给EditText中的图片加监听

时间：2023-03-08 20:47:30
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);  */

	 }

}

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