Customize the background to draw Android EditText, define the display style for edittext text

EditText can draw the background by layer-list:

<?xml version= "1.0" encoding= "Utf-8"? ><layer-list xmlns:android= "http://schemas.android.com/apk/res/ Android "><item>    <shape android:shape=" Rectangle "//box for rectangle        >        <solid android:color=" # FFFFFF "/>  //White to fill inside        <stroke//Border is 1DP line            android:width=" 1DP "            android:color=" #AEAEAE "            / >        <corners android:radius= "10DP"/>  //rounded corners of the bezel    </shape></item></layer-list >

Write layout:

<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 "Android:paddi ngbottom= "@dimen/activity_vertical_margin" android:paddingleft= "@dimen/activity_horizontal_margin" Android: paddingright= "@dimen/activity_horizontal_margin" android:paddingtop= "@dimen/activity_vertical_margin" Android: background= "#FFFFFF" > <include layout= "@layout/title_list"/> <view android:l ayout_below= "@id/title" android:id= "@+id/line" android:layout_width= "Fill_parent" Android:layout_heig ht= "2dip" android:background= "@drawable/rc_list_divider"/> <relativelayout android:layout_wid Th= "Fill_parent" android:layout_height= "150DP" android:layout_marginleft= "20DP" Android:layout_margin right= "20DP" android:layout_centerinparent= "true" >        <edittext android:id= "@+id/custom_edittext" android:layout_width= "Fill_parent" android:layout_height= "150DP"//is consistent with parent height so left_word_num can android:background= "@drawable/reply_ in the Background box.            Custom_message_edit_background "android:gravity=" left|top "android:hint=" please inputsomething "            Android:paddingbottom= "24DP" android:paddingleft= "12DP" android:paddingright= "12DP" android:paddingtop= "17DP" android:textcolor= "#000000" android:textcolorhint= "#AEAEAE" a Ndroid:textsize= "20sp"/> <textview android:id= "@+id/other_char_hint" Android:layout_wi Dth= "Wrap_content" android:layout_height= "wrap_content" android:layout_alignbottom= "@id/custom_editt Ext "android:layout_alignparentbottom=" true "android:paddingbottom=" 10DP "android:padding Left= "12DP" android:text= "0" android:textcolor= "#AEAEAE" android:textsize= "14sp" android:visibility= "G One "></TextView> <textview android:id=" @+id/left_word_num "android:layout_width="            Wrap_content "android:layout_height=" Wrap_content "android:layout_alignparentbottom=" true "            Android:layout_alignparentright= "true" android:paddingbottom= "10DP" android:paddingright= "10DP"     android:text= "android:textcolor=" #000000 "android:textsize=" 14SP "></TextView> </RelativeLayout> </RelativeLayout>

The code implements some edittext changes when processing logic (the current logic is not to let input Chinese characters:

Private EditText mcustom_edittext;private TextView left_word_num;private static final int max_input_num = 200;private Tex TView other_char_hint; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate ( Savedinstancestate); requestwindowfeature (Window.feature_no_title); Setcontentview (R.layout.edittext); mCustom_ EditText = (edittext) Findviewbyid (r.id.custom_edittext); other_char_hint = (TextView) Findviewbyid (r.id.other_char_ hint); Other_char_hint.settext ("Only enlish accepted"); Left_word_num = (TextView) Findviewbyid (r.id.left_word_num); Mcustom_edittext.addtextchangedlistener (New Textwatcher () {private charsequence temp;private int selectionstart; private int selectionend; @Overridepublic void ontextchanged (charsequence s, int start, int before, int count) {} @Overridep ublic void Beforetextchanged (charsequence s, int start, int count, int after) {temp = s;} @Overridepublic void aftertextchanged (Editable s) {SelectionStart = Mcustom_edittext.getselectionstart (); Selectionend = MCuStom_edittext.getselectionend ();  String Lastword = s.tostring (). Trim (); if (Lastword.length () > 0) {lastword = Lastword.substring (Lastword.length ()-1, Lastword.length ()), if (!iscontentvalid (temp.tostring ())) {other_char_hint.setvisibility (view.visible); for (int i=0 ; i < temp.tostring (). Length (); i++) {String Temp1 = temp.tostring (). substring (i, i+1); if (!isinputvalid (TEMP1)) {// Use Setspan to draw a black line under the EditText word s.setspan (new Underlinespan (), I, i+1, spanned.span_exclusive_exclusive);}}} Else{other_char_hint.setvisibility (View.gone);}} Else{other_char_hint.setvisibility (View.gone);} Left_word_num.settext (String.valueof (Max_input_num-temp.length ()));});} Private Boolean Iscontentvalid (string content) {for (int i=0;i < content.length (); i++) {String value = Content.substrin g (i,i+1); if (!isinputvalid (value)) {return false;}} return true;} Private Boolean isinputvalid (String s) {byte[] Ch_array = S.getbytes (); if (ch_array.length = = 1) {return true;} else {Retu rn false;}}

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