import android.app.Activity;
import android.content.Context;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;/**
*
* ModifyCountDialog ModifyCountDialog = new ModifyCountDialog.Builder(
* Activity.this,2030L).build();
* ModifyCountDialog.setModifyCountListener(new ModifyCountListener(){
* @Override
* public void onDelivered(long Count) {
* Log.d(TAG, "--------送你"+Count+"朵花");
* }
*
* });
* ModifyCountDialog.show();
*
*
*/
public class ModifyCountDialog extends popDialog implements OnClickListener
,OnTouchListener{ private static final String TAG = "ModifyCountDialog";
private static final int SCORE_PER_ = 10; // currentScore = totalScore - Count * SCORE_PER_ private Activity mActivity;
private String title; // title string, have default
// R.string.dialog_deliver__title
private long totalScore; // user total score private long mMaxCount = 0;
private long mCurrentCount = 0;
private long mCurrentScore; private Button mBtnCountSub;
private Button mBtnCountAdd; private TextView mTvScore;
private EditText mEditCount;// private boolean isButtonCountChange=false; public static class Builder {
private final Activity mActivity; private String title;
private long score; // user current score /**
* @param context
* @param score
*/
public Builder(Activity context, long score) {
this.mActivity = context;
this.score = score;
} public Builder title(String title) {
this.title = title;
return this;
} public ModifyCountDialog build() {
return new ModifyCountDialog(this);
}
} private ModifyCountDialog(Builder builder) {
super(builder.mActivity);
this.mActivity = builder.mActivity;
this.totalScore = builder.score; if (this.totalScore > 0) {
this.mMaxCount = (long) (this.totalScore / SCORE_PER_);
this.mCurrentScore = this.totalScore;
} if (!TextUtils.isEmpty(builder.title)) {
this.title = builder.title;
} initDialog();
} private void initDialog() {
View view = LayoutInflater.from(mActivity).inflate(
R.layout.dialog_deliver_, null, false); view.findViewById(R.id.btn_cancle).setOnClickListener(this);
view.findViewById(R.id.btn_deliver).setOnClickListener(this); mBtnCountSub = (Button) view
.findViewById(R.id.dialog_deliver__count_sub);
mBtnCountSub.setOnClickListener(this); mBtnCountAdd = (Button) view
.findViewById(R.id.dialog_deliver__count_add);
mBtnCountAdd.setOnClickListener(this); mTvScore = (TextView) view
.findViewById(R.id.dialog_deliver__score_tv);
mTvScore.setText(String.valueOf(totalScore)); mEditCount = (EditText) view
.findViewById(R.id.dialog_deliver__count); mEditCount.setOnTouchListener(this); //set keyboard property, the dialog will push up getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE |WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN); this.build(view, true);
} @Override
public boolean onTouch(View v, MotionEvent event) {
if(v.getId()==R.id.dialog_deliver_flower_count) {
mEditFlowerCount.selectAll(); //select all character in EditText
showKeyboard(mEditFlowerCount); //without calling this. keyboard hide
return true;
}
return false;
} private boolean isCountLegal(long count){
return (count >=0)&&(count <= mMaxCount);
} /**
* EditText text change watcher
*
* when user input is illegal, setText to 0 or MaxCount
*
* warn: call setText() in wrong place, will cause infinite loop and StackOverFlow
*
*/
TextWatcher mTextWatcher = new TextWatcher() {
private long mCount;
@Override
public void onTextChanged(CharSequence s, int start, int before,int count) { } @Override
public void beforeTextChanged(CharSequence s, int start, int count,int after) { } @Override
public void afterTextChanged(Editable s) {
String str = s.toString();
// Log.d(TAG, "---myc---afterTextChanged str------" + str);
if(!TextUtils.isEmpty(str) && TextUtils.isDigitsOnly(str)){
mCount = Long.parseLong(str);
}else{
mCount = 0;
} //if user input is illegal, set to legal count
if(!isCountLegal(mCount)){
if(mCount < 0){
mCount = 0;
}else if(mCount > mMaxFlowerCount){
mCount = mMaxFlowerCount;
}
mEditFlowerCount.setText(String.valueOf(mCount)); //illegal, set to 0 or maxFlowerCount
mEditFlowerCount.selectAll();
}
setCurrentFlowerCount(mCount);
}
}; /**
* getter
*
* @return
*/
public long getCurrentCount() {
return this.mCurrentCount;
} /**
* setter
*
* @return
*/
public void setCurrentCount(long Count) {
if(isCountLegal(Count) && Count!=mCurrentCount){
Log.d(TAG, "---setCurrentCount------" + Count);
this.mCurrentCount = Count;
refreshUI(Count);
}
} ModifyCountListener mModifyCountListener; public interface ModifyCountListener { //在Activity里弹框获取用户输入,可以通过回调的方法来获取用户输入值
void onModified(long Count);
} public void setModifyCountListener(ModifyCountListener listener) {
mModifyCountListener = listener;
} /**
* user press "modify" button
*
*/
private void doModifyCount() {
if (mModifyCountListener != null) {
mModifyCountListener.onModified(mCurrentCount); //将值回调给Activity
}
} /**
* refresh EditText, current core TextView and so on
*
* @param Count
*/
private void refreshUI(long Count) {
mCurrentScore = totalScore - Count * SCORE_PER_; if (mCurrentScore >= 0) {
mTvScore.setText(String.valueOf(mCurrentScore));
} if (Count <= 0) {
setBtnClickable(false, true);
} else if (Count >= mMaxCount) {
setBtnClickable(true, false);
} else {
setBtnClickable(true, true);
}
} /**
* hide keyboard
*
* @param v
*/
private void hideKeyboard(View v) {
// Log.d(TAG, "---hideKeyboard()------");
if(v == null){
return;
}
InputMethodManager imm = (InputMethodManager) v.getContext()
.getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
} /**
* show keyboard
*
* @param v
*/
private void showKeyboard(View v) {
// Log.d(TAG, "---showKeyboard()------");
if(v == null){
return;
}
InputMethodManager imm = (InputMethodManager) v.getContext()
.getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(v, 0);
} /**
* set Button Clickable
*
* @param canSub
* if true, can sub count
* @param canAdd
* if true, can add count
*/
private void setBtnClickable(boolean canSub, boolean canAdd) {
mBtnCountSub.setClickable(canSub);
mBtnCountAdd.setClickable(canAdd);
}@Override
public void onClick(View view) {
if(!view.equals(R.id.dialog_deliver__count))
{
hideKeyboard(mEditCount);
}
switch (view.getId()) {
case R.id.btn_cancle:
this.dismiss();
break;
case R.id.btn_deliver:
doModifyCount();
this.dismiss();
break;
case R.id.count_sub:
if (mCurrentCount > 0) {
setCurrentCount(mCurrentCount - 1);
mEditCount.setText(String.valueOf(mCurrentCount));
}
break;
case R.id.count_add:
if (getCurrentCount() < mMaxCount) {
setCurrentCount(getCurrentCount() + 1);
mEditCount.setText(String.valueOf(mCurrentCount));
}
break;
default:
break;
}
}
}
包括
（1）隐藏 和 弹出键盘
/**
* hide keyboard
*
* @param v
*/
private void hideKeyboard(View v) {
// Log.d(TAG, "---hideKeyboard()------");
if(v == null){
return;
}
InputMethodManager imm = (InputMethodManager) v.getContext()
.getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
} /**
* show keyboard
*
* @param v
*/
private void showKeyboard(View v) {
// Log.d(TAG, "---showKeyboard()------");
if(v == null){
return;
}
InputMethodManager imm = (InputMethodManager) v.getContext()
.getSystemService(Context.INPUT_METHOD_SERVICE); imm.showSoftInput(v, 0);
}
（2）防止键盘挡住输入框
//set keyboard property, the dialog will push up 防止EditText被挡住, 往上推Dialog
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE |
WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
（3）点击EditText以外的区域，隐藏键盘，注意父view要设置onClickListener
parentView.setOnClickListener(this); @Override
public void onClick(View view) {
if(!view.equals(R.id.dialog_deliver__count))
{
hideKeyboard(mEditCount);
}
}
本来想在 EditText OnFocusListener()里监听, 失去焦点后,隐藏键盘. 不起作用
因为对话框弹出的时候, EditText的isFocused是true的。除非点击按钮等，才会失去焦点。但是现在是想点击任何区域都失去焦点。
所以需要通过监听整个父控件
（4） 监听EditText输入
官方文档也指出：千万注意别在三个方法里随意重复调用setText，会死循环
mEditCount.addTextChangedListener(mTextWatcher); //先给EditText设置监听
/**
* EditText text change watcher
*
* when user input is illegal, setText to 0 or MaxCount
*
* warn: call setText() in wrong place, will cause infinite loop and StackOverFlow
*
*/
TextWatcher mTextWatcher = new TextWatcher() {
private long mCount;
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) { } @Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) { } @Override
public void afterTextChanged(Editable s) {
String str = s.toString();
// Log.d(TAG, "---afterTextChanged str------" + str); if(!TextUtils.isEmpty(str) && TextUtils.isDigitsOnly(str)){
mCount = Long.parseLong(str);
}else{
mCount = 0;
} //if user input is illegal, set to legal count
if(!isCountLegal(mCount)){
if(mCount < 0){
mCount = 0;
}else if(mCount > mMaxCount){
mCount = mMaxCount;
}
mEditCount.setText(String.valueOf(mCount)); //illegal, set to 0 or maxCount
mEditCount.selectAll(); //如果设置成最大值以后不全选,再点一个数字.s比最大值还大,EditText没反 //应,看起来就像失去焦点了. 但事实上调用 isFocused判断时, 还是有焦点的
}
setCurrentCount(mCount);
}
};
（5）全选一个输入框的内容
@Override
public boolean onTouch(View v, MotionEvent event) {
if(v.getId()==R.id.dialog_deliver__count) {
mEditCount.selectAll(); //全选EditText的内容
showKeyboard(mEditCount); //全选完如果不调用这个,不弹出键盘
return true;
}
return false;
}
