Show Image in TextView

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I wish to show Images in TextView. My Images are saved in res/raw directory. I tried using HTML.ImageGetter but could not find a complete reference for same.

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北恋

2021-02-09 20:15

u can use this: setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom)

follow this example u can do the same for textview

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慢半拍i

2021-02-09 20:21

import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.text.Html;
import android.text.Html.ImageGetter;
import android.widget.TextView;

public class TextImageActivity extends Activity {
    int imageNumber = 1; //int to check which image is displayed
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    TextView tvText = (TextView) findViewById(R.id.text);
    final String testContent = "<html><body><b>Test</b><i>Italic</i><br/>"
            + "<img src=\"icon.png\"/>This is like testing if this thing works" + "<img src=\"a.png\"/>" +
                    " in a more elaborate</body></html>";
    tvText.setText(Html.fromHtml(testContent, imgGetter, null));
}

  private ImageGetter imgGetter = new ImageGetter() {

    public Drawable getDrawable(String source) {
            Drawable drawable = null;
            if(imageNumber == 1) {
            drawable = getResources().getDrawable(R.raw.icon);
            ++imageNumber;
            } else drawable = getResources().getDrawable(R.raw.a);
            drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable
                                    .getIntrinsicHeight());

            return drawable;
    }
 };

 }

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说谎

2021-02-09 20:30

Give this a try so you don't have to hack your use of TextView. This will allow you to account for an arbitrary number of images tagged in the source string. it will also allow for adjacent images, and allow for empty leading or trailing text strings.

LinearLayout parent = //get parent layout
String input = //get input
LayoutInflater inflater = this.getLayoutInflater();
int imageIndex = input.indexOf("<image tag begin");
int endIndex = -1; //find index one past the end of the image tag
while (imageIndex > -1){
    TextView tv = inflater.inflate(R.layout.my_textview, null);
    tv.setText(input.substring(0, imageIndex));

    ImageView iv = inflater.inflate(R.layout.my_imageview, null);
    String imgTag = input.substring(imageIndex,endIndex);
    iv.setImageResource(-1); //or however you set your image from the tag

    parent.addView(tv); parent.addView(iv);

    input = input.substring(endIndex);
    }

This should dynamically create all the imageviews you need, and parse your inputs accordingly. if you want to store the source strings in the DB, that's probably fine.

Keeping text in textviews and images in imageviews will make your life far easier if you have to set styles/modify attributes on anything involved. Sibling views are, in general, better than hacking the wrong kind of information/too much information into one Layout element.

BTW, i inflated custom XML layouts for imageview and textview, just in case you wanted to provide some custom style settings across all instances of them. you can just generate normal Android textviews and imageviews if those are sufficient.

This was my initial solution that only works with a single image maximum.

String input = //whatever
boolean hasImage = //find image tag
int imageBegin = //find index where image tag begins
int imageEnd = //find index one past where image tag ends
String leadingText = input.substring(0,imageBegin);
String imageTag = input.substring(imageBegin, imageEnd);
String trailingText = input.substring(imageEnd, input.length());

((TextView)findViewById(R.id.leading_textview)).setText(leadingText);
if (hasImage){
    //use imageTag to set content of Image View)
    findViewById(R.id.image_view_id).setVisibility(View.VISIBLE);
    ((TextView)findViewById(R.id.trailing_textview)).setText(trailingText);
}

If you could have more than one image embedded, you'll have to dynamically create ImageViews and trailing TextViews, and add them to the parent of the layout in question.

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