TextView之你不知道的那些事儿

下面就是代码（注释很详细）

public class MainActivity extends AppCompatActivity {    private TextView tv1, tv2, tv3, tv4, tv5, tv6, tv8;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        initView();    }    private void initView() {        setContentView(R.layout.activity_main);        tv1 = (TextView) findViewById(R.id.tv1);        tv1.setText(getString(R.string.xliff_1, "code小生", "Android爱好者"));        tv2 = (TextView) findViewById(R.id.tv2);        tv2.setTypeface(Typeface.createFromAsset(getAssets(), "simkai.ttf"));        tv3 = (TextView) findViewById(R.id.tv3);        setTextSpannable(tv3);        // 定制超链接        tv4 = (TextView) findViewById(R.id.tv4);        tv4.setText(getClickableSpan(tv4));        //设置该句使设置了链接的文本的超连接起作用        tv4.setMovementMethod(LinkMovementMethod.getInstance());        // 设置多种颜色字体        tv5 = (TextView) findViewById(R.id.tv5);        String str1 = "<font color=\"#404f50\">年轻的我们,</font>";        String str2 = "<font color=\"#ff0000\">即将奔赴战场</font>";        tv5.setText(Html.fromHtml(str1 + str2));        // 加载html中的图片        tv6 = (TextView) findViewById(R.id.tv6);        setHtmlBitmap(tv6);        tv8 = (TextView) findViewById(R.id.tv8);        String text = String.format("¥%1$s 门市价：¥%2$s", "88.8", "150");        int index = text.indexOf("门");        SpannableStringBuilder span = new SpannableStringBuilder(text);        span.setSpan(new ForegroundColorSpan(Color.parseColor("#00ff00")), 0, index - 1, Spanned.SPAN_EXCLUSIVE_INCLUSIVE);        span.setSpan(new AbsoluteSizeSpan(28), index, text.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE);        span.setSpan(new ForegroundColorSpan(Color.parseColor("#afafaf")), index, text.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE);        tv8.setText(span);    }    //http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2015/0120/2335.html    /**     *     * 设置TextView中的某个词突出显示     *     * @param textView     */    private void setTextSpannable(TextView textView) {        String text = textView.getText().toString().trim();        int start = text.indexOf('5');        int end = text.length();        Spannable textSpan = new SpannableStringBuilder(text);        textSpan.setSpan(new AbsoluteSizeSpan(30), 0, start, Spannable.SPAN_INCLUSIVE_INCLUSIVE);//        textSpan.setSpan(new AbsoluteSizeSpan(45), start, end - 3, Spannable.SPAN_INCLUSIVE_INCLUSIVE);        // 设置文字颜色        textSpan.setSpan(new ForegroundColorSpan(Color.BLUE), start, end - 3, Spannable.SPAN_INCLUSIVE_INCLUSIVE);        textSpan.setSpan(new AbsoluteSizeSpan(30), end - 3, end, Spannable.SPAN_INCLUSIVE_INCLUSIVE);        textView.setText(textSpan);    }    //给指定文本设置超链接    private SpannableString getClickableSpan(TextView textView) {        String text = textView.getText().toString().trim();        final SpannableString spanStr = new SpannableString(text);        spanStr.setSpan(new UnderlineSpan(), 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        //设置文字的单击事件        spanStr.setSpan(new ClickableSpan() {            @Override            public void onClick(View widget) {                Toast.makeText(MainActivity.this, "服务条款", Toast.LENGTH_SHORT).show();            }        }, 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        spanStr.setSpan(new ForegroundColorSpan(Color.BLUE), 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        // 取消点击时的默认背景色        spanStr.setSpan(new BackgroundColorSpan(Color.WHITE), 16, 20, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        spanStr.setSpan(new UnderlineSpan(), 21, 25, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        //设置文字的单击事件        spanStr.setSpan(new ClickableSpan() {            @Override            public void onClick(View widget) {                Toast.makeText(MainActivity.this, "隐私政策", Toast.LENGTH_SHORT).show();            }        }, 21, 25, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        spanStr.setSpan(new ForegroundColorSpan(Color.GREEN), 21, 25, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        spanStr.setSpan(new BackgroundColorSpan(Color.WHITE), 21, 25, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);        return spanStr;    }    /**     * TextView加载html/xml中的图片和文字     *     * @param textView     */    private void setHtmlBitmap(TextView textView) {        String imgStr = "<b>this is html text</b><br><img src=\"" + R.mipmap.ic_launcher + "\"/>";        Html.ImageGetter imageGetter = new Html.ImageGetter() {            @Override            public Drawable getDrawable(String source) {                int id = Integer.parseInt(source);                Drawable draw = getResources().getDrawable(id);                draw.setBounds(0, 0, 200, 200);                return draw;            }        };        textView.append(Html.fromHtml(imgStr, imageGetter, null));    }}
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