[英]Call another Activity in Main Activity
抱歉，我的问题对你们所有人来说可能非常简单。 但是我是新来的，需要解决方案。 如果您可以帮助我解决问题。
我有一个报价应用程序，该应用程序具有以下功能：从主要活动中检查服务器中的新报价，在装载主要活动时与服务器进行检查，以查看是否有新报价可用，如果可用，则打开一个弹出窗口进行设置活动以下载新报价，如果用户按下设置按钮，则将用户带入设置活动。 我需要一些更改。 我想从主要活动中自动下载新报价，而无需进行设置活动。 这两个活动如下
谢谢
public class MainActivity extends Activity {
SharedPreferences mSharedPreferences;
//String qotdId;
private AdView mAdView;
private InterstitialAd mInterstitial;
public static boolean active;
DAO db;
String siteUrl, updatesUrl;
int lastAuthor, lastQuote;
private ConnectionDetector cd;
@Override
protected void onStart() {
mInterstitial = new InterstitialAd(this);
mInterstitial.setAdUnitId(getResources().getString(R.string.admob_publisher_interstitial_id));
mInterstitial.loadAd(new AdRequest.Builder().build());
super.onStart();
active = true;
}
@Override
protected void onStop() {
super.onStop();
active = false;
}
// ==============================================================================
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
mAdView = (AdView) findViewById(R.id.adView);
mAdView.loadAd(new AdRequest.Builder().build());
/* Boolean isFirstRun = getSharedPreferences("PREFERENCE", MODE_PRIVATE)
.getBoolean("isFirstRun", true);
if (isFirstRun) {
//show start activity
startActivity(new Intent(MainActivity.this, SettingsActivity.class));
Toast.makeText(MainActivity.this, "Please Push Download Button And Save Status in Your Mobile For Just One Time", Toast.LENGTH_LONG)
.show();
}
getSharedPreferences("PREFERENCE", MODE_PRIVATE).edit()
.putBoolean("isFirstRun", false).commit();
*/
// Parse push notification
Parse.initialize(this, getString(R.string.parse_application_id), getString(R.string.parse_client_key));
ParseAnalytics.trackAppOpened(getIntent());
PushService.setDefaultPushCallback(this, MainActivity.class);
ParseInstallation.getCurrentInstallation().saveInBackground();
db = new DAO(this);
db.open();
cd = new ConnectionDetector(MainActivity.this);
siteUrl = getResources().getString(R.string.siteUrl);
updatesUrl = siteUrl + "site/get_updates/" + String.valueOf(lastAuthor) + "/" + String.valueOf(lastQuote);
if (cd.isConnectingToInternet()) {
// Internet Connection is not present
Intent checkUpdates = new Intent(MainActivity.this, CheckUpdatesService.class);
startService(checkUpdates);
}
// generateKeyHash();
final ImageButton quotes = (ImageButton) findViewById(R.id.quotes);
quotes.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,
QuotesActivity.class);
intent.putExtra("quotesType", 1);
intent.putExtra("itemSelected", 0);
startActivity(intent);
}
});
final ImageButton authors = (ImageButton) findViewById(R.id.authors);
authors.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,
AuthorsActivity.class);
startActivity(intent);
}
});
final ImageButton favorites = (ImageButton) findViewById(R.id.favorites);
favorites.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,
QuotesActivity.class);
intent.putExtra("quotesType", 2);
startActivity(intent);
}
});
final ImageButton settings = (ImageButton) findViewById(R.id.settings);
settings.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this,
SettingsActivity.class);
startActivity(intent);
}
});
}
}
还有我的其他活动
public class SettingsActivity extends PreferenceActivity {
static final int TIME_DIALOG_ID = 999;
private AdView mAdView;
private InterstitialAd mInterstitial;
private static final String MY_PREFERENCES = "my_preferences";
@Override
protected void onStart() {
mInterstitial = new InterstitialAd(this);
mInterstitial.setAdUnitId(getResources().getString(R.string.admob_publisher_interstitial_id));
mInterstitial.loadAd(new AdRequest.Builder().build());
super.onStart();
}
@Override
protected void onStop() {
//unregisterReceiver(receiver);
super.onStop();
}
// ==========================================================================================================//
DAO db;
// Progress dialog
ProgressDialog pDialog;
PreferenceScreen preferenceScreen;
private static SharedPreferences mSharedPreferences;
UpdateClass update;
// Internet Connection detector
private ConnectionDetector cd;
// Alert Dialog Manager
AlertDialogManager alert = new AlertDialogManager();
Preference more, rate, about, check, share,status,background, progress = null;
PreferenceCategory socialsCategory;
private MyDownloadReceiver receiver;
// ==============================================================================
//////////////////// First Load /////////////////
public static boolean isFirst(Context context){
final SharedPreferences reader = context.getSharedPreferences(MY_PREFERENCES, Context.MODE_PRIVATE);
final boolean first = reader.getBoolean("is_first", true);
if(first){
final SharedPreferences.Editor editor = reader.edit();
editor.putBoolean("is_first", false);
editor.commit();
}
return first;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.config);
mAdView = (AdView) findViewById(R.id.adView);
mAdView.loadAd(new AdRequest.Builder().build());
//TWITTER_CONSUMER_KEY = getResources().getString(
// R.string.TWITTER_CONSUMER_KEY);
//TWITTER_CONSUMER_SECRET = getResources().getString(
// R.string.TWITTER_CONSUMER_SECRET);
//TWITTER_CALLBACK_URL = "oauth://"
// + getApplicationContext().getPackageName()
// + ".SettingsActivity";
//uiHelper = new UiLifecycleHelper(this, callback);
//uiHelper.onCreate(savedInstanceState);
db = new DAO(this);
db.open();
addPreferencesFromResource(R.layout.settings);
// Shared Preferences
mSharedPreferences = getApplicationContext().getSharedPreferences(
"MyPref", 0);
check = (Preference) findPreference("check");
about = (Preference) findPreference("about");
more = (Preference) findPreference("more");
rate = (Preference) findPreference("rate");
status = (Preference) findPreference("status");
share = (Preference) findPreference("share");
background = (Preference) findPreference("background");
socialsCategory = (PreferenceCategory) findPreference("socials");
preferenceScreen = getPreferenceScreen();
check.setOnPreferenceClickListener(new OnPreferenceClickListener() {
public boolean onPreferenceClick(Preference preference) {
update = new UpdateClass(SettingsActivity.this);
update.handleUpdates();
//if (mInterstitial.isLoaded()) {
// mInterstitial.show();
//}
return false;
}
});
// ==============================================================================
about.setOnPreferenceClickListener(new OnPreferenceClickListener() {
public boolean onPreferenceClick(Preference preference) {
Intent intent = new Intent(SettingsActivity.this,
AboutActivity.class);
startActivity(intent);
if (mInterstitial.isLoaded()) {
mInterstitial.show();
}
return false;
}
});
// ==============================================================================
background
.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
public boolean onPreferenceChange(Preference preference,
Object newValue) {
if (newValue.equals(true)) {
db.updateSetting("background", "1");
} else {
db.updateSetting("background", "0");
}
return true;
}
});
// ==============================================================================
// ==============================================================================
rate.setOnPreferenceClickListener(new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
final String appPackageName = "com.karopass.hindishayari2016";
try {startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id="+ appPackageName)));
} catch (android.content.ActivityNotFoundException anfe) {
startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse("http://play.google.com/store/apps/details?id="+ appPackageName)));
}
return true;
}
});
// ==============================================================================
more.setOnPreferenceClickListener(new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
final String developerName = "karopass";
try {startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://search?q="+ developerName)));
} catch (android.content.ActivityNotFoundException anfe) {
startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse("https://play.google.com/store/search?q="+ developerName)));
}
return true;
}
});
share.setOnPreferenceClickListener(new OnPreferenceClickListener() {
public boolean onPreferenceClick(Preference preference) {
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareBody = "आज ही डाउनलोड करे हिंदी शायरी एप्लीकेशन और पाइए बेस्ट हिंदी शायरी.इस एप्लीकेशन में 3000 से भी ज्यादा बढ़िया हिंदी शायरी का कलेक्शन है जिसे आप पढने या शेर करने के लिए यूज कर सकते है !! आज ही डाउनलोड करे !! http://play.google.com/store/apps/details?id=com.karopass.hindishayari2016";
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, " ");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
return false;
}
});
// ==============================================================================
status.setOnPreferenceClickListener(new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
final String appPackageName = "com.karopass.hindi_status_2016";
try {startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id="+ appPackageName)));
} catch (android.content.ActivityNotFoundException anfe) {
startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse("http://play.google.com/store/apps/details?id="+ appPackageName)));
}
return true;
}
});
// ==============================================================================
IntentFilter filter = new IntentFilter(MyDownloadReceiver.ACTION);
filter.addCategory(Intent.CATEGORY_DEFAULT);
receiver = new MyDownloadReceiver();
registerReceiver(receiver, filter);
}
void showProgressBar() {
progress = new MyProgressBarPreference(this);
preferenceScreen.addPreference(progress);
}
void setDownloadProgress(int percent) {
if (progress != null) {
((MyProgressBarPreference)progress).setProgress(percent);
((MyProgressBarPreference)progress).setLabel("Please wait... " +percent + "%"+" Downloading Done");
}
}
void hideProgressBar()
{
if (progress != null)
preferenceScreen.removePreference(progress);
}
public class MyDownloadReceiver extends BroadcastReceiver {
public static final String ACTION = "com.karopass.hindishayari2016.intent.action.DOWNLOAD";
public static final int INITIALIZE = 0x001;
public static final int DOWNLOAD = 0x002;
public static final int FINISH = 0x003;
public static final String EXTRA_STATUS = "status";
public static final String EXTRA_PERCENT = "percent";
@Override
public void onReceive(Context context, Intent intent) {
int status = intent.getIntExtra(EXTRA_STATUS, -1);
Log.d("DESOLF", "receive broadcast : " + status);
switch(status) {
case INITIALIZE:
showProgressBar();
break;
case DOWNLOAD:
int percent = intent.getIntExtra(MyDownloadReceiver.EXTRA_PERCENT, 0);
setDownloadProgress(percent);
break;
case FINISH:
hideProgressBar();
//Toast.makeText(SettingsActivity.this, "Downloaded successfully", Toast.LENGTH_LONG).show();
if (mInterstitial.isLoaded()) {
mInterstitial.show();
}
break;
default:
}
}
}
public class MyProgressBarPreference extends Preference {
public MyProgressBarPreference(Context context) {
super(context);
}
public MyProgressBarPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyProgressBarPreference(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
private ImageView mStatusIcon;
private ProgressBar mProgressBar;
private TextView mStatusText ;
private int lastReqProgress=-1;
private int lastReqMax=-1;
private String lastLabel;
@Override
protected View onCreateView(ViewGroup parent) {
LayoutInflater li = (LayoutInflater) getSystemService(Service.LAYOUT_INFLATER_SERVICE);
View myLayout=li.inflate(R.layout.download_progress, null, false);
RotateAnimation anim = new RotateAnimation(0.0f, 360.0f,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
0.5f);
anim.setInterpolator(new LinearInterpolator());
anim.setRepeatCount(Animation.INFINITE);
anim.setDuration(700);
mStatusIcon = (ImageView) myLayout.findViewById(R.id.status_icon);
mStatusIcon.startAnimation(anim);
mProgressBar=(ProgressBar) myLayout.findViewById(R.id.status_progress);
mStatusText=(TextView) myLayout.findViewById(R.id.status_text);
mStatusIcon.setImageResource(R.drawable.rotate);
mProgressBar.setProgress(0);
mStatusText.setText(0 + "%");
return myLayout;
}
public void setIcon(int resId) {
mStatusIcon.setImageResource(resId);
}
public void setProgress(int value){
if (mProgressBar!=null){
mProgressBar.setProgress(value);
} else {
lastReqProgress=value;
}
}
public void setMax(int value){
if (mProgressBar!=null){
int savedprogress=mProgressBar.getProgress();
mProgressBar.setMax(0);
mProgressBar.setMax(value);
mProgressBar.setProgress(savedprogress);
} else {
lastReqMax=value;
}
}
public void setLabel(String text){
if (lastLabel!=null){
mStatusText.setText(text);
} else {
lastLabel=text;
}
}
}
}
您可以尝试以下代码：
Intent i = new Intent(MainActivity.this, SecondActivity.class);
startActivity(i);
不要忘记在AndroidManifest.xml中添加您的Second Activity：
<activity android:label="@string/app_name" android:name="SecondActivity"/>
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