给EditText中的图片加监听

女爷i 2022-01-05 09:41 226阅读 0赞

package com.example.helloword;
    
    import android.app.Activity;
    import android.content.Context;
    import android.content.Intent;
    import android.graphics.Bitmap;
    import android.graphics.drawable.BitmapDrawable;
    import android.net.Uri;
    import android.os.Bundle;
    import android.provider.MediaStore;
    import android.text.Editable;
    import android.text.Spannable;
    import android.text.SpannableString;
    import android.text.Spanned;
    import android.text.style.ImageSpan;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.view.inputmethod.InputMethodManager;
    import android.widget.EditText;
    import android.widget.Toast;
    
    public class MainActivity extends Activity {
    	EditText txtEdit;
    	ImageSpan imageSpan;
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.activity_main);
    		txtEdit = (EditText) findViewById(R.id.et_button);
    		txtEdit.setOnClickListener(textListener);
    		
    		imageSpan = new ImageSpan(this, R.drawable.ic_launcher);  
    		SpannableString ss = new SpannableString("photo");  
    		ss.setSpan(imageSpan, 0, "photo".length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);  
    		Editable editable = txtEdit.getEditableText();  
    		int selectedIndex = txtEdit.getSelectionStart();  
    		ss.getSpans(0, ss.length(), ImageSpan.class);  
    		if (selectedIndex < 0)  
    		 editable.append(ss);  
    		else  
    		 editable.insert(selectedIndex, ss);  
    	}
    	
    	private OnClickListener textListener = new OnClickListener()  
    	 {  
    	  @Override  
    	  public void onClick(View v)  
    	  {   //关闭软键盘  
    		   InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);  
    		   imm.hideSoftInputFromWindow(txtEdit.getWindowToken(), 0);   
    		   Spanned s = txtEdit.getText();  
    		   ImageSpan[] imageSpans = s.getSpans(0, s.length(), ImageSpan.class);  
    		   int selectionStart = txtEdit.getSelectionStart();  
    		   for (ImageSpan span : imageSpans)  
    		   {  
    		    int start = s.getSpanStart(span);  
    		    int end = s.getSpanEnd(span);  
    		    if (selectionStart >= start && selectionStart < end)//找到图片  
    		    {  
    		     Bitmap bitmap = ((BitmapDrawable) span.getDrawable()).getBitmap();  
    		     viewPicture(bitmap);  
    		     return;  
    		    }  
    		   }  
    		 //打开软键盘     
    		   imm.showSoftInput(txtEdit, 0);  
    	  }  
    	 };
    	 
    	 private void viewPicture(Bitmap bitmap)  
    	 {  
    		 System.out.println("*******************************");
    	 /* if (bitmap == null)  
    	   return; 
    	//将由图片生成Uri  
    	  Uri uri = Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, null, null));  
    	  Intent intent = new Intent(Intent.ACTION_VIEW);  
    	  intent.setDataAndType(uri, "image/*");  
    	  startActivity(intent);  */
    	 }  
    }

转载于:https://www.cnblogs.com/lanzhi/p/6469788.html