PadKe博客

1. Activity1中intent.putExtra传递dataButton btn1 = findViewById(R.id.btn1); btn1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //传递data S...

1. Activity1中设定startActivityForResult方法Button btn1 = findViewById(R.id.btn1); btn1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent...

test

<activity android:name=".MainActivity" android:launchMode="singleTop">