Android 生成颜色器

知是行的主意,行是知的功夫。这篇文章主要讲述Android 生成颜色器相关的知识，希望能为你提供帮助。

< 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TableLayouttableLayout.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
【Android 生成颜色器】