Question

我正在显示来自sqlite db的数据。数据库中的数据存储在html中。数据包含用于显示图像的图像标签。我能够显示数据但是如何显示图像呢？我的图像存储在服务器中。

我的代码：

((TextView)view.findViewById(R.id.tv_text)).setText(Html.fromHtml(listItem.gettext()+""));

从上面一行我将显示数据库中的数据。现在我需要显示服务器中的图像。我怎么能这样做？

Answer 1

试试我的代码。希望它有所帮助

TextView mDetail;
ProgressBar mProgressBar;
String body;
Handler handler;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.act_recipe_detail);
    getActionBar().setDisplayHomeAsUpEnabled(true);

    if (this.getIntent().getStringExtra("body") != null)
        body = this.getIntent().getStringExtra("body");

    mDetail = (TextView) this.findViewById(R.id.tv_recipe_detail);

    if (this.getIntent().getStringExtra("body") != null)
        body = this.getIntent().getStringExtra("body");

    mDetail.setText(Html.fromHtml(body));

    mProgressBar = (ProgressBar) this.findViewById(R.id.bar);
    mDetail.setMovementMethod(ScrollingMovementMethod.getInstance());// 皛
    handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            if (msg.what == 0x101) {
                mProgressBar.setVisibility(View.GONE);
                mDetail.setText((CharSequence) msg.obj);
            }
            super.handleMessage(msg);
        }
    };
    Thread t = new Thread(new ImageTask());
    t.start();
    mProgressBar.setVisibility(View.VISIBLE);

}
class ImageTask implements Runnable {
    Message msg = Message.obtain();

    @Override
    public void run() {

        ImageGetter imageGetter = new ImageGetter() {
            @Override
            public Drawable getDrawable(String source) {
                // TODO Auto-generated method stub
                URL url;
                Drawable drawable = null;
                try {
                    url = new URL(source);
                    drawable = Drawable.createFromStream(
                            url.openStream(), null);

                    int scale_y = MAX_HEIGHT/drawable.getIntrinsicHeight();
                    drawable.setBounds(0, 0,
                            drawable.getIntrinsicWidth()*scale_y,
                            drawable.getIntrinsicHeight()*scale_y);

                } catch (MalformedURLException e) {
                    Log.e(TAG, "MalformedURLException" + e.toString());
                } catch (IOException e) {
                    Log.e(TAG, "IOException" + e.toString());
                }
                return drawable;
            }
        };
        CharSequence test = Html.fromHtml(body, imageGetter, null);
        msg.what = 0x101;
        msg.obj = test;
        handler.sendMessage(msg);
    }
}

将html标签应用于android中的textview

1 个答案: