前端XML
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:background="#CCCCCC" tools:context="lesson10.computer.app2.MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="这是主界面" android:layout_margin="8dp" android:textSize="18sp" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="参数1" android:textSize="18sp" /> <EditText android:id="@+id/et_param1" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@null" android:hint="请输入参数1！" android:textSize="18sp" android:textColorHint="@android:color/holo_red_dark" android:textColor="@android:color/holo_red_dark" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="参数2" android:textSize="18sp" /> <EditText android:id="@+id/et_param2" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@null" android:hint="请输入参数2！" android:textSize="18sp" android:textColorHint="@android:color/holo_red_dark" android:textColor="@android:color/holo_red_dark" /> </LinearLayout> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:text="点我跳转" android:onClick="jumpMethod" /> </LinearLayout>后台代码Main
/** * 跳转按钮对应的事件处理函数 * @param v */ public void jumpMethod(View v){ Intent intent = new Intent(this,JumpActivity.class); //准备参数 intent.putExtra("param1",et_param1.getText().toString()); intent.putExtra("param2", et_param2.getText().toString()); startActivity(intent); }跳转后的画面Jump 接受主界面给的数据
public class JumpActivity extends AppCompatActivity { private TextView textView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_jump); textView = (TextView) findViewById(R.id.tv); Intent intent = this.getIntent(); String strParam1 = intent.getStringExtra("param1"); String strParam2 = intent.getStringExtra("param2"); textView.setText(strParam1+strParam2); }
