Android 中使用代码动态网格布局，程序员深度学习
android:id="@+id/text_title" style="@style/Text.Title" android:layout_width=“match_parent” android:layout_height=“match_parent” android:gravity=“center” android:text=“业务功能介绍” /> android:id="@+id/layout_more" android:layout_width=“match_parent” android:layout_height=“match_parent” android:orientation=“vertical” android:padding=“4dp” /> 三、子条目xml布局文件 ============ android:layout_width=“match_parent” android:layout_height=“84dp” android:layout_weight=“1.0” android:clickable=“true” > android:id="@+id/image_icon" android:layout_width=“wrap_content” android:layout_height=“wrap_content” android:layout_gravity=“center_horizontal” android:layout_marginTop=“16dp” android:duplicateParentState=“true” android:src="@drawable/ic_department_01_normal" /> android:id="@+id/text_title" android:layout_width=“wrap_content” android:layout_height=“wrap_content” android:layout_gravity=“center_horizontal|bottom” android:background="@null" android:layout_marginBottom=“6dp” android:gravity=“center” android:duplicateParentState=“true” android:textColor="@drawable/text_service_color" android:textSize=“14dp” /> 如图： 四、java代码动态布局 ============ /** @author gao_chun */ public class MainActivity extends Activity implements OnClickListener{ private ViewGroup mMoreLayout; //父布局容器(动态加载的资源图片和文字等布局都将添加在其里面) /* (non-Javadoc) */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); initUI(); //保证启动方法的唯一性 } private void initUI() { setContentView(R.layout.activity_main); //找到该容器（这里的控件为LinearLayout，转换为ViewGroup是因为ViewGroup是容器的基类） mMoreLayout = (ViewGroup) findViewById(R.id.layout_more); //由于文字也是动态生成，使用android中array文件定义资源文件，并取出 final String[] categories = getRe final int size = categories.length; //String[]的长度 final int rowCount = size / 3; //需要布局的行数(每行三个) /** 动态添加布局方法封装 参数 1.父容器 2.资源文字数组 3.从第几个开始 4.行数 */ fillViews(mMoreLayout, categories, 0, rowCount); } private void fillViews(ViewGroup layout, String[] categories, int start, int end) { // 表格第一条线 View.inflate(this, R.layout.layout_line_horizonal, layout); for (int i = start; i < end; i++) { //找到索引，便于根据索引添加图片文件和文字 final int firstIndex = i * 3; final int secondIndex = i * 3 + 1; final int thirdIndex = i * 3 + 2; final String firstCategory = categories[firstIndex]; final String secondCategory = categories[secondIndex]; final String thirdCategory = categories[thirdIndex]; //这里控制的是加载本地图片，通过应用包命找到 有规则命名的图片资源文件 //—>因为这里有两种效果，一是默认的图片，二是按下触发后的图片和文字 final int firstDrawableNormal = getResources().getIdentifier(String.format(“ic_department_%02d_normal”, firstIndex + 1),“drawable”,getApplicationContext().getPackageName()); final int secondDrawableNormal = getResources().getIdentifier(String.format(“ic_department_%02d_normal”, secondIndex + 1),“drawable”,getApplicationContext().getPackageName()); final int thirdDrawableNormal = getResources().getIdentifier(String.format(“ic_department_%02d_normal”, thirdIndex + 1),“drawable”,getApplicationContext().getPackageName()); final int firstDrawablePressed = getResources().getIdentifier(String.format(“ic_department_%02d_pressed”, firstIndex + 1),“drawable”,getApplicationContext().getPackageName()); final int secondDrawablePressed = getResources().getIdentifier(String.format(“ic_department_%02d_pressed”, secondIndex + 1),“drawable”,getApplicationContext().getPackageName()); final int thirdDrawablePressed = getResources().getIdentifier(String.format(“ic_department_%02d_pressed”, thirdIndex + 1),“drawable”,getApplicationContext().getPackageName()); //这里是将上面找到的 默认图片 和 按下时的图片 放入到 StateListDrawable缓存中 final StateListDrawable firstDrawable = new StateListDrawable(); firstDrawable.addState(new int[]{android.R.attr.state_pressed}, getResources().getDrawable(firstDrawablePressed)); firstDrawable.addState(new int[]{}, getResources().getDrawable(firstDrawableNormal)); final StateListDrawable secondDrawable = new StateListDrawable(); secondDrawable.addState(new int[]{android.R.attr.state_pressed}, getResources().getDrawable(secondDrawablePressed)); secondDrawable.addState(new int[]{}, getResources().getDrawable(secondDrawableNormal)); final StateListDrawable thirdDrawable = new StateListDrawable(); thirdDrawable.addState(new int[]{android.R.attr.state_pressed}, getResources().getDrawable(thirdDrawablePressed)); thirdDrawable.addState(new int[]{}, getResources().getDrawable(thirdDrawableNormal)); // 父布局 final LinearLayout linearLayout = new LinearLayout(this); // 第一个子布局 View.inflate(this, R.layout.layout_line_vertical, linearLayout); View.inflate(this, R.layout.layout_department, linearLayout); View.inflate(this, R.layout.layout_line_vertical, linearLayout); DrawableNormal)); // 父布局 final LinearLayout linearLayout = new LinearLayout(this); // 第一个子布局 View.inflate(this, R.layout.layout_line_vertical, linearLayout); View.inflate(this, R.layout.layout_department, linearLayout); View.inflate(this, R.layout.layout_line_vertical, linearLayout);
sources().getStringArray(R.array.categories);