Android Application Development edittext text content change Monitoring method

2. Import android.app.Activity;
4. Import Android.os.Bundle;
6. Import android.text.Editable;
8. Import Android.text.TextWatcher;
10. Import Android.widget.EditText;
14. Public class Actmain extends Activity {
18. Private EditText Et_search;
22. @Override
24. Public void OnCreate (Bundle savedinstancestate) {
26. Super.oncreate (savedinstancestate);
28. Setcontentview (R.layout.main);
32. Et_search = (EditText) Findviewbyid (R.id.et_search);
36. Et_search.addtextchangedlistener (Textwatcher);
38. }
42. Private Textwatcher Textwatcher = new Textwatcher () {
46. @Override
48. Public void OnTextChanged (charsequence s, int start, int before,
50. int count) {
52. //
54. System.out.println (" -1-ontextchanged-->"
56. + Et_search.gettext (). toString () + "<--");
58. }
62. @Override
64. Public void Beforetextchanged (charsequence s, int start, int count,
66. int after) {
68. //
70. System.out.println (" -2-beforetextchanged-->"
72. + Et_search.gettext (). toString () + "<--");
76. }
80. @Override
82. Public void aftertextchanged (Editable s) {
84. //
86. System.out.println (" -3-aftertextchanged-->"
88. + Et_search.gettext (). toString () + "<--");
92. }
94. };
96. }

Android Application Development edittext text content change Monitoring method