首先在Activity之間進行跳轉要在清單文件中進行註冊例題是從MainActivity傳值跳轉到ResultActivity
具體例題在360雲盤中http://yunpan.cn/cZNcQw3cf3Spb 訪問密碼 9d90
<activity android:name= "com.example.activityTestRP.ResultActivity" >
</ activity>
標註：< intent-filter>
< action android:name ="android.intent.action.MAIN" />
< category android:name ="android.intent.category.LAUNCHER" />
</ intent-filter>
這兩行是表示是否要創建快捷圖標
android:label = "@string/app_name"表示這個界面的標籤
android:icon = "@drawable/ic_launcher"表示這個界面的圖片
如果沒有定義這兩個的話，直接使用的是默認的標籤和圖片
xml文件
< LinearLayout xmlns:android ="http://schemas.android.com/apk/res/android"
xmlns:tools= "http://schemas.android.com/tools"
android:layout_width= "match_parent"
android:layout_height= "match_parent"
android:orientation= "vertical"
>
<TextView
android:layout_width ="wrap_content"
android:layout_height ="wrap_content"
android:layout_gravity ="center_horizontal"
android:textSize ="28sp"
android:textColor ="#ff0000"
android:text ="人品測試" />
<EditText
android:id ="@+id/et_name"
android:layout_width ="match_parent"
android:layout_height ="wrap_content"
android:hint ="請輸入姓名：" />
<Button
android:id ="@+id/test"
android:layout_width ="match_parent"
android:layout_height ="wrap_content"
android:text ="開始測試" />
</ LinearLayout>
Java文件
public class MainActivity extends Activity implements OnClickListener
{
private EditText et_name ;
@Override
protected void onCreate(Bundle
savedInstanceState) {
super .onCreate(savedInstanceState);
setContentView(R.layout. activity_main );
Button test = (Button) findViewById(R.id. test );
et_name=
(EditText) findViewById(R.id. et_name );
test.setOnClickListener( this );
}
@Override
public void onClick(View
v) {
String name= et_name.getText().toString().trim();
if (TextUtils.isEmpty(name)){
//跳出一個警告
new AlertDialog.Builder( this).setMessage( "名字不能爲空" ).show();
}
else {
Intent intent = new Intent(this ,
ResultActivity. class);
//將值傳到intent中
intent.putExtra( "name" ,name);
startActivity(intent);
}
}
}
第二個xml
<? xml version= "1.0" encoding = "utf-8"?>
< LinearLayout xmlns:android ="http://schemas.android.com/apk/res/android"
android:layout_width= "match_parent"
android:layout_height= "match_parent"
android:orientation= "vertical" >
<TextView
android:layout_width= "wrap_content"
android:layout_height= "wrap_content"
android:textSize= "28sp"
android:textColor= "#ff0000"
android:text= "你的人品值"
android:layout_gravity= "center_horizontal" />
<TextView
android:id= "@+id/tv_result"
android:layout_width= "match_parent"
android:layout_height= "wrap_content"
/>
<!--進度條-->
<ProgressBar
android:id ="@+id/pb_testRP"
style= "?android:attr/progressBarStyleHorizontal"
android:layout_width ="fill_parent"
android:layout_height ="wrap_content"
android:max ="100" />
</ LinearLayout>
Java文件
public class ResultActivity extends Activity
{
@Override
protected void onCreate(Bundle
savedInstanceState) {
// TODO Auto-generated
method stub
super .onCreate(savedInstanceState);
setContentView(R.layout. result );
TextView result =(TextView) findViewById(R.id. tv_result );
Intent intent = getIntent();
//獲得前面傳過來的name
String name= intent. getStringExtra( "name");
Random random = new Random();
int rp
= random.nextInt(101);
result.setText(name+ "您的人品值爲：" +rp);
ProgressBar pb = (ProgressBar) findViewById(R.id. pb_testRP );
//設置進度值
pb.setProgress(rp);
}
}