EditText 字面意思可以编辑的文本。在Android中就是用来接收用户输入的输入框。
1.基本用法
<EditText
android:id="@+id/id_phone_edit"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="@android:color/transparent"
android:hint="请输入手机号"
android:inputType="phone"
android:lines="1"
android:maxLength="11"
android:textColor="#FF151F24"
android:textColorHint="#FFCECECE"
android:textCursorDrawable="@drawable/edittext_cursor_bg"
android:textSize="16sp" />清除系统默认的EditText背景，添加一个透明背景：
android:background="@android:color/transparent"
未输入时的提示文字和颜色：
android:hint="请输入手机号"
android:textColorHint="#FFCECECE"
输入文字的颜色：
android:textColor="#FF151F24"
修改输入光标的颜色和大小：
android:textCursorDrawable="@drawable/edittext_cursor_bg"
通过drawable目录下定义shape的形式，创建一个drawable
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#FFAC36"></solid>
<size
android:width="1.8dp"
android:height="17dp" />
<corners android:radius="0.9dp" />
</shape>类型：android:inputType="phone"
phone：呼出的软键盘会自动切换成数字键盘，并且限制输入最大长度11个。
textPassword：文本密码，输入的内容会呈现密码输入的形式。
numberPassword：数字密码，只接受数字类型。
2.代码获取输入的文字：
editText = findViewById(R.id.id_phone_edit);
String phoneNum = editText.getText().toString().trim();3.监听EditText文本输入：10086
editText.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after){
Log.e("nyz","before "+s);
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
Log.e("nyz","change "+s);
}
@Override
public void afterTextChanged(Editable s) {
Log.e("nyz","after "+s);
}
});打印日志：
通过日志可以看出：每一次输入都会调用三个回调函数。
2023-10-12 15:04:24.166 23878-23878/com.example.testview E/nyz: before
2023-10-12 15:04:24.169 23878-23878/com.example.testview E/nyz: change 1
2023-10-12 15:04:24.169 23878-23878/com.example.testview E/nyz: after 1
2023-10-12 15:04:24.555 23878-23878/com.example.testview E/nyz: before 1
2023-10-12 15:04:24.556 23878-23878/com.example.testview E/nyz: change 10
2023-10-12 15:04:24.556 23878-23878/com.example.testview E/nyz: after 10
2023-10-12 15:04:24.745 23878-23878/com.example.testview E/nyz: before 10
2023-10-12 15:04:24.747 23878-23878/com.example.testview E/nyz: change 100
2023-10-12 15:04:24.748 23878-23878/com.example.testview E/nyz: after 100
2023-10-12 15:04:24.956 23878-23878/com.example.testview E/nyz: before 100
2023-10-12 15:04:24.957 23878-23878/com.example.testview E/nyz: change 1008
2023-10-12 15:04:24.957 23878-23878/com.example.testview E/nyz: after 1008
2023-10-12 15:04:25.374 23878-23878/com.example.testview E/nyz: before 1008
2023-10-12 15:04:25.375 23878-23878/com.example.testview E/nyz: change 10086
2023-10-12 15:04:25.376 23878-23878/com.example.testview E/nyz: after 100864.监听软件盘中的回车键：
1）设置回车键的样式 android:imeOptions=“”，
actionGo：回车键变为“开始”
actionSearch：回车键变为“搜索”
actionDone：默认样式
2）代码中监听回车键：
InputMethodManager manager = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
Log.e("nyz", "actionId "+actionId);
if (actionId == EditorInfo.IME_ACTION_UNSPECIFIED) {
//隐藏软键盘
if (manager.isActive()) {
manager.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
return true;
}
return false;
}
});通过actionId 可以监听按键的类型：
最常用的还是ActionDone
/**
* Bits of {@link #IME_MASK_ACTION}: no specific action has been
* associated with this editor, let the editor come up with its own if
* it can.
*/
public static final int IME_ACTION_UNSPECIFIED = 0x00000000;
/**
* Bits of {@link #IME_MASK_ACTION}: there is no available action.
*/
public static final int IME_ACTION_NONE = 0x00000001;
/**
* Bits of {@link #IME_MASK_ACTION}: the action key performs a "go"
* operation to take the user to the target of the text they typed.
* Typically used, for example, when entering a URL.
*/
public static final int IME_ACTION_GO = 0x00000002;
/**
* Bits of {@link #IME_MASK_ACTION}: the action key performs a "search"
* operation, taking the user to the results of searching for the text
* they have typed (in whatever context is appropriate).
*/
public static final int IME_ACTION_SEARCH = 0x00000003;
/**
* Bits of {@link #IME_MASK_ACTION}: the action key performs a "send"
* operation, delivering the text to its target. This is typically used
* when composing a message in IM or SMS where sending is immediate.
*/
public static final int IME_ACTION_SEND = 0x00000004;
/**
* Bits of {@link #IME_MASK_ACTION}: the action key performs a "next"
* operation, taking the user to the next field that will accept text.
*/
public static final int IME_ACTION_NEXT = 0x00000005;
/**
* Bits of {@link #IME_MASK_ACTION}: the action key performs a "done"
* operation, typically meaning there is nothing more to input and the
* IME will be closed.
*/
public static final int IME_ACTION_DONE = 0x00000006;5.EditText 设置其他类型的事件监听：
editText.setOnTouchListener((v, event) -> {
//todo
return false;
});
editText.setOnLongClickListener(v -> {
//todo
return false;
});
editText.setOnClickListener(v -> {
});
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