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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）(4)_Toast ImageSwitcher TextSwitcher
- 博客分类：
- Android
一、信息提示框： Toast
1 、提示文字信息
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" >
<Button
android:id="@+id/butA"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="长时间显示Toast" />
<Button
android:id="@+id/butB"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="短时间显示Toast" />
</LinearLayout>
Toast01Activity.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.Button;
import android.widget.Toast;
public class Toast01Activity extends Activity {
private Button butA = null;
private Button butB = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.butA = (Button) super.findViewById(R.id.butA);
this.butB = (Button) super.findViewById(R.id.butB);
this.butA.setOnClickListener(new OnClickListenerImplLong());
this.butB.setOnClickListener(new OnClickListenerImplShort());
}
private class OnClickListenerImplLong implements OnClickListener {
@Override
public void onClick(View v) {
Toast.makeText(Toast01Activity.this, "长时间显示的Toast信息提示框",
Toast.LENGTH_LONG).show();
}
}
private class OnClickListenerImplShort implements OnClickListener {
@Override
public void onClick(View v) {
Toast.makeText(Toast01Activity.this, "短时间显示的Toast信息提示框",
Toast.LENGTH_SHORT).show();
}
}
}
2 、自定义显示风格
Toast02Activity.java
package com.iflytek.demo;
import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;
public class Toast02Activity extends Activity {
private Button but = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.but = (Button) super.findViewById(R.id.but);
this.but.setOnClickListener(new OnClickListenerImpl());
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View v) {
Toast myToast = Toast.makeText(Toast02Activity.this, "安徽合肥",
Toast.LENGTH_LONG);
myToast.setGravity(Gravity.CENTER, 60, 30);
LinearLayout myToastView = (LinearLayout) myToast.getView(); // 线性布局
ImageView img = new ImageView(Toast02Activity.this);
img.setImageResource(R.drawable.ic_launcher);
myToastView.addView(img, 0); // 放在最前面
myToast.show();
}
}
}
二、图片切换： ImageSwitcher
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" >
<ImageSwitcher
android:id="@+id/myImageSwitcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<Button
android:id="@+id/butPrevious"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:enabled="false"
android:text="上一张图片" />
<Button
android:id="@+id/butNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:enabled="true"
android:text="下一张图片" />
</LinearLayout>
</LinearLayout>
ImageSwitcherActivity.java
package com.iflytek.demo;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.ViewSwitcher.ViewFactory;
public class ImageSwitcherActivity extends Activity {
private Button butPrevious = null;
private Button butNext = null;
private ImageSwitcher myImageSwitcher = null;
private int[] imgRes = new int[] { R.drawable.ispic_a, R.drawable.ispic_b,
R.drawable.ispic_c, R.drawable.ispic_d, R.drawable.ispic_e };
private int foot = 0; // 表示当前已经显示的数组图片的脚标
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.myImageSwitcher = (ImageSwitcher) super
.findViewById(R.id.myImageSwitcher);
this.butPrevious = (Button) super.findViewById(R.id.butPrevious);
this.butNext = (Button) super.findViewById(R.id.butNext);
this.myImageSwitcher.setFactory(new ViewFactoryImpl());
this.myImageSwitcher.setImageResource(this.imgRes[this.foot++]);
this.myImageSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
this.myImageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
this.butPrevious.setOnClickListener(new OnClickListenerPrevious());
this.butNext.setOnClickListener(new OnClickListenerNext());
}
private class OnClickListenerPrevious implements OnClickListener {
@Override
public void onClick(View view) {
ImageSwitcherActivity.this.myImageSwitcher
.setImageResource(ImageSwitcherActivity.this.imgRes[ImageSwitcherActivity.this.foot--]);
ImageSwitcherActivity.this.checkButEnable();
}
}
private class OnClickListenerNext implements OnClickListener {
@Override
public void onClick(View view) {
ImageSwitcherActivity.this.myImageSwitcher
.setImageResource(ImageSwitcherActivity.this.imgRes[ImageSwitcherActivity.this.foot++]);
ImageSwitcherActivity.this.checkButEnable();
}
}
private void checkButEnable() { // 判断按钮是否可用
if (this.foot < this.imgRes.length - 1) {
this.butNext.setEnabled(true);
} else {
this.butNext.setEnabled(false);
}
if (this.foot == 0) {
this.butPrevious.setEnabled(false);
} else {
this.butPrevious.setEnabled(true);
}
}
private class ViewFactoryImpl implements ViewFactory {
@Override
public View makeView() {
ImageView img = new ImageView(ImageSwitcherActivity.this);
img.setBackgroundColor(0xFFFFFFFF); // 设置背景
img.setScaleType(ImageView.ScaleType.CENTER);
img.setLayoutParams(new ImageSwitcher.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); // 定义组件
return img;
}
}
}
三、文本切换： TextSwitcher
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" >
<TextSwitcher
android:id="@+id/myTextSwitcher"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="@+id/but"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="显示当前时间" />
</LinearLayout>
TextSwitcherActivity.java
package com.iflytek.demo;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.AnimationUtils;
import android.widget.Button;
import android.widget.TextSwitcher;
import android.widget.TextView;
import android.widget.ViewSwitcher.ViewFactory;
public class TextSwitcherActivity extends Activity {
private TextSwitcher myTextSwitcher = null;
private Button but = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.myTextSwitcher = (TextSwitcher) super
.findViewById(R.id.myTextSwitcher);
this.but = (Button) super.findViewById(R.id.but);
this.myTextSwitcher.setFactory(new ViewFactoryImpl());
this.myTextSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_in));
this.myTextSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
android.R.anim.fade_out));
this.but.setOnClickListener(new OnClickListenerImpl());
}
private class OnClickListenerImpl implements OnClickListener {
@Override
public void onClick(View v) {
TextSwitcherActivity.this.myTextSwitcher.setText("当前时间为："
+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS")
.format(new Date()));
}
}
private class ViewFactoryImpl implements ViewFactory {
@Override
public View makeView() {
TextView txt = new TextView(TextSwitcherActivity.this);
txt.setBackgroundColor(0xFFFFFFFF);
txt.setTextColor(0xFF000000);
txt.setLayoutParams(new TextSwitcher.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
txt.setTextSize(30);
return txt;
}
}
}
四、拖拉图片： Gallery
1 、 BaseAdapter 实现
Gallery01_BaseAdapterActivity.java
package com.iflytek.demo;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Gallery;
import android.widget.Toast;
public class Gallery01_BaseAdapterActivity extends Activity {
private Gallery gallery = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.gallery = (Gallery) super.findViewById(R.id.myGallery);
this.gallery.setAdapter(new ImageGalleryAdapter(this));
this.gallery.setOnItemClickListener(new OnItemClickListenerImpl()) ;
}
private class OnItemClickListenerImpl implements OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Toast.makeText(Gallery01_BaseAdapterActivity.this, String.valueOf(position),
Toast.LENGTH_SHORT).show();
}
}
}
ImageGalleryAdapter.java
package com.iflytek.demo;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
public class ImageGalleryAdapter extends BaseAdapter {
private Context context = null;
// 里面的所有方法表示的是可以根据指定的显示图片的数量，进行每个图片的处理
private int[] imgRes = new int[] { R.drawable.ispic_a, R.drawable.ispic_b,
R.drawable.ispic_c, R.drawable.ispic_d, R.drawable.ispic_e }; // 这些是所要显示的图片的资源
public ImageGalleryAdapter(Context context) {
this.context = context;
}
@Override
public int getCount() { // 取得要显示的内容的数量
return this.imgRes.length; // 资源的数量
}
@Override
public Object getItem(int position) {
return this.imgRes[position];
}
@Override
public long getItemId(int position) { // 取得项的ID
return this.imgRes[position];
}
// 将资源设置到一个组件之中，很明显这个组件就是ImageView组件
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView img = new ImageView(this.context);
img.setBackgroundColor(0xFFFFFFFF);
img.setImageResource(this.imgRes[position]); // 将指定的资源设置到ImageView中
img.setScaleType(ImageView.ScaleType.CENTER); // 居中显示
img.setLayoutParams(new Gallery.LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
return img;
}
}
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" >
<Gallery
android:id="@+id/myGallery"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:spacing="3px" />
</LinearLayout>
2 、 SimpleAdapter 实现
grid_layout.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#FFFFFF"> <ImageView android:id="@+id/img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:scaleType="center"/> </LinearLayout>
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" >
<Gallery
android:id="@+id/myGallery"
android:gravity="center_vertical"
android:spacing="3px"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
Gallery02_SimpleAdapterActivity.java
package com.iflytek.demo;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Gallery;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class Gallery02_SimpleAdapterActivity extends Activity {
private Gallery gallery = null;
private SimpleAdapter simpleAdapter = null;
private List<Map<String, Integer>> list = new ArrayList<Map<String, Integer>>();
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.initAdapter();
this.gallery = (Gallery) super.findViewById(R.id.myGallery);
this.gallery.setAdapter(this.simpleAdapter);
this.gallery.setOnItemClickListener(new OnItemClickListenerImpl());
}
private void initAdapter() {
Field[] fields = R.drawable.class.getDeclaredFields(); // 取得全部的属性
for (int x = 0; x < fields.length; x++) {
if (fields[x].getName().startsWith("ispic_")) { // 我们所需要的图片
Map<String, Integer> map = new HashMap<String, Integer>();
try {
map.put("img", fields[x].getInt(R.drawable.class)); // 必须定义好名称是img
} catch (Exception e) {
}
this.list.add(map);
}
}
this.simpleAdapter = new SimpleAdapter(this, this.list,
R.layout.grid_layout, new String[] { "img" },
new int[] { R.id.img });
}
private class OnItemClickListenerImpl implements OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Toast.makeText(Gallery02_SimpleAdapterActivity.this,
String.valueOf(position), Toast.LENGTH_SHORT).show();
}
}
}
3 、图片浏览
Gallery03_Activity.java
package com.iflytek.demo;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.SimpleAdapter;
import android.widget.ViewSwitcher.ViewFactory;
public class Gallery03_Activity extends Activity {
private Gallery gallery = null;
private SimpleAdapter simpleAdapter = null;
private List<Map<String, Integer>> list = new ArrayList<Map<String, Integer>>();
private ImageSwitcher myImageSwitcher = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.initAdapter();
this.gallery = (Gallery) super.findViewById(R.id.myGallery);
this.myImageSwitcher = (ImageSwitcher) super
.findViewById(R.id.myImageSwitcher);
this.gallery.setAdapter(this.simpleAdapter);
this.myImageSwitcher.setFactory(new ViewFactoryImpl());
this.gallery.setOnItemClickListener(new OnItemClickListenerImpl());
}
private void initAdapter() {
Field[] fields = R.drawable.class.getDeclaredFields(); // 取得全部的属性
for (int x = 0; x < fields.length; x++) {
if (fields[x].getName().startsWith("ispic_")) { // 我们所需要的图片
Map<String, Integer> map = new HashMap<String, Integer>();
try {
map.put("img", fields[x].getInt(R.drawable.class)); // 必须定义好名称是img
} catch (Exception e) {
}
this.list.add(map);
}
}
this.simpleAdapter = new SimpleAdapter(this, this.list,
R.layout.grid_layout, new String[] { "img" },
new int[] { R.id.img });
}
private class OnItemClickListenerImpl implements OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Map<String, Integer> map = (Map<String, Integer>) parent
.getAdapter().getItem(position);
Gallery03_Activity.this.myImageSwitcher.setImageResource(map.get("img"));
}
}
private class ViewFactoryImpl implements ViewFactory {
@Override
public View makeView() {
ImageView img = new ImageView(Gallery03_Activity.this);
img.setBackgroundColor(0xFFFFFFFF);
img.setScaleType(ImageView.ScaleType.CENTER);
img.setLayoutParams(new ImageSwitcher.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
return img;
}
}
}
grid_layout.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#FFFFFF"> <ImageView android:id="@+id/img" android:layout_width="wrap_content" android:layout_height="wrap_content" android:scaleType="center"/> </LinearLayout>
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" >
<ImageSwitcher
android:id="@+id/myImageSwitcher"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<Gallery
android:id="@+id/myGallery"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:spacing="3px" />
</LinearLayout>
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发表评论
-
This version of ADT requires android SDK
2013-07-25 16:45 1541Windows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 2452WebView 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 1858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 3267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 2158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 1846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 2834一、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 1380在 Androi ... -
Android学习11-----多媒体技术(2) Animation
2012-11-13 08:47 1955一、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 1568一、绘制简单图 ... -
Android学习12-----手机服务(4) 传感器
2012-11-19 09:13 1986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 3430一、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 1999一、 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 1480一、 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 2206Intent 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 1679Service 基本组成： ... -
Android学习10-----Android组件通信 (4) 消息机制
2012-10-29 08:22 1510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 2264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 1248Activity 是整个 Android 平台的基 ... -
Android学习10-----Android组件通信 (1) Intent
2012-10-24 08:43 1928在一个项目之中，会由多个 Activity ...
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android控件详解----TextView
Android-Chat-Widget 是像微信、WhatsApp、Line一样的聊天控件。 Demo 如何使用? 1.在Layout中 android:id="@ id/messageInputToolBox" android:layout_width="match_parent" ...
主要介绍android UI基本控件的使用
这是在相对布局里面下的一些android常用控件的练习，可以很好的教给你这些android基本控件的使用方法。最最基本的代码了，比较适合新手。
Android的一些基本的UI组件的程序
Android常用基本控件的使用，设置等。。
Android-skin-support: 一款用心去做的Android 换肤框架, 极低的学习成本, 极好的用户体验.
梯形控件，the Trapezoid Parts View which draw Trapezoid image. and event on it.
Android_自定义控件_eBook_翻书效果
Android 表格控件-动态实现表格效果（内容、样式可扩展），参考博客：http://blog.csdn.net/daijin888888/article/details/50159579
在 iOS开发中有大名鼎鼎的AFNetworking库，用来处理网络请求操作，今天要介绍的是一个在Android上同样强大的网络请求库android-async-http，此库的网络处理均基于Android的非UI线程，通过回调方法处理请求结果。...
progress-image-view-android 带简单进度的android ImageView控件
Android徽章控件
square公司的开源框架android-times-square，可以实现日历效果
android-collapse-calendar-view，简约炫酷，可以在月视图与周视图之间切换的calendar控件，博客附件，效果请查看博客相对应项目。
Android高级应用源码-android自定义控件-侧滑菜单.zip