package?com.study.beta;

import?android.support.v7.app.AppCompatActivity;
import?android.os.Bundle;
import?android.util.Log;
import?android.view.MotionEvent;
import?android.view.View;
import?android.widget.Button;
import?android.widget.ScrollView;
import?android.widget.TextView;

public?class?MainActivity?extends?AppCompatActivity?implements?View.OnClickListener{
private?TextView?tv1;
????private?Button?bt1;
????private?Button?bt2;
????private?ScrollView?scrollView;
????@Override
????protected?void?onCreate(Bundle?savedInstanceState)?{
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.activity_main);
????????scrollView=?(ScrollView)?findViewById(R.id.scroll);
????????tv1=?(TextView)?findViewById(R.id.content);
????????tv1.setText(getResources().getString(R.string.beta));
????????bt1=?(Button)?findViewById(R.id.bt1);
????????bt2=?(Button)?findViewById(R.id.bt2);
????????scrollView.setOnTouchListener(new?View.OnTouchListener()?{
????????????@Override
????????????public?boolean?onTouch(View?view,?MotionEvent?motionEvent)?{
????????????????switch?(motionEvent.getAction()){
????????????????????case??MotionEvent.ACTION_MOVE:{
????????????????????????if?(scrollView.getScrollY()<+0){
????????????????????????????Log.i("高度","微電機(jī)");
????????????????????????}
????????????????????????if?(scrollView.getChildAt(0).getMeasuredHeight()==scrollView.getHeight()+scrollView.getScrollY()){
????????????????????????????Log.i("高度","華東到底部");
????????????????????????????tv1.append(getResources().getString(R.string.beta));
????????????????????????}
????????????????????}
????????????????}
????????????????return?false;
????????????}
????????});
????}

????@Override
????public?void?onClick(View?view)?{
????????switch?(view.getId()){
????????????case?R.id.bt1:scrollView.scrollBy(0,-2);
????????}
????}
}