android activity 相互传值

1，传一个值的情况：

Main.activity

Pass value：

Intent intent = new Intent(MainActivity.this, SecondActivity.class);

intent.putExtra("Main", "123");

startActivityForResult(intent, 0);

Get valuefrom other activity

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

if (resultCode == RESULT_OK)

{

Log.d("debug", "result=" + data.getStringExtra("second"));

}

super.onActivityResult(requestCode, resultCode, data);

}

Test.activity

Get value：

Intent intent = getIntent();

final String num = intent.getStringExtra("Main");

Then pass value to main activity

Intent intent = new Intent();

intent.putExtra("second", "This is Second Activity's value!");

setResult(RESULT_OK, intent);

finish();

如果传多个值的情况使用 Bundle

Pass value：

Home Activity：

Bundle bundle = new Bundle();

*字符、字符串、布尔、字节数组、浮点数等等，都可以传*/
bundle.putString("Name", "feng88724");
bundle.putBoolean("Ismale", true);

/*把bundle对象assign给Intent*/
intent.putExtras(bundle);

Get value：

Away Activity：

/*获取Intent中的Bundle对象*/
Bundle bundle = this.getIntent().getExtras();

*获取Bundle中的数据，注意类型和key*/
String name = bundle.getString("Name");
boolean ismale = bundle.getBoolean("Ismale");

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