如何编写代码,以便在按第一个按钮(btn1)然后按第二个按钮(btn2)时,第二个活动(SecondActivity)是否开始?
答案 0 :(得分:0)
试试这个
public class MainActivity extends AppCompatActivity {
Boolean launch = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn1 = (Button) findViewById(R.id.button);
Button btn2 = (Button) findViewById(R.id.button2);
btn1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
launch = true;
}
});
btn2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (launch == true)
{
Intent i = new Intent(MainActivity.this,Main2Activity.class);
startActivity(i);
}
else
{
//do your stuff
}
}
});
}
}