Android Studio开发基础之对点击事件和初始化控件进行封装

public  class MainActivity extends Activity implements View.OnClickListener {
    private TextView Txt;
    private Button btn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        InitView();
    }

    private void InitView(){
        Txt= (TextView) findViewById(R.id.textView);
        btn= (Button) findViewById(R.id.button1);
        btn.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch(v.getId()){
            case R.id.button1:
                Txt.setText("Hello!");
                break;
        }
    }
}

Android Studio开发基础之对点击事件和初始化控件进行封装

原文：http://blog.csdn.net/lucky51222/article/details/45772373