SpannableString 对一些特有的字符进行事件监听

Dear 丶 2022-08-27 07:49 129阅读 0赞

转载： http://blog.csdn.net/ah200614435/article/details/7914455

package com.maizi.activity;
    
    import com.maizi.demo.R;
    
    import android.app.Activity;
    import android.graphics.Color;
    import android.os.Bundle;
    import android.text.Spannable;
    import android.text.SpannableString;
    import android.text.Spanned;
    import android.text.method.LinkMovementMethod;
    import android.text.style.BackgroundColorSpan;
    import android.text.style.ClickableSpan;
    import android.text.style.ForegroundColorSpan;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.LinearLayout;
    import android.widget.TextView;
    import android.widget.Toast;
    
    public class TextViewJump2Activity extends Activity implements OnClickListener {
    	private TextView mClickableText;
    	private String msg;
    
    	@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);
    
    		SpannableString spanableInfo = new SpannableString(
    				"This is a test, Click Here!");
    		int start = 16;
    		int end = spanableInfo.length();
    		// 链接操作
    		spanableInfo.setSpan(new Clickable(this, "test_one"), start, end,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    		spanableInfo.setSpan(new ForegroundColorSpan(Color.RED), start, end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); // 红色高亮
    
    		spanableInfo.setSpan(new Clickable(this, "test_two"), 0, 2,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    		spanableInfo.setSpan(new ForegroundColorSpan(Color.RED), 0, 2,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); // 红色高亮
    
    		mClickableText.setText(spanableInfo);
    		mClickableText.setMovementMethod(LinkMovementMethod.getInstance());
    	}
    
    	@Override
    	public void onClick(View v) {
    		Toast.makeText(TextViewJump2Activity.this,"Click Success-----" + (String) v.getTag(), Toast.LENGTH_SHORT).show();
    	}
    }
    
    class Clickable extends ClickableSpan implements OnClickListener {
    	private final View.OnClickListener mListener;
    	private String str;
    
    	public Clickable(View.OnClickListener mListener, String str) {
    		this.mListener = mListener;
    		this.str = str;
    	}
    
    	@Override
    	public void onClick(View v) {
    		// 知道点击的是那一个值
    		v.setTag(this.str);
    		mListener.onClick(v);
    	}
    }