Android自定義短信驗證碼組件
Android自定義短信驗證碼組件，供大傢參考，具體內容如下
效果圖
1.佈局實現
因為要禁用光標，所以我用TextView代替瞭EditText，每一行顯示的驗證碼個數由用戶決定，所以我這裡用線性佈局的權重，對TextView進行控制寬度等分，然後設置選中和未選中當前TextView的底部邊框，設置高亮顏色背景
2.接受用戶輸入
我這裡使用瞭TextView，但是怎麼接受用戶輸入的值呢。這裡我直接繼承瞭RelativeLayout，然後添加瞭一個透明的EditText，覆蓋在這幾個TextView上面，用戶就可以點擊喚起鍵盤輸入
3.TextView如何顯示值和刪除值
我這裡設置EditText的TextColor和BackgroundColor為Color.TRANSPARENT 透明，然後監聽EditText的addTextChangedListener事件和setOnKeyListener按鍵刪除事件，然後把值添加到TextView上，就能實現瞭，然後在寫一個對外的接口。獲取到輸入的驗證碼。
4.添加閃爍的動畫
我這裡使用瞭ObjectAnimator，初始化給每個TextView添加動畫，然後在輸入的時候給當前的TextView啟動動畫，取消其他TextView動畫
具體源碼如下:
/**
* @author wu_ming_zhi_bei
* @date 2021/1/27 15:00
* @Notes
*/
public class VerificationCodeView extends RelativeLayout {
private Context mContext;
private RelativeLayout.LayoutParams layoutParams;
private int num = 4;//驗證碼數量
private int codeSize;//字體大小
private int codeColor;//字體顏色
private List<TextView> tvs = new ArrayList<>();
private List<String> codes = new ArrayList<>();
private EditText etCode;
private InputMethodManager imm;
List<ObjectAnimator> animators = new ArrayList<>();
public VerificationCodeView(Context context) {
this(context,null);
}
public VerificationCodeView(Context context, AttributeSet attrs) {
this(context,attrs,0);
}
public VerificationCodeView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context,attrs);
}
private void init(Context context, AttributeSet attrs) {
this.mContext = context;
imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
TypedArray a = mContext.obtainStyledAttributes(attrs, R.styleable.VerificationCodeView);
num = a.getInteger(R.styleable.VerificationCodeView_num,4);
codeSize = a.getDimensionPixelSize(R.styleable.VerificationCodeView_codeSize,18);
codeColor = a.getColor(R.styleable.VerificationCodeView_codeColor,getResources().getColor(R.color.theme_color));
//初始化一個大的LinearLayout來存放驗證碼
LinearLayout codeBox = new LinearLayout(mContext);
codeBox.setOrientation(LinearLayout.HORIZONTAL);
codeBox.setGravity(Gravity.CENTER);
//添加方塊
for(int i=0;i<num;i++){
TextView tv = new TextView(mContext);
tv.setTextSize(codeSize);
tv.setTextColor(codeColor);
tv.setGravity(Gravity.CENTER);
tv.setPadding(0,0,0,10);
LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT, 1);
param.gravity = Gravity.CENTER;
param.rightMargin = 20;
param.leftMargin = 20;
param.topMargin = 20;
param.bottomMargin = 20;
tv.setLayoutParams(param);
//默認第一個選中
if(i==0){
tv.setText("|");
tv.setBackground(mContext.getResources().getDrawable(R.drawable.code_border_current_bottom));
}else{
tv.setBackground(mContext.getResources().getDrawable(R.drawable.code_border_bottom));
}
codeBox.addView(tv);
tvs.add(tv);//添加到數組
}
layoutParams = new RelativeLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
//添加codebox的位置在組件的最上面
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP,TRUE);
layoutParams.setMargins(60,0,60,0);
codeBox.setLayoutParams(layoutParams);
//添加Edit
etCode = new EditText(mContext);
etCode.setLayoutParams(layoutParams);
etCode.setLines(1);
etCode.setMaxLines(1);
etCode.setTextColor(Color.TRANSPARENT);
etCode.setBackgroundColor(Color.TRANSPARENT);
etCode.setCursorVisible(false);
//添加edit監聽
etCode.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void afterTextChanged(Editable editable) {
if(editable != null && editable.length()>0) {
etCode.setText("");//清空數據
if(codes.size() < num){
codes.add(editable.toString());
showCode();
}
}
}
});
// 監聽驗證碼刪除按鍵
etCode.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View view, int keyCode, KeyEvent keyEvent) {
if (keyCode == KeyEvent.KEYCODE_DEL && keyEvent.getAction() == KeyEvent.ACTION_DOWN && codes.size()>0) {
codes.remove(codes.size()-1);
showCode();
return true;
}
return false;
}
});
addView(codeBox);
addView(etCode);
addAnimation();//添加東安湖
setTwinkle();//開啟動畫
}
//顯示驗證碼
private void showCode(){
int size = codes.size();//1 6
for(int i=0;i<num;i++){
if(size>i){
tvs.get(i).setText(codes.get(i));//添加到textview
}else if(size==i){
tvs.get(i).setText("|");
}else{
tvs.get(i).setText("");
}
}
etCode.setFocusable(true);
etCode.requestFocus();
etCode.setFocusableInTouchMode(true);
etCode.requestFocusFromTouch();
setTwinkle();//動畫
callBack();//回調
}
private void showColor(){
int size = codes.size();
if(size==0){
tvs.get(0).setBackground(mContext.getResources().getDrawable(R.drawable.code_border_current_bottom));
}else{
for(int i=0;i<tvs.size();i++){
if(i==size-1){
tvs.get(i).setBackground(mContext.getResources().getDrawable(R.drawable.code_border_current_bottom));
}else{
tvs.get(i).setBackground(mContext.getResources().getDrawable(R.drawable.code_border_bottom));
}
}
}
}
/**
* 回調
*/
private void callBack(){
if(onInputListener==null){
return;
}
if(codes.size()==num){
onInputListener.onSucess(getPhoneCode());
}else{
onInputListener.onInput();
}
}
//定義回調
public interface OnInputListener{
void onSucess(String code);
void onInput();
}
private OnInputListener onInputListener;
public void setOnInputListener(OnInputListener onInputListener){
this.onInputListener = onInputListener;
}
/**
* 獲得手機號驗證碼
* @return 驗證碼
*/
public String getPhoneCode(){
StringBuilder sb = new StringBuilder();
for (String code : codes) {
sb.append(code);
}
return sb.toString();
}
/**
* 顯示鍵盤
*/
public void showSoftInput(){
//顯示軟鍵盤
if(imm!=null && etCode!=null) {
etCode.postDelayed(new Runnable() {
@Override
public void run() {
imm.showSoftInput(etCode, 0);
}
},200);
}
}
/**
* 隱藏鍵盤
*/
public void hideSoftInput(){
//顯示軟鍵盤
if(imm!=null && etCode!=null) {
etCode.postDelayed(new Runnable() {
@Override
public void run() {
imm.hideSoftInputFromWindow(etCode.getWindowToken(), 0);
}
},200);
}
}
/**
* 添加動畫
*/
private void addAnimation(){
for(int i=0;i<tvs.size();i++){
ObjectAnimator animator = ObjectAnimator.ofInt(tvs.get(i), "TextColor", 0x00000000, 0xfff00000);
animator.setDuration(10000);
final int index = i;
animator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animator) {
}
@Override
public void onAnimationEnd(Animator animator) {
}
@Override
public void onAnimationCancel(Animator animator) {
tvs.get(index).setTextColor(codeColor);
}
@Override
public void onAnimationRepeat(Animator animator) {
}
});
animator.setInterpolator(new LinearInterpolator());
animator.setRepeatCount(Animation.INFINITE);
animators.add(animator);
}
}
/**
* 開啟動畫
*/
private void setTwinkle(){
int size = codes.size();
for(int i=0;i<tvs.size();i++){
if(i==size){
animators.get(i).start();
tvs.get(i).setBackground(mContext.getResources().getDrawable(R.drawable.code_border_current_bottom));
}else{
animators.get(i).cancel();
tvs.get(i).setBackground(mContext.getResources().getDrawable(R.drawable.code_border_bottom));
}
}
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
for(int i=0;i<tvs.size();i++){
animators.get(i).cancel();
}
}
}
以上就是本文的全部內容，希望對大傢的學習有所幫助，也希望大傢多多支持WalkonNet。