在TextView中显示图片

最新推荐文章于 2017-03-27 13:58:16 发布

原创最新推荐文章于 2017-03-27 13:58:16 发布 · 689 阅读

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本文介绍如何利用XML布局文件在Android应用中显示图文信息，通过自定义ImageGetter实现图片适配，增强用户体验。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/tv1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
       />

</RelativeLayout>

package com.example.textviewshowimg;

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

public class MainActivity extends Activity {

	private TextView tv1;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		setupViews();
	}

	private void setupViews() {
		tv1 = (TextView) findViewById(R.id.tv1);
		tv1.append(Html.fromHtml("<img src='" + R.drawable.u + "' />",
				imageGetter, null));
	}

	ImageGetter imageGetter = new ImageGetter() {

		@Override
		public Drawable getDrawable(String source) {
			int id = Integer.parseInt(source);
			Drawable drawable = getResources().getDrawable(id);
			drawable.setBounds(0, 0, drawable.getIntrinsicWidth()/2,drawable.getIntrinsicHeight()/2);
			return drawable;
		}
	};
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}

效果：