安卓--畫廊（Gallery）組件

標籤：android   gallery   

.xml代碼如下：

<?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/gallery"     android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:gravity="center_vertical"    android:spacing="3px"    /></LinearLayout>

介面ImageGalleryAdapter.java代碼如下：

package org.lxh.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;private int imgRes[] = new int[] { R.drawable.ispic_a, R.drawable.ispic_b,R.drawable.ispic_c, R.drawable.ispic_d };public ImageGalleryAdapter(Context context) {this.context = context;}public int getCount() {return this.imgRes.length;}public Object getItem(int arg0) {return this.imgRes[arg0];}public long getItemId(int positon) {return this.imgRes[positon];}public View getView(int positon, View arg1, ViewGroup arg2) {ImageView img = new ImageView(this.context);img.setImageResource(this.imgRes[positon]);img.setScaleType(ImageView.ScaleType.CENTER);img.setLayoutParams(new Gallery.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));return img;}}

主程式.java代碼如下：

package org.lxh.demo;import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.os.Bundle;import android.text.method.ScrollingMovementMethod;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.view.animation.AnimationUtils;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.Button;import android.widget.Gallery;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.SeekBar;import android.widget.SeekBar.OnSeekBarChangeListener;import android.widget.Spinner;import android.widget.TextView;import android.widget.Toast;import android.widget.ViewSwitcher.ViewFactory;public class Hello extends Activity {private Gallery gallery=null;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState); // 生命週期方法super.setContentView(R.layout.main); // 設定要使用的布局管理器this.gallery=(Gallery)super.findViewById(R.id.gallery);this.gallery.setAdapter(new ImageGalleryAdapter(this));}}

運行效果如下：

安卓--畫廊（Gallery）組件