Android的AdapterViewFlipper和Stackview-android学习之旅（三十）

AdapterViewFlipper简介

AdapterViewFlipper继承了AdapterViewAnimater。每次只能显示一个组件，用showPrevious（）和showNext（）来显示这些组件上一个和下一个。还有startFlipping（）控制它自动播放。

AdapterViewFlipper属性

代码实例

package peng.liu.testview;

import android.app.Activity;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterViewFlipper;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;


public class MainActivity extends Activity {
    private int[] imageIds = new int[]{
        R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher
    };
    private AdapterViewFlipper flipper;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        flipper = (AdapterViewFlipper) findViewById(R.id.flipper);
        BaseAdapter adapter = new BaseAdapter() {
            @Override
            public int getCount() {
                return 0;
            }

            @Override
            public Object getItem(int i) {
                return null;
            }

            @Override
            public long getItemId(int i) {
                return 0;
            }

            @Override
            public View getView(int i, View view, ViewGroup viewGroup) {
               ImageView image = new ImageView(MainActivity.this);
               image.setImageResource(imageIds[i]);
                image.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
                image.setScaleType(ImageView.ScaleType.FIT_XY);
                return image;
            }
        };

    }
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    android:orientation="vertical">
    <AdapterViewFlipper
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/flipper"
        android:flipInterval="5000"
        tools:ignore="NewApi" />
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/previous"
            android:onClick="previous"
            android:text="previous"/>

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/next"
            android:onClick="next"
            android:text="next"/>
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/auto"
            android:onClick="auto"
            android:text="auto"/>
        </LinearLayout>
</LinearLayout>

布局代码

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    android:orientation="vertical">
    <AdapterViewFlipper
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/flipper"
        android:flipInterval="5000"
        tools:ignore="NewApi" />
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/previous"
            android:onClick="previous"
            android:text="previous"/>

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/next"
            android:onClick="next"
            android:text="next"/>
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/auto"
            android:onClick="auto"
            android:text="auto"/>
        </LinearLayout>
</LinearLayout>

StackView简介

StackView也是继承于AdapterViewAnimator，它是以重叠在一起的，使用showPrevious（）和showNext（）分别显示上一张和下一张。属性类似AdapterViewFlipper

实例

package peng.liu.testview;

import android.annotation.TargetApi;
import android.app.Activity;
import android.content.res.TypedArray;
import android.os.Build;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterViewFlipper;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.SimpleAdapter;
import android.widget.StackView;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


public class MainActivity extends Activity {
    private int[] imageIds = new int[]{
        R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher
    };
    private StackView stack;
    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        stack = (StackView) findViewById(R.id.stack);
        List<Map<String,Object>> listItems = new ArrayList<Map<String,Object>>();
        for (int i = 0;i<imageIds.length;i++){
            Map<String ,Object> item = new HashMap<String,Object>();
            item.put("image",imageIds[i]);
            listItems.add(item);
        }
        SimpleAdapter adapter = new SimpleAdapter(this,listItems,R.layout.simple_item,new String[]{"image"},new int[]{R.id.image01});
        stack.setAdapter(adapter);
    }

}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    android:orientation="vertical">
    <StackView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/stack"
        android:loopViews="true"
        tools:ignore="NewApi" />
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/previous"
            android:text="previous"
            android:onClick="previous"/>
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/next"
            android:text="next"
            android:onClick="next"/>
        </LinearLayout>
</LinearLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    android:orientation="vertical">
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/image01"/>
</LinearLayout>