Android TextView content too long plus ellipsis, click to show All content

In Android TextView, there is an attribute that is too long plus an ellipsis, that is, Ellipsize, as follows:

In XML: android:ellipsize= "End" ellipsis at the  end android:ellipsize= "Start" ellipsis at the beginning android:ellipsize= "Middle" ellipsis in the middle Android : ellipsize= "marquee" is best to add a textview to display the constraints of the number of rows, for example:

Android:singleline= "true" or android:lines= "2"

In the Java file: Tv.setellipsize (TextUtils.TruncateAt.valueOf ("END")); Tv.setellipsize (TextUtils.TruncateAt.valueOf (" START ")); Tv.setellipsize (TextUtils.TruncateAt.valueOf (" Middle ")); Tv.setellipsize (TextUtils.TruncateAt.valueOf ( "MARQUEE"));

It is best to add a textview to display the constraints of the number of rows, for example:

Tv.setsingleline (TRUE);

This property is not only available for TextView, but also for Editext, but it does not support marquee.

Text expansion and contraction

public class Demoactivity extends Baseactivity {

@Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.main);

The android:singleline= "true" final TextView TV = (TextView) Findviewbyid (R.id.task_2_title) is set in the XML file;   Tv.setmovementmethod (Scrollingmovementmethod.getinstance ());    Tv.setonclicklistener (New Onclicklistener () {Boolean flag = true;     @Override public void OnClick (View v) {log.i ("Tv.getlinecount ()", tv.getheight () + "");      if (flag) {flag = false; Tv.setellipsize (NULL);     Expand//tv.setsingleline (flag);      }else{flag = true; Tv.setellipsize (TextUtils.TruncateAt.END);     Contraction//tv.setsingleline (flag);  }    }   }); } }

Actually, just empty the style. can be fully unfolded.

Someone might say, what if I want to start a few lines? Rest assured, as can be. On the code:

The following properties are set in the XML file:

Android:lines= "4"//4 rows I initialized

Activity over there code, just a little bit.

if (flag) {flag = false; Tv.setellipsize (NULL);         Expand Tv.setsingleline (flag);           }else{flag = true; Tv.setellipsize (TextUtils.TruncateAt.END); The purpose of setting Setsingleline is to cancel the fixed value of lines== "4".

Reference: http://blog.csdn.net/wwzqj/article/details/8731859