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一.小伙伴們在做錢包支付中,相信會有個繞不過去的輸入支付密碼頁面。下面小編給個效果圖:
898342572738938468.png
實現(xiàn)的原理很簡單,要點(diǎn)如下:
a.自定義EditTextView
b.自定義EditTextView嵌套入Dialog中,點(diǎn)擊緊貼軟鍵盤彈出。
c.監(jiān)聽軟鍵盤的彈出和收起事件,當(dāng)軟鍵盤收起,dialog也關(guān)閉。
二.下面開始講述實現(xiàn)的步驟(圍繞上面原理,按三個步驟闡述)。
步驟1.自定義EditTextView.這里,小編采用的解決方案是網(wǎng)上一個開源的EditTextView,源碼如下:
public class PayPwdEditText extends RelativeLayout { private EditText editText; //文本編輯框 private Context context; private LinearLayout linearLayout; //文本密碼的文本 private TextView[] textViews; //文本數(shù)組 private int pwdlength = 6; //密碼長度, 默認(rèn)6 private OnTextFinishListener onTextFinishListener; public PayPwdEditText(Context context) { this(context, null); } public PayPwdEditText(Context context, AttributeSet attrs) { this(context, attrs, 0); } public PayPwdEditText(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); this.context = context; } /** * @param bgdrawable 背景drawable * @param pwdlength 密碼長度 * @param splilinewidth 分割線寬度 * @param splilinecolor 分割線顏色 * @param pwdcolor 密碼字體顏色 * @param pwdsize 密碼字體大小 */ public void initStyle(int bgdrawable, int pwdlength, float splilinewidth, int splilinecolor, int pwdcolor, int pwdsize) { this.pwdlength = pwdlength; initEdit(bgdrawable); initShowInput(bgdrawable, pwdlength, splilinewidth, splilinecolor, pwdcolor, pwdsize); } /** * 初始化編輯框 * @param bgcolor */ private void initEdit(int bgcolor) { editText = new EditText(context); editText.setBackgroundResource(bgcolor); editText.setCursorVisible(false); editText.setTextSize(0); editText.setInputType(InputType.TYPE_NUMBER_VARIATION_PASSWORD | InputType.TYPE_CLASS_NUMBER); editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(pwdlength)}); editText.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { Editable etext = editText.getText(); Selection.setSelection(etext, etext.length()); } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { initDatas(s); if(s.length() == pwdlength) { if(onTextFinishListener != null) { onTextFinishListener.onFinish(s.toString().trim()); } } } }); LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT); lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE); addView(editText, lp); } /** * @param bgcolor 背景drawable * @param pwdlength 密碼長度 * @param slpilinewidth 分割線寬度 * @param splilinecolor 分割線顏色 * @param pwdcolor 密碼字體顏色 * @param pwdsize 密碼字體大小 */ public void initShowInput(int bgcolor, int pwdlength, float slpilinewidth, int splilinecolor, int pwdcolor, int pwdsize) { //添加密碼框父布局 linearLayout = new LinearLayout(context); linearLayout.setBackgroundResource(bgcolor); LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); linearLayout.setLayoutParams(layoutParams); linearLayout.setOrientation(LinearLayout.HORIZONTAL); addView(linearLayout); //添加密碼框 textViews = new TextView[pwdlength]; LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT); params.weight = 1; params.gravity = Gravity.CENTER; LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(dip2px(context, slpilinewidth), LayoutParams.MATCH_PARENT); for(int i = 0; i < textViews.length; i++) { final int index = i; TextView textView = new TextView(context); textView.setGravity(Gravity.CENTER); textViews[i] = textView; textViews[i].setTextSize(pwdsize); textViews[i].setTextColor(context.getResources().getColor(pwdcolor)); textViews[i].setInputType(InputType.TYPE_NUMBER_VARIATION_PASSWORD | InputType.TYPE_CLASS_NUMBER); linearLayout.addView(textView, params); if(i < textViews.length - 1) { View view = new View(context); view.setBackgroundColor(context.getResources().getColor(splilinecolor)); linearLayout.addView(view, params2); } } } /** * 是否顯示明文 * @param showPwd */ public void setShowPwd(boolean showPwd) { int length = textViews.length; for(int i = 0; i < length; i++) { if (showPwd) { textViews[i].setTransformationMethod(PasswordTransformationMethod.getInstance()); } else { textViews[i].setTransformationMethod(HideReturnsTransformationMethod.getInstance()); } } } /** * 設(shè)置顯示類型 * @param type */ public void setInputType(int type) { int length = textViews.length; for(int i = 0; i < length; i++) { textViews[i].setInputType(type); } } /** * 清除文本框 */ public void clearText() { editText.setText(""); for(int i = 0; i < pwdlength; i++) { textViews[i].setText(""); } } public void setOnTextFinishListener(OnTextFinishListener onTextFinishListener) { this.onTextFinishListener = onTextFinishListener; } /** * 根據(jù)輸入字符,顯示密碼個數(shù) * @param s */ public void initDatas(Editable s) { if(s.length() > 0) { int length = s.length(); for(int i = 0; i < pwdlength; i++) { if(i < length) { for(int j = 0; j < length; j++) { char ch = s.charAt(j); textViews[j].setText(String.valueOf(ch)); } } else { textViews[i].setText(""); } } } else { for(int i = 0; i < pwdlength; i++) { textViews[i].setText(""); } } } public String getPwdText() { if(editText != null) return editText.getText().toString().trim(); return ""; } public static int dip2px(Context context, float dipValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dipValue * scale + 0.5f); } public interface OnTextFinishListener { void onFinish(String str); } public void setFocus() { editText.requestFocus(); editText.setFocusable(true); showKeyBord(editText); } /** * 顯示鍵盤 * @param view */ public void showKeyBord(View view) { InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(view, InputMethodManager.SHOW_FORCED); } }
該P(yáng)ayPwdEditText使用方法也很簡單:
a.調(diào)用initStyle方法創(chuàng)建你需要設(shè)置的樣式(參數(shù)說明,詳見源碼里面有方法注釋):
final PayPwdEditText ppet = (PayPwdEditText) view.findViewById(R.id.dialog_ppet); /** * @param bgcolor 背景drawable * @param pwdlength 密碼長度 * @param slpilinewidth 分割線寬度 * @param splilinecolor 分割線顏色 * @param pwdcolor 密碼字體顏色 * @param pwdsize 密碼字體大小 */ ppet.initStyle(R.drawable.edit_num_bg, 6, 0.33f, R.color.yellow, R.color.yellow, 30);
其中,背景R.drawable.edit_num_bg所對應(yīng)的樣式代碼如下:
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" > <item android:state_pressed="false"> <shape> <!--圓角大小--> <corners android:radius="5dip"/> <!--背景填充色--> <solid android:color="@color/rdb_bg"/> <!--背景外圍分割線顏色及寬度--> <stroke android:color="@color/yellow" android:width="0.3dp"/> </shape> </item> </selector>
以上&&以下需要使用到的色值如下:
<color name="rdb_bg">#151515</color> <color name="yellow">#fdd108</color> <color name="transparent">#00000000</color>
b.設(shè)置密碼輸入完成后的回調(diào):
ppet.setOnTextFinishListener(new PayPwdEditText.OnTextFinishListener() { @Override public void onFinish(String str) {//密碼輸入完后的回調(diào) //手動收起軟鍵盤 InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(ppet.getWindowToken(), 0); //支付密碼輸入框消失 walletDialog.dismiss(); } });
c.延遲彈起軟鍵盤,使PayPwdEditText獲取焦點(diǎn):
new Handler().postDelayed(new Runnable() { @Override public void run() { ppet.setFocus(); } }, 100);
步驟2.自定義的EditTextView設(shè)置好了,那么,得將它放到Dialog中加以使用了:
//將此方法放在按鈕的點(diǎn)擊事件中即可彈出輸入支付密碼頁面 private void showEditPayPwdDialog() { View view = getLayoutInflater().inflate(R.layout.dialog_et_paypwd, null); walletDialog = new Dialog(this, R.style.walletFrameWindowStyle); walletDialog.setContentView(view, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); final Window window = walletDialog.getWindow(); WindowManager.LayoutParams wl = window.getAttributes(); //緊貼軟鍵盤彈出 wl.gravity = Gravity.BOTTOM; // 以下這兩句是為了保證按鈕可以水平滿屏 wl.width = ViewGroup.LayoutParams.MATCH_PARENT; wl.height = ViewGroup.LayoutParams.WRAP_CONTENT; walletDialog.onWindowAttributesChanged(wl); walletDialog.setCanceledOnTouchOutside(false); walletDialog.show(); final PayPwdEditText ppet = (PayPwdEditText) view.findViewById(R.id.dialog_ppet); //調(diào)用initStyle方法創(chuàng)建你需要設(shè)置的樣式 ppet.initStyle(R.drawable.edit_num_bg, 6, 0.33f, R.color.yellow, R.color.yellow, 30); ppet.setOnTextFinishListener(new PayPwdEditText.OnTextFinishListener() { @Override public void onFinish(String str) {//密碼輸入完后的回調(diào) //手動收起軟鍵盤 InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(ppet.getWindowToken(), 0); //支付密碼輸入框消失 walletDialog.dismiss(); //可在此執(zhí)行下一步操作 } }); //延遲彈起軟鍵盤,使PayPwdEditText獲取焦點(diǎn) new Handler().postDelayed(new Runnable() { @Override public void run() { ppet.setFocus(); } }, 100); }
Dialog對應(yīng)的xml文件代碼如下(@dimen/y30等為小編采用的適配方案,大家可自行轉(zhuǎn)換為等值的px):
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:alpha="13" android:background="@color/transparent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="center" android:background="@color/rdb_bg" android:orientation="vertical"> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/tv_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="@dimen/y30" android:text="輸入支付密碼" android:textColor="@color/white" /> <com.enterprise.moshare.xdht.view.widget.PayPwdEditText android:id="@+id/dialog_ppet" android:layout_marginTop="@dimen/y30" android:layout_width="@dimen/x544" android:layout_height="@dimen/y78" android:layout_below="@+id/tv_title" android:layout_marginBottom="@dimen/y40" android:layout_centerHorizontal="true" /> </RelativeLayout> </LinearLayout> </LinearLayout>
Dialog對應(yīng)的style樣式如下:
<!--支付密碼Dialog篩選器--> <style name="walletFrameWindowStyle" parent="android:style/Theme.Dialog"> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowNoTitle">true</item> </style>
步驟3:監(jiān)聽軟鍵盤的彈出和收起事件,當(dāng)軟鍵盤收起,dialog也關(guān)閉。實現(xiàn)思路很簡單:監(jiān)聽窗體的不可見區(qū)域的高度,判斷是否大于屏幕高度的1/4即可(實現(xiàn)此步驟的目的是,當(dāng)你點(diǎn)擊軟鍵盤中的收起按鈕時,也能自行關(guān)閉Dialog)。
在Activity的onCreate方法中,加入如下代碼即可實現(xiàn)監(jiān)聽:
final View decorView = getWindow().getDecorView(); decorView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { @Override public void onGlobalLayout() { Rect rect = new Rect(); //1、獲取main在窗體的可視區(qū)域 decorView.getWindowVisibleDisplayFrame(rect); //2、獲取main在窗體的不可視區(qū)域高度,在鍵盤沒有彈起時,main.getRootView().getHeight()調(diào)節(jié)度應(yīng)該和rect.bottom高度一樣 int mainInvisibleHeight = decorView.getRootView().getHeight() - rect.bottom; int screenHeight = decorView.getRootView().getHeight();//屏幕高度 //3、不可見區(qū)域大于屏幕本身高度的1/4:說明鍵盤彈起了 if (mainInvisibleHeight > screenHeight / 4) { //軟鍵盤顯示 LogUtils.d(TAG, "show------------" + rect.bottom + "----" + decorView.getRootView().getHeight()); } else { //軟鍵盤隱藏 if (walletDialog!=null){ //在軟鍵盤隱藏時,關(guān)閉Dialog。 walletDialog.dismiss(); } } } });
三.到此,就已經(jīng)實現(xiàn)了輸入支付密碼的功能。隨手分享,喜歡的朋友可以關(guān)注簡書號MiHomes,后續(xù)會有更多更好的博客推送給您。
總結(jié)
以上所述是小編給大家介紹的Android 錢包支付之輸入支付密碼的實現(xiàn)步驟,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會及時回復(fù)大家的。在此也非常感謝大家對億速云網(wǎng)站的支持!
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