TextView设置不同字段不同点击事件

TextView设置不同字段不同点击事件

转载自:http://www.apkbus.com/blog-160625-59265.html

package com.example.fortextdemo;
 
import java.util.ArrayList;
 
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
 
public class MainActivity extends Activity implements ClickListener {
private TextView textView1;
private ArrayList<String> str_list;
private ArrayList<Integer> color_list;
private ArrayList<Float> text_size_list;
 
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
setData();
}
 
private void initView() {
textView1 = (TextView) findViewById(R.id.textView1);
 
}
 
private void setData() {
str_list = new ArrayList<String>();
color_list = new ArrayList<Integer>();
text_size_list = new ArrayList<Float>();
str_list.add("今天");
str_list.add("天气");
str_list.add("还不错!");
color_list.add(Color.RED);
color_list.add(Color.GREEN);
color_list.add(Color.BLUE);
text_size_list.add(15f);
text_size_list.add(17f);
text_size_list.add(20f);
Util.setText(this, textView1, str_list, color_list, text_size_list,
this);
}
 
@Override
public void click(int position) {
Log.e("position", position + "");
Toast.makeText(this, str_list.get(position), Toast.LENGTH_SHORT).show();
 
}
}
 
 
package com.example.fortextdemo;
 
import java.util.ArrayList;
 
import android.content.Context;
import android.graphics.Color;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextPaint;
import android.text.method.LinkMovementMethod;
import android.text.style.AbsoluteSizeSpan;
import android.text.style.ClickableSpan;
import android.text.style.ForegroundColorSpan;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
 
public class Util {
public static void setText(Context context, TextView tv,
ArrayList<String> str, ArrayList<Integer> color,
ArrayList<Float> text_size_list, ClickListener clickListener) {
// 累加数组所有的字符串为一个字符串
StringBuffer long_str = new StringBuffer();
for (int i = 0; i < str.size(); i++) {
long_str.append(str.get(i));
}
SpannableString builder = new SpannableString(long_str.toString());
// 设置不同字符串的点击事件
for (int i = 0; i < str.size(); i++) {
int p = i;
int star = long_str.toString().indexOf(str.get(i));
int end = star + str.get(i).length();
builder.setSpan(new Clickable(clickListener, p), star, end,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
 
// 设置不同字符串的颜色
 
ArrayList<ForegroundColorSpan> foregroundColorSpans = new ArrayList<ForegroundColorSpan>();
for (int i = 0; i < color.size(); i++) {
foregroundColorSpans.add(new ForegroundColorSpan(color.get(i)));
}
for (int i = 0; i < str.size(); i++) {
int star = long_str.toString().indexOf(str.get(i));
int end = star + str.get(i).length();
builder.setSpan(foregroundColorSpans.get(i), star, end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
// 设置不同字符串的字号
ArrayList<AbsoluteSizeSpan> absoluteSizeSpans = new ArrayList<AbsoluteSizeSpan>();
for (int i = 0; i < color.size(); i++) {
absoluteSizeSpans.add(new AbsoluteSizeSpan(sp2px(context,
text_size_list.get(i))));
}
for (int i = 0; i < str.size(); i++) {
int star = long_str.toString().indexOf(str.get(i));
int end = star + str.get(i).length();
builder.setSpan(absoluteSizeSpans.get(i), star, end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
// 设置点击后的颜色为透明,否则会一直出现高亮
tv.setHighlightColor(Color.TRANSPARENT);
tv.setClickable(true);
tv.setMovementMethod(LinkMovementMethod.getInstance());
tv.setText(builder);
}
 
public static int sp2px(Context context, float spValue) {
final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
return (int) (spValue * fontScale + 0.5f);
}
}
 
class Clickable extends ClickableSpan implements OnClickListener {
private final ClickListener clickListener;
private int position;
 
public Clickable(ClickListener clickListener, int position) {
this.clickListener = clickListener;
this.position = position;
}
 
@Override
public void onClick(View v) {
clickListener.click(position);
}
 
@Override
public void updateDrawState(TextPaint ds) {
// TODO Auto-generated method stub
super.updateDrawState(ds);
ds.setColor(Color.WHITE); // 设置文件颜色
ds.setUnderlineText(false);
}
}
 
源码下载地址:http://www.apkbus.com/android-245433-1-1.html
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