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我是图像概念的新手，我无法制作不同图像视图的两张图像，两张图像都不起作用只有一张位于顶部的图片工作正常，但另一张无法移动或拖动任何人都可以帮忙

package com.nst.touch;

import java.io.ByteArrayOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.FloatMath;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ImageView;

public class MainActivity extends Activity implements OnTouchListener {

    private static final String TAG = "Touch";

    Matrix matrix = new Matrix();
    Matrix savedMatrix = new Matrix();

    static final int NONE = 0;
    static final int DRAG = 1;
    static final int ZOOM = 2;
    int mode = NONE;

    PointF start = new PointF();
    PointF mid = new PointF();
    float oldDist = 1f;

    String fileName, time;

    ImageView view;
    ImageView view2;
    private int CAPTURE_IMAGE = 111;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        view = (ImageView) findViewById(R.id.pinchView);
        view.setOnTouchListener(this);

        view2 = (ImageView) findViewById(R.id.pinchPant);
        view2.setOnTouchListener(this);
    }

    public void takeShirt(View view) {
        Intent pic = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        time = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        fileName = "fab" + time + ".jpg";
        startActivityForResult(pic, CAPTURE_IMAGE);

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (requestCode == CAPTURE_IMAGE) {
            Bitmap pic = (Bitmap) data.getExtras().get("data");

            view.setImageBitmap(pic);

            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            pic.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
        }
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        // TODO Auto-generated method stub
        ImageView view = (ImageView) v;

        dumpEvent(event);

        switch (event.getAction() & MotionEvent.ACTION_MASK) {
        case MotionEvent.ACTION_DOWN:

            savedMatrix.set(matrix);
            start.set(event.getX(), event.getY());
            Log.d(TAG, "mode=DRAG");
            mode = DRAG;
            break;
        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_POINTER_UP:
            mode = NONE;
            Log.d(TAG, "mode=NONE");
            break;
        case MotionEvent.ACTION_MOVE:
            if (mode == DRAG) {
                matrix.set(savedMatrix);
                matrix.postTranslate(event.getX() - start.x, event.getY()
                        - start.y);
            } else if (mode == ZOOM) {
                float newDist = spacing(event);
                Log.d(TAG, "newDist =" + newDist);
                if (newDist > 10f) {
                    matrix.set(savedMatrix);
                    float scale = newDist / oldDist;
                    matrix.postScale(scale, scale, mid.x, mid.y);
                }
            }
            break;
        case MotionEvent.ACTION_POINTER_DOWN:
            oldDist = spacing(event);
            Log.d(TAG, "oldDist=" + oldDist);
            if (oldDist > 10f) {
                savedMatrix.set(matrix);
                midpoint(mid, event);
                mode = ZOOM;
                Log.d(TAG, "mode = ZOOM");
            }
            break;
        }

        view.setImageMatrix(matrix);
        return true;
    }

    private void midpoint(PointF point, MotionEvent event) {
        // TODO Auto-generated method stub
        float x = event.getX(0) - event.getX(1);
        float y = event.getY(0) - event.getY(1);
        point.set(x / 2, y / 2);
    }

    private float spacing(MotionEvent event) {
        // TODO Auto-generated method stub
        float x = event.getX(0) - event.getX(1);
        float y = event.getY(0) - event.getY(1);
        return FloatMath.sqrt(x * x + y * y);
    }

    private void dumpEvent(MotionEvent event) {
        // TODO Auto-generated method stub
        String names[] = { "DOWN", "UP", "MOVE", "CANCEL", "OUTSIDE",
                "POINTER_DOWN", "POINTER_UP", "7?", "8?", "9?" };
        StringBuilder sb = new StringBuilder();
        int action = event.getAction();
        int actionCode = action & MotionEvent.ACTION_MASK;
        sb.append("event ACTION_").append(names[actionCode]);
        if (actionCode == MotionEvent.ACTION_POINTER_DOWN
                || actionCode == MotionEvent.ACTION_POINTER_UP) {
            sb.append("(pid ").append(
                    action >> MotionEvent.ACTION_POINTER_ID_SHIFT);
            sb.append(")");
        }
        sb.append("[");
        for (int i = 0; i < event.getPointerCount(); i++) {
            sb.append("#").append(i);
            sb.append("(pid ").append(event.getPointerId(i));
            sb.append(")=").append((int) event.getX(i));
            sb.append(",").append((int) event.getY(i));
            if (i + 1 < event.getPointerCount()) {
                sb.append(";");
            }
            sb.append("]");
            Log.d(TAG, sb.toString());
        }
    }

}

我无法捏第二个视图

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1 回答 1

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您处理的方式和我的回答可能不同，缩放视图组项目。您应该为父视图组创建缩放，即）视图组。通过下面提到的链接

缩放视图组

将此自定义框架布局作为您拥有的视图的父级。现在您可以缩放此视图组中存在的所有视图。

于 2013-12-26T11:59:56.193 回答