Android仿滴滴出行驗證碼輸入框效果
阿新 • • 發佈：2019-01-10
1、前言
最近擼碼忙成狗啊，果然從無到有的獨立開發不是一般的累啊。。。。
最近公司專案中有一個類似滴滴出行填寫驗證碼的彈框，下面是我擼出來的效果：
中間的那個輸入密碼的6個框框其實就是用shape畫的背景，通過監聽EditText獲取焦點來改變背景，廢話少說，直接上程式碼吧。
2、效果實現
程式碼內容比較簡單，所以大家可以直接看程式碼
VerificationCodeInput.java
/** * @author hydCoder * @date 2017/9/22 14:39 * @desc 輸入驗證碼的自定義view * @email [email protected]*/ public class VerificationCodeInput extends LinearLayout implements TextWatcher, View.OnKeyListener{ private final static String TYPE_NUMBER = "number"; private final static String TYPE_TEXT = "text"; private final static String TYPE_PASSWORD = "password"; private final static String TYPE_PHONE = "phone"; private static final String TAG = "VerificationCodeInput"; private int box = 4; private int boxWidth = 80; private int boxHeight = 80; private int childHPadding = 14; private int childVPadding = 14; private String inputType = TYPE_NUMBER; private Drawable boxBgFocus = null; private Drawable boxBgNormal = null; private Listener listener; private boolean focus = false; private List<EditText> mEditTextList = new ArrayList<>(); private int currentPosition = 0; public VerificationCodeInput(Context context, AttributeSet attrs) { super(context, attrs); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.vericationCodeInput); box = a.getInt(R.styleable.vericationCodeInput_box, 4); childHPadding = (int) a.getDimension(R.styleable.vericationCodeInput_child_h_padding, 0); childVPadding = (int) a.getDimension(R.styleable.vericationCodeInput_child_v_padding, 0); boxBgFocus = a.getDrawable(R.styleable.vericationCodeInput_box_bg_focus); boxBgNormal = a.getDrawable(R.styleable.vericationCodeInput_box_bg_normal); inputType = a.getString(R.styleable.vericationCodeInput_inputType); boxWidth = (int) a.getDimension(R.styleable.vericationCodeInput_child_width, boxWidth); boxHeight = (int) a.getDimension(R.styleable.vericationCodeInput_child_height, boxHeight); initViews(); } @Override protected void onAttachedToWindow() { super.onAttachedToWindow(); } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); } private void initViews() { for (int i = 0; i < box; i++) { EditText editText = new EditText(getContext()); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(boxWidth, boxHeight); layoutParams.bottomMargin = childVPadding; layoutParams.topMargin = childVPadding; layoutParams.leftMargin = childHPadding; layoutParams.rightMargin = childHPadding; layoutParams.gravity = Gravity.CENTER; editText.setOnKeyListener(this); if(i == 0) setBg(editText, true); else setBg(editText, false); editText.setTextColor(Color.BLACK); editText.setLayoutParams(layoutParams); editText.setGravity(Gravity.CENTER); editText.setInputType(EditorInfo.TYPE_CLASS_PHONE); editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(1)}); if (TYPE_NUMBER.equals(inputType)) { editText.setInputType(InputType.TYPE_CLASS_NUMBER); } else if (TYPE_PASSWORD.equals(inputType)){ editText.setTransformationMethod(PasswordTransformationMethod.getInstance()); } else if (TYPE_TEXT.equals(inputType)){ editText.setInputType(InputType.TYPE_CLASS_TEXT); } else if (TYPE_PHONE.equals(inputType)){ editText.setInputType(InputType.TYPE_CLASS_PHONE); } editText.setId(i); editText.setEms(1); editText.addTextChangedListener(this); addView(editText,i); mEditTextList.add(editText); } } private void backFocus() { int count = getChildCount(); EditText editText ; for (int i = count-1; i>= 0; i--) { editText = (EditText) getChildAt(i); if (editText.getText().length() == 1) { editText.requestFocus(); setBg(mEditTextList.get(i),true); //setBg(mEditTextList.get(i-1),true); editText.setSelection(1); return; } } } private void focus() { int count = getChildCount(); EditText editText ; for (int i = 0; i< count; i++) { editText = (EditText) getChildAt(i); if (editText.getText().length() < 1) { editText.requestFocus(); return; } } } private void setBg(EditText editText, boolean focus) { if (boxBgNormal != null && !focus) { editText.setBackground(boxBgNormal); } else if (boxBgFocus != null && focus) { editText.setBackground(boxBgFocus); } } private void setBg(){ int count = getChildCount(); EditText editText ; for(int i = 0; i< count; i++){ editText = (EditText) getChildAt(i); if (boxBgNormal != null && !focus) { editText.setBackground(boxBgNormal); } else if (boxBgFocus != null && focus) { editText.setBackground(boxBgFocus); } } } private void checkAndCommit() { StringBuilder stringBuilder = new StringBuilder(); boolean full = true; for (int i = 0 ;i < box; i++){ EditText editText = (EditText) getChildAt(i); String content = editText.getText().toString(); if ( content.length() == 0) { full = false; break; } else { stringBuilder.append(content); } } if (full){ if (listener != null) { listener.onComplete(stringBuilder.toString()); setEnabled(false); } } } @Override public void setEnabled(boolean enabled) { int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View child = getChildAt(i); child.setEnabled(enabled); } } public void setOnCompleteListener(Listener listener){ this.listener = listener; } @Override public LayoutParams generateLayoutParams(AttributeSet attrs) { return new LinearLayout.LayoutParams(getContext(), attrs); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); int count = getChildCount(); for (int i = 0; i < count; i++) { View child = getChildAt(i); this.measureChild(child, widthMeasureSpec, heightMeasureSpec); } if (count > 0) { View child = getChildAt(0); int cHeight = child.getMeasuredHeight(); int cWidth = child.getMeasuredWidth(); int maxH = cHeight + 2 * childVPadding; int maxW = (cWidth + childHPadding) * box + childHPadding; setMeasuredDimension(resolveSize(maxW, widthMeasureSpec), resolveSize(maxH, heightMeasureSpec)); } } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { View child = getChildAt(i); child.setVisibility(View.VISIBLE); int cWidth = child.getMeasuredWidth(); int cHeight = child.getMeasuredHeight(); int cl = (i) * (cWidth + childHPadding); int cr = cl + cWidth; int ct = childVPadding; int cb = ct + cHeight; child.layout(cl, ct, cr, cb); } } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { if (start == 0 && count >= 1 && currentPosition != mEditTextList.size() - 1) { currentPosition++; mEditTextList.get(currentPosition).requestFocus(); setBg(mEditTextList.get(currentPosition),true); setBg(mEditTextList.get(currentPosition-1),false); } } @Override public void afterTextChanged(Editable s) { if (s.length() == 0) { } else { focus(); checkAndCommit(); } } @Override public boolean onKey(View view, int keyCode, KeyEvent event) { EditText editText = (EditText) view; if (keyCode == KeyEvent.KEYCODE_DEL && editText.getText().length() == 0) { int action = event.getAction(); if (currentPosition != 0 && action == KeyEvent.ACTION_DOWN) { currentPosition--; mEditTextList.get(currentPosition).requestFocus(); setBg(mEditTextList.get(currentPosition),true); setBg(mEditTextList.get(currentPosition+1),false); mEditTextList.get(currentPosition).setText(""); } } return false; } public interface Listener { void onComplete(String content); }
}
styles.xml裡新增自定義屬性
<declare-styleable name="vericationCodeInput"> <attr name="box" format="integer" /> <attr name="child_h_padding" format="dimension"/> <attr name="child_v_padding" format="dimension"/> <attr name="child_width" format="dimension"/> <attr name="child_height" format="dimension"/> <attr name="padding" format="dimension"/> <attr name="box_bg_focus" format="reference"/> <attr name="box_bg_normal" format="reference"/> <attr name="inputType" format="string"/> </declare-styleable>
輸入框獲取焦點時的背景
verification_edit_bg_focus.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#FFFFFF" />
<corners android:radius="8dip" />
<stroke
android:width="2dip"
android:color="@color/auxiliary_color" />
</shape>
輸入框沒有獲取焦點時的背景
verification_edit_bg_normal.xml
<?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="8dip" />
<stroke
android:width="1dip"
android:color="@color/divide_color"/>
</shape>
在介面中使用
<com.sdalolo.genius.ui.view.VerificationCodeInput
android:digits="1234567890"
android:id="@+id/verificationCodeInput"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:layout_gravity="center_horizontal"
ver:box="6"
ver:box_bg_normal="@drawable/verification_edit_bg_normal"
ver:box_bg_focus="@drawable/verification_edit_bg_focus"
ver:child_h_padding="5dp"
android:layout_centerInParent="true"
android:layout_marginBottom="16dp"/>
然後對它設定輸入完成後的監聽
verificationCodeInput.setOnCompleteListener(new VerificationCodeInput.Listener() {
@Override
public void onComplete(String content) {
btn_confirm.setEnabled(true);
btn_confirm.setBackgroundResource(R.drawable.btn_bg_shape_enable);
btn_confirm.setTextColor(Color.parseColor("#e4c16a"));
codeNum = content;
}
});
到這裡就可以完成和滴滴出行類似的效果了，是不是很簡單，如果你剛好有需要，直接拷過去用吧！
