效果如图
1 首先这是一个自定义的Dialog，而不是AlertDialog，如果是AlertDialog的话，软键盘弹出的时候在AlertDialog的后面，无法进行输入。
2 Dialog的上面会有一个黑框，添加Style
<style name="dialog" parent="@android:style/Theme.Dialog">
<item name="android:windowFrame">@null</item>
<!-- 边框 -->
<item name="android:windowIsFloating">true</item>
<!-- 是否浮现在activity之上 -->
<item name="android:windowIsTranslucent">true</item>
<!-- 半透明 -->
<item name="android:windowNoTitle">true</item>
<!-- 无标题 -->
<item name="android:windowBackground">@color/transparent</item>
<!-- 背景透明 -->
<item name="android:backgroundDimEnabled">true</item>
<!-- 模糊 -->
</style>
3 输入密码用的是EditText，改变EditText的格式是
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/white" />
<corners android:radius="3dip"/>
<stroke
android:width="1dip"
android:color="@color/viewfinder_mask" />
</shape>
4 给EditText添加监听函数，本来想把EditText放入到List来管理，结果总是报错指针错误，只能作罢- -，所以看起来有很多重复的代码啊，要监听EditText的内容改变，限制输入的内容，默认弹出数字键盘，监听键盘的删除键，以下是实现代码
void initDialog() {
current=0;
myDialog = new Dialog(ChargeActivity.this, R.style.add_dialog);
myDialog.show();
myDialog.getWindow().setContentView(R.layout.return_code_dialog);
psw1 = (EditText) myDialog.getWindow().findViewById(R.id.psw_1);
psw2 = (EditText) myDialog.getWindow().findViewById(R.id.psw_2);
psw3 = (EditText) myDialog.getWindow().findViewById(R.id.psw_3);
psw4 = (EditText) myDialog.getWindow().findViewById(R.id.psw_4);
psw5 = (EditText) myDialog.getWindow().findViewById(R.id.psw_5);
psw6 = (EditText) myDialog.getWindow().findViewById(R.id.psw_6);
//锁定数字键盘
psw1.setInputType(EditorInfo.TYPE_CLASS_NUMBER);
psw2.setInputType(EditorInfo.TYPE_CLASS_NUMBER);
psw3.setInputType(EditorInfo.TYPE_CLASS_NUMBER);
psw4.setInputType(EditorInfo.TYPE_CLASS_NUMBER);
psw5.setInputType(EditorInfo.TYPE_CLASS_NUMBER);
psw6.setInputType(EditorInfo.TYPE_CLASS_NUMBER);
psw1.addTextChangedListener(this);
psw2.addTextChangedListener(this);
psw3.addTextChangedListener(this);
psw4.addTextChangedListener(this);
psw5.addTextChangedListener(this);
psw6.addTextChangedListener(this);
psw1.setOnKeyListener(this);
psw2.setOnKeyListener(this);
psw3.setOnKeyListener(this);
psw4.setOnKeyListener(this);
psw5.setOnKeyListener(this);
psw6.setOnKeyListener(this);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int length =0;
//Log.d("test","current="+current+"我变了");
switch(current){
case 0:length=psw1.getText().length();changeFocus(length,psw2);passwordInput[0]=psw1.getText().toString();break;
case 1:length=psw2.getText().length();changeFocus(length,psw3);passwordInput[1]=psw2.getText().toString();break;
case 2:length=psw3.getText().length();changeFocus(length,psw4);passwordInput[2]=psw3.getText().toString();break;
case 3:length=psw4.getText().length();changeFocus(length,psw5);passwordInput[3]=psw4.getText().toString();break;
case 4:length=psw5.getText().length();changeFocus(length,psw6);passwordInput[4]=psw5.getText().toString();break;
case 5:length=psw6.getText().length();if(length>=1){passwordInput[5]=psw6.getText().toString();Log.d("input",passwordInput[5]);validatePassword();myDialog.cancel();}
}
}
@Override
public void afterTextChanged(Editable s) {
}
void changeFocus(int l,EditText editText){
if(l >= maxLen){
current++;
//Log.d("test", "current=" + current+" 请求焦点");
editText.setFocusable(true);
editText.setFocusableInTouchMode(true);
editText.requestFocus();
editText.findFocus();
/**if(editText.isFocusable()){
Log.d("test",editText.getId()+"获得焦点");
}*/
}
}
void validatePassword(){
current=0;
boolean isInSchool =true;
StringBuffer stringBuffer=new StringBuffer();
for(int i=0;i<passwordInput.length;i++){
stringBuffer.append(passwordInput[i]);
}
String psw =stringBuffer.toString();
boolean isPassword =psw.equals(password);
Log.d("psw",passwordInput.toString());
Log.d("psw",password);
if(!isPassword){
final Dialog errorDialog =new AlertDialog.Builder(ChargeActivity.this).create();
errorDialog.show();
errorDialog.getWindow().setContentView(R.layout.error_password_dialog);
errorDialog.getWindow().findViewById(R.id.ok_error).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
errorDialog.cancel();
initDialog();
}
});
}else if(!isInSchool){
final Dialog out =new AlertDialog.Builder(ChargeActivity.this).create();
out.show();
out.getWindow().setContentView(R.layout.out_school_dialog);
out.getWindow().findViewById(R.id.ok_out_school).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
out.cancel();
}
});
}else{
startActivity(new Intent(ChargeActivity.this,PaymentActivity.class));
}
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_DEL
&& event.getAction() == KeyEvent.ACTION_DOWN) {
current--;
switch(current){
case 0:psw1.setText("");requestF(psw1);break;
case 1:psw2.setText("");requestF(psw2);break;
case 2:psw3.setText("");requestF(psw3);break;
case 3:psw4.setText("");requestF(psw4);break;
case 4:psw5.setText("");requestF(psw5);break;
case 5:psw6.setText("");requestF(psw6);break;
}
}
return false;
}
void requestF(EditText editText){
editText.setFocusable(true);
editText.setFocusableInTouchMode(true);
editText.requestFocus();
editText.findFocus();
}
写的过程中犯了一个比较傻的错误，字符串数组没分配内存，结果一直报指针错误，傻呵呵的调了半天= =
还有就是一些逻辑细节的问题，向删除的时候比较容易引起焦点混乱。
时间： 2024-08-28 02:36:03