Android：如何在縮放後點擊框架佈局中的按鈕

Question

我正在構建我的第一個android項目/第一個java項目。我試圖用多個按鈕來繪製一個圖像，用戶可以點擊它。然而，在放大按鈕放大後，如我所希望的那樣，並保持其與背景中圖像的相對位置，但不再響應onClickListener。

XML代碼

<FrameLayout 
    android:id="@+id/DeckLayout" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:clickable="true" 
    android:gravity="center_horizontal" > 

    <!-- <CustomDrawableView android:layout_height="fill_parent" 
       android:layout_width="fill_parent" 
       /> --> 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="match_parent" 
     android:layout_height="420dp" 
     android:clickable="false" 
     android:scaleType="fitCenter" 
     android:src="@drawable/deck12" /> 

    <Button 
     android:id="@+id/QM2_12002" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:clickable="true" 
     android:gravity="center"/> 


</FrameLayout> 
<FrameLayout 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:gravity="center_horizontal" > 
    <Button 
      android:id="@+id/zoom_in" 
      android:layout_width="102dp" 
      android:layout_height="wrap_content" 
      android:gravity="center" 
      android:text="@string/zoom_in" /> 
</FrameLayout> 
</LinearLayout> 

Java代碼的

package com.sgs.hotelguru; 

import android.app.Activity; 
import android.content.Context; 
import android.content.Intent; 
import android.graphics.PointF; 
import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentPagerAdapter; 
import android.support.v4.app.NavUtils; 
import android.support.v4.view.ViewPager; 
import android.util.Log; 
import android.view.Gravity; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.view.MotionEvent; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.view.View.OnTouchListener; 
import android.view.ViewGroup; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 




public class MapsExample extends Activity { 

    View mainView = null; 
    final float Zoom_max = 5f; 
    private static final String TAG = "Die Karte"; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_maps_example); 
     mainView =findViewById(R.id.DeckLayout); 

     //Button buttonZoomOut = (Button)findViewById(R.id.zoom_out); 
     //Button buttonNormal = (Button)findViewById(R.id.reset); 
     Button buttonZoomIn = (Button)findViewById(R.id.zoom_in); 

     /*buttonZoomOut.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
     zoom(0.5f,0.5f,new PointF(0,0));  
     } 
     }); 
     buttonNormal.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
     zoom(1f,1f,new PointF(0,0)); 
     } 
     });*/ 
     buttonZoomIn.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
     zoom(new PointF(0,0)); 
     } 
     }); 
     mainView.post(new Runnable() { 
      // Post in the parent's message queue to make sure the parent 
      // lays out its children before you call getHitRect() 
      @Override 
      public void run() { 
       // The bounds for the delegate view (an ImageButton 
       // in this example) 
       Button QM2_12002 = (Button)findViewById(R.id.QM2_12002); 
       QM2_12002.setX(300); 
       QM2_12002.setY(400); 
       QM2_12002.setEnabled(true); 
       QM2_12002.setOnClickListener(new View.OnClickListener() { 
        @Override 
        public void onClick(View view) { 
         Toast.makeText(MapsExample.this, 
           "YOU CLICKY THE BUTTON YAY!", 
           Toast.LENGTH_SHORT).show(); 
        } 
       }); 

      } 
     }); 
    } 


    /** zooming is done from here */ 
    public void zoom(PointF pivot){ 
     mainView.setPivotX(pivot.x); 
     mainView.setPivotY(pivot.y); 
     float workScaleX = mainView.getScaleX(); 
     float workScaleY = mainView.getScaleY(); 
     if(workScaleX<Zoom_max) 
     { 
     mainView.setScaleX(workScaleX+1f); 
     mainView.setScaleY(workScaleY+1f); 
     } 
    } 

    } 

Answer 1

// try this 
public class MainActivity extends Activity { 

    View mainView; 
    Button QM2_12002; 
    Button buttonZoomIn; 
    final float Zoom_max = 5f; 
    private static final String TAG = "Die Karte"; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_maps_example); 
     mainView =findViewById(R.id.DeckLayout); 

     //Button buttonZoomOut = (Button)findViewById(R.id.zoom_out); 
     //Button buttonNormal = (Button)findViewById(R.id.reset); 
     buttonZoomIn = (Button)findViewById(R.id.zoom_in); 
     QM2_12002 = (Button)findViewById(R.id.QM2_12002); 

     /*buttonZoomOut.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
     zoom(0.5f,0.5f,new PointF(0,0)); 
     } 
     }); 
     buttonNormal.setOnClickListener(new OnClickListener() { 

     @Override 
     public void onClick(View v) { 
     zoom(1f,1f,new PointF(0,0)); 
     } 
     });*/ 
     buttonZoomIn.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       zoom(new PointF(0,0)); 
      } 
     }); 
     QM2_12002.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       Toast.makeText(MainActivity.this, 
         "YOU CLICKY THE BUTTON YAY!", 
         Toast.LENGTH_SHORT).show(); 
      } 
     }); 
     mainView.post(new Runnable() { 
      // Post in the parent's message queue to make sure the parent 
      // lays out its children before you call getHitRect() 
      @Override 
      public void run() { 
       // The bounds for the delegate view (an ImageButton 
       // in this example) 
       QM2_12002.setX(300); 
       QM2_12002.setY(400); 
       QM2_12002.setEnabled(true); 
      } 
     }); 
    } 


    /** zooming is done from here */ 
    public void zoom(PointF pivot){ 
     mainView.setPivotX(pivot.x); 
     mainView.setPivotY(pivot.y); 
     float workScaleX = mainView.getScaleX(); 
     float workScaleY = mainView.getScaleY(); 
     if(workScaleX<Zoom_max) 
     { 
      mainView.setScaleX(workScaleX+1f); 
      mainView.setScaleY(workScaleY+1f); 
     } 
    } 
}