Android中，Intent数据传递之主屏幕传递到另一个屏幕。

女爷i 2022-05-14 06:43 164阅读 0赞

主屏幕的Intent代码：

public class MainActivity extends AppCompatActivity {
        private Button button;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            button=findViewById(R.id.button);
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent=new Intent(MainActivity.this,sed.class);
                    intent.putExtra("test","hello");
                    startActivity(intent);
                }
            });
        }
    }

副屏幕代码：

public class sed extends Activity{
        private TextView textView;
        @Override
        protected void onCreate(@Nullable Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.sed);
            textView=findViewById(R.id.textView);
            Intent intent=getIntent();
            String data=intent.getStringExtra("test");
            textView.setText(data);
    
        }
    }