使用Bundle在Activity间传递数据

源Activity

public class SourceActivty extends Activity {
private Intent intent=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
intent=new Intent();
Bundle myBundelForName=new Bundle();
myBundelForName.putString("Key_Name","1111");
myBundelForName.putString("Key_Age","22");
intent.putExtras(myBundelForName);
TextView text=(TextView)findViewById(R.id.test);
text.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
intent.setClass(SourceActivty.this, TargetActivty.class);
startActivity(intent);


}
});
}

}

目标activty

public class TargetActivty extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.intest);
TextView text=(TextView)findViewById(R.id.tt);
//从Intent 中获取数据
Bundle myBundelForGetName=this.getIntent().getExtras();
String name=myBundelForGetName.getString("Key_Name");
text.setText("欢迎您进入："+name);
}
}

从源请求Activity 中通过一个Intent 把一个服务请求传到目标Activity

源activty

private Intent openWelcomeActivityIntent = null;
TextView text=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
openWelcomeActivityIntent = new Intent();
// 设定开启的下一个Activity
text=(TextView)findViewById(R.id.test);
text.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
openWelcomeActivityIntent.setClass(SourceActivty1.this,
TargetActivty1.class);
startActivityForResult(openWelcomeActivityIntent, 1);

}
});

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1) {
if (resultCode == RESULT_CANCELED) {
setTitle("Cancel****");
} else if (resultCode == RESULT_OK) {
Bundle showBundle = data.getExtras();// 从返回的Intent中获得Bundle
text.setText("the name get from the second layout:\n" + showBundle.getString("myName"));
}
}
}
}



☻ 第一个参数是你开启请求Intent时的对应请求码，可以自己定义。
☻ 第二个参数是目标Activity返回的验证结果码
☻ 第三个参数是目标Activity返回的Intent

目标activty


public class TargetActivty1 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.intest);
Intent backIntent=new Intent();
Bundle stringBundle=new Bundle();
stringBundle.putString("myName", "lishiyao");
backIntent.putExtras(stringBundle);
setResult(RESULT_OK, backIntent);//返回Activity结果码
finish();
}

}