android布局中动态添加控件

【核心代码】

public class MainActivity extends Activity implements OnClickListener {

	private LinearLayout layout;
	private TextView tv;
	private TextView allTv;

	private String[] str = { "全程班", "VIP班", "协议通关班", "高端退费班" };
	private TextView[] textView=new TextView[str.length];

	private String clickName = "";

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		layout = (LinearLayout) findViewById(R.id.layout);
		allTv = (TextView) findViewById(R.id.allTv);

		for (int i = 0; i < str.length; i  ) {
			tv = new TextView(this);
			tv.setPadding(5, 10, 10, 5);
			tv.setText(str[i]);
			tv.setId(i);
			layout.addView(tv);
			textView[i]=tv;
			tv.setOnClickListener(this);

		}

		allTv.setOnClickListener(this);

	}

	public void showToast(String text) {
		Toast.makeText(this, text, Toast.LENGTH_SHORT).show();
	}

	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		default:

			for (int i = 0; i < str.length; i  ) {
				if (v.getId() == i) {
					clickName = str[i];
					changeColor();
					textView[i].setTextColor(Color.RED);
					
				} else if (v.getId() == R.id.allTv) {
					clickName = allTv.getText().toString();
					changeColor();
					allTv.setTextColor(Color.RED);
				}
			}

			showToast("点击了"   clickName);

			break;
		}
	}
	
	public void changeColor(){
		for(int i=0;i<str.length;i  ){
			textView[i].setTextColor(Color.BLACK);
			allTv.setTextColor(Color.BLACK);
		}
	}

}