一.小伙伴们在做钱包支付中,相信会有个绕不过去的输入支付密码页面。下面小编给个效果图:
898342572738938468.png
实现的原理很简单,要点如下:
a.自定义EditTextView
b.自定义EditTextView嵌套入Dialog中,点击紧贴软键盘弹出。
c.监听软键盘的弹出和收起事件,当软键盘收起,dialog也关闭。
二.下面开始讲述实现的步骤(围绕上面原理,按三个步骤阐述)。
步骤1.自定义EditTextView.这里,小编采用的解决方案是网上一个开源的EditTextView,源码如下:
public class PayPwdEditText extends RelativeLayout { private EditText editText; //文本编辑框 private Context context; private LinearLayout linearLayout; //文本密码的文本 private TextView[] textViews; //文本数组 private int pwdlength = 6; //密码长度, 默认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 密码长度 * @param splilinewidth 分割线宽度 * @param splilinecolor 分割线颜色 * @param pwdcolor 密码字体颜色 * @param pwdsize 密码字体大小 */ 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); } /** * 初始化编辑框 * @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 密码长度 * @param slpilinewidth 分割线宽度 * @param splilinecolor 分割线颜色 * @param pwdcolor 密码字体颜色 * @param pwdsize 密码字体大小 */ public void initShowInput(int bgcolor, int pwdlength, float slpilinewidth, int splilinecolor, int pwdcolor, int pwdsize) { //添加密码框父布局 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); //添加密码框 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); } } } /** * 是否显示明文 * @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()); } } } /** * 设置显示类型 * @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; } /** * 根据输入字符,显示密码个数 * @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); } /** * 显示键盘 * @param view */ public void showKeyBord(View view) { InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(view, InputMethodManager.SHOW_FORCED); } }
该PayPwdEditText使用方法也很简单:
a.调用initStyle方法创建你需要设置的样式(参数说明,详见源码里面有方法注释):
final PayPwdEditText ppet = (PayPwdEditText) view.findViewById(R.id.dialog_ppet); /** * @param bgcolor 背景drawable * @param pwdlength 密码长度 * @param slpilinewidth 分割线宽度 * @param splilinecolor 分割线颜色 * @param pwdcolor 密码字体颜色 * @param pwdsize 密码字体大小 */ 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所对应的样式代码如下:
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android" > <item android:state_pressed="false"> <shape> <!--圆角大小--> <corners android:radius="5dip"/> <!--背景填充色--> <solid android:color="@color/rdb_bg"/> <!--背景外围分割线颜色及宽度--> <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.设置密码输入完成后的回调:
ppet.setOnTextFinishListener(new PayPwdEditText.OnTextFinishListener() { @Override public void onFinish(String str) {//密码输入完后的回调 //手动收起软键盘 InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(ppet.getWindowToken(), 0); //支付密码输入框消失 walletDialog.dismiss(); } });
c.延迟弹起软键盘,使PayPwdEditText获取焦点:
new Handler().postDelayed(new Runnable() { @Override public void run() { ppet.setFocus(); } }, 100);
步骤2.自定义的EditTextView设置好了,那么,得将它放到Dialog中加以使用了:
//将此方法放在按钮的点击事件中即可弹出输入支付密码页面 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(); //紧贴软键盘弹出 wl.gravity = Gravity.BOTTOM; // 以下这两句是为了保证按钮可以水平满屏 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); //调用initStyle方法创建你需要设置的样式 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) {//密码输入完后的回调 //手动收起软键盘 InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(ppet.getWindowToken(), 0); //支付密码输入框消失 walletDialog.dismiss(); //可在此执行下一步操作 } }); //延迟弹起软键盘,使PayPwdEditText获取焦点 new Handler().postDelayed(new Runnable() { @Override public void run() { ppet.setFocus(); } }, 100); }
Dialog对应的xml文件代码如下(@dimen/y30等为小编采用的适配方案,大家可自行转换为等值的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="输入支付密码" 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对应的style样式如下:
<!--支付密码Dialog筛选器--> <style name="walletFrameWindowStyle" parent="android:style/Theme.Dialog"> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowNoTitle">true</item> </style>
步骤3:监听软键盘的弹出和收起事件,当软键盘收起,dialog也关闭。实现思路很简单:监听窗体的不可见区域的高度,判断是否大于屏幕高度的1/4即可(实现此步骤的目的是,当你点击软键盘中的收起按钮时,也能自行关闭Dialog)。
在Activity的onCreate方法中,加入如下代码即可实现监听:
final View decorView = getWindow().getDecorView(); decorView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { @Override public void onGlobalLayout() { Rect rect = new Rect(); //1、获取main在窗体的可视区域 decorView.getWindowVisibleDisplayFrame(rect); //2、获取main在窗体的不可视区域高度,在键盘没有弹起时,main.getRootView().getHeight()调节度应该和rect.bottom高度一样 int mainInvisibleHeight = decorView.getRootView().getHeight() - rect.bottom; int screenHeight = decorView.getRootView().getHeight();//屏幕高度 //3、不可见区域大于屏幕本身高度的1/4:说明键盘弹起了 if (mainInvisibleHeight > screenHeight / 4) { //软键盘显示 LogUtils.d(TAG, "show------------" + rect.bottom + "----" + decorView.getRootView().getHeight()); } else { //软键盘隐藏 if (walletDialog!=null){ //在软键盘隐藏时,关闭Dialog。 walletDialog.dismiss(); } } } });
三.到此,就已经实现了输入支付密码的功能。随手分享,喜欢的朋友可以关注简书号MiHomes,后续会有更多更好的博客推送给您。
总结
以上所述是小编给大家介绍的Android 钱包支付之输入支付密码的实现步骤,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对自由互联网站的支持!