Android 密码
切换EditText的密码为显示和隐藏的时候, 会有全角半角切换的问题。
原因是EditText是密码格式的时候, 默认是全角MONOSPACE
的。
所以需要我们手动修改为SANS_SERIF
。`
代码
MainActivity.Java
import android.graphics.Typeface;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.Editable;
import android.text.InputType;
import android.text.Selection;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class MainActivity extends AppCompatActivity {
EditText editText;
Button submitButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText = (EditText) findViewById(R.id.editText);
submitButton = (Button) findViewById(R.id.submitButton);
editText.setTypeface(Typeface.SANS_SERIF);
submitButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
lookPwd(flag, editText);
flag = !flag;
}
});
}
boolean flag;
public void lookPwd(boolean hidePwd, EditText et) {
if (hidePwd) {
// 文本以密码形式显示
et.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
et.setTypeface(Typeface.SANS_SERIF);
setSelection(et);
} else {
// 文本正常显示
et.setInputType(InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
et.setTypeface(Typeface.SANS_SERIF);
setSelection(et);
}
}
/*
* 输入框光标一直在输入文本后面
* @param et EditText
*/
private void setSelection(EditText et) {
Editable text = et.getText();
Selection.setSelection(text, text.length());
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
tools:context="com.qefee.pj.testtypeface.MainActivity">
<EditText
android:id="@+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="12345abc,-"
android:inputType="textPassword"
android:typeface="sans"/>
<Button
android:id="@+id/submitButton"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="显示/隐藏 密码"/>
</LinearLayout>