android中TextView分段显示不同颜色 字体 时间

例子1：

设置部分文字背景高亮显示：

Java代码publicclassHighLightActivityextendsActivity{ Stringstrs="我的心太乱了，给我点空白。"; TextViewtextview;intstart=3;intend=5; /**Calledwhentheactivityisfirstcreated.*/ @OverridepublicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState); setContentView(R.layout.high_light); textview=(TextView)findViewById(R.id.textview); SpannableStringBuilderstyle=newSpannableStringBuilder(strs); style.setSpan(newBackgroundColorSpan(Color.RED),start,end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); textview.setText(style); } }

同时设置文字和背景高亮显示：

Java代码publicclassHighLightActivityextendsActivity{ Stringstrs="我的心太乱了，给我点空白。"; TextViewtextview;intstart=3;intend=5; /**Calledwhentheactivityisfirstcreated.*/ @OverridepublicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState); setContentView(R.layout.high_light); textview=(TextView)findViewById(R.id.textview); SpannableStringBuilderstyle=newSpannableStringBuilder(strs); style.setSpan(newBackgroundColorSpan(Color.RED),start,end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); style.setSpan(newForegroundColorSpan(Color.RED),7,9,Spannable.SPAN_EXCLUSIVE_INCLUSIVE); textview.setText(style); } }

参数说明：

Spannable.SPAN_EXCLUSIVE_EXCLUSIVE

API里面解释：Spans of type SPAN_EXCLUSIVE_EXCLUSIVE do not expand to include text inserted at either their starting or ending point. They can never have a length of 0 and are automatically removed from the buffer if all the text they cover is removed.

即在原文本头或尾追加新文本的样式不受原文本样式影响，原文本高亮，新追加文本不高亮。

Spannable.SPAN_EXCLUSIVE_INCLUSIVE

API里面解释：Non-0-length spans of type SPAN_INCLUSIVE_EXCLUSIVE expand to include text inserted at their ending point but not at their starting point. When 0-length, they behave like points.

即在原文本尾追加新文本的样式受原文本样式影响，原来文本尾高亮，新追加文本也高亮

例子2：

功能:实现在一个TextView里显示了一行字符串，需要这个串里字符显示不同颜色.

代码如下:

attrs.xml文件:

第二种方式:

String newMessageInfo = "<font color='red'><b>" + 红色内容

+ "</b></font>TextView学习显示不同颜色";

mTextView.setTextView(Html.fromHtml(newMessageInfo));

例子3：

SpannableString ss = new SpannableString( "红色打电话粗体删除线绿色下划线图片:.");

ss.setSpan(new ForegroundColorSpan(Color.RED), 0, 2,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

ss.setSpan(new URLSpan("tel:4155551212"), 2, 5,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

ss.setSpan(new StyleSpan(Typeface.BOLD), 5, 7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

ss.setSpan(new StrikethroughSpan(), 7, 10,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

ss.setSpan(new UnderlineSpan(), 10, 16,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

ss.setSpan(new ForegroundColorSpan(Color.GREEN), 10, 15, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

Drawable d = getResources().getDrawable(R.drawable.icon48x48_1);

d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());

ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);

ss.setSpan(span, 18, 19, Spannable.SPAN_INCLUSIVE_EXCLUSIVE);

TextView t4 = (TextView) findViewById(R.id.text4);

t4.setText(ss);

t4.setMovementMethod(LinkMovementMethod.getInstance());

例子4：

TextView是用来显示文本的，有时需要给TextView中的个别字设置为超链接，或者设置个别字的颜色、字体等，那就需要用到Spannable对象，可以借助Spannable对象实现以上设置。

效果图：

Activity代码：

publicclassTextViewLinkActivityextendsActivity{ TextViewmyTextView; @OverridepublicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState); setContentView(R.layout.main); myTextView=(TextView)this.findViewById(R.id.myTextView); //创建一个SpannableString对象 SpannableStringsp=newSpannableString("这句话中有百度超链接,有高亮显示，这样，或者这样，还有斜体."); //设置超链接 sp.setSpan(newURLSpan(""),5,7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); //设置高亮样式一 sp.setSpan(newBackgroundColorSpan(Color.RED),17,19,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); //设置高亮样式二sp.setSpan(newForegroundColorSpan(Color.YELLOW),20,24,Spannable.SPAN_EXCLUSIVE_INCLUSIVE); //设置斜体 sp.setSpan(newStyleSpan(android.graphics.Typeface.BOLD_ITALIC),27,29,Spannable.SPAN_EXCLUSIVE_INCLUSIVE); //SpannableString对象设置给TextView myTextView.setText(sp); //设置TextView可点击 myTextView.setMovementMethod(LinkMovementMethod.getInstance()); } }

文章转自：/simayilong80/blog/item/9ba5ebd958e53b3111df9bad.html