高仿支付界面实现
public class MyView extends RelativeLayout {
Context context;
private String strPassword; // 输入的密码
private TextView[] tvList; // 就6个输入框不会变了，用数组内存申请固定空间，比List省空间
private GridView gridView; // 用GrideView布局键盘，其实并不是真正的键盘，只是模拟键盘的功能
private ArrayList<Map<String, String>> valueList; // 要用Adapter中适配，用数组不能往adapter中填充
private ImageView tvCancel;//取消按钮
private TextView tvForget;//忘记密码按钮
private int currentIndex = -1; // 用于记录当前输入密码格位置
public MyView(Context context) {
this(context, null);
}
public MyView(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
//view布局
View view = View.inflate(context, R.layout.layout_popup_bottom, null);
valueList = new ArrayList<Map<String, String>>();
tvList = new TextView[6];
//初始化控件
tvCancel=(ImageView) view.findViewById(R.id.tvCancel);
tvForget = (TextView) view.findViewById(R.id.tv_forgetPwd);
tvList[0] = (TextView) view.findViewById(R.id.tv_pass1);
tvList[1] = (TextView) view.findViewById(R.id.tv_pass2);
tvList[2] = (TextView) view.findViewById(R.id.tv_pass3);
tvList[3] = (TextView) view.findViewById(R.id.tv_pass4);
tvList[4] = (TextView) view.findViewById(R.id.tv_pass5);
tvList[5] = (TextView) view.findViewById(R.id.tv_pass6);
//初始化键盘
gridView = (GridView) view.findViewById(R.id.gv_keybord);
//设置键盘显示按钮到集合
setView();
// 必须要，不然不显示控件
addView(view);
}
//设置按钮显示内容
private void setView() {
// 初始化按钮上应该显示的数字
for (int i = 1; i < 13; i++) {
Map<String, String> map = new HashMap<String, String>();
if (i < 10) {
map.put("name", String.valueOf(i));
} else if (i == 10) {
map.put("name", "");
} else if (i == 12) {
map.put("name", "<<-");
} else if (i == 11) {
map.put("name", String.valueOf(0));
}
valueList.add(map);
}
//为键盘gridview设置适配器
gridView.setAdapter(adapter);
//为键盘按键添加点击事件
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// 点击0~9按钮
if (position < 11 && position != 9) {
// 判断输入位置————要小心数组越界
if (currentIndex >= -1 && currentIndex < 5) {
tvList[++currentIndex].setText(valueList.get(position)
.get("name"));
}
} else {
// 点击退格键
if (position == 11) {
// 判断是否删除完毕————要小心数组越界
if (currentIndex - 1 >= -1) {
tvList[currentIndex--].setText("");
}
}
}
}
});
}
// 设置监听方法，在第6位输入完成后触发
public void setOnFinishInput(final OnPasswordInputFinish pass) {
tvList[5].addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {
}
@Override
public void afterTextChanged(Editable s) {
if (s.toString().length() == 1) {
// 每次触发都要先将strPassword置空，再重新获取，避免由于输入删除再输入造成混乱
strPassword = "";
for (int i = 0; i < 6; i++) {
strPassword += tvList[i].getText().toString().trim();
}
// 接口中要实现的方法，完成密码输入完成后的响应逻辑
pass.inputFinish();
}
}
});
tvCancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//点击取消调用接口
pass.outfo();
}
});
tvForget.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//单击忘记密码调用接口
pass.forgetPwd();
}
});
}
//获取输入的密码
public String getStrPassword() {
return strPassword;
}
// GrideView的适配器
BaseAdapter adapter = new BaseAdapter() {
@Override
public int getCount() {
return valueList.size();
}
@Override
public Object getItem(int position) {
return valueList.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView == null) {
//装载数字键盘布局
convertView = View.inflate(context, R.layout.item_gride, null);
viewHolder = new ViewHolder();
//初始化键盘按钮
viewHolder.btnKey = (TextView) convertView
.findViewById(R.id.btn_keys);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
//设置按钮显示数字
viewHolder.btnKey.setText(valueList.get(position).get("name"));
if (position == 9) {
//设置按钮背景
viewHolder.btnKey
.setBackgroundResource(R.drawable.selector_key_del);
//设置按钮不可点击
viewHolder.btnKey.setEnabled(false);
}
if (position == 11) {
//设置按钮背景
viewHolder.btnKey
.setBackgroundResource(R.drawable.selector_key_del);
}
return convertView;
}
};
// 存放控件
public final class ViewHolder {
public TextView btnKey;
}
}