android的GridView和Gallery-创新互联
GridView:
创新互联长期为上千客户提供的网站建设服务,团队从业经验10年,关注不同地域、不同群体,并针对不同对象提供差异化的产品和服务;打造开放共赢平台,与合作伙伴共同营造健康的互联网生态环境。为乐清企业提供专业的成都网站建设、成都做网站,乐清网站改版等技术服务。拥有十多年丰富建站经验和众多成功案例,为您定制开发。activity_main.xml
MainActivity
package com.example.gridview;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class MainActivity extends Activity {
private GridView gridView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gridView=(GridView) findViewById(R.id.gridView1_1);
MyImageAdapter myImageAdapter=new MyImageAdapter(this);
gridView.setAdapter(myImageAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
static class MyImageAdapter extends BaseAdapter{
private Context ct;
//要显示的图片资源
private int [] p_w_picpaths={
R.drawable.th_seismometer_1,
R.drawable.th_skippylite,
R.drawable.th_sms_hey_blue,
R.drawable.th_ssh,
R.drawable.th_things1,
R.drawable.th_thisday,
R.drawable.th_seismometer_1,
R.drawable.th_skippylite,
R.drawable.th_sms_hey_blue,
R.drawable.th_ssh,
R.drawable.th_things1,
R.drawable.th_thisday};
MyImageAdapter(Context ct){
this.ct=ct;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return p_w_picpaths.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ImageView p_w_picpathView;
if(convertView==null){
p_w_picpathView=new ImageView(ct);
//设置图片的宽和高
p_w_picpathView.setLayoutParams(new GridView.LayoutParams(85, 85));
//设置拉伸或截取方式
p_w_picpathView.setScaleType(ImageView.ScaleType.CENTER_CROP);
p_w_picpathView.setPadding(8, 8, 8, 8);
}else{
p_w_picpathView=(ImageView)convertView;
}
p_w_picpathView.setImageResource(p_w_picpaths[position]);
return p_w_picpathView;
}
}
}Gallery:
activity_main.xml
MainActivity
package com.example.gallery;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
public class MainActivity extends Activity {
private Gallery gallery;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gallery=(Gallery) findViewById(R.id.gallery1_1);
MyGalleryAdapter myGalleryAdapter=new MyGalleryAdapter();
gallery.setAdapter(myGalleryAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
class MyGalleryAdapter extends BaseAdapter{
private int [] p_w_picpaths={
R.drawable.th_seismometer_1,
R.drawable.th_skippylite,
R.drawable.th_sms_hey_blue,
R.drawable.th_ssh,
R.drawable.th_things1,
R.drawable.th_thisday,
R.drawable.th_seismometer_1,
R.drawable.th_skippylite,
R.drawable.th_sms_hey_blue,
R.drawable.th_ssh,
R.drawable.th_things1,
R.drawable.th_thisday};
@Override
public int getCount() {
// TODO Auto-generated method stub
return p_w_picpaths.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ImageView p_w_picpathView;
if(convertView==null){
p_w_picpathView=new ImageView(MainActivity.this);
}else{
p_w_picpathView=(ImageView)convertView;
}
p_w_picpathView.setImageResource(p_w_picpaths[position]);
return p_w_picpathView;
}
}
}

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