如何在Gridview中删除单元格填充
我希望有人可以帮助我。我创建了一个Sudoku应用程序。我有一个网格视图，显示列表视图中的字符串文本。我的手机和平板电脑的网格视图布局有问题; ，请参阅下面的第1和第2个屏幕。
我尝试做的是设置屏幕，因此网格显示整齐地位于数字1到5的上方。理想情况下，我希望它能够在平板电脑和手机上正确呈现。
在手机上显示第一组按钮按钮下方的数独网格的最后一行请参阅firstImage。而在平板电脑上，gridvview和Buttons之间存在巨大差距
到目前为止我尝试了什么： 我试过android：layout_above btn1。但是这切断了数独网格的最后一行，我不得不上下拖动网格以查看手机的最后一行。它还导致应用程序崩溃的手机。不好。
我尝试在相对布局中放置一个框架布局，并将gridview放在其中。但是根据layout_above，它也被截断了数独网格的最后一行。
我真正想做的是，在手机上我想删除或减少网格视图中每个单元格中每个数字上方和下方的填充。由于细胞填充使网格中的每个细胞比它需要的大2-3倍。这是5＆＃34;手机屏幕。我尝试了以下内容，但没有一个有效。
How do I get rid of unwanted padding in a Listview row android：gravity - 没有差别
How to avoid space between imageview and gridview in linearlayout listSelector =“@ null” - 没有区别
Removing the extra padding in a GridView in android stretchMode（0）; - 一切都消失了。
How do I get rid of unwanted padding in a Listview row view.setMinimumHeight（0）; - 没有区别。
我也尝试过view.setPadding（）;它是有用的，因为左侧的衬垫被移除，但它没有移除顶部或底部的papdding。
view.setPadding（dpToPx（0，parent），0,0,0）;
在这个阶段我不知道如何推动这一进程，我担心尝试所有这些不同的事情会让我更加困惑。如果有人能指出我正确的方向，我将非常感激。代码如下所示
content_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.admin1.sudoku.MainActivity"
android:background="#663399"
tools:showIn="@layout/activity_main">
<Button
android:id="@+id/btn1"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn1Label"
android:layout_above="@+id/btn6"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignBottom="@+id/btn2"
/>
<Button
android:id="@+id/btn2"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn2Label"
android:layout_above="@+id/btn7"
android:layout_toLeftOf="@+id/btn8"
android:layout_toStartOf="@+id/btn8" />
<Button
android:id="@+id/btn3"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn3Label"
android:layout_alignTop="@+id/btn2"
android:layout_toRightOf="@+id/btn2"
android:layout_toEndOf="@+id/btn2" />
<Button
android:id="@+id/btn4"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn4Label"
android:layout_alignTop="@+id/btn3"
android:layout_toRightOf="@+id/btn3"
android:layout_toEndOf="@+id/btn3" />
<Button
android:id="@+id/btn5"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn5Label"
android:layout_alignTop="@+id/btn4"
android:layout_toRightOf="@+id/btn4"
android:layout_toEndOf="@+id/btn4" />
<Button
android:id="@+id/btn6"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn6Label"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:id="@+id/btn7"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn7Label"
android:layout_alignParentBottom="true"
android:layout_toRightOf="@+id/btn6"
android:layout_toEndOf="@+id/btn6" />
<Button
android:id="@+id/btn8"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn8Label"
android:layout_alignParentBottom="true"
android:layout_toRightOf="@+id/btn7"
android:layout_toEndOf="@+id/btn7" />
<Button
android:id="@+id/btn9"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn9Label"
android:layout_alignParentBottom="true"
android:layout_toRightOf="@+id/btn3"
android:layout_toEndOf="@+id/btn3" />
<Button
android:id="@+id/btn0"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn0Label"
android:layout_alignParentBottom="true"
android:layout_toRightOf="@+id/btn9"
android:layout_toEndOf="@+id/btn9" />
<Button
android:id="@+id/btnCheck"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btnCheckLabel"
android:layout_below="@+id/gridView1"
android:layout_alignTop="@+id/btn5"
android:layout_toRightOf="@+id/btn5"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<Button
android:id="@+id/btnHint"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btnHintLabel"
android:layout_alignTop="@+id/btn0"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignLeft="@+id/btnCheck"
android:layout_alignStart="@+id/btnCheck" />
<GridView
android:id="@+id/gridView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numColumns="9"
android:columnWidth="0dp"
android:horizontalSpacing="5dp"
android:verticalSpacing="5dp"
android:clipChildren="true"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:background="#C0C0C0"
android:padding="5dp"
android:textSize="12sp"
android:stretchMode="columnWidth"
android:gravity="clip_vertical"
/>
</RelativeLayout>
MainActivity.java
package com.example.admin1.sudoku;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.DisplayMetrics;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.GridView;
import android.widget.ArrayAdapter;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.graphics.Color;
import android.widget.Toast;
import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import android.content.res.Resources;
import android.media.MediaPlayer;
public class MainActivity extends AppCompatActivity {
// Class that holds the creation of a Sudoku Puzzle
private SudokuPuzzle clsSudoku;
//Variables used throughout the program.
private final int iMaxCells = 81;
private String[] stResult; // Holds the solution to the current puzzle
private int[] iExcluded; // Holds all the blue cells (clues given to the user at the start)
// Placed into List for fast searching
private int iElement;
private boolean blShowResult; // Indicates if the user has clicked Show Result
private boolean blGiveHint; // Indicates if the user has clicked Give Hint
private boolean blSoundOn;
// UI Elements
private View tvCell;
private GridView gridView;
private Menu menu;
private MediaPlayer mp = null;
/* Lists
lstitems holds all the items in the current board including user entries
lstExclude holds all the blue cells (clues given to the user at the start)
adapter
*/
private List<String> lstItems;
private ArrayAdapter<String> adapter ;
private List<Integer> lstExcluded;
public MainActivity() {
stResult = new String[iMaxCells];
blGiveHint = false;
blShowResult = false;
iElement = 0;
blSoundOn = false;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
// Declare used buttons
Button btn1 = (Button) findViewById(R.id.btn1);
Button btn2 = (Button) findViewById(R.id.btn2);
Button btn3 = (Button) findViewById(R.id.btn3);
Button btn4 = (Button) findViewById(R.id.btn4);
Button btn5 = (Button) findViewById(R.id.btn5);
Button btn6 = (Button) findViewById(R.id.btn6);
Button btn7 = (Button) findViewById(R.id.btn7);
Button btn8 = (Button) findViewById(R.id.btn8);
Button btn9 = (Button) findViewById(R.id.btn9);
Button btn0 = (Button) findViewById(R.id.btn0);
Button btnHint = (Button) findViewById(R.id.btnHint);
Button btnCheck = (Button) findViewById(R.id.btnCheck);
//Creates a new Game
clsSudoku = new SudokuPuzzle();
newGame();
gridView = (GridView) findViewById(R.id.gridView1);
gridView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
if (blGiveHint == true){
blGiveHint = false;
//Initialise any hinted cells back to white
clearCells();
}
if (!blShowResult){
tvCell = gridView.getChildAt(iElement);
try{
tvCell.setBackgroundColor(Color.WHITE);
iElement = position;
tvCell = gridView.getChildAt(iElement);
tvCell.setBackgroundColor(Color.RED);
}
catch(Exception e){
}
}
}
});
gridView.setAdapter(adapter = new ArrayAdapter<String>(MainActivity.this,
android.R.layout.simple_list_item_1, lstItems) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView(position, convertView, parent);
view.setPadding(dpToPx(0, parent), 0, 0, 0);
view.setMinimumHeight(0);
if (position == iElement && !blShowResult){
view.setBackgroundColor(Color.RED);
}
else if (lstExcluded.contains(position)) {
view.setBackgroundColor(Color.WHITE);
}
else{
view.setBackgroundColor(Color.CYAN);
}
return view;
}
@Override
public boolean isEnabled(int position) {
// Item position which you want to disable.
if (!lstExcluded.contains(position) ) {
return false;
}
else {
return true;
}
}
});
btn1.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "1");
adapter.notifyDataSetChanged();
}
}
});
btn2.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "2");
adapter.notifyDataSetChanged();
}
}
});
btn3.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "3");
adapter.notifyDataSetChanged();
}
}
});
btn4.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "4");
adapter.notifyDataSetChanged();
}
}
});
btn5.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "5");
adapter.notifyDataSetChanged();
}
}
});
btn6.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "6");
adapter.notifyDataSetChanged();
}
}
});
btn7.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "7");
adapter.notifyDataSetChanged();
}
}
});
btn8.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "8");
adapter.notifyDataSetChanged();
}
}
});
btn9.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "9");
adapter.notifyDataSetChanged();
}
}
});
btn0.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
if (adapter.isEnabled(iElement) && !blShowResult){
lstItems.set(iElement, "");
adapter.notifyDataSetChanged();
}
}
});
btnHint.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
blGiveHint = true;
giveHint();
}
});
btnCheck.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
checkCorrect();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
this.menu = menu;
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
switch(id){
case R.id.new_game:
createNewGame();
return true;
case R.id.show_result:
getResult();
return true;
case R.id.sound_toggle:
setSoundSettings();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
// Populate a list for fast searching later
private void populateExcludeList(int[] ipiArray){
lstExcluded.clear();
for (int iCnt = 0; iCnt < ipiArray.length; iCnt++){
lstExcluded.add(ipiArray[iCnt] - 1);
}
Collections.sort(lstExcluded);
}
// Populate a list for fast searching later
private void setBoard(String[] ipstArray){
lstItems.clear();
for (int iCnt = 0; iCnt < ipstArray.length; iCnt++){
lstItems.add(ipstArray[iCnt]);
}
}
// Create a new puzzle
private void newGame(){
String[] stNumbers = new String[iMaxCells];
blShowResult = false;
clsSudoku.swapTwoNumbers();
clsSudoku.swapTwoColumns();
clsSudoku.swapTwoBlocks();
clsSudoku.rotateNintyDegrees();
clsSudoku.clearNumbers();
stNumbers = clsSudoku.getResult("User");
stResult = clsSudoku.getResult("Result");
iExcluded = clsSudoku.getRemoved();
if (lstItems == null) {
lstItems = new ArrayList<String>(Arrays.asList(stNumbers));
}
else {
setBoard(stNumbers);
}
lstExcluded = new ArrayList<Integer>();
populateExcludeList(iExcluded);
iElement = lstExcluded.get(0);
}
private void createNewGame(){
if ( !lstItems.isEmpty() ){
lstItems.clear();
}
newGame();
adapter.notifyDataSetChanged();
}
private void getResult(){
blShowResult = true;
setBoard(stResult);
lstExcluded = new ArrayList<Integer>();
populateExcludeList(iExcluded);
adapter.notifyDataSetChanged();
}
public void giveHint(){
for (int iCnt = 0; iCnt < iMaxCells; iCnt++){
tvCell = gridView.getChildAt(iCnt);
try{
if (lstItems.get(iCnt).equalsIgnoreCase(stResult[iCnt]) == false && blGiveHint == true){
tvCell.setBackgroundColor(Color.RED);
}
else if(lstItems.get(iCnt).equalsIgnoreCase(stResult[iCnt]) && lstExcluded.contains(iCnt) ){
tvCell.setBackgroundColor(Color.WHITE);
}
}
catch(Exception e){
Toast.makeText(this, "Error: " + e.getMessage(),Toast.LENGTH_LONG).show();
}
}
}
public void checkCorrect(){
boolean blErrorFound = false;
int iCntErrors = 0;
int iCntBlanks = 0;
String stMessage = "";
for (int iCnt = 0; iCnt < iMaxCells; iCnt++){
if ( (lstItems.get(iCnt).equalsIgnoreCase("") == true)
){
iCntBlanks = iCntBlanks + 1;
blErrorFound = true;
}
else if((lstItems.get(iCnt).equalsIgnoreCase(stResult[iCnt]) == false) &&
(lstItems.get(iCnt).equalsIgnoreCase("") == false)
){
iCntErrors = iCntErrors + 1;
blErrorFound = true;
}
}
if (!blErrorFound){
stMessage = "Congratulations !!! Your solution is correct";
if (blSoundOn == true){
playSound("congratulations");
}
}
else{
stMessage = "You have " + iCntErrors + " errors and " + iCntBlanks + " squares left to do";
if (blSoundOn == true){
playSound("wrong");
}
}
Toast.makeText(getApplicationContext(), stMessage, Toast.LENGTH_LONG).show();
}
private void clearCells(){
for (int iCnt = 0; iCnt < iMaxCells; iCnt++){
tvCell = gridView.getChildAt(iCnt);
if(lstExcluded.contains(iCnt) ){
tvCell.setBackgroundColor(Color.WHITE);
}
}
}
private void setSoundSettings() {
MenuItem miMenu = menu.findItem(R.id.sound_toggle);
if (blSoundOn) {
blSoundOn = false;
miMenu.setTitle("Turn Sound On");
} else {
blSoundOn = true ;
miMenu.setTitle("Turn Sound Off");
}
}
public void playSound(String stFileName){
int iSoundId;
if (mp != null){
mp.reset();
mp.release();
}
Resources res = getApplicationContext().getResources();
iSoundId = res.getIdentifier(stFileName, "raw", getApplicationContext().getPackageName());
mp = MediaPlayer.create(getApplicationContext(), iSoundId);
mp.start();
}
public int dpToPx(int dp, View v) {
DisplayMetrics displayMetrics = v.getContext().getResources().getDisplayMetrics();
return Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT));
}
}
0 个答案:
没有答案
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