TextView和EditText中添加图片（ImageSpan）

2024-08-30 15:17:27

编辑框中加图片,以前一直以为很复杂,后来发现android有些类已经很好的实现了这些功能.

代码如下:

[java] view
plain copy

mSubjectDetailView = (TextView) findViewById(R.id.subject_detail);
CharSequence text = "如图所示★，dsfdsfdddd，如果fdsfs★东东";
SpannableStringBuilder builder = new SpannableStringBuilder(text);
String rexgString = "★";
Pattern pattern = Pattern.compile(rexgString);
Matcher matcher = pattern.matcher(text);
while (matcher.find()) {
builder.setSpan(
new ImageSpan(this, R.drawable.ic_launcher), matcher.start(), matcher
.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
mSubjectDetailView.setText(builder);

布局:

[html] view
plain copy

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TextView
android:id="@+id/my_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world" />
<TextView
android:id="@+id/subject_detail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="50dp"
android:gravity="center_vertical"
android:text="subject"
android:textColor="@android:color/primary_text_light_nodisable"
android:background="@android:color/white"
android:textSize="25sp" />
</RelativeLayout>

效果:

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