方法就可以播放这个动画了，同时还可以通过 setOneShot方法设置是否重复播放。 下面就是一个用Frame动画模拟日全食的效果。先看看效果。 Activity01 Java代码 package xiaohang.zhimeng; import android.app.Activity; import android.os.Bundle; import android.view.KeyEvent; import android.view.Window; import android.view.WindowManager; public class Activity01 extends Activity { private GameView mGameView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 设置无标题栏 requestWindowFeature(Window

if ( editor ) { editor . enableKeyEvents = true ; editor . on ( "keydown" , function ( f , e ) { var keyCode = e . getKey ( ) ; if ( e . ctrlKey = = true ) { // ctrl+c ctrl+v 等系统快捷键不屏蔽 // 86, 90, 88, 67, 65 if ( keyCode = = 86 || keyCode = = 90 || keyCode = = 88 || keyCode = = 67 || keyCode = = 65 ) { return true ; } } if ( e . ctrlKey || e . altKey || ( keyCode >= 112 && keyCode <= 123 ) ) { e . preventDefault ( ) ; // editor需要额外处理全键盘事件 } } , this ) } 来源： CSDN 作者： Harry May 链接： https://blog.csdn.net/m0_37558768/article/details/103970975

package cn.itcast.estore.web.servlet; import java.io.IOException; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import cn.itcast.estore.domain.Product; public class AddCountInCartServlet extends HttpServlet { @Override public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // 1.获取参数id，商品数量count String id = request.getParameter("id"); String count = request.getParameter("count"); int

引用： http://my.oschina.net/chen106106/blog/51701 package com.test.qiao; import android.app.Activity; import android.os.Bundle; import android.view.KeyEvent; import android.view.WindowManager; public class ZZZActivity extends Activity { private boolean flag = true ; //true位屏蔽，false位不屏蔽 @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.main); } @Override public void onAttachedToWindow() { if (flag) { this .getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD); } super .onAttachedToWindow(); } @Override public boolean