* @return */ @Override public View getView(int position, View convertView, ViewGroup parent...* 第二步:在Acitvity中通过id找到它。 * 第三步:给Spinner绑定一个适配器。 * 第四步:绑定监听器就可以用了。...adapterView, View view, int i, long l) { String str = (String) adapterView.getItemAtPosition(i); //...adapterView, View view, int i, long l) { String str = (String) adapterView.getItemAtPosition(i); if...adapterView, View view, int i, long l) { String str = (String) adapterView.getItemAtPosition(i); Toast.makeText
() { @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { provincePosition = position; provinceName = provinceList.get...() { @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { cityPosition = position; cityName = cityList.get...parent, View view, int position, long id) { areaName = areaList.get(position); } @Override
> parent, View view,int position, long id) 这个方法中可以完成当选项被选中时要做的处理。四个参数的含义: AdapterView parent,这个类似context,只是范围比较下,指你当前操作的AdapterView View view ,这个参数是你具体单击的那个TextView对象 int position 这个参数的意思是你单击的那个...view在整个AdaterView中的位置 long id 单击view的id (2)public void onNothingSelected(AdapterView parent) 这个回调函数在AdapterView中没有选项时调用。...> parent, View view, int position, long id) { // TODO 自动生成的方法存根
> parent, View view, int position, long id) { int ratio = clipArray[position]; ClipDrawable clip...> parent) {} }); sp_clip.setSelection(0); } 可是实际开发中很少会简单地裁剪图形,大家都希望图片尽量完整尽量清晰,好端端的何必要把一张美图拦腰截断呢...> parent, View view, int position, long id) { float ratio = scaleArray[position]; ScaleDrawable...不能通过构造函数指定旋转角度,这就意味着,旋转图形只能通过xml文件定义,不能在代码中动态构造。...> parent, View view, int position, long id) { float ratio = rotateArray[position]; RotateDrawable
android中的下拉菜单联动应用非常普遍,android中的下拉菜单用Spinner就能实现,以下列子通过简单的代码实现三级菜单联动。...parent, View view, int position, long id) { // TODO Auto-generated method stub provinceindex =...AdapterView<?...OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { // TODO Auto-generated method stub adapter3 = new
既然我们知道了,发生的原因,那么我们就将button等控件的在xml布局文件中的属性android:focusable设置为false,就ok了,但通常不这样做,因为要一个一个地修改button太麻烦,...通常可以修改这些button的父容器的descendantFocusability属性为false,是否很方便呢,这样即可以触发onitemclick事件,同时我们在baseadapter实现类中也可以处理...getView(int position, View convertView, ViewGroup parent) { ViewHodler hodler...> parent, View view, int position, long id) { Toast.makeText(A.this, "这是listview...> parent, View view, int position, long id) { Toast.makeText(A.this, "这是
void onItemSelected(AdapterView<?...parent, View view, int position, long id) { //需要在item选中省级的时候,动态的改变市级对应的显示 cityAdapter = new ArrayAdapter...() { @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { //需要在item选中市级的时候,动态的改变县级对应的显示 countyAdapter = new ArrayAdapter...parent, View view, int position, long id) { show.setText("选中的城市为:"+ province[provicePosition] + city[
其实是直接在我们自己写的adapter的getView重载方法中返回连接的view。 ..., android.view.View, int, long) */ @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { } @Override public void onNothingSelected(AdapterView<?...parent, View view, int position, long id) { FriendModel friendItem=(FriendModel) parent.getItemAtPosition...@Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated
在本示例程序中,在布局文件中定义了 GridView,在 Java 代码中设置一个 BaseAdapter 作为 GridView 中的数据。...> parent, View view, int position, long id) {} } AdapterView.OnItemLongClickListener { abstract...> parent, View view, int position, long id) {} } AdapterView.OnItemSelectedListener { abstract...void onItemSelected(AdapterView parent, View view, int position, long id) {} abstract void onNothingSelected(AdapterView<?
一 Gallery基本介绍 二 Gallery使用方法 1.在XML布局文件中添加Gallery控件: <Gallery android:id="@+id/gallery" android...) { return images.get(position); } @Override public long getItemId(int position)...{ return position; } @Override public View getView(int position, View convertView...> parent, View view, int position, long id) { // 处理选中项的操作 } @Override public void...getChildAt(int index):获取指定索引处的子项View。 四 总结 Gallery在Android平台中已经不再被推荐使用,并且可能会对布局和交互造成一些限制。
() { @Override public void onItemSelected(AdapterView parent, View view, int...position, long id) { imageSwitcher.setVisibility(View.VISIBLE); imageSwitcher.setClickable...() { @Override public void onItemClick(AdapterView parent, View view, int position..., long id) { imageSwitcher.setVisibility(View.VISIBLE); imageSwitcher.setClickable...,只是个简单的ImageView罢了,注意设置它的 id 要与活动中调用它的地方相同,这里就不过多描述了。
> parent, View view, int position, long id) { Toast.makeText(GalleryActivity.this, "图片 " + (position...return imgs[position]; } // 获取图片ID @Override public long getItemId(int position) { return position...(0.3f); 透明度为0.3 选中,在ImageAdapter的getView(int position, View convertView, ViewGroup parent)中,设置imageview.setBackgroundColor...> parent, View view, int position, long id) { Toast.makeText(GalleryActivity.this, "点击图片 " + (position...> parent, View view, int position, long id) { Toast.makeText(GalleryActivity.this, "选中图片 " + (position
="@+id/gallery1" android:layout_width="match_parent" android:layout_height="wrap_content"...; import android.view.animation.AnimationUtils; import android.widget.AdapterView; import android.widget.AdapterView.OnItemSelectedListener...parent, View view,int position, long id) { imageSwitcher.setImageResource(imageId[position]);...Object getItem(int position) { return imageId[position]; } @Override public long getItemId...(int position) { return position; } @Override public View getView(int position, View convertView
" 5 android:layout_height="match_parent"> 6 7 <ImageSwitcher android:id="@+id/switcher...position) { 83 return position; 84 } 85 86 public long getItemId(int...position) { 87 return position; 88 } 89 90 public View getView(int...position, View convertView, ViewGroup parent) { 91 ImageView i = new ImageView(mContext)...> parent, View view, int position, 107 long id) { 108 // 当每一个对象被选择时得到图像的id 109
--定义一个GridView组件-- <GridView android:id="@+id/grid01" android:layout_width="match_parent...() { @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { imageSwitcher.setVisibility(View.VISIBLE); imageSwitcher.setClickable...parent, View view, int position, long id) { imageSwitcher.setVisibility(View.VISIBLE); imageSwitcher.setClickable...,只是个简单的ImageView罢了,注意设置它的 id 要与活动中调用它的地方相同,这里就不过多描述了。
--定义一个GridView组件-- <GridView android:id="@+id/grid01" android:layout_width="match_parent" android...() { @Override public void onItemSelected(AdapterView<?...parent, View view, int position, long id) { //显示当前被选中的图片 imageView.setImageResource(photoId[position]...parent) { } }); //添加列表中被单击的监听器 gridView.setOnItemClickListener(new AdapterView.OnItemClickListener()...parent, View view, int position, long id) { //显示被单击的图片 imageView.setImageResource(photoId[position]);
; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import...parent是你当前所操作的Spinner */ @Override public void onItemSelected(AdapterView parent, View view, int position, long id) { switch (parent.getId()){ case R.id.spinner1...public long getItemId(int i) { return 0; } @Override public...View getView(int position, View convertView, ViewGroup viewGroup) { ViewHolder holder ;
--定义一个GridView组件--> <GridView android:id="@+id/grid01" android:layout_width="match_parent...() { @Override public void onItemSelected(AdapterView parent, View view, int position, long id) { //显示当前被选中的图片 imageView.setImageResource...(photoId[position]); } @Override public void onNothingSelected(AdapterView...> parent, View view, int position, long id) { //显示被单击的图片 imageView.setImageResource
="@+id/gallery" 15 android:layout_width="match_parent" 16 android:layout_height="wrap_content...import android.view.animation.AnimationUtils; 11 import android.widget.AdapterView; 12 import android.widget.AdapterView.OnItemSelectedListener...getView(int position, View convertview, ViewGroup parent) { 54 //创建一个ImageView 55...(AdapterView parent, View view, 89 int position, long id) { 90 // TODO Auto-generated
实现方法: 在布局文件中添加图片切换控件ImageSwitcher和画廊视图控件Gallery res/layout/main.xml: <?...在res/values目录中,创建一个名为attr.xml的文件,在该文件中定义一个styleable对象,用于组合多个属性。...getView(int position, View convertView, ViewGroup parent) { ImageView imageView;//声明ImageView的对象 if...(int position) { return position; } //功能:获得当前选项 @Override public Object getItem(int position) {...parent, View v, int position, long id) { imageSwitcher.setImageResource(imageId[position]);//显示选中的图片
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