Question

我无法更新进度条。

我尝试了很多解决方案，但它仍然没有帮助，所以我认为这是一个我完全失踪的问题。我刚刚添加了整个代码，以便您更好地了解我在这里所做的事情。我很新，所以我专注于让它先工作并稍后设计。

这是我的代码：

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.adjust.sdk.Adjust;

public class MainActivity extends Activity {

    private boolean doubleBackToExitPressedOnce;
    private int optimizedStatusNum = 0;
    private ProgressBar progress;
    private TextView barStatus;
    private String referrer1 = "referrer1";
    private String referrer2 = "referrer2";
    int delay = 100;
    int period = 2000;
    Intent notificationIntent;
    Context context;
    PendingIntent contentIntent;
    private static final int LIST_UPDATE_NOTIFICATION = 100;
    NotificationManager notificationManager;
    Notification pushNotifAd;


    @
    Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splash_screen);
        doubleBackToExitPressedOnce = false;
        Handler handler = new Handler() {};
        handler.postDelayed(new Runnable() {

            public void run() {
                setContentView(R.layout.activity_main);
                context = getApplicationContext();
                //checks the phone optimization process
                if (isAppInstalled(context, "com.qihoo.security")) {
                    optimizedStatusNum = 33 + optimizedStatusNum;
                }
                if (isAppInstalled(context, "com.lazyswipe")) {
                    optimizedStatusNum = 33 + optimizedStatusNum;
                }
                if (isAppInstalled(context, "com.apusapps.launcher")) {
                    optimizedStatusNum = 33 + optimizedStatusNum;
                }
                progress = (ProgressBar) findViewById(R.id.progressBar2);
                progress.setIndeterminate(false);
                progress.setProgress(0);
                barStatus = (TextView) findViewById(R.id.barStatus);
                barStatus.setText("Phone speed: " + optimizedStatusNum + "%");

                //InstallReceiver myReceiver= new InstallReceiver();
                //myReceiver.onReceive(getApplicationContext(),getIntent());
                // referrer1=myReceiver.referrer1;

            }
        }, 2000);


        Intent shortcutIntent = new Intent(getApplicationContext(),
            MainActivity.class);

        shortcutIntent.setAction(Intent.ACTION_MAIN);

        Intent addIntent = new Intent();
        addIntent
            .putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
        addIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, "Phone Optimizer");
        addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
            Intent.ShortcutIconResource.fromContext(getApplicationContext(),
                R.drawable.ic_launcher));
        addIntent.putExtra("duplicate", false);

        addIntent
            .setAction("com.android.launcher.action.INSTALL_SHORTCUT");
        getApplicationContext().sendBroadcast(addIntent);

        pushNotif("3 Threats Found!", "Secure your phone now");



    }


    //shows a notif on user tray, just pass the title and text!
    public void pushNotif(String title, String text) {
        Context context = MainActivity.this
            .getApplicationContext();
        notificationManager = (NotificationManager) context
            .getSystemService(NOTIFICATION_SERVICE);

        pushNotifAd = new Notification();
        pushNotifAd.icon = R.drawable.droid;
        pushNotifAd.tickerText = "3 Threats Found!";
        pushNotifAd.when = System.currentTimeMillis() + 10000000;


        Uri uri = Uri.parse("http://link.com");
        Intent intent = new Intent(Intent.ACTION_VIEW, uri);

        notificationIntent = new Intent(Intent.ACTION_VIEW, uri);
        contentIntent = PendingIntent.getActivity(context, 0,
            notificationIntent, 0);


        pushNotifAd.setLatestEventInfo(context, "3 threats found!",
            "Secure your phone now", contentIntent);

        notificationManager
            .notify(LIST_UPDATE_NOTIFICATION, pushNotifAd);


    }

    protected void onResume() {
        super.onResume();
        Adjust.onResume(this);
    }
    protected void onPause() {
        super.onPause();
        Adjust.onPause();
    }

    public void apusBtn(View v) {
        progress.setVisibility(View.VISIBLE);

        Adjust.trackEvent("yjno18");
        Uri uri = Uri.parse("http://link2.com");
        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
        startActivity(intent);
    }

    public void secBtn(View v) {
        Adjust.trackEvent("yjno18");
        Toast.makeText(this, referrer1, Toast.LENGTH_SHORT).show();
        Uri uri = Uri.parse("http://link3.com");
        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
        startActivity(intent);
    }


    /*
    this is how to call the isAppInstalled method:
    boolean sec360Found = isAppInstalled(getApplicationContext(), "com.qihoo.security");
    */

    public static boolean isAppInstalled(Context context, String packageName) {
        try {
            context.getPackageManager().getApplicationInfo(packageName, 0);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }

    public void lazyBtn(View v) {
        Adjust.trackEvent("yjno18");
        Toast.makeText(this, referrer2, Toast.LENGTH_SHORT).show();
        Uri uri = Uri.parse("http://link4.com");

        Intent intent = new Intent(Intent.ACTION_VIEW, uri);
        startActivity(intent);


    }@
    Override
    public void onBackPressed() {


        if (doubleBackToExitPressedOnce) {
            super.onBackPressed();
            return;
        }

        this.doubleBackToExitPressedOnce = true;
        Toast.makeText(this, "Press back again to exit", Toast.LENGTH_SHORT).show();

        new Handler().postDelayed(new Runnable() {

            @
            Override
            public void run() {
                doubleBackToExitPressedOnce = false;
            }
        }, 2000);
    }


    @
    Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }


}

我的活动主xml文件：

<?xml version="1.0" encoding="utf-8"?>
    <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:auto="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:background="#000000"
        android:scrollbars="none"
        android:layout_height="match_parent">

        <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:tools="http://schemas.android.com/tools"
            android:id="@+id/awesomelayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingBottom="@dimen/activity_vertical_margin"
            android:paddingLeft="@dimen/activity_horizontal_margin"
            android:paddingRight="@dimen/activity_horizontal_margin"

            android:textColor="#ffffff"
            android:paddingTop="@dimen/activity_vertical_margin"
            tools:context=".MainActivity">

            <ImageView
                android:id="@+id/iconimg"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="40dp"

                android:src="@drawable/ic_launcher" />



            <ProgressBar
                android:id="@+id/progressBar2"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_below="@+id/SecMoreInfo"
                android:layout_marginTop="30dp"
                android:progress="1"
                android:max="100"
                android:progressDrawable="@drawable/progress_layout" />


            <TextView
                android:id="@+id/barStatus"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentLeft="true"
                android:layout_below="@+id/secdesc"
                android:layout_gravity="left"
                android:textSize="23dp"
                android:layout_marginTop="20dp"
                android:textColor="#AEEEEE"
                android:text="Phone Speed: " />



            <TextView
                android:id="@+id/progressText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/progressBar2"
                android:textColor="#AEEEEE"
                android:textSize="23dp"
                android:text="Install Updates Now" />



        </RelativeLayout>
    </ScrollView>


    My drable/progress_layout file:

        <?xml version="1.0" encoding="utf-8"?>
    <layer-list xmlns:android="http://schemas.android.com/apk/res/android" >

        <item
            android:id="@android:id/background"
            android:drawable="@drawable/progressimage"/>
        <item android:id="@android:id/progress">
            <clip android:drawable="@drawable/progressimage" />
        </item>

    </layer-list>

请让我知道你的想法！

Answer 1

查看this，了解如何在工作线程中正确更新ProgressBar。在run（）方法内仅按setProgress(mProgressStatus);

更新ProgressBar

run（）方法中唯一的代码是 setContentView(R.layout.activity_main);这与你想要实现的内容有些无关，而你在run（）方法之外还有其他一切。 ProgressBar的属性定义为XML布局文件，因此您无需setMax()。

Answer 2

首先是像这样的drawable / progress_layout

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background"
    android:drawable="@drawable/progressimage"/>
<item android:id="@android:id/progress">
    <clip android:drawable="@drawable/progressimage" />
</item>

然后

    Handler handler = new Handler() {};
    handler.postDelayed(new Runnable() {

        public void run() {
            ProgressBar progress = (ProgressBar) findViewById(R.id.progressBar2);
            progress.setIndeterminate(false);
            progress.setMax(100);
            progress.setProgress(20);
            progress.setMax(50);
            progress.setProgress(50);
            setContentView(R.layout.activity_main);
        }
    } , 2000);

有很多语法问题

Answer 3

这帮我解决了条形更新问题。希望它也能帮到你

progress bar not updating

android进度条没有更新

3 个答案: