下跤是點名程式的原始碼，歡迎有趣味的人掠轉去研究。自由軟體上大精神是開放，完全無藏起來的想法。若干焦試用這个android apk，揤這个連結。
package tw.cyc.grid4;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.FragmentTransaction;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;
import android.view.GestureDetector;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.AbsListView;
import android.widget.Adapter;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.NumberPicker;
import android.widget.RadioGroup;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.ExecutionException;
public class MainActivity extends Activity implements NumberPicker.OnValueChangeListener {
ArrayList<HashMap<String, Integer>> location = new ArrayList<HashMap<String, Integer>>();
public int col = 4;
public int pos = 0;
public int num = 0;
public int selected = 0;
public int fontSize = 32;
final int[] color = {Color.argb(255, 153, 51, 0), Color.argb(255, 153, 206, 255), Color.argb(255, 255, 153, 0), Color.argb(255, 194, 194, 214)};
long startTime = 0;
long lastClickTime = 0;
final int CLICK_PERIOD = 400;
GridView grid;
static GridAdapter adapter;
static SharedPreferences spref = null;
static RadioGroup column;
static EditText number ;
static Spinner spinner;
static RadioGroup direction;
static String pack = "";
static public boolean changed = false;
private final static String MY_MESSAGE = "tw.cyc.sendmessage";
int monitorWidth = 0;
int monitorHeight = 0;
public class GridAdapter extends SimpleAdapter {
Context context = null;
public GridAdapter(Context context, List<? extends Map<String, ?>> numbers,
int resource, String[] from, int[] to) {
super(context, numbers, resource, from, to);
this.context = context;
monitorWidth = getResources().getDisplayMetrics().widthPixels;
monitorHeight = getResources().getDisplayMetrics().heightPixels;
}
@Override public View getView(int position, View convertView, ViewGroup parent) {
convertView = LayoutInflater.from(context).inflate(R.layout.gridview_item, null);
HashMap<String, Integer> theMap = (HashMap<String, Integer>) getItem(position);
TextView main_text = (TextView) convertView.findViewById(R.id.main_text);
TextView second_text = (TextView) convertView.findViewById(R.id.second_text);
if (theMap.get("note") < 0) { //note less 0 is virtual main_text.setText("");
}
else if (theMap.get("note") > 0 && theMap.get("note") < 10) {
main_text.setText("0".concat(theMap.get("note").toString()));
}
else {
main_text.setText(theMap.get("note").toString());
}
main_text.setTextSize(fontSize);
main_text.setTextColor(color[pos]);
int rowHeight = 0;
if (location.size()/col <= 10) {
rowHeight = monitorHeight / ((location.size()/col + 4));
}
else rowHeight = monitorHeight / 14;
ListView.LayoutParams param = new ListView.LayoutParams((int) ((monitorWidth - 100) / col), rowHeight);
convertView.setLayoutParams(param);
if (theMap.get("second") < 0) {
second_text.setText("");
}
else if (theMap.get("second") == 0) {
second_text.setText("");
}
else {
main_text.setTextColor(Color.argb(255, 0, 153, 0));
second_text.setText(" ".concat(theMap.get("second").toString()));
second_text.setTextColor(Color.argb(255, 218, 179, 255));
second_text.setTextSize(fontSize - 8);
}
return convertView;
}
}
public int getVirtualNumber(ArrayList<HashMap<String, Integer>> location) {
int virtualNumber = 0;
for (int j=0; j<location.size(); j++) {
if (location.get(j).get("second") < 0) {
virtualNumber++ ;
}
}
return virtualNumber;
}
public int randomSelect(View v) { //no need to check transpose
startTime = System.currentTimeMillis();
if (startTime - lastClickTime < CLICK_PERIOD && lastClickView == v) {
int realSize = location.size() - getVirtualNumber(location);
if (realSize - selected == 0) {
Toast.makeText(MainActivity.this, " 無免點囉！", Toast.LENGTH_SHORT).show();
return 0;
}
int random = (new Random()).nextInt(realSize - selected);
int count = 0; //0 is most low value for (int j=0; j<location.size(); j++) {
if (location.get(j).get("second") == 0) {
if (count == random) {
selected = selected + 1;
location.get(j).put("second", Integer.valueOf(selected));
AlertDialog.Builder builder = new AlertDialog.Builder(this);
TextView msg = new TextView(this); msg.setTextSize(50);
msg.setTextColor(Color.RED);msg.setHeight(400);
msg.setText(location.get(j).get("note").toString());
msg.setGravity(Gravity.CENTER);
builder.setView(msg);
AlertDialog dialog = builder.create();
dialog.show();
WindowManager.LayoutParams params = dialog.getWindow().getAttributes();
params.width = monitorWidth / 3;
dialog.getWindow().setAttributes(params);
break;
}
else count++;
}
}
adapter.notifyDataSetChanged();
return random;
}
lastClickTime = startTime;
lastClickView = v;
return 0;
}
public int getTrow() {
return ((int) (location.size()/col)) + 1;
}
@Override public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) { // 攔截返回鍵 AlertDialog adialog = new AlertDialog.Builder(this)
.setTitle("欲走矣嗎？")
.setPositiveButton("確定",
new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) {
finish();
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog,
int which) { }
}).show();
adialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(Color.argb(255, 0, 153, 0));
adialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(20);
adialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextColor(Color.argb(255, 0, 0, 153));
adialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextSize(20);
}
return true;
}
@Override protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
pack = getPackageName(); //backup for use after ending fragment spref = getSharedPreferences("settings", Context.MODE_PRIVATE);
if (spref.getInt("column",0) == R.id.three) { col = 3; }
else if (spref.getInt("column", 0) == R.id.four) { col = 4; }
else if (spref.getInt("column", 0) == R.id.five) { col = 5; }
num = spref.getInt("number", 32);
pos = spref.getInt("pos", 0);
fontSize = fontSize - (col-3)*4; //袂用float運算??若無會當掉，但是模擬器袂。
for (int j=0; j<num; j++) {
HashMap<String, Integer> map = new HashMap<String, Integer>();
map.put("note", new Integer(j+1));
map.put("second", new Integer(0));
location.add(j, map);
}
grid = (GridView) findViewById(R.id.grid);
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int height = metrics.heightPixels;
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(metrics.widthPixels, (int)(height*0.75));
grid.setLayoutParams(params);
grid.setNumColumns(col);
if (spref.getInt("direction",0) == R.id.verticle) location = transpose(location, col);
adapter = new GridAdapter(this.getBaseContext(), location, R.layout.gridview_item,
new String[] {"note", "second"}, new int[] {R.id.main_text, R.id.second_text});
grid.setAdapter(adapter);
//grid.setOnTouchListener(new View.OnTouchListener() cannot handle position grid.setOnItemClickListener(new AdapterView.OnItemClickListener() {
long startTime = 0;
long lastClickTime = 0;
final int CLICK_PERIOD = 400;
int lastPos = 0;
@Override public void onItemClick(AdapterView parent, View view, int position, long s) {
startTime = System.currentTimeMillis();
if (startTime - lastClickTime < CLICK_PERIOD && position == lastPos) {
TextView main_text = (TextView) view.findViewById(R.id.main_text);
TextView second_text = (TextView) view.findViewById(R.id.second_text);
if (location.get(position).get("second") == -1) {
// just skip virtual item }
else if (location.get(position).get("second") == 0) {
selected ++;
location.get(position).put("second", Integer.valueOf(selected));
}
else {
selected--;
for ( int j=0; j<location.size(); j++) {
if (location.get(j).get("second") > location.get(position).get("second")) {
location.get(j).put("second", location.get(j).get("second")-1);
}
}
location.get(position).put("second", Integer.valueOf(0));
}
adapter.notifyDataSetChanged();
}
lastClickTime = startTime;
lastPos = position;
}
});
registerReceiver(mBroadcast, new IntentFilter(MY_MESSAGE));
}
@Override protected void onDestroy() {
super.onDestroy();
this.unregisterReceiver(this.mBroadcast);
}
static private BroadcastReceiver mBroadcast = new BroadcastReceiver() {
private final static String MY_MESSAGE = "tw.cyc.sendmessage";
@Override public void onReceive(Context mContext, Intent mIntent) {
if(MY_MESSAGE.equals(mIntent.getAction())) {
adapter.notifyDataSetChanged();
Toast.makeText(mContext, "設定值變更了後APP愛重開才有作用。", Toast.LENGTH_LONG).show();
}
}
};
@Override public boolean onCreateOptionsMenu(Menu menu) {
//參數1:群組id, 參數2:itemId, 參數3:item順序, 參數4:item名稱 menu.add(Menu.NONE, 0, 0, "基本設定");
menu.add(Menu.NONE, 2, 0, "臨時設定");
menu.add(Menu.NONE, 1, 0, "使用說明");
return super.onCreateOptionsMenu(menu);
}
public boolean onOptionsItemSelected(MenuItem item) {
//依據itemId來判斷使用者點選哪一個item switch(item.getItemId()) {
case 0:
FragmentTransaction ft = getFragmentManager().beginTransaction();
MyDialogFragment frag = new MyDialogFragment();
frag.show(ft, "tx");
break;
case 1:
help();
break;
case 2:
setNumber();
break;
default:
}
return super.onOptionsItemSelected(item);
}
public ArrayList<HashMap<String, Integer>> transpose(ArrayList<HashMap<String, Integer>> old, int column) {
ArrayList<HashMap<String, Integer>> trans = new ArrayList<HashMap<String, Integer>>();
int trow = (int) Math.ceil((double) old.size()/column);
int moverableRow = (int) Math.ceil((double) old.size()/column) - 2;
int newnum = old.size();
int remainder = old.size() % column; //remainder is 1 first if ( remainder != 0 && (column - remainder - 1) <= moverableRow) { // newnum = num + (column-2 - (remainder-1));
}
if (newnum > num) {
for (int j = 0; j < newnum; j++) {
HashMap<String, Integer> temp = new HashMap<String, Integer>();
temp.put("note", Integer.valueOf(trow * (j % column) + (j / column)));
temp.put("second", Integer.valueOf(0));
trans.add(j, temp);
trans.get(j).put("note", Integer.valueOf(trans.get(j).get("note") + 1));
}
}
else {
int mustChCol = 0; //zero is first if (newnum % column == 0) mustChCol = 0;
else mustChCol = newnum % column + 1; //0 first for (int j=0 ; j< newnum; j++) {
HashMap<String, Integer> temp = new HashMap<String, Integer>();
if (mustChCol != 0 && j%column >= mustChCol) { //mustChCol is 0 first, j is 0 first //temp.put("note", Integer.valueOf(trow * (j % column) + (j / column) - (j % column - (mustChCol-1) - )); temp.put("note", Integer.valueOf(trow * (j % column) + (j / column) - (j % column - mustChCol) - 1));
} else temp.put("note", Integer.valueOf(trow*(j % column) + (j / column)));
temp.put("second", Integer.valueOf(0));
trans.add(j, temp);
trans.get(j).put("note", Integer.valueOf(trans.get(j).get("note") + 1));
}
}
if (remainder > 0 && newnum > num) {
for (int j = 1; j <= column-1 - remainder; j++) {
int change = ((trow - 1) - j) * column + (column - 1); // index 0 begin trans.get(change).put("note", Integer.valueOf(-1));
trans.get(change).put("second", Integer.valueOf(-1));
}
}
return trans;
}
View lastClickView = null;
public void clear(View v) {
startTime = System.currentTimeMillis();
if (startTime - lastClickTime < CLICK_PERIOD && lastClickView == v) {
for (int j=0; j<location.size(); j++) { //check if cleared do nothing if (location.get(j).get("second") > 0) {
AlertDialog adialog = new AlertDialog.Builder(this)
.setTitle("確定欲總清掉？")
.setPositiveButton("確定",
new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) {
selected = 0;
for (int j = 0; j < location.size(); j++) {
if (location.get(j).get("second") != -1) // -1 is virtual , reserved location.get(j).put("second", Integer.valueOf(0));
}
adapter.notifyDataSetChanged();
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) {
}
}).show();
adialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(Color.argb(255, 0, 153, 0));
adialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(20);
adialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextColor(Color.argb(255, 0, 0, 153));
adialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextSize(20);
break;
}
}
}
lastClickTime = startTime;
lastClickView = v;
}
@Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
//Log.i("value is",""+newVal);
}
public void setNumber() {
final Dialog d = new Dialog(MainActivity.this);
d.setTitle("NumberPicker");
d.setContentView(R.layout.dialogview);
Button b1 = (Button) d.findViewById(R.id.button1);
Button b2 = (Button) d.findViewById(R.id.button2);
final NumberPicker np = (NumberPicker) d.findViewById(R.id.numberPicker1);
np.setMaxValue(50); // max value 100 np.setMinValue(3); // min value 0 np.setValue(30);
np.setWrapSelectorWheel(false);
np.setOnValueChangedListener(this);
b1.setOnClickListener(new View.OnClickListener()
{
@Override public void onClick(View v) {
int num = np.getValue();
location.clear();
for (int j=0; j<num; j++) {
HashMap<String, Integer> map = new HashMap<String, Integer>();
map.put("note", new Integer(j+1));
map.put("second", new Integer(0));
location.add(j, map); selected = 0;
}
adapter.notifyDataSetChanged();
d.dismiss();
}
});
b2.setOnClickListener(new View.OnClickListener()
{
@Override public void onClick(View v) {
d.dismiss(); // dismiss the dialog }
});
d.show();
}
public void help() {
AlertDialog adialog = new AlertDialog.Builder(this)
.setTitle("來點名囉--版權佮使用說明")
.setMessage("1.連紲點才有作用，為防止無小心揤著。\n" +
"2.點了的閣點會取消，後壁的攏進一名。\n" +
"3.本軟體是自由軟體，歡迎散佈使用。\n" +
"4.軟體版本2017.08，適用 android4.3以上。\n" +
"台灣軟體自由協會。")
.setPositiveButton("確定",
new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int which) {
}
}).show();
adialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(Color.argb(255, 0, 153, 0));
adialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(20);
}
public class MyDialogFragment extends DialogFragment {
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setStyle(DialogFragment.STYLE_NORMAL, R.style.MY_DIALOG);
}
@Override public void onPause() {
Intent intent = new Intent();
intent.setAction(MY_MESSAGE);
sendBroadcast(intent);
super.onPause();
}
@Override public void onStart() {
super.onStart();
Dialog d = getDialog();
if (d!=null){
int width = ViewGroup.LayoutParams.MATCH_PARENT;
int height = ViewGroup.LayoutParams.MATCH_PARENT;
d.getWindow().setLayout(width, height);
}
}
@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View root = inflater.inflate(R.layout.my_fragment, container, false);
column = (RadioGroup) root.findViewById(R.id.column);
column.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override public void onCheckedChanged(RadioGroup group, int checkedId) {
spref.edit().putInt("column", checkedId).apply();
changed = true;
}
});
column.check(spref.getInt("column", 0));
number = (EditText) root.findViewById(R.id.number);
number.setText(Integer.toString(spref.getInt("number", 0)));
number.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
spref.edit().putInt("number", Integer.parseInt(number.getText().toString())).apply();
changed = true;
}
});
spinner = (Spinner) root.findViewById(R.id.spinner);
ArrayAdapter colorList = ArrayAdapter.createFromResource(root.getContext(),
R.array.color, android.R.layout.simple_dropdown_item_1line);
spinner.setAdapter(colorList);
spinner.setSelection(spref.getInt("pos", 0));
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
spref.edit().putInt("pos", position).apply();
changed = true;
}
@Override public void onNothingSelected(AdapterView<?> parent) { }
});
direction = (RadioGroup) root.findViewById(R.id.direction);
direction.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override public void onCheckedChanged(RadioGroup group, int checkedId) {
spref.edit().putInt("direction", checkedId).apply();
changed = true;
}
});
direction.check(spref.getInt("direction", 0));
return root;
}
}
