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最新评论
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drinkjava2:
太复杂了而且不通用,利用ThreadLocal可完美解决这一问 ...
JDBC的多条件动态查询 -
u013107014:
multipartRequest.getFiles(" ...
多文件上传 by MultipartFile and Multiple -
liyys:
可惜没讲你mysql数据库的表的设计
iBatis入门 -
Mapple_leave:
效果还是挺不错的,谢谢了。
中文简体与繁体的转换 -
arcpad:
JS禁用浏览器退格键
Android学习08-----Android中的基本控件(下)(7)_ZoomControls,PopupWindow,ExpandableListView
- 博客分类:
- Android
一、缩放控制: ZoomControls
Mian.xml
<?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/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="你好" android:textSize="10px" /> <ZoomControls android:id="@+id/zommcontrols" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="bottom" /> </LinearLayout>
ZoomControlsActivity.java
package com.iflytek.demo; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.TextView; import android.widget.ZoomControls; public class ZoomControlsActivity extends Activity { private ZoomControls zoomcontrols = null; private TextView text = null; private int size = 10; // 是保存文字大小 /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.zoomcontrols = (ZoomControls) super .findViewById(R.id.zommcontrols); this.text = (TextView) super.findViewById(R.id.text); this.zoomcontrols .setOnZoomInClickListener(new OnZoomInClickListenerImpl()); this.zoomcontrols .setOnZoomOutClickListener(new OnZoomOutClickListenerImpl()); } private class OnZoomInClickListenerImpl implements OnClickListener { @Override public void onClick(View v) { ZoomControlsActivity.this.size = size + 2; ZoomControlsActivity.this.text.setTextSize(size); } } private class OnZoomOutClickListenerImpl implements OnClickListener { @Override public void onClick(View v) { ZoomControlsActivity.this.size = size - 2; ZoomControlsActivity.this.text.setTextSize(size); } } }
二、弹出窗口: PopupWindow
PopupWindowActivity.java
package com.iflytek.demo; import android.app.Activity; import android.os.Bundle; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.PopupWindow; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.RadioGroup.OnCheckedChangeListener; import android.widget.TextView; public class PopupWindowActivity extends Activity { private Button popbut = null; private TextView statusinfo = null; private View popView = null; private PopupWindow popWin = null; private RadioGroup changestatus = null; private Button cancel = null; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.popbut = (Button) super.findViewById(R.id.popbut); this.statusinfo = (TextView) super.findViewById(R.id.statusinfo); this.popbut.setOnClickListener(new OnClickListenerImpl()); } private class OnClickListenerImpl implements OnClickListener { @Override public void onClick(View v) { LayoutInflater inflater = LayoutInflater .from(PopupWindowActivity.this); PopupWindowActivity.this.popView = inflater.inflate( R.layout.popwindow, null); // 找到了布局文件中的View PopupWindowActivity.this.popWin = new PopupWindow( PopupWindowActivity.this.popView, 300, 220, true); PopupWindowActivity.this.changestatus = (RadioGroup) PopupWindowActivity.this.popView .findViewById(R.id.changestatus); // 取得弹出界面中的组件 PopupWindowActivity.this.cancel = (Button) PopupWindowActivity.this.popView .findViewById(R.id.cancel); PopupWindowActivity.this.changestatus .setOnCheckedChangeListener(new OnCheckedChangeListenerImpl()); PopupWindowActivity.this.cancel .setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { PopupWindowActivity.this.popWin.dismiss(); // 不显示 } }); PopupWindowActivity.this.popWin.showAtLocation( PopupWindowActivity.this.popbut, Gravity.CENTER, 0, 0); } } private class OnCheckedChangeListenerImpl implements OnCheckedChangeListener { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { RadioButton but = (RadioButton) PopupWindowActivity.this.popView .findViewById(group.getCheckedRadioButtonId()); // 取得指定的单选钮被选中 PopupWindowActivity.this.statusinfo.setText("当前用户状态:" + but.getText().toString()); PopupWindowActivity.this.popWin.dismiss(); } } }
Main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:id="@+id/statusinfo" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="当前用户状态:在线" /> <Button android:id="@+id/popbut" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="状态" /> </LinearLayout>
popwindow.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:id="@+id/popinfo" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="请选择您的当前状态:" android:textSize="20px" /> <RadioGroup android:id="@+id/changestatus" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" android:checkedButton="@+id/online"> <RadioButton android:id="@+id/online" android:text="在线" /> <RadioButton android:id="@+id/offline" android:text="离线" /> <RadioButton android:id="@+id/stealth" android:text="隐身" /> </RadioGroup> <Button android:id="@+id/cancel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="取消"/> </LinearLayout>
三、树型组件: ExpandableListView
1 、组项监听
ExpandableListView02_Activity.java
package com.iflytek.demo; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.ExpandableListAdapter; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnChildClickListener; import android.widget.ExpandableListView.OnGroupClickListener; import android.widget.ExpandableListView.OnGroupCollapseListener; import android.widget.ExpandableListView.OnGroupExpandListener; import android.widget.Toast; public class ExpandableListView02_Activity extends Activity { private ExpandableListView elistview = null; private ExpandableListAdapter adapter = null; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.elistview = (ExpandableListView) super .findViewById(R.id.elistview); this.adapter = new MyExpandableListAdapter(this); this.elistview.setAdapter(this.adapter); this.elistview.setOnChildClickListener(new OnChildClickListenerImpl()); this.elistview.setOnGroupClickListener(new OnGroupClickListenerImpl()); this.elistview .setOnGroupExpandListener(new OnGroupExpandListenerImpl()); this.elistview .setOnGroupCollapseListener(new OnGroupCollapseListenerImpl()); } private class OnChildClickListenerImpl implements OnChildClickListener { @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { Toast.makeText( ExpandableListView02_Activity.this, "子选项被选中,groupPosition = " + groupPosition + ",childPosition = " + childPosition, Toast.LENGTH_SHORT).show(); return false; } } private class OnGroupClickListenerImpl implements OnGroupClickListener { @Override public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) { Toast.makeText(ExpandableListView02_Activity.this, "分组被选中,groupPosition = " + groupPosition, Toast.LENGTH_SHORT).show(); return false; } } private class OnGroupExpandListenerImpl implements OnGroupExpandListener { @Override public void onGroupExpand(int groupPosition) { Toast.makeText(ExpandableListView02_Activity.this, "打开分组,groupPosition = " + groupPosition, Toast.LENGTH_SHORT) .show(); } } private class OnGroupCollapseListenerImpl implements OnGroupCollapseListener { @Override public void onGroupCollapse(int groupPosition) { Toast.makeText(ExpandableListView02_Activity.this, "关闭分组,groupPosition = " + groupPosition, Toast.LENGTH_SHORT) .show(); } } }
MyExpandableListAdapter.java
package com.iflytek.demo; import android.content.Context; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.BaseExpandableListAdapter; import android.widget.TextView; public class MyExpandableListAdapter extends BaseExpandableListAdapter { // 一个组下肯定会有多个子选项 private String[] groups = new String[] { "我的好友", "家人", "同事", "黑名单" }; // 组名称 private String[][] children = new String[][] { { "赵一", "吴二", "张三", "李四" }, { "父亲", "母亲" }, { "王五", "赵六", "王八" }, { "票贩子", "造假商" } }; // 这里面定义的子选项 private Context context = null; public MyExpandableListAdapter(Context context) { this.context = context; } @Override public Object getChild(int groupPosition, int childPosition) { // 取得指定的子选项 return this.children[groupPosition][childPosition]; } @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } private TextView buildTextView() { AbsListView.LayoutParams params = new AbsListView.LayoutParams( ViewGroup.LayoutParams.FILL_PARENT, 55); TextView textView = new TextView(this.context); textView.setLayoutParams(params); textView.setTextSize(15.0f); textView.setGravity(Gravity.LEFT); textView.setPadding(70, 8, 3, 3); return textView; } @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { TextView textView = this.buildTextView(); textView.setText(this.getChild(groupPosition, childPosition).toString()); return textView; } @Override public int getChildrenCount(int groupPosition) { return this.children[groupPosition].length; } @Override public Object getGroup(int groupPosition) { return this.groups[groupPosition]; } @Override public int getGroupCount() { return this.groups.length; } @Override public long getGroupId(int groupPosition) { return groupPosition; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { TextView textView = this.buildTextView(); textView.setText(this.getGroup(groupPosition).toString()); return textView; } @Override public boolean hasStableIds() { return true; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } }
main.xml
<?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" > <ExpandableListView android:id="@+id/elistview" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout>
3 、上下文菜单
ExpandableListView03Activity.java
package com.iflytek.demo; import android.app.Activity; import android.os.Bundle; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.View; import android.widget.ExpandableListAdapter; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnChildClickListener; import android.widget.ExpandableListView.OnGroupClickListener; import android.widget.ExpandableListView.OnGroupCollapseListener; import android.widget.ExpandableListView.OnGroupExpandListener; import android.widget.Toast; public class ExpandableListView03Activity extends Activity { private ExpandableListView elistview = null; private ExpandableListAdapter adapter = null; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); this.elistview = (ExpandableListView) super .findViewById(R.id.elistview); this.adapter = new MyExpandableListAdapter(this); this.elistview.setAdapter(this.adapter); super.registerForContextMenu(this.elistview); this.elistview.setOnChildClickListener(new OnChildClickListenerImpl()); this.elistview.setOnGroupClickListener(new OnGroupClickListenerImpl()); this.elistview .setOnGroupExpandListener(new OnGroupExpandListenerImpl()); this.elistview .setOnGroupCollapseListener(new OnGroupCollapseListenerImpl()); } private class OnChildClickListenerImpl implements OnChildClickListener { @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { Toast.makeText( ExpandableListView03Activity.this, "子选项被选中,groupPosition = " + groupPosition + ",childPosition = " + childPosition, Toast.LENGTH_SHORT).show(); return false; } } private class OnGroupClickListenerImpl implements OnGroupClickListener { @Override public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) { Toast.makeText(ExpandableListView03Activity.this, "分组被选中,groupPosition = " + groupPosition, Toast.LENGTH_SHORT).show(); return false; } } private class OnGroupExpandListenerImpl implements OnGroupExpandListener { @Override public void onGroupExpand(int groupPosition) { Toast.makeText(ExpandableListView03Activity.this, "打开分组,groupPosition = " + groupPosition, Toast.LENGTH_SHORT) .show(); } } private class OnGroupCollapseListenerImpl implements OnGroupCollapseListener { @Override public void onGroupCollapse(int groupPosition) { Toast.makeText(ExpandableListView03Activity.this, "关闭分组,groupPosition = " + groupPosition, Toast.LENGTH_SHORT) .show(); } } @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) menuInfo; int type = ExpandableListView .getPackedPositionType(info.packedPosition); // 取得菜单项 int group = ExpandableListView .getPackedPositionGroup(info.packedPosition); // 取得所在组的索引 int child = ExpandableListView .getPackedPositionChild(info.packedPosition); // 取得子菜单项的索引 Toast.makeText(ExpandableListView03Activity.this, "type = " + type + ",group = " + group + ",child = " + child, Toast.LENGTH_SHORT).show(); } }
发表评论
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This version of ADT requires android SDK
2013-07-25 16:45 1531Windows系统下用Eclipse开发工具开发An ... -
Android学习13-----网络通信(4) WebView组件
2012-11-27 09:18 2447WebView 是一个开发的浏览 ... -
Android学习13-----网络通信(3) 与Web Service进行通讯
2012-11-26 09:40 1849这里我们的WebService使用xFire开发。 ... -
Android学习13-----网络通信(2) 与Socket交换数据
2012-11-23 09:11 3259对于网络开发而言,最常用的交互模式:WebService、We ... -
Android学习13-----网络通信(1) 与WEB服务器交换数据
2012-11-22 09:11 2152与Web服务器交互: 如果手机要想与 web ... -
Android学习11-----多媒体技术(5) 媒体录制
2012-11-16 08:10 1837在Android中通过android.media ... -
Android学习11-----多媒体技术(4) 使用摄像头拍照,多点触控
2012-11-15 08:37 2823一、摄像头拍照 前面说媒体播放 时了解了 ... -
Android学习11-----多媒体技术(3) 媒体播放
2012-11-14 08:25 1370在 Androi ... -
Android学习11-----多媒体技术(2) Animation
2012-11-13 08:47 1947一、渐变动画, Tweened Animation ... -
Android学习11-----多媒体技术(1) 绘制简单图形,Bitmap,Matrix
2012-11-12 08:48 1554一、绘制简单图 ... -
Android学习12-----手机服务(4) 传感器
2012-11-19 09:13 1982传感器一般用于游戏中,在 Android 系统中为 ... -
Android学习12-----手机服务(1) 取得电池电量和声音服务:AudioManager
2012-11-18 11:18 3414一、取得电池电量信息 ... -
Android学习10-----Android组件通信 (8) 桌面显示组件:AppWidget
2012-11-02 08:36 1982一、 AppWidget 在使用 Androi ... -
Android学习10-----Android组件通信 (7) 广播机制:Broadcast
2012-11-01 08:43 1471一、 广播: 广播也是一种信息的发送机制,在 ... -
Android学习10-----Android组件通信 (6) PendingIntent
2012-10-31 08:20 2196Intent 的主要功能是表示用 ... -
Android学习10-----Android组件通信 (5) Service
2012-10-30 08:25 1665Service 基本组成: ... -
Android学习10-----Android组件通信 (4) 消息机制
2012-10-29 08:22 1502在 Android 操作系统中存在着消息队列的操作 ... -
Android学习10-----Android组件通信 (3) ActivityGroup
2012-10-26 08:23 2257导航栏在 Android 中的应用是很常见的,前面 ... -
Android学习10-----Android组件通信 (2) Activity生命周期
2012-10-25 08:16 1240Activity 是整个 Android 平台的基 ... -
Android学习10-----Android组件通信 (1) Intent
2012-10-24 08:43 1911在一个项目之中,会由多个 Activity ...
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