Java Context.startActivity方法代码示例

import android.content.Context; //导入方法依赖的package包/类
public static ActivityScriptExecution execute(Context context, ScriptEngineManager manager, ScriptExecutionTask task) {
    ActivityScriptExecution execution = new ActivityScriptExecution(manager, task);
    Intent i = new Intent(context, ScriptExecuteActivity.class)
            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    IntentExtras.newExtras()
            .put(EXTRA_EXECUTION, execution)
            .putInIntent(i);
    context.startActivity(i);
    return execution;
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void launch(Context context) {
    Intent intent = new Intent();
    intent.setClass(context, XListViewActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_NO_USER_ACTION);

    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
/**
 * Compose a new message as a forward of the given message.
 */
public static void actionForward(Context context, MessageReference messageReference, Parcelable decryptionResult) {
    Intent i = new Intent(context, MessageCompose.class);
    i.putExtra(MessageCompose.EXTRA_MESSAGE_REFERENCE, messageReference.toIdentityString());
    i.putExtra(MessageCompose.EXTRA_MESSAGE_DECRYPTION_RESULT, decryptionResult);
    i.setAction(MessageCompose.ACTION_FORWARD);
    context.startActivity(i);
}
 

import android.content.Context; //导入方法依赖的package包/类
/**
 * 拨打电话
 *
 * @param con
 * @param phonenum
 */
public static void callPhone(Context con, String phonenum) {
    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_CALL);
    intent.setData(Uri.parse("tel:" + phonenum));
    con.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void installAPK(Context context, File file) {
    if (file == null || !file.exists())
        return;
    Intent intent = new Intent();
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.setAction(Intent.ACTION_VIEW);
    intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
/**
  * Adds a cryptographic file (User certificate, a CA certificate or
  * PKCS#12 keychain) through the system's CertInstaller activity.
  *
  * @param context current application context.
  * @param certType cryptographic file type. E.g. CertificateMimeType.X509_USER_CERT
  * @param data certificate/keychain data bytes.
  * @return true on success, false on failure.
  *
  * Note that failure only indicates that the function couldn't launch the
  * CertInstaller activity, not that the certificate/keychain was properly
  * installed to the keystore.
  */
@CalledByNative
public static boolean storeCertificate(Context context, int certType, byte[] data) {
    try {
        Intent intent = KeyChain.createInstallIntent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        switch (certType) {
            case CertificateMimeType.X509_USER_CERT:
            case CertificateMimeType.X509_CA_CERT:
                intent.putExtra(KeyChain.EXTRA_CERTIFICATE, data);
                break;

            case CertificateMimeType.PKCS12_ARCHIVE:
                intent.putExtra(KeyChain.EXTRA_PKCS12, data);
                break;

            default:
                Log.w(TAG, "invalid certificate type: " + certType);
                return false;
        }
        context.startActivity(intent);
        return true;
    } catch (ActivityNotFoundException e) {
        Log.w(TAG, "could not store crypto file: " + e);
    }
    return false;
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void launch(Context context, String input, String phone) {
    Intent intent = new Intent(context, SetPassActivity.class);
    intent.putExtra(INPUT, input);
    intent.putExtra(PHONE, phone);
    context.startActivity(intent);
    ((Activity) context).overridePendingTransition(R.anim.fade_entry, R.anim.hold);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void openDefaultSettings(Context context) {
    Intent settingsIntent = new Intent(Settings.ACTION_SETTINGS);
    settingsIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(settingsIntent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void start(Context context) {
    Intent intent = new Intent(context, CameraActivity.class);
    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void start(Context context) {
    Intent intent = new Intent(context, SettingsActivity.class);
    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void start(Context context) {
    Intent starter = new Intent(context, SpanActivity.class);
    context.startActivity(starter);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void openDail(Context context) {
    Intent intent = new Intent(Intent.ACTION_DIAL);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void show(Context context, User info) {
    Intent intent = new Intent(context, UserDataActivity.class);
    intent.putExtra("user_info", info);
    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void start(Context context) {
    Intent intent = new Intent(context, AboutActivity.class);
    context.startActivity(intent);
}
 

import android.content.Context; //导入方法依赖的package包/类
public static void startActivity(Context context, String query) {
    context.startActivity(new Intent(context, SearchActivity.class)
            .putExtra(INTENT_QUERY, query));
}