Question

我有这个代码和它成功运行但我想在它上面添加触摸事件来更改图像以及放大和缩小效果.... 这是我的代码：

package com.conn;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageSwitcher;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ViewSwitcher.ViewFactory;

public class image_slider extends Activity implements ViewFactory {

    Integer pics[] = { R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d,
            R.drawable.e };

    ImageSwitcher iSwitcher;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        iSwitcher = (ImageSwitcher) findViewById(R.id.ImageSwitcher01);
        iSwitcher.setFactory(this);
        iSwitcher.setInAnimation(AnimationUtils.loadAnimation(this,
                android.R.anim.fade_in));
        iSwitcher.setOutAnimation(AnimationUtils.loadAnimation(this,
                android.R.anim.fade_out));

        Gallery gallery = (Gallery) findViewById(R.id.Gallery01);
        gallery.setAdapter(new ImageAdapter(this));
        gallery.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                iSwitcher.setImageResource(pics[arg2]);
            }
        });
    }

    public class ImageAdapter extends BaseAdapter {

        private Context ctx;

        public ImageAdapter(Context c) {
            ctx = c; 
        }

        @Override
        public int getCount() {

            return pics.length;
        }

        @Override
        public Object getItem(int arg0) {

            return arg0;
        }

        @Override
        public long getItemId(int arg0) {

            return arg0;
        }

        @Override
        public View getView(int arg0, View arg1, ViewGroup arg2) {

            ImageView iView = new ImageView(ctx);
            iView.setImageResource(pics[arg0]);
            iView.setScaleType(ImageView.ScaleType.FIT_XY);
            iView.setLayoutParams(new Gallery.LayoutParams(150, 150));
            return iView;
        }

    }

    @Override
    public View makeView() {
        ImageView iView = new ImageView(this);
        iView.setScaleType(ImageView.ScaleType.FIT_CENTER);
        iView.setLayoutParams(new 
                ImageSwitcher.LayoutParams(
                        LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
        iView.setBackgroundColor(0xFF000000);
        return iView;
    }
}

Answer 1

通过下面的链接，它具有您需要的所有功能。

PinchZooming

http://code.google.com/p/android-pinch/wiki/PinchImageView http://blog.sephiroth.it/2011/04/04/imageview-zoom-and-scroll/

一根手指缩放

http://blogs.sonyericsson.com/wp/2010/05/18/android-one-finger-zoom-tutorial-part-1/

希望这有帮助。

我已根据您的需要修改了类。使用此PinchImageView而不是ImageView ..所以简单

在这里查看... http：//pastebin.com/eRH2D2nF

谢谢.. 吉瑞

图像切换器上的触摸事件

1 个答案: