记录一次android测试实例
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2022-11-21 21:15:09
记录一次android测试实例
/**
* 测试进度条
*/
public class progresscomponentactivity extends activity {
p...
记录一次android测试实例
/** * 测试进度条 */ public class progresscomponentactivity extends activity { private linearlayout ll_progress_loading; private progressbar pd_progress_loading; private seekbar sb_progress_loading; private onseekbarchangelistener onseekbarchangelistener = new onseekbarchangelistener() { //离开滑杆 @override public void onstoptrackingtouch(seekbar seekbar) { log.e("tag", "离开滑杆"); //1.得到seekbar的进度 int progress = sb_progress_loading.getprogress(); //2.设置为progressbar的进度 pd_progress_loading.setprogress(progress); //3.判断是否达到最大值 if (progress == sb_progress_loading.getmax()) { //如果达到最大值,设置圆形进度条不可见 ll_progress_loading.setvisibility(view.invisible);//可见占用空间 // ll_progress_loading.setvisibility(view.gone);//不可见占用空间 }else{ //如果没有达到的话,设置圆形进度条显示 ll_progress_loading.setvisibility(view.visible); } } @override public void onstarttrackingtouch(seekbar seekbar) { log.e("tag", "按下滑杆"); } @override public void onprogresschanged(seekbar seekbar, int progress, boolean fromuser) { log.e("tag", "滑杆移动"); } }; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_progress_component); ll_progress_loading = (linearlayout) findviewbyid(r.id.ll_progress_loading); pd_progress_loading = (progressbar) findviewbyid(r.id.pd_progress_loading); sb_progress_loading = (seekbar) findviewbyid(r.id.sb_progress_loading); //给seekber设置监听 sb_progress_loading.setonseekbarchangelistener(onseekbarchangelistener ); } } activity_progress_component.xml <linearlayout xmlns:android="https://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <linearlayout android:id="@+id/ll_progress_loading" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center"> <progressbar style="?android:attr/progressbarstylelarge" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="正在加载中... ..." /> </linearlayout> <progressbar android:id="@+id/pd_progress_loading" style="?android:attr/progressbarstylehorizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:progress="30"/> <seekbar android:id="@+id/sb_progress_loading" android:layout_width="match_parent" android:layout_height="wrap_content" /> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="功能需求:\n1.滑动下面的滑杆后,上面的进度条会同步 \n2.滑动到最大值时,最上面的进度条消失" /> </linearlayout> //菜单menu menucomponentactivity.java import android.app.activity; import android.os.bundle; import android.view.contextmenu; import android.view.menu; import android.view.menuinflater; import android.view.menuitem; import android.view.view; import android.view.contextmenu.contextmenuinfo; import android.widget.button; import android.widget.toast; /** * 测试菜单menu * optionmenu * 1.如何触发menu的显示? *点击menu键 *2.如何向menu中添加menuitem? *重写oncreateoptionsmenu方法 * 1.menu.add() * 2.菜单文件 *3.选择某个menuitem时如何响应? * 重写onoptionsitemselected方法 * * * * 1.如何触发menu的显示? *长按某个视图,并view.setoncreatecontextlistener(this) *2.如何向menu中添加menuitem? *重写oncreatecontextmenu()方法,用menu.add()添加,(菜单文件方式也可以) *3.选择某个menuitem时如何响应? *重写oncontextitemselected方法,根据itemid响应 */ public class menucomponentactivity extends activity { private button btn_menu_cm; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_menu_component); btn_menu_cm = (button) findviewbyid(r.id.btn_menu_cm); //设置创建上下文菜单的监听 btn_menu_cm.setoncreatecontextmenulistener(this); } //用来显示选型菜单的方法,向menu中添加item @override public boolean oncreateoptionsmenu(menu menu) { //纯编码方式 menu.add(0, 2, 0, "添加"); menu.add(0, 3, 0, "删除"); return super.oncreateoptionsmenu(menu); } // @override // public boolean oncreateoptionsmenu(menu menu) { // //菜单文件的方式 // //1.得到菜单加载器对象 // menuinflater menuinflater = getmenuinflater(); // //2.加载菜单文件 // menuinflater.inflate(r.menu.option_menu, menu); // return super.oncreateoptionsmenu(menu); // } @override public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { case 2: // case r.id.add: toast.maketext(this, "添加", toast.length_short).show(); break; case 3: // case r.id.add: toast.maketext(this, "删除", toast.length_short).show(); break; } return super.onoptionsitemselected(item); } @override public void oncreatecontextmenu(contextmenu menu, view v, contextmenuinfo menuinfo) { super.oncreatecontextmenu(menu, v, menuinfo); //添加菜单项 menu.add(0,1,0,"添加"); menu.add(0,2,0,"删除"); } @override public boolean oncontextitemselected(menuitem item) { switch (item.getitemid()) { case 1: toast.maketext(this, "添加", toast.length_short).show(); break; case 2: toast.maketext(this, "删除", toast.length_short).show(); break; } return super.oncontextitemselected(item); } } activity_menu_component.xml <linearlayout xmlns:android="https://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <button android:id="@+id/btn_menu_cm" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="@string/menu_btn" /> <textview android:layout_width="match_parent" android:layout_height="wrap_content" android:text="1.点击menu显示选项菜单\n2.长按按钮显示上下文菜单" android:textsize="30sp"/> </linearlayout> 菜单文件方式 option_menu.xml <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="https://schemas.android.com/apk/res/android" > <item android:id="@+id/add" android:title="添加2"/> <item android:id="@+id/del" android:title="删除2"/> </menu>
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