مربع تقدم

package com.authorwjf.transparentprogressdialog;

import android.os.Bundle;

import android.os.Handler;

import android.app.Activity;

import android.app.Dialog;

import android.content.Context;

import android.view.Gravity;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup.LayoutParams;

import android.view.WindowManager;

import android.view.animation.Animation;

import android.view.animation.LinearInterpolator;

import android.view.animation.RotateAnimation;

import android.widget.ImageView;

import android.widget.LinearLayout;

public class MainActivity extends Activity implements OnClickListener {

private TransparentProgressDialog pd;

private Handler h;

private Runnable r;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

h = new Handler();

pd = new TransparentProgressDialog(this, R.drawable.spinner);

r =new Runnable() {

@Override

public void run() {

if (pd.isShowing()) {

pd.dismiss();

}

}

};

findViewById(R.id.the_button).setOnClickListener(this);

}

@Override

public void onClick(View v) {

pd.show();

h.postDelayed(r,5000);

}

@Override

protected void onDestroy() {

h.removeCallbacks(r);

if (pd.isShowing() ) {

pd.dismiss();

}

super.onDestroy();

}

private class TransparentProgressDialog extends Dialog {

private ImageView iv;

public TransparentProgressDialog(Context context, int resourceIdOfImage) {

super(context, R.style.TransparentProgressDialog);

        WindowManager.LayoutParams wlmp = getWindow().getAttributes();

        wlmp.gravity = Gravity.CENTER_HORIZONTAL;

        getWindow().setAttributes(wlmp);

setTitle(null);

setCancelable(false);

setOnCancelListener(null);

LinearLayout layout = new LinearLayout(context);

layout.setOrientation(LinearLayout.VERTICAL);

LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);

iv = new ImageView(context);

iv.setImageResource(resourceIdOfImage);

layout.addView(iv, params);

addContentView(layout, params);

}

@Override

public void show() {

super.show();

RotateAnimation anim = new RotateAnimation(0.0f, 360.0f , Animation.RELATIVE_TO_SELF, .5f, Animation.RELATIVE_TO_SELF, .5f);

anim.setInterpolator(new LinearInterpolator());

anim.setRepeatCount(Animation.INFINITE);

anim.setDuration(3000);

iv.setAnimation(anim);

iv.startAnimation(anim);

}

}

}

<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="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center_horizontal"

        android:padding="8dp"

        android:textSize="20sp"

        android:text="Transparent Progress Indicator" />

    

    <Button 

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Check it out!"

        android:layout_marginTop="40dp"

        android:layout_gravity="center"

        android:id="@+id/the_button" />"

</LinearLayout>

private class TransparentProgressDialog extends Dialog {
  
 private ImageView iv;
  
 public TransparentProgressDialog(Context context, int resourceIdOfImage) {
  super(context, R.style.TransparentProgressDialog);
         WindowManager.LayoutParams wlmp = getWindow().getAttributes();
         wlmp.gravity = Gravity.CENTER_HORIZONTAL;
         getWindow().setAttributes(wlmp);
  setTitle(null);
  setCancelable(false);
  setOnCancelListener(null);
  LinearLayout layout = new LinearLayout(context);
  layout.setOrientation(LinearLayout.VERTICAL);
  LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
  iv = new ImageView(context);
  iv.setImageResource(resourceIdOfImage);
  layout.addView(iv, params);
  addContentView(layout, params);
 }
  
 @Override
 public void show() {
  super.show();
  RotateAnimation anim = new RotateAnimation(0.0f, 360.0f , Animation.RELATIVE_TO_SELF, .5f, Animation.RELATIVE_TO_SELF, .5f);
  anim.setInterpolator(new LinearInterpolator());
  anim.setRepeatCount(Animation.INFINITE);
  anim.setDuration(3000);
  iv.setAnimation(anim);
  iv.startAnimation(anim);
 }
}