![]() |
選擇頁 |
首先定義兩個RadioButton和一個Button
定義RadioButton的狀態
boolean btn1_state = false;
boolean btn2_state = false;
這裡注意需要加final
Button sendBtn = (Button)findViewById(R.id.send);
final RadioButton btn1 = (RadioButton)findViewById(R.id.rbtn1);
final RadioButton btn2 = (RadioButton)findViewById(R.id.rbtn2);
RadioGroup rg =(RadioGroup)findViewById(R.id.radiogroup1);
監察選擇了那個RadioButton
rg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
// TODO Auto-generated method stub
if(checkedId == btn1.getId()){
btn1_state = true;
btn2_state = false;
}else if(checkedId == btn2.getId()){
btn1_state = false;
btn2_state = true;
}
}
});
最後就是發送按鈕
sendBtn.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent();
if(btn1_state == true){
//傳送RadioButton1的Text到另一個Activity
intent.putExtra("abc",btn1.getText().toString());
//這裡的abc是RadioButton1中Text的名字,寫成123或zxcv都可以,
}else if(btn2_state == true){
intent.putExtra("abc", btn2.getText().toString());
//RadioButton2中的Text需與RadioButton1一樣
}
//MainActivity是此Activity,而page_two則是另一個Activity
intent.setClass(MainActivity.this, page_two.class);
startActivity(intent);
}
});
另一個Activity中
@Overrideprotected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.page_two);
this.setContentView(R.layout.page_two);
Bundle bundle = this.getIntent().getExtras();
//取得一個名字為abc的String
String str = bundle.getString("abc");
TextView tv1 = (TextView)findViewById(R.id.tv1);
tv1.setText(str);
}
UI佈局
MainActivity:
<RadioGroup
android:id="@+id/radiogroup1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_x="3px"
>
<RadioButton
android:id="@+id/rbtn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="78dp"
android:text="abc"
android:textColor="#ffffff"
/>
<RadioButton
android:id="@+id/rbtn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="28dp"
android:text="123"
android:textColor="#ffffff"
/>
</RadioGroup>
<Button
android:id="@+id/send"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="send"
android:textColor="#ffffff"
/>
page_two:
<TextView
android:id="@+id/tv1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="100px"
android:textColor="#ffffff"
/>
最後就是AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.intentdemo2"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="page_two"></activity>
</application>
</manifest>
運行畫面:
No comments:
Post a Comment