Activity之间的交互-创新互联
在第一个activity中使用
创新互联公司是一家专业提供岚山企业网站建设,专注与网站设计制作、成都网站制作、H5技术、小程序制作等业务。10年已为岚山众多企业、政府机构等服务。创新互联专业网络公司优惠进行中。startActivityForResult(intent, state_tag);
启动第二个activity,在第二个activity中调用 setResult(,)
在第一个activity中重载onActivityResult()
第一个Activity:
public class MainActivity extends Activity { private TextView tv = null; private int state_tag = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tv = (TextView)findViewById(R.id.textView); Button button = (Button)findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub Intent i = new Intent(MainActivity.this, SecondActivity.class); Bundle bundle = new Bundle(); bundle.putString("content", tv.getText().toString()); i.putExtra("bundle", bundle); startActivityForResult(i, state_tag); } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); if(requestCode == state_tag) { if(resultCode == RESULT_OK) { Log.i("MainActivity", data.getBundleExtra("bundle2").getString("newContend")); tv.setText(data.getBundleExtra("bundle2").getString("newContend")); } else { Log.i("MainActivity", "in else:"); return; } } } }
第二个activity:
package com.example.intenttest; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class SecondActivity extends Activity { private EditText editText = null; private Button okButton = null; private Button cancelButton = null; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.activity_second); editText = (EditText)findViewById(R.id.editText); okButton = (Button)findViewById(R.id.okButton); cancelButton = (Button)findViewById(R.id.cancelButton); Intent i = getIntent(); editText.setText(i.getBundleExtra("bundle").getString("content")); okButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub Intent i = new Intent(SecondActivity.this, MainActivity.class); Bundle bundle = new Bundle(); bundle.putString("newContent", String.valueOf(editText.getText())); i.putExtra("bundle2", bundle); setResult(RESULT_OK, i); finish(); } }); cancelButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub setResult(RESULT_CANCELED); finish(); } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); } }
另外有需要云服务器可以了解下创新互联scvps.cn,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。
本文题目:Activity之间的交互-创新互联
链接地址:http://myzitong.com/article/ccgdco.html