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public class SecondActivity extends AppCompatActivity {
private static final String TAG = "SecondActivity";
//跳转到当前页面
public static void start(Context context,String str){
Intent intent = new Intent(context,SecondActivity.class);
intent.putExtra(TAG,str);
context.startActivity(intent);
}
//...
}
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void clickFirst(View view){
//跳转到第二个页面
SecondActivity.start(MainActivity.this,"something");
finish();
}
//...
}