Question

android studio 不用xml直接使用java代码进行布局.好的可以加分

实现如图所示，不用xml布局，直接java代码里写提示是用LayoutParams麻烦写下代码，可以加到满分。

Answer 1

// 使用代码布局
		// root layout
		LinearLayout root = new LinearLayout(this);
		root.setOrientation(LinearLayout.VERTICAL);
		// top layout
		LinearLayout topLayout = new LinearLayout(this);
		LinearLayout.LayoutParams topParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0);
		topParams.weight = 1;
		topLayout.setLayoutParams(topParams);
		// left child
		View leftView = new View(this);
		leftView.setBackgroundColor(Color.RED);
		LinearLayout.LayoutParams leftParams = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT);
		leftParams.weight = 1;
		leftView.setLayoutParams(leftParams);
		topLayout.addView(leftView);
		// right Layout

		LinearLayout rightLayout = new LinearLayout(this);
		rightLayout.setOrientation(LinearLayout.VERTICAL);
		LinearLayout.LayoutParams rightParams = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT);
		rightParams.weight = 1;
		rightLayout.setLayoutParams(rightParams);

		// right top child
		View rightTopView = new View(this);
		rightTopView.setBackgroundColor(Color.YELLOW);
		LinearLayout.LayoutParams rightTopParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0);
		rightTopParams.weight = 1;
		rightTopView.setLayoutParams(rightTopParams);
		// add right top view
		rightLayout.addView(rightTopView);
		// right bottom child
		View rightBottomView = new View(this);
		rightBottomView.setBackgroundColor(Color.BLACK);
		LinearLayout.LayoutParams rightBottomParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0);
		rightBottomParams.weight = 1;
		rightBottomView.setLayoutParams(rightBottomParams);
		// add right bottom view
		rightLayout.addView(rightBottomView);
		// add right layout
		topLayout.addView(rightLayout);
		// add top layout
		root.addView(topLayout);
		// bottom layout
		LinearLayout bottomLayout = new LinearLayout(this);
		bottomLayout.setBackgroundColor(Color.BLUE);
		LinearLayout.LayoutParams bottomParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0);
		bottomParams.weight = 1;
		bottomLayout.setLayoutParams(bottomParams);
		root.addView(bottomLayout);

		// setContentView(R.layout.activity_main);
		setContentView(root);

Answer 2

调试麻烦，，，，，