学步园

    在xml文件中实现EditText不可编辑很简单，只要设置android:editable的值为false即可，可是在代码中却没有setEditable方法；

在代码中设置EditText不可编辑只能使用以下代码：

editText.setFilters(new InputFilter[] { new InputFilter() {<br /> @Override<br /> public CharSequence filter(CharSequence source, int start,<br /> int end, Spanned dest, int dstart, int dend) {<br /> return source.length() < 1 ? dest.subSequence(dstart, dend) : "";<br /> }<br /> }<br /> });

下面是一个例子：

import android.app.Activity;<br /> import android.os.Bundle;<br /> import android.text.InputFilter;<br /> import android.text.Spanned;<br /> import android.view.View;<br /> import android.widget.Button;<br /> import android.widget.EditText; </p> <p>/**<br /> * Class which shows how to lock and unlock EditText component<br /> *<br /> * @author FaYnaSoft Labs<br /> */<br /> public class Main extends Activity {<br /> private EditText editText;<br /> private boolean value = false; </p> <p> @Override<br /> public void onCreate(Bundle savedInstanceState) {<br /> super.onCreate(savedInstanceState);<br /> setContentView(R.layout.main);<br /> editText = (EditText) findViewById(R.id.textId);<br /> editText.setText("EditText component");<br /> Button b = (Button) findViewById(R.id.btnId);<br /> b.setText("Lock/Unlock");<br /> b.setOnClickListener(new View.OnClickListener() {<br /> @Override<br /> public void onClick(View v) {<br /> if (value) {<br /> value = false;<br /> } else {<br /> value = true;<br /> }<br /> lockUnlock(value);<br /> }<br /> });<br /> } </p> <p> /**<br /> * Method which locks and unlocks editText component<br /> * @param value our boolean value which using in or if operator<br /> */<br /> private void lockUnlock(boolean value) {<br /> if (value) {<br /> editText.setFilters(new InputFilter[] { new InputFilter() {<br /> @Override<br /> public CharSequence filter(CharSequence source, int start,<br /> int end, Spanned dest, int dstart, int dend) {<br /> return source.length() < 1 ? dest.subSequence(dstart, dend)<br /> : "";<br /> }<br /> } });<br /> } else {<br /> editText.setFilters(new InputFilter[] { new InputFilter() {<br /> @Override<br /> public CharSequence filter(CharSequence source, int start,<br /> int end, Spanned dest, int dstart, int dend) {<br /> return null;<br /> }<br /> } });<br /> }<br /> }<br /> }