Android 生成颜色器

时间：2024-11-23 15:36:26
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="vertical" >

        <LinearLayout

            android:layout_weight="1"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:orientation="horizontal" >

            <TextView

                android:layout_width="wrap_content"

                android:gravity="center_vertical"

                android:layout_height="match_parent"

                android:layout_marginLeft="10dp"

                android:textSize="20sp"

                android:text="请输入行:"

                />

            <EditText

                android:id="@+id/editText1"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:ems="10"

                android:hint="请输入数字！"

                android:numeric="decimal" />

        </LinearLayout>

        <LinearLayout

            android:layout_weight="1"

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:orientation="horizontal" >

            <TextView

                android:layout_width="wrap_content"

                android:gravity="center_vertical"

                android:layout_height="match_parent"

                android:layout_marginLeft="10dp"

                android:textSize="20sp"

                android:text="请输入列:"

                />

            <EditText

                android:id="@+id/editText2"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:ems="10"

                android:hint="请输入数字！"

                android:numeric="decimal">

                <requestFocus />

            </EditText>

        </LinearLayout>

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="wrap_content"

            android:orientation="horizontal"

            >

            <Button

                android:layout_width="match_parent"

                android:layout_height="wrap_content"

                android:id="@+id/button1"

                android:text="一键自动生成表格"

                />

        </LinearLayout>

    </LinearLayout>

    <TableLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:id="@+id/table1">

    </TableLayout>

</LinearLayout>
import android.app.Activity;

import android.graphics.Color;

import android.os.Bundle;

import android.util.Log;

import android.view.Gravity;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TableLayout;

import android.widget.TableRow;

import android.widget.TextView;

import android.widget.Toast;

public class MainActivity extends Activity {

    private final int WC = ViewGroup.LayoutParams.WRAP_CONTENT;

    private final int MP = ViewGroup.LayoutParams.MATCH_PARENT;

    private EditText row;

    private EditText column;

    private Button bt1;

    private TableLayout tableLayout;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //获取控件Button

        bt1=(Button) findViewById(R.id.button1);

        //获取文本输入框控件

        row=(EditText) findViewById(R.id.editText1);

        column=(EditText) findViewById(R.id.editText2);

        //给button按钮绑定单击事件

        bt1.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                //Color[] colorBlocks= new Color[4096];

                //int row_int=Integer.parseInt(row.getText().toString());

                //int col_int=Integer.parseInt(column.getText().toString());

                 //获取控件tableLayout

                tableLayout = (TableLayout)findViewById(R.id.table1);

                //清除表格所有行

                tableLayout.removeAllViews();

                //全部列自动填充空白处

                tableLayout.setStretchAllColumns(true);

                //生成X行，Y列的表格     

                int theLength = 64;

                for(int i=0;i<theLength;i++)

                {

                    TableRow tableRow=new TableRow(MainActivity.this);

                    //生成颜色

                    for(int j=0;j<theLength;j++)

                    {

                        int result = i*theLength +(j+1)-1;//0~4095

                        int red = result / 256 ;

                        int green = (result-red*256) / 16;

                        int blue = result-red*256 - green*16;

                        //tv用于显示

                        TextView tv=new TextView(MainActivity.this);

                        //Button bt=new Button(MainActivity.this);

                        tv.setText("-");

                        tv.setBackgroundColor( Color.rgb(red*16, green*16,  blue*16) );

                        //Color.rgb(red*16-1, green*16-1,  blue*16-1)

                        //tv.setBackgroundResource(35434);

                        tableRow.addView(tv);

                    }

                    //新建的TableRow添加到TableLayout

                    tableLayout.addView(tableRow, new TableLayout.LayoutParams(MP, WC,1));

                }

            }

        });

    }  

}

效果呢，博客就不展示了。可以自己试试。黄沙百战穿金甲，不破楼兰终不还

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