3 つのアクティビティ間でデータの受け渡しに成功しました。あれは ：
(データ3)アクティビティ1(データ1)→(データ1)アクティビティ2(データ2)→(データ2)アクティビティ3)
問題は次のとおりです。
- 条件を使用して、これらのアクティビティ間でデータに渡したいです。それはActivity2にあり、Activity3にデータを送信する前に確認したい
WORD = "word building" DROP = "word built" if WORD FROM EDITTEXT == WORD pass data to Activity1 AND goto Activity1 else if WORD FROM EDITTEXT == DROP pass data to Activity3 AND goto Activity3
PickCard.java という名前の Activity1 のコードを次に示します。
public class PickCard extends Activity {
String card = "Card Picked";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
displayIntentData();
findViewById(R.id.sendButton).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(PickCard.this, BuildWord.class);
intent.putExtra("key", card);
startActivity(intent);
}
});
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
setIntent(intent);//must store the new intent unless getIntent() will return the old one
displayIntentData();
}
private void displayIntentData() {
Intent intent = getIntent();
TextView tv = (TextView) findViewById(R.id.intentData);
Bundle extras = intent.getExtras();
if (extras != null) {
tv.setText("Data received: " + extras.getString("key"));
} else {
tv.setText("No extradata received");
}
}
}
Activity2 BuildWord.java のコードは次のとおりです。
public class BuildWord extends Activity {
String word = "Word Building";
String finished = "Word Built";
EditText simulate = (EditText) findViewById(R.id.dataToSend);
String getdata = simulate.getText().toString();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.buildword);
displayIntentData();
if (getdata == word) {
findViewById(R.id.sendButton1).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(BuildWord.this, MainActivity.class);
intent.putExtra("key", getdata);
startActivity(intent);
}
});
} else {
findViewById(R.id.sendButton1).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(BuildWord.this, DropCard.class);
intent.putExtra("key", finished);
startActivity(intent);
}
});
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
setIntent(intent);
displayIntentData();
}
private void displayIntentData() {
Intent intent = getIntent();
TextView tv = (TextView) findViewById(R.id.intentData1);
Bundle extras = intent.getExtras();
if (extras != null) {
tv.setText("Data received: " + extras.getString("key"));
} else {
tv.setText("No extradata received");
}
}
}
DropCard.java という名前の Activity3 のコードを次に示します。
public class DropCard extends Activity {
String drop = "Card Dropped";
String declared = "User Declared";
boolean won = false;
/*Intent intent = getIntent();
TextView tv = (TextView)findViewById(R.id.intentData2);
Bundle extras=intent.getExtras();*/
String get = "word building";//extras.getString("key");
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dropcard);
displayIntentData();
if (get == "word built") {
findViewById(R.id.sendButton2).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(DropCard.this, Declare.class);
intent.putExtra("key", declared);
startActivity(intent);
}
});
} else {
findViewById(R.id.sendButton2).setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(DropCard.this, MainActivity.class);
intent.putExtra("key", drop);
startActivity(intent);
//notice we dont call finish() here
}
});
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
setIntent(intent);//must store the new intent unless getIntent() will return the old one
displayIntentData();
}
private void displayIntentData() {
Intent intent = getIntent();
TextView tv = (TextView) findViewById(R.id.intentData2);
Bundle extras = intent.getExtras();
if (extras != null) {
tv.setText("Data received: " + extras.getString("key"));
} else {
tv.setText("No extradata received");
}
}
}