Activity之間回撥傳值
阿新 • • 發佈:2018-12-04
主頁面主要程式碼片段:
myButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Intent intent=new Intent(); intent.setClass(MainActivity.this,TestTwo.class); intent.putExtra("value1","希望之光 竇唯"); startActivityForResult(intent, 1);// 請求碼設定為:1 } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(data!=null) if(requestCode==1&&resultCode==2){ String backValue=data.getStringExtra("backValue"); myButton.setText(backValue); } }
目標頁面:
back.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { intent=getIntent(); String value=intent.getStringExtra("value1"); back.setText(value); intent.putExtra("backValue","Don't Break My Heart 王菲"); setResult(2,intent);//返回碼設為:2 finish(); } });