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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>?
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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>?
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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>
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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>?
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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(); }}