缩放具有onTouch Android效果的图像

问题描述

我正在尝试在此用于ontouch图像缩放和触摸移动屏幕缩小的其他部分，因此我只是找到了此链接并尝试在代码中实现，但是出现类似

i am trying one example from Here for ontouch image zoom and touch on other section of mobile screen zoom-out so simply i have find this link and try to implement in code but there are something error like

04-06 10:58:53.618: ERROR/AndroidRuntime(493): FATAL EXCEPTION: main
04-06 10:58:53.618: ERROR/AndroidRuntime(493): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.Zoom_imageview/com.Zoom_imageview.Zoom_imageviewActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class com.sonyericsson.zoom.ImageZoomView
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.os.Handler.dispatchMessage(Handler.java:99)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.os.Looper.loop(Looper.java:123)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.ActivityThread.main(ActivityThread.java:4627)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at java.lang.reflect.Method.invokeNative(Native Method)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at java.lang.reflect.Method.invoke(Method.java:521)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at dalvik.system.NativeStart.main(Native Method)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class com.sonyericsson.zoom.ImageZoomView
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:576)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.Activity.setContentView(Activity.java:1647)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at com.Zoom_imageview.Zoom_imageviewActivity.onCreate(Zoom_imageviewActivity.java:38)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-06 10:58:53.618: ERROR/AndroidRuntime(493):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)

代码:

package com.Zoom_imageview;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

import com.Zoom_imageview.zoom.ImageZoomView;
import com.Zoom_imageview.zoom.SimpleZoomListener;
import com.Zoom_imageview.zoom.ZoomState;
import com.Zoom_imageview.zoom.SimpleZoomListener.ControlType;

public class Zoom_imageviewActivity extends Activity {
    /** Called when the activity is first created. */
    private static final int MENU_ID_ZOOM = 0;

    /** Constant used as menu item id for setting pan control type */
    private static final int MENU_ID_PAN = 1;

    /** Constant used as menu item id for resetting zoom state */
    private static final int MENU_ID_RESET = 2;

    /** Image zoom view */
    private ImageZoomView mZoomView;

    /** Zoom state */
    private ZoomState mZoomState;

    /** Decoded bitmap image */
    private Bitmap mBitmap;
    private SimpleZoomListener mZoomListener;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        try
        {
        mZoomState = new ZoomState();

        mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon);

        mZoomListener = new SimpleZoomListener();
        mZoomListener.setZoomState(mZoomState);

        mZoomView = (ImageZoomView)findViewById(R.id.zoomview);
        mZoomView.setZoomState(mZoomState);
        mZoomView.setImage(mBitmap);
        mZoomView.setOnTouchListener(mZoomListener);

        resetZoomState();
        }catch (Exception e) {
            // TODO: handle exception
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        mBitmap.recycle();
        mZoomView.setOnTouchListener(null);
        mZoomState.deleteObservers();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        menu.add(Menu.NONE, MENU_ID_ZOOM, 0, R.string.menu_zoom);
        menu.add(Menu.NONE, MENU_ID_PAN, 1, R.string.menu_pan);
        menu.add(Menu.NONE, MENU_ID_RESET, 2, R.string.menu_reset);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case MENU_ID_ZOOM:
                mZoomListener.setControlType(ControlType.ZOOM);
                break;

            case MENU_ID_PAN:
                mZoomListener.setControlType(ControlType.PAN);
                break;

            case MENU_ID_RESET:
                resetZoomState();
                break;
        }

        return super.onOptionsItemSelected(item);
    }

    /**
     * Reset zoom state and notify observers
     */
    private void resetZoomState() {
        mZoomState.setPanX(0.5f);
        mZoomState.setPanY(0.5f);
        mZoomState.setZoom(1f);
        mZoomState.notifyObservers();
    }




}

XML ::

<?xml version="1.0" encoding="utf-8"?>
<com.sonyericsson.zoom.ImageZoomView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/zoomview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    />

请帮帮我...

推荐答案

<?xml version="1.0" encoding="utf-8"?>
<com.sonyericsson.zoom.ImageZoomView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/zoomview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    />

将其更改为

 <?xml version="1.0" encoding="utf-8"?>
    <com.Zoom_imageview.zoom.ImageZoomView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/zoomview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        />

或如果您尚未在项目中添加ImageZoomView类，则请按示例此处

or if u have not added a class ImageZoomView in your project then plz add it as in example Here

这篇关于缩放具有onTouch Android效果的图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！