Android textview中某些字段设置点击监听

最新推荐文章于 2022-07-25 18:03:01 发布

路西法爱米迦勒

最新推荐文章于 2022-07-25 18:03:01 发布

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本文介绍了一个简单的Android应用程序，用于创建可点击的文本。通过使用`ClickableSpan`和`LinkMovementMethod`，文章展示了如何使部分文本变为可点击链接，并在点击时触发特定操作。

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package android.alex.clickabletext;
 
import android.app.Activity;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.method.LinkMovementMethod;
import android.text.style.ClickableSpan;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
 
public class ClickableText extends Activity {
  /** Called when the activity is first created. */
  private TextView mClickableText;
  @Override
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  LinearLayout layout = new LinearLayout(this);
  mClickableText = new TextView(this);
  mClickableText.setClickable(true);
  mClickableText.setTextSize(20);
 
  layout.addView(mClickableText);
  setContentView(layout);
  mClickableText.setText(getClickableSpan());
  mClickableText.setMovementMethod(LinkMovementMethod.getInstance());
  }
 
  private SpannableString getClickableSpan()
  {
  View.OnClickListener l = new View.OnClickListener(){
  @Override
  public void onClick(View v)
  {
  Toast.makeText(ClickableText.this, "Click Success", Toast.LENGTH_SHORT).show();
  }
  };
 
  SpannableString spanableInfo = new SpannableString("This is a test, Click Me");
  int start = 16;
  int end = spanableInfo.length();
  spanableInfo.setSpan(new Clickable(l), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
  return spanableInfo;
  }
}
 
class Clickable extends ClickableSpan implements OnClickListener{
  private final View.OnClickListener mListener;
 
  public Clickable(View.OnClickListener l){
  mListener = l;
  }
 
  @Override
  public void onClick(View v){
  mListener.onClick(v);
  }
}